BAEL-1602 (#3926)
* Implement examples for ASCII Art in Java * Remove deprecated use of ControllerClassNameHandlerMapping * Implement examples for JSTL core tag * Implement examples for JSTL formatting tags * Implement examples for JSTL SQL tags * Implement examples for JSTL XML tags * Implement examples for JSTL function tags * Setup controllers package scanning * Add link to article on jstl * naming change * Add jstl maven repository
This commit is contained in:
ocheja
Grzegorz Piwowarek
parent
5a44224fd9
commit
460a317e6a
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@ -15,3 +15,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
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- [Geolocation by IP in Java](http://www.baeldung.com/geolocation-by-ip-with-maxmind)
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- [Guide to JavaServer Pages (JSP)](http://www.baeldung.com/jsp)
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- [Exploring SpringMVC’s Form Tag Library](http://www.baeldung.com/spring-mvc-form-tags)
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- [Guide to JSTL](http://www.baeldung.com/guide-to-jstl)
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@ -37,6 +37,13 @@
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<!-- web -->
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>2.9.2</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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@ -57,6 +64,13 @@
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<version>${hibernate-validator.version}</version>
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</dependency>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<version>6.0.6</version>
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</dependency>
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<!-- Json conversion -->
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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@ -108,6 +122,14 @@
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</build>
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<repositories>
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<repository>
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<id>1</id>
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<name>jstl</name>
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<url>https://mvnrepository.com/artifact/javax.servlet/jstl</url>
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</repository>
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</repositories>
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<properties>
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<!-- Spring -->
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<org.springframework.version>5.0.2.RELEASE</org.springframework.version>
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@ -0,0 +1,17 @@
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package com.baeldung.jstl.bundles;
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import java.util.ListResourceBundle;
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public class CustomMessage_en extends ListResourceBundle {
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@Override
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protected Object[][] getContents() {
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return contents;
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}
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static final Object[][] contents = {
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{"verb.go", "go"},
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{"verb.come", "come"},
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{"verb.sit", "sit"},
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{"verb.stand", "stand"}
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};
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}
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@ -0,0 +1,17 @@
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package com.baeldung.jstl.bundles;
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import java.util.ListResourceBundle;
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public class CustomMessage_fr_FR extends ListResourceBundle {
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@Override
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protected Object[][] getContents() {
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return contents;
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}
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static final Object[][] contents = {
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{"verb.go", "aller"},
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{"verb.come", "venir"},
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{"verb.sit", "siéger"},
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{"verb.stand", "se lever"}
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};
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}
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@ -0,0 +1,125 @@
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package com.baeldung.jstl.controllers;
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import com.baeldung.jstl.dbaccess.SQLConnection;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.core.io.FileSystemResource;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.ResponseBody;
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import org.springframework.web.servlet.ModelAndView;
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import javax.annotation.PostConstruct;
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import javax.servlet.ServletContext;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.File;
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import java.sql.*;
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import java.util.Calendar;
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@Controller
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public class JSTLController {
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private static final Logger LOGGER = LoggerFactory.getLogger(JSTLController.class.getName());
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@Autowired
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ServletContext servletContext;
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@PostConstruct
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public void init() {
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PreparedStatement preparedStatement = null;
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Connection connection = null;
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try {
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connection = SQLConnection.getConnection();
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preparedStatement = connection.prepareStatement("create table IF NOT EXISTS USERS " +
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"( id int not null primary key AUTO_INCREMENT," +
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" email VARCHAR(255) not null, first_name varchar (255), last_name varchar (255), registered DATE)");
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int status = preparedStatement.executeUpdate();
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preparedStatement = connection.prepareStatement("SELECT COUNT(*) AS total FROM USERS;");
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ResultSet result = preparedStatement.executeQuery();
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if(result!=null) {
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result.next();
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if (result.getInt("total") == 0) {
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generateDummy(connection);
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}
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} else {
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generateDummy(connection);
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}
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} catch (Exception e) {
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LOGGER.error(e.getMessage());
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} finally {
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try {
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if (preparedStatement != null) {
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preparedStatement.close();
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}
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if (connection != null) {
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connection.close();
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}
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} catch (SQLException e) {
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LOGGER.error(e.getMessage());
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}
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}
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}
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@RequestMapping(value = "/core_tags", method = RequestMethod.GET)
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public ModelAndView coreTags(final Model model) {
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ModelAndView mv = new ModelAndView("core_tags");
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return mv;
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}
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@RequestMapping(value = "/core_tags_redirect", method = RequestMethod.GET)
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public ModelAndView coreTagsRedirect(final Model model) {
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ModelAndView mv = new ModelAndView("core_tags_redirect");
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return mv;
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}
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@RequestMapping(value = "/formatting_tags", method = RequestMethod.GET)
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public ModelAndView formattingTags(final Model model) {
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ModelAndView mv = new ModelAndView("formatting_tags");
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return mv;
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}
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@RequestMapping(value = "/sql_tags", method = RequestMethod.GET)
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public ModelAndView sqlTags(final Model model) {
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ModelAndView mv = new ModelAndView("sql_tags");
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return mv;
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}
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@RequestMapping(value = "/xml_tags", method = RequestMethod.GET)
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public ModelAndView xmlTags(final Model model) {
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ModelAndView mv = new ModelAndView("xml_tags");
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return mv;
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}
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@RequestMapping(value = "/items_xml", method = RequestMethod.GET)
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@ResponseBody public FileSystemResource getFile(HttpServletRequest request, HttpServletResponse response) {
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response.setContentType("application/xml");
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return new FileSystemResource(new File(servletContext.getRealPath("/WEB-INF/items.xsl")));
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}
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@RequestMapping(value = "/function_tags", method = RequestMethod.GET)
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public ModelAndView functionTags(final Model model) {
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ModelAndView mv = new ModelAndView("function_tags");
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return mv;
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}
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private void generateDummy(Connection connection) throws SQLException {
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PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO USERS " +
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"(email, first_name, last_name, registered) VALUES (?, ?, ?, ?);");
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preparedStatement.setString(1, "patrick@baeldung.com");
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preparedStatement.setString(2, "Patrick");
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preparedStatement.setString(3, "Frank");
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preparedStatement.setDate(4, new Date(Calendar.getInstance().getTimeInMillis()));
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preparedStatement.addBatch();
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preparedStatement.setString(1, "bfrank@baeldung.com");
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preparedStatement.setString(2, "Benjamin");
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preparedStatement.setString(3, "Franklin");
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preparedStatement.setDate(4, new Date(Calendar.getInstance().getTimeInMillis()));
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preparedStatement.executeBatch();
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}
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}
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@ -0,0 +1,30 @@
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package com.baeldung.jstl.dbaccess;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.SQLException;
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import java.util.Properties;
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public class SQLConnection {
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private static String userName = "root";
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private static String password = "";
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private static final Logger LOGGER = LoggerFactory.getLogger(SQLConnection.class.getName());
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public static Connection getConnection() throws Exception {
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LOGGER.error("connecting...");
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Class.forName("com.mysql.cj.jdbc.Driver");
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LOGGER.error("class checked...");
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Connection conn = null;
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Properties connectionProps = new Properties();
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connectionProps.put("user", userName);
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connectionProps.put("password", password);
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conn = DriverManager.getConnection(
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"jdbc:mysql://localhost:3306/test?autoReconnect=true&useSSL=false",
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connectionProps);
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LOGGER.info("Connected to database");
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return conn;
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}
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}
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@ -23,7 +23,7 @@
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</mvc:message-converters>
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</mvc:annotation-driven>
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<context:component-scan base-package="com.baeldung.spring.controller"/>
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<context:component-scan base-package="com.baeldung.spring.controller, com.baeldung.jstl.controllers"/>
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<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
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<property name="prefix" value="/WEB-INF/view/"/>
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@ -0,0 +1,27 @@
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<?xml version = "1.0"?>
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<xsl:stylesheet xmlns:xsl = "http://www.w3.org/1999/XSL/Transform" version = "1.0">
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<xsl:output method = "html" indent = "yes"/>
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<xsl:param name = "bgColor"/>
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<xsl:template match = "/">
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<html>
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<body>
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<xsl:apply-templates/>
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</body>
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</html>
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</xsl:template>
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<xsl:template match = "items">
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<table border = "1" width = "40%" bgColor = "{$bgColor}">
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<xsl:for-each select = "item">
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<tr>
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<td><i><xsl:value-of select = "name"/></i></td>
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<td><xsl:value-of select = "category"/></td>
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<td><xsl:value-of select = "price"/></td>
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</tr>
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</xsl:for-each>
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</table>
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</xsl:template>
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</xsl:stylesheet>
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@ -7,7 +7,7 @@
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http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
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<context:component-scan base-package="com.baeldung.spring.controller"/>
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<context:component-scan base-package="com.baeldung.spring.controller, com.baeldung.jstl.controllers"/>
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<!-- Start: Mapping by bean name (BeanNameUrlHandlerMapping) -->
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<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping">
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@ -40,12 +40,6 @@
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<bean id="helloController" class="com.baeldung.spring.controller.HelloController"/>
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<!-- End: Mapping by SimpleUrlHandlerMapping -->
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<!-- Start: Mapping by ControllerClassNameHandlerMapping -->
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<bean
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class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping">
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<property name="caseSensitive" value="true"/>
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<property name="order" value="0"/>
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</bean>
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<bean class="com.baeldung.spring.controller.HelloGuestController"/>
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<!-- End: Mapping by ControllerClassNameHandlerMapping -->
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<%@ page import="java.util.Random" %>
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<%@ page import="java.util.Date" %>
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<%@ page import="java.util.Calendar" %>
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
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<html>
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<head>
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<c:set value="JSTL Core Tags Example" var="pageTitle"/>
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<title>
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<c:out value="${pageTitle}"/>
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</title>
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</head>
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<body>
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<h1>
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<c:out value="${pageTitle}"/>
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</h1>
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<c:remove var="pageTitle"/>
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<p><c:out value="${pageTitle}"/></p>
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<div>
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<h3>
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<c:out value="<c:catch> Example"/>
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</h3>
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<c:catch var ="exceptionThrown">
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<% int x = Integer.valueOf("a");%>
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</c:catch>
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<c:if test = "${exceptionThrown != null}">
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<p>The exception is : ${exceptionThrown} <br />
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There is an exception: ${exceptionThrown.message}</p>
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</c:if>
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</div>
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<div>
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<h3>
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<c:out value="<c:choose> Example"/>
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<c:set value="<%= Calendar.getInstance().get(Calendar.SECOND)%>" var="seconds"/>
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</h3>
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<p>
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<c:choose>
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<c:when test="${seconds le 30 }">
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<c:out value="${seconds} is less than 30"/>
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</c:when>
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<c:when test="${seconds eq 30 }">
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<c:out value="${seconds} is equal to 30"/>
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</c:when>
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<c:otherwise>
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<c:out value="${seconds} is greater than 30"/>
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</c:otherwise>
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</c:choose>
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</p>
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</div>
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<div>
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<h3>
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<c:out value="<c:import> Example"/>
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</h3>
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<c:import var = "data" url = "http://www.example.com"/>
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<c:out value = "${data}"/>
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</div>
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<div>
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<h3>
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<c:out value="<c:forEach> Example"/>
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</h3>
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<c:forEach var = "i" items="1,4,5,6,7,8,9">
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Item <c:out value = "No. ${i}"/><p>
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</c:forEach>
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</div>
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<div>
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<h3>
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<c:out value="<c:forToken> Example"/>
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</h3>
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<c:forTokens items = "Patrick:Wilson:Ibrahima:Chris" delims = ":" var = "name">
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<c:out value = "Name: ${name}"/><p>
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</c:forTokens>
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</div>
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<div>
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<h3>
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<c:out value="<c:url> and <c:param> Example"/>
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</h3>
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<c:url value = "/core_tags" var = "myURL">
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<c:param name = "parameter_1" value = "1234"/>
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<c:param name = "parameter_2" value = "abcd"/>
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</c:url>
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<c:out value = "URL: ${myURL}"/>
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</div>
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</body>
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</html>
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<%@ page import="java.util.Random" %>
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<%@ page import="java.util.Date" %>
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<%@ page import="java.util.Calendar" %>
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
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<html>
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<head>
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<c:set value="JSTL Core Tags Examples" var="pageTitle"/>
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<title>
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<c:out value="${pageTitle}"/>
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</title>
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</head>
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<body>
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<c:redirect url="/core_tags"/>
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</body>
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</html>
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@ -0,0 +1,213 @@
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<%@ page import="java.util.Calendar" %>
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
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<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
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<html>
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<head>
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<c:set value="JSTL Formatting Tags Example" var="pageTitle"/>
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<title>
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<c:out value="${pageTitle}"/>
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</title>
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</head>
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<body>
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<h1>
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<c:out value="${pageTitle}"/>
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</h1>
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<div>
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<h3>
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<c:out value="<fmt:formatNumber> Example"/>
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</h3>
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<c:set var="fee" value="35050.1067"/>
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<p>Formatted Number - Currency: <fmt:formatNumber value="${fee}"
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type="currency"/></p>
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<p>Formatted Number - Maximum Integer Digits: <fmt:formatNumber type="number"
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maxIntegerDigits="2" value="${fee}"/></p>
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<p>Formatted Number - Maximum Fraction Digits: <fmt:formatNumber type="number"
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maxFractionDigits="2" value="${fee}"/></p>
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<p>Formatted Number - Grouping: <fmt:formatNumber type="number"
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groupingUsed="false" value="${fee}"/></p>
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<p>Formatted Number - Percent with Maximum Integer Digits: <fmt:formatNumber type="percent"
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maxIntegerDigits="3"
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value="${fee}"/></p>
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<p>Formatted Number - Percent with Minimum Fraction Digits: <fmt:formatNumber type="percent"
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minFractionDigits="10"
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value="${fee}"/></p>
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<p>Formatted Number Percent with Minimum Integer Digits: <fmt:formatNumber type="percent"
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minIntegerDigits="4" value="${fee}"/></p>
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||||
|
||||
<p>Formatted Number - with Pattern: <fmt:formatNumber type="number"
|
||||
pattern="###.##E0" value="${fee}"/></p>
|
||||
|
||||
<p>Formatted Number - Currency with Internationalization :
|
||||
<fmt:setLocale value="en_US"/>
|
||||
<fmt:formatNumber value="${fee}" type="currency"/>
|
||||
</p>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:parseNumber> Example"/>
|
||||
</h3>
|
||||
<fmt:parseNumber var="i" type="number" value="${fee}"/>
|
||||
<p>Parsed Number : <c:out value="${i}"/></p>
|
||||
<fmt:parseNumber var="i" integerOnly="true"
|
||||
type="number" value="${fee}"/>
|
||||
<p>Parsed Number - with Integer Only set to True: <c:out value="${i}"/></p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="<fmt:formatDate> Example"/>
|
||||
<c:set var="now" value="<%= new java.util.Date()%>"/>
|
||||
</h3>
|
||||
|
||||
<p>Formatted Date - with type set to time: <fmt:formatDate type="time"
|
||||
value="${now}"/></p>
|
||||
|
||||
<p>Formatted Date - with type set to date: <fmt:formatDate type="date"
|
||||
value="${now}"/></p>
|
||||
|
||||
<p>Formatted Date - with type set to both: <fmt:formatDate type="both"
|
||||
value="${now}"/></p>
|
||||
|
||||
<p>Formatted Date - with short style for both date and time: <fmt:formatDate type="both"
|
||||
dateStyle="short" timeStyle="short"
|
||||
value="${now}"/></p>
|
||||
|
||||
<p>Formatted Date - with medium style for both date and time: <fmt:formatDate type="both"
|
||||
dateStyle="medium" timeStyle="medium"
|
||||
value="${now}"/></p>
|
||||
|
||||
<p>Formatted Date - with long style for both date and time: <fmt:formatDate type="both"
|
||||
dateStyle="long" timeStyle="long"
|
||||
value="${now}"/></p>
|
||||
|
||||
<p>Formatted Date - with pattern: <fmt:formatDate pattern="yyyy-MM-dd"
|
||||
value="${now}"/></p>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:parseDate> Example"/>
|
||||
</h3>
|
||||
|
||||
<c:set var="today" value="28-03-2018"/>
|
||||
<fmt:parseDate value="${today}" var="parsedDate" pattern="dd-MM-yyyy"/>
|
||||
<p>Parsed Date: <c:out value="${parsedDate}"/></p>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:bundle> and <fmt:message> Example"/>
|
||||
</h3>
|
||||
|
||||
<p>
|
||||
<fmt:bundle basename="com.baeldung.jstl.bundles.CustomMessage" prefix="verb.">
|
||||
<fmt:message key="go"/><br/>
|
||||
<fmt:message key="come"/><br/>
|
||||
<fmt:message key="sit"/><br/>
|
||||
<fmt:message key="stand"/><br/>
|
||||
</fmt:bundle>
|
||||
</p>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:setLocale> Example"/>
|
||||
</h3>
|
||||
|
||||
<p>
|
||||
<fmt:setLocale value="fr_FR"/>
|
||||
<fmt:bundle basename="com.baeldung.jstl.bundles.CustomMessage" prefix="verb.">
|
||||
<fmt:message key="go"/><br/>
|
||||
<fmt:message key="come"/><br/>
|
||||
<fmt:message key="sit"/><br/>
|
||||
<fmt:message key="stand"/><br/>
|
||||
</fmt:bundle>
|
||||
</p>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:setBundle> Example"/>
|
||||
</h3>
|
||||
|
||||
<p>
|
||||
<fmt:setLocale value="En"/>
|
||||
<fmt:setBundle basename="com.baeldung.jstl.bundles.CustomMessage" var="lang"/>
|
||||
<fmt:message key="verb.go" bundle="${lang}"/><br/>
|
||||
<fmt:message key="verb.come" bundle="${lang}"/><br/>
|
||||
<fmt:message key="verb.sit" bundle="${lang}"/><br/>
|
||||
<fmt:message key="verb.stand" bundle="${lang}"/><br/>
|
||||
</p>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:timeZone> Example"/>
|
||||
</h3>
|
||||
<table border="1" width="40%">
|
||||
<tr>
|
||||
<td width="100%" colspan="2">
|
||||
<p align="center">
|
||||
<b>
|
||||
<font size="4">Time being formatted:
|
||||
<fmt:formatDate value="${now}" type="both"
|
||||
timeStyle="long" dateStyle="long"/>
|
||||
</font>
|
||||
</b>
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
<c:forEach var="zone"
|
||||
items="<%= java.util.TimeZone.getAvailableIDs()%>" end="4">
|
||||
<tr>
|
||||
<td width="51%">
|
||||
<c:out value="${zone}"/>
|
||||
</td>
|
||||
<td width="49%">
|
||||
<fmt:timeZone value="${zone}">
|
||||
<fmt:formatDate value="${now}" timeZone="${zn}"
|
||||
type="both"/>
|
||||
</fmt:timeZone>
|
||||
</td>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
</div>
|
||||
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:setTimeZone> Example"/>
|
||||
</h3>
|
||||
|
||||
<p>Current Date with Default Time Zone: <fmt:formatDate value="${now}"
|
||||
type="both" timeStyle="long" dateStyle="long"/></p>
|
||||
<p>Change Time Zone to GMT+9</p>
|
||||
<fmt:setTimeZone value="GMT+9"/>
|
||||
<p>Date in Changed Zone: <fmt:formatDate value="${now}"
|
||||
type="both" timeStyle="long" dateStyle="long"/></p>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<fmt:requestEncoding> Example"/>
|
||||
</h3>
|
||||
<fmt:requestEncoding value = "UTF-8" />
|
||||
<fmt:setLocale value = "fr_FR"/>
|
||||
<fmt:setBundle basename = "com.baeldung.jstl.bundles.CustomMessage" var = "lang"/>
|
||||
<fmt:message key="verb.go" bundle="${lang}"/><br/>
|
||||
<fmt:message key="verb.come" bundle="${lang}"/><br/>
|
||||
<fmt:message key="verb.sit" bundle="${lang}"/><br/>
|
||||
<fmt:message key="verb.stand" bundle="${lang}"/><br/>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -0,0 +1,151 @@
|
|||
<%@ page import="java.util.Random" %>
|
||||
<%@ page import="java.util.Date" %>
|
||||
<%@ page import="java.util.Calendar" %>
|
||||
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
|
||||
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
|
||||
<%@ taglib prefix = "fn"
|
||||
uri = "http://java.sun.com/jsp/jstl/functions" %>
|
||||
<html>
|
||||
<head>
|
||||
<c:set value="JSTL Function Tags Example" var="pageTitle"/>
|
||||
<title>
|
||||
<c:out value="${pageTitle}"/>
|
||||
</title>
|
||||
</head>
|
||||
<body>
|
||||
<h1>
|
||||
<c:out value="${pageTitle}"/>
|
||||
</h1>
|
||||
<c:set var = "string1" value = "This is first string"/>
|
||||
<c:set var = "string2" value = "This is second string with <tag>test XML</tag>"/>
|
||||
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:contains() Example"/>
|
||||
</h3>
|
||||
<c:if test = "${fn:contains(string1, 'first')}">
|
||||
<p>Found 'first' in string<p>
|
||||
</c:if>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:containsIgnoreCase() Example"/>
|
||||
</h3>
|
||||
<c:if test = "${fn:containsIgnoreCase(string1, 'first')}">
|
||||
<p>Found 'first' string<p>
|
||||
</c:if>
|
||||
|
||||
<c:if test = "${fn:containsIgnoreCase(string1, 'FIRST')}">
|
||||
<p>Found 'FIRST' string<p>
|
||||
</c:if>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:endsWith() Example"/>
|
||||
</h3>
|
||||
<c:if test = "${fn:endsWith(string1, 'string')}">
|
||||
<p>String ends with 'string'<p>
|
||||
</c:if>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:escapeXml() Example"/>
|
||||
</h3>
|
||||
<p>With escapeXml() Function:</p>
|
||||
<p>string (1) : ${fn:escapeXml(string1)}</p>
|
||||
<p>string (2) : ${fn:escapeXml(string2)}</p>
|
||||
|
||||
<p>Without escapeXml() Function:</p>
|
||||
<p>string (1) : ${string1}</p>
|
||||
<p>string (2) : ${string2}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:indexOf() Example"/>
|
||||
</h3>
|
||||
<p>Index (1) : ${fn:indexOf(string1, "first")}</p>
|
||||
<p>Index (2) : ${fn:indexOf(string2, "second")}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:join() and fn:split() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string3" value = "${fn:split(string1, ' ')}" />
|
||||
<c:set var = "string4" value = "${fn:join(string3, '-')}" />
|
||||
<p>Final String : ${string4}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:length() Example"/>
|
||||
</h3>
|
||||
<p>Length of String (1) : ${fn:length(string1)}</p>
|
||||
<p>Length of String (2) : ${fn:length(string2)}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:replace() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string3" value = "${fn:replace(string1, 'first', 'third')}" />
|
||||
<p>Final String : ${string3}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:startsWith() Example"/>
|
||||
</h3>
|
||||
<c:if test = "${fn:startsWith(string1, 'This')}">
|
||||
<p>String starts with 'This'</p>
|
||||
</c:if>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:substring() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string3" value = "${fn:substring(string1, 5, 15)}" />
|
||||
|
||||
<p>Final sub string : ${string3}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:substringAfter() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string3" value = "${fn:substringAfter(string1, 'is')}" />
|
||||
|
||||
<p>Final sub string : ${string3}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:substringBefore() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string3" value = "${fn:substringBefore(string1, 'is')}" />
|
||||
|
||||
<p>Final sub string : ${string3}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:toLowerCase() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string3" value = "${fn:toLowerCase(string1)}" />
|
||||
|
||||
<p>Final string : ${string3}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:toUpperCase() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string3" value = "${fn:toUpperCase(string1)}" />
|
||||
|
||||
<p>Final string : ${string3}</p>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="fn:trim() Example"/>
|
||||
</h3>
|
||||
<c:set var = "string1" value = "This is first String "/>
|
||||
<p>String (1) Length : ${fn:length(string1)}</p>
|
||||
|
||||
<c:set var = "string2" value = "${fn:trim(string1)}" />
|
||||
<p>String (2) Length : ${fn:length(string2)}</p>
|
||||
<p>Final string : "${string2}"</p>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -0,0 +1,198 @@
|
|||
<%@ page import="java.util.Random" %>
|
||||
<%@ page import="java.util.Date" %>
|
||||
<%@ page import="java.util.Calendar" %>
|
||||
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
|
||||
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
|
||||
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %>
|
||||
<html>
|
||||
<head>
|
||||
<c:set value="JSTL SQL Tags Example" var="pageTitle"/>
|
||||
<title>
|
||||
<c:out value="${pageTitle}"/>
|
||||
</title>
|
||||
</head>
|
||||
<body>
|
||||
<h1>
|
||||
<c:out value="${pageTitle}"/>
|
||||
</h1>
|
||||
<!--
|
||||
sql:setDataSource Example
|
||||
-->
|
||||
<sql:setDataSource var="dataSource" driver="com.mysql.cj.jdbc.Driver"
|
||||
url="jdbc:mysql://localhost/test"
|
||||
user="root" password=""/>
|
||||
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<sql:query> Example"/>
|
||||
</h3>
|
||||
<sql:query dataSource="${dataSource}" var="result">
|
||||
SELECT * from USERS;
|
||||
</sql:query>
|
||||
<table border="1" width="50%">
|
||||
<tr>
|
||||
<th>User ID</th>
|
||||
<th>First Name</th>
|
||||
<th>Last Name</th>
|
||||
<th>Email</th>
|
||||
<th>Registered</th>
|
||||
</tr>
|
||||
|
||||
<c:forEach var="user" items="${result.rows}" varStatus="iterator">
|
||||
<tr>
|
||||
<td><c:out value="${iterator.index + 1}"/></td>
|
||||
<td><c:out value="${user.first_name}"/></td>
|
||||
<td><c:out value="${user.last_name}"/></td>
|
||||
<td><c:out value="${user.email}"/></td>
|
||||
<td><c:out value="${user.registered}"/></td>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="<sql:update> Example"/>
|
||||
</h3>
|
||||
|
||||
<sql:update dataSource="${dataSource}" var="count">
|
||||
INSERT INTO USERS(first_name, last_name, email) VALUES ('Grace', 'Adams', 'gracea@domain.com');
|
||||
</sql:update>
|
||||
<sql:query dataSource="${dataSource}" var="result">
|
||||
SELECT * from USERS;
|
||||
</sql:query>
|
||||
<table border="1" width="50%">
|
||||
<tr>
|
||||
<th>User ID</th>
|
||||
<th>First Name</th>
|
||||
<th>Last Name</th>
|
||||
<th>Email</th>
|
||||
<th>Registered</th>
|
||||
</tr>
|
||||
|
||||
<c:forEach var="user" items="${result.rows}" varStatus="iterator">
|
||||
<tr>
|
||||
<td><c:out value="${iterator.index + 1}"/></td>
|
||||
<td><c:out value="${user.first_name}"/></td>
|
||||
<td><c:out value="${user.last_name}"/></td>
|
||||
<td><c:out value="${user.email}"/></td>
|
||||
<td><c:out value="${user.registered}"/></td>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<sql:param> Example"/>
|
||||
</h3>
|
||||
|
||||
<sql:update dataSource = "${dataSource}" var = "count">
|
||||
DELETE FROM USERS WHERE email = ?
|
||||
<sql:param value = "gracea@domain.com" />
|
||||
</sql:update>
|
||||
<sql:query dataSource="${dataSource}" var="result">
|
||||
SELECT * from USERS;
|
||||
</sql:query>
|
||||
<table border="1" width="50%">
|
||||
<tr>
|
||||
<th>User ID</th>
|
||||
<th>First Name</th>
|
||||
<th>Last Name</th>
|
||||
<th>Email</th>
|
||||
<th>Registered</th>
|
||||
</tr>
|
||||
|
||||
<c:forEach var="user" items="${result.rows}" varStatus="iterator">
|
||||
<tr>
|
||||
<td><c:out value="${iterator.index + 1}"/></td>
|
||||
<td><c:out value="${user.first_name}"/></td>
|
||||
<td><c:out value="${user.last_name}"/></td>
|
||||
<td><c:out value="${user.email}"/></td>
|
||||
<td><c:out value="${user.registered}"/></td>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<sql:dateParam> Example"/>
|
||||
</h3>
|
||||
<%
|
||||
Date registered = new Date("2018/03/31");
|
||||
String email = "patrick@baeldung.com";
|
||||
%>
|
||||
|
||||
<sql:update dataSource = "${dataSource}" var = "count">
|
||||
UPDATE Users SET registered = ? WHERE email = ?
|
||||
<sql:dateParam value = "<%=registered%>" type = "DATE" />
|
||||
<sql:param value = "<%=email%>" />
|
||||
</sql:update>
|
||||
<sql:query dataSource="${dataSource}" var="result">
|
||||
SELECT * from USERS;
|
||||
</sql:query>
|
||||
<table border="1" width="50%">
|
||||
<tr>
|
||||
<th>User ID</th>
|
||||
<th>First Name</th>
|
||||
<th>Last Name</th>
|
||||
<th>Email</th>
|
||||
<th>Registered</th>
|
||||
</tr>
|
||||
|
||||
<c:forEach var="user" items="${result.rows}" varStatus="iterator">
|
||||
<tr>
|
||||
<td><c:out value="${iterator.index + 1}"/></td>
|
||||
<td><c:out value="${user.first_name}"/></td>
|
||||
<td><c:out value="${user.last_name}"/></td>
|
||||
<td><c:out value="${user.email}"/></td>
|
||||
<td><c:out value="${user.registered}"/></td>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<sql:transaction> Example"/>
|
||||
</h3>
|
||||
<sql:transaction dataSource = "${dataSource}">
|
||||
<sql:update var = "count">
|
||||
UPDATE Users SET first_name = 'Patrick-Ellis' WHERE email='patrick@baeldung.com'
|
||||
</sql:update>
|
||||
|
||||
<sql:update var = "count">
|
||||
UPDATE Users SET last_name = 'Nelson' WHERE email = 'patrick@baeldung.com'
|
||||
</sql:update>
|
||||
|
||||
<sql:update var = "count">
|
||||
INSERT INTO Users(first_name, last_name, email) VALUES ('Grace', 'Adams', 'gracea@domain.com');
|
||||
</sql:update>
|
||||
</sql:transaction>
|
||||
<sql:query dataSource="${dataSource}" var="result">
|
||||
SELECT * from USERS;
|
||||
</sql:query>
|
||||
<table border="1" width="50%">
|
||||
<tr>
|
||||
<th>User ID</th>
|
||||
<th>First Name</th>
|
||||
<th>Last Name</th>
|
||||
<th>Email</th>
|
||||
<th>Registered</th>
|
||||
</tr>
|
||||
|
||||
<c:forEach var="user" items="${result.rows}" varStatus="iterator">
|
||||
<tr>
|
||||
<td><c:out value="${iterator.index + 1}"/></td>
|
||||
<td><c:out value="${user.first_name}"/></td>
|
||||
<td><c:out value="${user.last_name}"/></td>
|
||||
<td><c:out value="${user.email}"/></td>
|
||||
<td><c:out value="${user.registered}"/></td>
|
||||
</tr>
|
||||
</c:forEach>
|
||||
</table>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -0,0 +1,99 @@
|
|||
<%@ page import="java.util.Random" %>
|
||||
<%@ page import="java.util.Date" %>
|
||||
<%@ page import="java.util.Calendar" %>
|
||||
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
|
||||
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
|
||||
<%@ taglib prefix="x" uri="http://java.sun.com/jsp/jstl/xml" %>
|
||||
<html>
|
||||
<head>
|
||||
<c:set value="JSTL XML Tags Example" var="pageTitle"/>
|
||||
<title>
|
||||
<c:out value="${pageTitle}"/>
|
||||
</title>
|
||||
</head>
|
||||
<body>
|
||||
<h1>
|
||||
<c:out value="${pageTitle}"/>
|
||||
</h1>
|
||||
<c:remove var="pageTitle"/>
|
||||
<p><c:out value="${pageTitle}"/></p>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="<x:transform>, <x::param>, <x:parse>, <x:set>, <x:out>, and <x:if> Examples"/>
|
||||
</h3>
|
||||
<h3>Store Items:</h3>
|
||||
<c:set var="xmltext">
|
||||
<items>
|
||||
<item>
|
||||
<name>Steve Madden</name>
|
||||
<category>Sneakers</category>
|
||||
<price>34</price>
|
||||
</item>
|
||||
|
||||
<item>
|
||||
<name>Pearl Izumi</name>
|
||||
<category>Sneakers</category>
|
||||
<price>80</price>
|
||||
</item>
|
||||
|
||||
<item>
|
||||
<name>Katy Perry</name>
|
||||
<category>Heels</category>
|
||||
<price>72</price>
|
||||
</item>
|
||||
</items>
|
||||
</c:set>
|
||||
|
||||
<x:parse xml="${xmltext}" var="output"/>
|
||||
<b>The name of the first item listed in the store is</b>:
|
||||
<x:out select="$output/items/item[1]/name"/> with price $<x:out select="$output/items/item[1]/price"/>
|
||||
<br>
|
||||
|
||||
<x:set var="fragment" select="$output//item"/>
|
||||
<b>The second item is </b>:
|
||||
<c:out value="${fragment}"/>
|
||||
|
||||
<x:if select="$output//item">
|
||||
Document has at least one
|
||||
<item> element.
|
||||
</x:if>
|
||||
<br/>
|
||||
|
||||
<c:import url="/items_xml" var="xslt"/>
|
||||
<x:transform xml="${xmltext}" xslt="${xslt}">
|
||||
<x:param name="bgColor" value="blue"/>
|
||||
</x:transform>
|
||||
</div>
|
||||
<div>
|
||||
|
||||
<h3>
|
||||
<c:out value="<x:forEach> Example"/>
|
||||
</h3>
|
||||
<ul class="items">
|
||||
<x:forEach select="$output/items/item/name" var="item">
|
||||
<li>Item Name: <x:out select="$item"/></li>
|
||||
</x:forEach>
|
||||
</ul>
|
||||
</div>
|
||||
<div>
|
||||
<h3>
|
||||
<c:out value="<x:choose>, <x:when> and <x:otherwise> Example"/>
|
||||
</h3>
|
||||
|
||||
<x:choose>
|
||||
<x:when select="$output//item/category = 'Sneakers'">
|
||||
Item category is Sneakers
|
||||
</x:when>
|
||||
|
||||
<x:when select="$output//item/category = 'Heels'">
|
||||
Item category is Heels
|
||||
</x:when>
|
||||
|
||||
<x:otherwise>
|
||||
Unknown category.
|
||||
</x:otherwise>
|
||||
</x:choose>
|
||||
</div>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
Loading…
Reference in New Issue