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tomcat app ex (#2625)

This commit is contained in:
lor6 2017-09-24 00:57:46 +03:00 committed by Eugen
parent dca9403876
commit 8ed5c8e293
9 changed files with 314 additions and 0 deletions
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3
guest/tomcat-app/WebContent/META-INF/MANIFEST.MF Normal file
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Manifest-Version: 1.0
Class-Path:

28
guest/tomcat-app/WebContent/WEB-INF/web.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<display-name>tomcat-app</display-name>
<servlet>
<servlet-name>tomcat-app</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.stackify.ApplicationInitializer</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>tomcat-app</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<filter>
<filter-name>javamelody</filter-name>
<filter-class>net.bull.javamelody.MonitoringFilter</filter-class>
<init-param>
<param-name>gzip-compression-disabled</param-name>
<param-value>true</param-value>
</init-param>
</filter>
</web-app>

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guest/tomcat-app/pom.xml Normal file
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.stackify</groupId>
<artifactId>tomcat-app</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.25.1</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-moxy</artifactId>
<version>2.25.1</version>
</dependency>
<dependency>
<groupId>io.rest-assured</groupId>
<artifactId>rest-assured</artifactId>
<version>3.0.3</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.4.195</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.8.2</version>
</dependency>
<dependency>
<groupId>net.bull.javamelody</groupId>
<artifactId>javamelody-core</artifactId>
<version>1.69.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
</configuration>
</plugin>
</plugins>
</build>
</project>

9
guest/tomcat-app/src/main/java/com/stackify/ApplicationInitializer.java Normal file
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package com.stackify;
import org.glassfish.jersey.server.ResourceConfig;
public class ApplicationInitializer extends ResourceConfig {
public ApplicationInitializer() {
packages("com.stackify.services");
}
}

67
guest/tomcat-app/src/main/java/com/stackify/daos/UserDAO.java Normal file
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package com.stackify.daos;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import com.stackify.models.User;
import com.stackify.utils.ConnectionUtil;
public class UserDAO {
private Logger logger = LogManager.getLogger(UserDAO.class);
public void createTable() {
try (Connection con = ConnectionUtil.getConnection()) {
String createQuery = "CREATE TABLE IF NOT EXISTS users(email varchar(50) primary key, name varchar(50))";
PreparedStatement pstmt = con.prepareStatement(createQuery);
pstmt.execute();
} catch (SQLException exc) {
logger.error(exc.getMessage());
}
}
public void add(User user) {
try (Connection con = ConnectionUtil.getConnection()) {
String insertQuery = "INSERT INTO users(email,name) VALUES(?,?)";
PreparedStatement pstmt = con.prepareStatement(insertQuery);
pstmt.setString(1, user.getEmail());
pstmt.setString(2, user.getName());
pstmt.executeUpdate();
} catch (SQLException exc) {
logger.error(exc.getMessage());
}
}
public List<User> findAll() {
List<User> users = new ArrayList<>();
try (Connection con = ConnectionUtil.getConnection()) {
String query = "SELECT * FROM users";
PreparedStatement pstmt = con.prepareStatement(query);
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
User user = new User();
user.setEmail(rs.getString("email"));
user.setName(rs.getString("name"));
users.add(user);
}
} catch (SQLException exc) {
logger.error(exc.getMessage());
}
return users;
}
}

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guest/tomcat-app/src/main/java/com/stackify/models/User.java Normal file
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package com.stackify.models;
import javax.ws.rs.core.Link;
public class User {
private String email;
private String name;
private Link link;
public User() {
}
public User(String email, String name) {
super();
this.email = email;
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Link getLink() {
return link;
}
public void setLink(Link link) {
this.link = link;
}
}

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guest/tomcat-app/src/main/java/com/stackify/services/CorsFilter.java Normal file
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package com.stackify.services;
import java.io.IOException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.ext.Provider;
@Provider
public class CorsFilter implements ContainerResponseFilter {
@Override
public void filter(final ContainerRequestContext requestContext,
final ContainerResponseContext response) throws IOException {
response.getHeaders().add("Access-Control-Allow-Origin", "*");
response.getHeaders().add("Access-Control-Allow-Headers", "origin, content-type, accept");
}
}

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guest/tomcat-app/src/main/java/com/stackify/services/UserService.java Normal file
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package com.stackify.services;
import java.util.List;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import com.stackify.daos.UserDAO;
import com.stackify.models.User;
@Path("/users")
public class UserService {
private UserDAO userDao = new UserDAO();
public UserService (){
userDao.createTable();
}
@POST
@Consumes(MediaType.APPLICATION_JSON)
public Response addUser(User user) {
userDao.add(user);
return Response.ok()
.build();
}
@GET
@Produces(MediaType.APPLICATION_JSON)
public List<User> getUsers() {
return userDao.findAll();
}
}

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guest/tomcat-app/src/main/java/com/stackify/utils/ConnectionUtil.java Normal file
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package com.stackify.utils;
import java.sql.Connection;
import java.sql.SQLException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class ConnectionUtil {
private static Logger logger = LogManager.getLogger(ConnectionUtil.class);
public static Connection getConnection() {
try {
String jndiName = "java:/comp/env/jdbc/MyDataSource";
Context initialContext = new InitialContext();
DataSource datasource = (DataSource)initialContext.lookup(jndiName);
if (datasource != null) {
return datasource.getConnection();
}
else {
logger.error("Failed to lookup datasource.");
}
}
catch (NamingException | SQLException exc) {
logger.error(exc.getMessage());
}
return null;
}
}