Struts2 HelloWorld
Struts2 HelloWorld
1、开发环境（Eclipse3.4 ，tomcat5.5，jdk1.5）
2、jar包（见附件lib）
3、web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>TestStruts2</display-name>
<filter>
<filter-name>Struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>Struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
4、struts.xml
<?xml version="1.0" encoding="GBK"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="WebContent" extends="struts-default"> <action name="Login" class="action.LoginAction"> <result name="error">/error.jsp</result> <result name="success">/welcome.jsp</result> </action> </package> </struts>
5、action
package action;
public class LoginAction
{
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String execute() throws Exception
{
if(getUsername().equals("scott") && getPassword().equals("tiger") )
{
return "success";
}
else
{
return "error";
}
}
}
6、jsp页面
<%@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<!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>Insert title here</title>
</head>
<body>
<form action="Login.action" method="post">
<table align="center">
<caption><h3>用户登录</h3></caption>
<tr>
<td>用户名：<input type="text" name="username"/></td>
</tr>
<tr>
<td>密 码：<input type="text" name="password"/></td>
</tr>
<tr align="center">
<td colspan="2"><input type="submit" value="登录"/>
<input type="reset" value="重填" /></td>
</tr>
</table>
</form>
</body>
</html>
7、注意：tomcat5.5中common下endorsed文件夹下的两个jar包，需要替换一下，tomcat5.5原来带的不是很好用，使用HelloWorld Demo 中lib下的就可以用。
8、JUnit Test
package action;
import static org.junit.Assert.*;
import org.junit.Test;
import com.opensymphony.xwork2.ActionSupport;
public class LoginActionTest {
@Test
public void testExecute()
{
LoginAction hello = new LoginAction();
hello.setUsername("scott");
hello.setPassword("tiger");
String result;
try
{
result = hello.execute();
assertTrue("Expected a success result!", ActionSupport.SUCCESS.equals(result));
final String msg = "scott";
assertTrue("Expected the default username!", msg.equals(hello.getUsername()));
}
catch (Exception e)
{
e.printStackTrace();
}
}
}