Source link: https://app.box.com/s/q47fwfkiam0j98nuuncl
- Create a Struts2 project with eclipse
- Convert to maven project
- First HelloStruts2 example
1. Create a Dynamic Web Project with eclipse Kepler:
Eclipse -> new project -> select Dynamic Web Project -> enter Project name (HelloStruts2) -> select Next -> select Generate web.xml and click finish.Add struts.xml to folder /WEB-INF/classes. Create folder /classes if it does not existed.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
</struts>
Add the filter StrutsPrepareAndExecuteFilter to web.xml as the below:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="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_0.xsd" id="WebApp_ID" version="3.0">
<display-name>HelloStruts2</display-name>
<display-name>Struts2 with eclipse and maven</display-name>
<welcome-file-list>
<welcome-file>pages/index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
2. Convert to maven project:
Right click on project -> Configure -> Convert to Maven Project.Add dependency for struts2 in pom.xml:
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>2.3.16.3</version>
</dependency>
3. First HelloStruts2 example
Create HelloAction.java
package com.vmtram.struts2.action;
public class HelloAction {
private static final String SUCCESS = "SUCCESS";
private String username;
public String doAction() {
return SUCCESS;
}
// Getter & Setter
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
} Mapping the action in struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="helloWorld" extends="struts-default">
<action name="hello" class="com.vmtram.struts2.action.HelloAction"
method="doAction">
<result name="SUCCESS">/pages/hello-view.jsp</result>
</action>
</package>
</struts>
Create a view index.jsp to input data
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Index</title>
</head>
<body>
<s:form action="hello">
<s:textfield name="username" label="Enter your name" />
<s:submit value="SUBMIT" />
</s:form>
</body>
</html>
Create a view hello-view.jsp to show data
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Hello view</title>
</head>
<body>
Hello
<s:property value="username" />
</body>
</html>
The project structure:
No comments:
Post a Comment