struts2特性介绍
1. 自动获取和设置数据(get、set)
2. 继承ActionSupport类(常用,舍弃原来的实现Action接口)
3. Action设置数据:属性驱动(基本类型属性和javaBean属性)和模型驱动
1.第一步:编写struts.xml请求
<!-- 属性驱动 基本类型属性 -->
<action name="user" class="com.newbeedaly.action.UserAction">
<result name="success">success.jsp</result>
<result name="error">error.jsp</result>
</action>
<!-- 属性驱动 javaBean(常用)-->
<action name="user2" class="com.newbeedaly.action.UserAction2">
<result name="success">success.jsp</result>
<result name="error">error.jsp</result>
</action>
<!-- 模型驱动 (少见) -->
<action name="user3" class="com.newbeedaly.action.UserAction3">
<result name="success">success.jsp</result>
<result name="error">error.jsp</result>
</action>
2.第二步:编写User.java
package com.newbeedaly.model;
public class User {
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;
}
}
3.第三步:编写UserService.java
package com.newbeedaly.service;
import com.newbeedaly.model.User;
public class UserService {
public boolean login(User user){
if("newbeedaly".equals(user.getUserName())&&"123456".equals(user.getPassword())){
return true;
}else{
return false;
}
}
}
4.第四步:编写请求Action.java
package com.newbeedaly.action;
import com.newbeedaly.model.User;
import com.newbeedaly.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport{
/**
*
*/
private static final long serialVersionUID = 1L;
private UserService userService=new UserService();
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;
}
@Override
public String execute() throws Exception {
System.out.println("执行了UserAction的默认方法");
User user=new User();
user.setUserName(userName);
user.setPassword(password);
if(userService.login(user)){
return SUCCESS;
}else{
return ERROR;
}
}
}
package com.newbeedaly.action;
import com.newbeedaly.model.User;
import com.newbeedaly.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction2 extends ActionSupport{
/**
*
*/
private static final long serialVersionUID = 1L;
private UserService userService=new UserService();
private User user;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
@Override
public String execute() throws Exception {
System.out.println("执行了UserAction的默认方法");
if(userService.login(user)){
return SUCCESS;
}else{
return ERROR;
}
}
}
package com.newbeedaly.action;
import com.newbeedaly.model.User;
import com.newbeedaly.service.UserService;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
public class UserAction3 extends ActionSupport implements ModelDriven<User>{
/**
*
*/
private static final long serialVersionUID = 1L;
private UserService userService=new UserService();
private User user=new User();
@Override
public String execute() throws Exception {
System.out.println("执行了UserAction3的默认方法");
if(userService.login(user)){
return SUCCESS;
}else{
return ERROR;
}
}
@Override
public User getModel() {
// TODO Auto-generated method stub
return user;
}
}
5.第五步:编写页面login.jsp,login2.jsp,login3.jsp,success.jsp,error.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="user" method="post">
用户名:<input type="text" name="userName"/>
密码:<input type="text" name="password"/>
<input type="submit" value="登录"/>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="user2" method="post">
用户名:<input type="text" name="user.userName"/>
密码:<input type="text" name="user.password"/>
<input type="submit" value="登录"/>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="user3" method="post">
用户名:<input type="text" name="userName"/>
密码:<input type="text" name="password"/>
<input type="submit" value="登录"/>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
登录成功!
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
登录失败!
</body>
</html>
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