SpringMVC接收页面表单参数

本文最后更新于：5 个月前

几个简单的Spring mvc页面表单提交获取数据后台接收参数实现

转：http://www.cnblogs.com/luxh/archive/2013/03/14/2960152.html

1、直接把表单的参数写在Controller相应的方法的形参中

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@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

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@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

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public class User {
    
    private String userName;
    
    private String password;
 
    //省略了get和set方法也可以用@Data
}

2）用这个bean来封装接收的参数

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@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

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<%@ 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(){
            var name = $("#userName").val();
            var pass = $("#password").val();
            
 
            var user = {userName:name,password:pass};//拼装成json格式
            
            $.ajax({
                type:"POST",
                url:"${pageContext.request.contextPath}/user/addUser4",
                data:user,
                success:function(data){
                    alert("成功");
                },
                error:function(e) {
                    alert("出错："+e);
                }
            });
        });
    });
</script>
 
</head>
<body>
    <form>
        <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> </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

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@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。

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<%@ 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> </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：

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@RequestMapping("/addUser5")
    public String addUser5(User user) {
        System.out.println("userName is:"+user.getUserName());
        System.out.println("password is:"+user.getPassword());
        return "/user/success";
    }
后端
#Java #error
SpringMVC接收页面表单参数
https://changzer.gitee.io/2021/08/19/后端——SpringMVC接收页面表单参数/
作者
长泽
发布于
2021年8月19日
许可协议