Struts2提交表单，获取数据

第一种方式：

login.jsp里：

　　<form action="loginAction!login" method="post">
        用户名：<input name="uname"><br>
        密码：<input type="password" name="upwd"><br>
        <input type="submit" value="提交">
    </form>

struts.xml里：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>

    <package name="xsl" namespace="/" extends="struts-default">
        
        <action name="loginAction" class="com.xsl.action.LoginAction" method="login">
        <result name="success">/success.jsp</result>
        </action>
        
    </package>
    
</struts>    

LoginAction.java里：

package com.xsl.action;

import com.opensymphony.xwork2.ActionSupport;
5 
public class LoginAction extends ActionSupport {
    
    private String uname;
    private String upwd;
    
    public String login(){
        System.out.println("login...");
        System.out.println(uname+"---"+upwd);
        if(users!=null){
            System.out.println();
        }
        return SUCCESS;
    }

    public String getUname() {
        return uname;
    }

    public void setUname(String uname) {
        this.uname = uname;
    }

    public String getUpwd() {
        return upwd;
    }

    public void setUpwd(String upwd) {
        this.upwd = upwd;
    }
    
    
}

 第二种方式：

Users.java类：

package com.xsl.entity;

public class Users {
    private String uname;
    private String upwd;
    public String getUname() {
        return uname;
    }
    public void setUname(String uname) {
        this.uname = uname;
    }
    public String getUpwd() {
        return upwd;
    }
    public void setUpwd(String upwd) {
        this.upwd = upwd;
    }
    
}

login.jsp里：

    <form action="loginAction!login" method="post">
        用户名：<input name="users.uname"><br>
        密码：<input type="password" name="users.upwd"><br>
        <input type="submit" value="提交">
    </form>

struts.xml里：（同上）

LoginAction.java里：

package com.xsl.action;

import com.opensymphony.xwork2.ActionSupport;
import com.xsl.entity.Users;

public class LoginAction extends ActionSupport {
    
    private Users users;//struts2中的实体类属性可以不要new
    
    public String login(){
        System.out.println("login...");
        if(users!=null){
            System.out.println(users.getUname()+"---"+users.getUpwd());
        }
        return SUCCESS;
    }


    public Users getUsers() {
        return users;
    }

    public void setUsers(Users users) {
        this.users = users;
    }
    
    
}