SpringMVC接收页面表单参数方式汇总

摘要

Spring MVC属于SpringFrameWork的后续产品,已经融合在Spring Web Flow里面。Spring 框架提供了构建 Web 应用程序的全功能 MVC 模块。使用 Spring

一个普通的表单。

  表单的代码如下:

 


<%@ 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>Add User</title><script type="text/javascript">
    //添加用户
    function addUser() {        var form = document.forms[0];
        form.action = "${pageContext.request.contextPath}/user/addUser1";        //form.action = "${pageContext.request.contextPath}/user/addUser2";
        //form.action = "${pageContext.request.contextPath}/user/addUser3";        form.method = "post";
        form.submit();
    }</script></head><body>
    <form>
        <table>
            <tr>
                <td>账号</td>
                <td>
                    <input type="text" name="userName">
                </td>
            </tr>
            <tr>
                <td>密码</td>
                <td>
                    <input type="password" name="password">
                </td>
            </tr>
            <tr>
                <td>&nbsp;</td>
                <td>
                    <input type="button" value="提交" onclick="addUser()">
                </td>
            </tr>
        </table>
    </form></body></html>


  1、直接把表单的参数写在Controller相应的方法的形参中

@RequestMapping("/addUser1")    public String addUser1(String userName,String password) {
        System.out.println("userName is:"+userName);
        System.out.println("password is:"+password);        return "/user/success";
    }

  2、通过HttpServletRequest接收


@RequestMapping("/addUser2")    public String addUser2(HttpServletRequest request) {
        String userName = request.getParameter("userName");
        String password = request.getParameter("password");
        System.out.println("userName is:"+userName);
        System.out.println("password is:"+password);        return "/user/success";
    }


  3、通过一个bean来接收

    1)建立一个和表单中参数对应的bean


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;
    }
}


    2)用这个bean来封装接收的参数

@RequestMapping("/addUser3")    public String addUser3(User user) {
        System.out.println("userName is:"+user.getUserName());
        System.out.println("password is:"+user.getPassword());        return "/user/success";
    }

   4、通过json数据接收


Add User
    
        
            
                账号
                
                    
                
            
            
                密码

  依然可以使用bean来接收json数据

@RequestMapping("/addUser4")    public String addUser4(User user) {
        System.out.println("userName is:"+user.getUserName());
        System.out.println("password is:"+user.getPassword());        return "/user/success";
    }

  5、使用jQuery的serializeArray() 方法序列化表单元素

    如果表单元素很多,手工拼装成json数据非常麻烦,可以使用jQuery提供的serializeArray()方法序列化表单元素,返回json数据结构数据。  


<%@ 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>Add User</title><script type="text/javascript" src="${pageContext.request.contextPath}/resource/script/jquery-1.9.1.min.js"></script><script type="text/javascript">
    $(document).ready(function(){
        $("#button_submit").click(function(){            
            //序列化表单元素,返回json数据
            var params = $("#userForm").serializeArray();            
            //也可以把表单之外的元素按照name value的格式存进来
            //params.push({name:"hello",value:"man"});            
            $.ajax({
                type:"POST",
                url:"${pageContext.request.contextPath}/user/addUser5",
                data:params,
                success:function(data){
                    alert("成功");
                },
                error:function(e) {
                    alert("出错:"+e);
                }
            });
        });
    });</script></head><body>
    <form id="userForm">
        <table>
            <tr>
                <td>账号</td>
                <td>
                    <input type="text" id="userName" name="userName">
                </td>
            </tr>
            <tr>
                <td>密码</td>
                <td>
                    <input type="password" id="password" name="password">
                </td>
            </tr>
            <tr>
                <td>&nbsp;</td>
                <td>
                    <input type="button" id="button_submit" value="提交">
                </td>
            </tr>
        </table>
    </form></body></html>

  依然可以使用bean来接收json数据:

@RequestMapping("/addUser5")    public String addUser5(User user) {
        System.out.println("userName is:"+user.getUserName());
        System.out.println("password is:"+user.getPassword());        return "/user/success";
    }


IT家园
IT家园

网友最新评论 (0)