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struts属性驱动与模型驱动

2013-02-24 23:24 429 查看

Struts2的属性驱动是使用Action的属性来封装来回请求参数和处理结果，即在jsp页面的每一个form中的name都对应在action中有一个属性与之对应。

Struts2的模型驱动的意思是使用单独的JavaBean来封装请求参数和处理结果。

一、属性驱动(1)

User JavaBean代码如下：

package com.hsinghsu.testSSH.model;

public class User {

private Long id;
private String name;
private String pwd;

public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}

}

action代码如下:

package com.hsinghsu.testSSH.action;

import org.springframework.beans.factory.annotation.Autowired;

import com.hsinghsu.testSSH.service.UserService;

public class LoginAction extends BaseAction {

/**
*
*/
private static final long serialVersionUID = -6144396976094110475L;

@Autowired
private UserService userService;

private String username;
private String password;

public String execute() throws Exception
{
System.out.println("username:"+username+" password:"+password);
if(userService.login(username,password))
{
return "success";
}
return "error";
}

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;
}

}

struts.xml配置如下：

<action name="mylogin" class="com.hsinghsu.testSSH.action.LoginAction">
<result name="success">/jsp/welcome.jsp</result>
<result name="error">/jsp/login.jsp</result>
</action>

<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Insert title here</title>
</head>
<body>
<form action="mylogin.action" method="post">
Username:<input type="text" name="username"/><br/>
Password:<input type="password" name="password"/><br/>
<input type="submit" value="Submit"/>
</form>
</body>
</html>

welcome.jsp代码如下：

<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>IWelcome</title>
</head>
<body>
Welcome <s:property value="username"/>
</body>
</html>

二、属性驱动(2)：

action代码如下：

package com.hsinghsu.testSSH.action;

import org.springframework.beans.factory.annotation.Autowired;

import com.hsinghsu.testSSH.model.User;
import com.hsinghsu.testSSH.service.UserService;

public class NoUserDrivenLoginAction extends BaseAction {

/**
*
*/
private static final long serialVersionUID = -3116586181830026380L;

private User user;

@Autowired
private UserService userService;

public String execute() throws Exception
{
System.out.println("username:"+user.getName()+" password:"+user.getPwd());
if(userService.login(user.getName(),user.getPwd()))
{
return "success";
}
return "error";
}

public User getUser() {
return user;
}

public void setUser(User user) {
this.user = user;
}

}

struts.xml配置如下：

<action name="noDrivenLogin" class="com.hsinghsu.testSSH.action.NoUserDrivenLoginAction">
<result name="success">/jsp/noDrivenWelcome.jsp</result>
<result name="error">/jsp/noDrivenLogin.jsp</result>
</action>

noDrivenLogin.jsp代码如下：

<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Insert title here</title>
</head>
<body>
<form action="noDrivenLogin.action" method="post">
Username:<input type="text" name="user.name"/><br/>
Password:<input type="password" name="user.pwd"/><br/>
<input type="submit" value="Submit"/>
</form>
</body>
</html>

noDrivenWelcome.jsp代码如下：

<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>IWelcome</title>
</head>
<body>
Welcome <s:property value="user.name"/>
</body>
</html>

三、模型驱动：

在模型驱动中，action类需要继承ModelDriven接口，并必须要实现getModel()方法。

action代码如下：

package com.hsinghsu.testSSH.action;

import org.springframework.beans.factory.annotation.Autowired;

import com.hsinghsu.testSSH.model.User;
import com.hsinghsu.testSSH.service.UserService;
import com.opensymphony.xwork2.ModelDriven;

public class UserDrivenLoginAction extends BaseAction implements ModelDriven<User>{

/**
*
*/
private static final long serialVersionUID = -3116586181830026380L;

private User user = new User();

@Autowired
private UserService userService;

public String execute() throws Exception
{
System.out.println("username:"+user.getName()+" password:"+user.getPwd());
if(userService.login(user.getName(),user.getPwd()))
{
return "success";
}
return "error";
}

@Override
public User getModel() {
return user;
}

}

struts.xml配置如下：

<action name="drivenLogin" class="com.hsinghsu.testSSH.action.UserDrivenLoginAction">
<result name="success">/jsp/drivenWelcome.jsp</result>
<result name="error">/jsp/drivenLogin.jsp</result>
</action>

drivenLogin.jsp代码如下：

<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Insert title here</title>
</head>
<body>
<form action="drivenLogin.action" method="post">
Username:<input type="text" name="name"/><br/>
Password:<input type="password" name="pwd"/><br/>
<input type="submit" value="Submit"/>
</form>
</body>
</html>

drivenWelcome.jsp代码如下：

<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>IWelcome</title>
</head>
<body>
Welcome <s:property value="name"/>
</body>
</html>

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