Struts2第二天
第一节： Struts2 get/set自动获取/设置数据
action
package com.java1234.action;
import com.opensymphony.xwork2.Action;
public class HelloWorldAction implements Action{
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String execute() throws Exception {
System.out.println("执行了Action的默认方法");
return SUCCESS;
}
}
JSP
URL提交
<%@ 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>
${name }大爷你好！
</body>
</html>
form表单提交
<%@ 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="hello" method="post">
name：<input type="text" name="name"/><input type="submit" value="Submit"/>
</form>
</body>
</html>
第二节: ActionSupport类的引入
action
package com.java1234.action;
import com.opensymphony.xwork2.ActionSupport;
public class HelloWorldAction2 extends ActionSupport{
/**
*
*/
private static final long serialVersionUID = 1L;
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String execute() throws Exception {
System.out.println("执行了HelloWorldAction2 Action的默认方法");
return SUCCESS;
}
}
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>
登录成功！
</body>
</html>
第三节: Action设置数据
第一种方式: 属性驱动（FieldDriven） A、基本数据类型属性 B、JavaBean类型属性
第三种方式: 模型驱动（ModelDriven）
基本数据类型
action
package com.java1234.action;
import com.java1234.model.User;
import com.java1234.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;
}
}
}
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>
Service
package com.java1234.service;
import com.java1234.model.User;
public class UserService {
public boolean login(User user)
{
if("java1234".equals(user.getUserName())&&"123456".equals(user.getPassword())){
return true;
}else{
return false;
}
}
}
JavaBean数据类型
action
package com.java1234.action;
import com.java1234.model.User;
import com.java1234.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;
}
}
}
model
package com.java1234.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;
}
}
Service
package com.java1234.service;
import com.java1234.model.User;
public class UserService {
public boolean login(User user){
if("java1234".equals(user.getUserName())&&"123456".equals(user.getPassword())){
return true;
}else{
return false;
}
}
}
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="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>
模型驱动
action
package com.java1234.action;
import com.java1234.model.User;
import com.java1234.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;
}
}
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="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>
struts2.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>
<package name="helloWorld" extends="struts-default">
<action name="hello" class="com.java1234.action.HelloWorldAction2">
<result name="success">helloWorld.jsp</result>
</action>
<action name="user" class="com.java1234.action.UserAction">
<result name="success">success.jsp</result>
<result name="error">error.jsp</result>
</action>
<action name="user2" class="com.java1234.action.UserAction2">
<result name="success">success.jsp</result>
<result name="error">error.jsp</result>
</action>
<action name="user3" class="com.java1234.action.UserAction3">
<result name="success">success.jsp</result>
<result name="error">error.jsp</result>
</action>
</package>
</struts>