SpringMVC接收頁面表單參數

本文轉載自查看原文 2013-03-14 19:58 21822 SpringMVC

　　一個普通的表單。

　　表單的代碼如下：

<%@ 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">
    //添加用戶
    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>賬號</td>
                <td>
                    <input type="text" name="userName">
                </td>
            </tr>
            <tr>
                <td>密碼</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、直接把表單的參數寫在Controller相應的方法的形參中

@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、通過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、通過一個bean來接收

　　　　1）建立一個和表單中參數對應的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）用這個bean來封裝接收的參數

@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、通過json數據接收

<%@ 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};//拼裝成json格式
            
            $.ajax({
                type:"POST",
                url:"${pageContext.request.contextPath}/user/addUser4",
                data:user,
                success:function(data){
                    alert("成功");
                },
                error:function(e) {
                    alert("出錯："+e);
                }
            });
        });
    });
</script>

</head>
<body>
    <form>
        <table>
            <tr>
                <td>賬號</td>
                <td>
                    <input type="text" id="userName" name="userName">
                </td>
            </tr>
            <tr>
                <td>密碼</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來接收json數據

@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() 方法序列化表單元素

　　　　如果表單元素很多，手工拼裝成json數據非常麻煩，可以使用jQuery提供的serializeArray()方法序列化表單元素，返回json數據結構數據。　　

<%@ 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(){
            
            //序列化表單元素，返回json數據
            var params = $("#userForm").serializeArray();
            
            //也可以把表單之外的元素按照name value的格式存進來
            //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("出錯："+e);
                }
            });
        });
    });
</script>

</head>
<body>
    <form id="userForm">
        <table>
            <tr>
                <td>賬號</td>
                <td>
                    <input type="text" id="userName" name="userName">
                </td>
            </tr>
            <tr>
                <td>密碼</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來接收json數據：

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

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