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Context and Servlet Initialization Parameters (#4656)

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* Add source files

* Add readme.md

* Add web.xml

* Update pom.xml

* Update pom.xml

* Update pom.xml

* Remove project folder

* Update pom.xml
This commit is contained in:
Alejandro Gervasio 2018-07-10 00:34:19 -03:00 committed by KevinGilmore
parent acf731377e
commit ca1a1d70fa
9 changed files with 213 additions and 250 deletions
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56
javax-servlet-init-params/pom.xml
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@ -1,56 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<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.baeldung.javax-servlet-init-params</groupId>
<artifactId>javax-servlet-init-params</artifactId>
<version>1.0</version>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.9.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>2.18.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>el-api</artifactId>
<version>2.2</version>
</dependency>
</dependencies>
</project>

14
javax-servlet-init-params/src/main/webapp/WEB-INF/web.xml
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@ -1,14 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<context-param>
<param-name>province</param-name>
<param-value>Mendoza</param-value>
</context-param>
<context-param>
<param-name>country</param-name>
<param-value>Argentina</param-value>
</context-param>
</web-app>

183
javax-servlets/pom.xml
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@ -1,79 +1,104 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" <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"> 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> <modelVersion>4.0.0</modelVersion>
<artifactId>javax-servlets</artifactId> <groupId>com.baeldung.javax-servlets</groupId>
<version>1.0-SNAPSHOT</version> <artifactId>javax-servlets</artifactId>
<version>1.0-SNAPSHOT</version>
<parent> <packaging>war</packaging>
<groupId>com.baeldung</groupId> <parent>
<artifactId>parent-modules</artifactId> <groupId>com.baeldung</groupId>
<version>1.0.0-SNAPSHOT</version> <artifactId>parent-modules</artifactId>
</parent> <version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies> <dependencies>
<!-- File Uploading --> <dependency>
<dependency> <groupId>junit</groupId>
<groupId>commons-fileupload</groupId> <artifactId>junit</artifactId>
<artifactId>commons-fileupload</artifactId> <version>4.12</version>
<version>1.3.3</version> <scope>test</scope>
</dependency> </dependency>
<dependency> <dependency>
<groupId>commons-io</groupId> <groupId>org.assertj</groupId>
<artifactId>commons-io</artifactId> <artifactId>assertj-core</artifactId>
<version>2.6</version> <version>3.9.1</version>
</dependency> <scope>test</scope>
</dependency>
<!-- Servlet --> <dependency>
<dependency> <groupId>org.hamcrest</groupId>
<groupId>javax.servlet</groupId> <artifactId>hamcrest-core</artifactId>
<artifactId>javax.servlet-api</artifactId> <version>1.3</version>
<version>4.0.1</version> <scope>test</scope>
</dependency> </dependency>
<dependency> <dependency>
<groupId>javax.servlet.jsp.jstl</groupId> <groupId>org.mockito</groupId>
<artifactId>jstl-api</artifactId> <artifactId>mockito-core</artifactId>
<version>1.2</version> <version>2.18.3</version>
</dependency> <scope>test</scope>
<dependency> </dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId> <!-- File Uploading -->
<version>2.3.1</version> <dependency>
</dependency> <groupId>commons-fileupload</groupId>
<dependency> <artifactId>commons-fileupload</artifactId>
<groupId>javax.servlet</groupId> <version>1.3.3</version>
<artifactId>jstl</artifactId> </dependency>
<version>1.2</version> <dependency>
</dependency> <groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<dependency> <version>2.6</version>
<groupId>org.apache.httpcomponents</groupId> </dependency>
<artifactId>httpclient</artifactId>
<version>${org.apache.httpcomponents.version}</version> <!-- Servlet -->
<scope>test</scope> <dependency>
<exclusions> <groupId>javax.servlet</groupId>
<exclusion> <artifactId>javax.servlet-api</artifactId>
<artifactId>commons-logging</artifactId> <version>4.0.1</version>
<groupId>commons-logging</groupId> </dependency>
</exclusion> <dependency>
</exclusions> <groupId>javax.servlet.jsp.jstl</groupId>
</dependency> <artifactId>jstl-api</artifactId>
<dependency> <version>1.2</version>
<groupId>com.google.code.gson</groupId> </dependency>
<artifactId>gson</artifactId> <dependency>
<version>${gson.version}</version> <groupId>javax.servlet.jsp</groupId>
</dependency> <artifactId>javax.servlet.jsp-api</artifactId>
<dependency> <version>2.3.1</version>
<groupId>org.springframework</groupId> </dependency>
<artifactId>spring-test</artifactId> <dependency>
<version>${spring-test.version}</version> <groupId>javax.servlet</groupId>
<scope>test</scope> <artifactId>jstl</artifactId>
</dependency> <version>1.2</version>
</dependencies> </dependency>
<properties> <dependency>
<org.apache.httpcomponents.version>4.5.3</org.apache.httpcomponents.version> <groupId>org.apache.httpcomponents</groupId>
<spring-test.version>5.0.5.RELEASE</spring-test.version> <artifactId>httpclient</artifactId>
<gson.version>2.8.2</gson.version> <version>${org.apache.httpcomponents.version}</version>
</properties> <scope>test</scope>
</project> <exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>${gson.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-test.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<javax.servlet.version>3.1.0</javax.servlet.version>
<org.apache.httpcomponents.version>4.5.3</org.apache.httpcomponents.version>
<spring-test.version>5.0.5.RELEASE</spring-test.version>
<gson.version>2.8.2</gson.version>
</properties>
</project>

96
javax-servlet-init-params/src/main/java/com/baeldung/servlets/UserServlet.java → javax-servlets/src/main/java/com/baeldung/servlets/UserServlet.java
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@ -1,49 +1,49 @@
package com.baeldung.servlets; package com.baeldung.servlets;
import java.io.IOException; import java.io.IOException;
import javax.servlet.ServletException; import javax.servlet.ServletException;
import javax.servlet.annotation.WebInitParam; import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet; import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpServletResponse;
@WebServlet(name = "UserServlet", urlPatterns = {"/userServlet"}, initParams={ @WebServlet(name = "UserServlet", urlPatterns = {"/userServlet"}, initParams={
@WebInitParam(name="name", value="Not provided"), @WebInitParam(name="name", value="Not provided"),
@WebInitParam(name="email", value="Not provided")}) @WebInitParam(name="email", value="Not provided")})
public class UserServlet extends HttpServlet { public class UserServlet extends HttpServlet {
@Override @Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { throws ServletException, IOException {
} }
@Override @Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { throws ServletException, IOException {
processRequest(request, response); processRequest(request, response);
forwardRequest(request, response, "/WEB-INF/jsp/result.jsp"); forwardRequest(request, response, "/WEB-INF/jsp/result.jsp");
} }
protected void processRequest(HttpServletRequest request, HttpServletResponse response) protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { throws ServletException, IOException {
request.setAttribute("name", getRequestParameter(request, "name")); request.setAttribute("name", getRequestParameter(request, "name"));
request.setAttribute("email", getRequestParameter(request, "email")); request.setAttribute("email", getRequestParameter(request, "email"));
request.setAttribute("province", getContextParameter("province")); request.setAttribute("province", getContextParameter("province"));
request.setAttribute("country", getContextParameter("country")); request.setAttribute("country", getContextParameter("country"));
} }
protected String getRequestParameter(HttpServletRequest request, String name) { protected String getRequestParameter(HttpServletRequest request, String name) {
String param = request.getParameter(name); String param = request.getParameter(name);
return !param.isEmpty() ? param : getInitParameter(name); return !param.isEmpty() ? param : getInitParameter(name);
} }
protected String getContextParameter(String name) { protected String getContextParameter(String name) {
return getServletContext().getInitParameter(name); return getServletContext().getInitParameter(name);
} }
protected void forwardRequest(HttpServletRequest request, HttpServletResponse response, String path) protected void forwardRequest(HttpServletRequest request, HttpServletResponse response, String path)
throws ServletException, IOException { throws ServletException, IOException {
request.getRequestDispatcher(path).forward(request, response); request.getRequestDispatcher(path).forward(request, response);
} }
} }

0
javax-servlet-init-params/src/main/webapp/WEB-INF/jsp/result.jsp → javax-servlets/src/main/webapp/WEB-INF/jsp/result.jsp
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10
javax-servlets/src/main/webapp/WEB-INF/web.xml
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@ -1,9 +1,17 @@
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd" http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd"
version="3.1"> version="3.1">
<context-param>
<param-name>province</param-name>
<param-value>Mendoza</param-value>
</context-param>
<context-param>
<param-name>country</param-name>
<param-value>Argentina</param-value>
</context-param>
<error-page> <error-page>
<error-code>404</error-code> <error-code>404</error-code>
<location>/error-404.html</location> <!-- /src/main/webapp/error-404.html--> <location>/error-404.html</location> <!-- /src/main/webapp/error-404.html-->

2
javax-servlet-init-params/src/main/webapp/index.jsp → javax-servlets/src/main/webapp/user.jsp
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@ -3,7 +3,7 @@
<!DOCTYPE html> <!DOCTYPE html>
<html> <html>
<head> <head>
<title>Context and Initialization Servlet Parameters</title> <title>Context and Servlet Initialization Parameters</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head> </head>
<body> <body>

0
javax-servlets/src/test/java/com/baeldung/servlets/FormServletLiveTest.java → javax-servlets/src/test/java/com/baeldung/test/FormServletLiveTest.java
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102
javax-servlet-init-params/src/test/java/com/baeldung/test/UserServletUnitTest.java → javax-servlets/src/test/java/com/baeldung/test/UserServletUnitTest.java
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@ -1,52 +1,52 @@
package com.baeldung.test; package com.baeldung.servlets;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpServletResponse;
import static org.assertj.core.api.Assertions.assertThat; import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass; import org.junit.BeforeClass;
import org.junit.Test; import org.junit.Test;
import static org.mockito.Mockito.atLeast; import static org.mockito.Mockito.atLeast;
import static org.mockito.Mockito.mock; import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify; import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when; import static org.mockito.Mockito.when;
public class UserServletUnitTest { public class UserServletUnitTest {
private static HttpServletRequest request; private static HttpServletRequest request;
private static HttpServletResponse response; private static HttpServletResponse response;
@BeforeClass @BeforeClass
public static void setUpHttpServletRequestMockInstance() { public static void setUpHttpServletRequestMockInstance() {
request = mock(HttpServletRequest.class); request = mock(HttpServletRequest.class);
} }
@BeforeClass @BeforeClass
public static void setUpHttpServletResponsetMockInstance() { public static void setUpHttpServletResponsetMockInstance() {
response = mock(HttpServletResponse.class); response = mock(HttpServletResponse.class);
} }
@Test @Test
public void givenHttpServletRequestMockInstance_whenCalledgetParameter_thenCalledAtLeastOnce() { public void givenHttpServletRequestMockInstance_whenCalledgetParameter_thenCalledAtLeastOnce() {
request.getParameter("name"); request.getParameter("name");
verify(request, atLeast(1)).getParameter("name"); verify(request, atLeast(1)).getParameter("name");
} }
@Test @Test
public void givenHttpServletRequestMockInstance_whenCalledgetParameter_thenOneAssertion() { public void givenHttpServletRequestMockInstance_whenCalledgetParameter_thenOneAssertion() {
when(request.getParameter("name")).thenReturn("username"); when(request.getParameter("name")).thenReturn("username");
assertThat(request.getParameter("name")).isEqualTo("username"); assertThat(request.getParameter("name")).isEqualTo("username");
} }
@Test @Test
public void givenHttpServletResponseMockInstance_whenCalledgetContentType_thenCalledAtLeastOnce() { public void givenHttpServletResponseMockInstance_whenCalledgetContentType_thenCalledAtLeastOnce() {
response.getContentType(); response.getContentType();
verify(response, atLeast(1)).getContentType(); verify(response, atLeast(1)).getContentType();
} }
@Test @Test
public void givenHttpServletResponseMockInstance_whenCalledgetContentType_thenOneAssertion() { public void givenHttpServletResponseMockInstance_whenCalledgetContentType_thenOneAssertion() {
when(response.getContentType()).thenReturn("text/html"); when(response.getContentType()).thenReturn("text/html");
assertThat(response.getContentType()).isEqualTo("text/html"); assertThat(response.getContentType()).isEqualTo("text/html");
} }
} }