SpringMVC接收頁面表單引數
阿新 • • 發佈：2019-02-07
一個普通的表單。
表單的程式碼如下：
<%@ 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"> //新增使用者 function addUser() { var form = document.forms[0]; form.action = "${pageContext.request.contextPath}/user/addUser1"; //form.action = "${pageContext.request.contextPath}/user/addUser2"; //form.action = "${pageContext.request.contextPath}/user/addUser3"; form.method = "post"; form.submit(); } </script> </head> <body> <form> <table> <tr> <td>賬號</td> <td> <input type="text" name="userName"> </td> </tr> <tr> <td>密碼</td> <td> <input type="password" name="password"> </td> </tr> <tr> <td> </td> <td> <input type="button" value="提交" onclick="addUser()"> </td> </tr> </table> </form> </body> </html>
1、直接把表單的引數寫在Controller相應的方法的形參中
@RequestMapping("/addUser1")
public String addUser1(String userName,String password) {
System.out.println("userName is:"+userName);
System.out.println("password is:"+password);
return "/user/success";
}2、通過HttpServletRequest接收
@RequestMapping("/addUser2") public String addUser2(HttpServletRequest request) { String userName = request.getParameter("userName"); String password = request.getParameter("password"); System.out.println("userName is:"+userName); System.out.println("password is:"+password); return "/user/success"; }
3、通過一個bean來接收
1）建立一個和表單中引數對應的bean
public class User { private String userName; private String password; public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }
2）用這個bean來封裝接收的引數
@RequestMapping("/addUser3")
public String addUser3(User user) {
System.out.println("userName is:"+user.getUserName());
System.out.println("password is:"+user.getPassword());
return "/user/success";
}4、通過json資料接收
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Add User</title>
<script type="text/javascript" src="${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> </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資料
@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資料非常麻煩，可以使用jQuery提供的serializeArray()方法序列化表單元素，返回json資料結構資料。
<%@ 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資料
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> </td>
<td>
<input type="button" id="button_submit" value="提交">
</td>
</tr>
</table>
</form>
</body>
</html>@RequestMapping("/addUser5")
public String addUser5(User user) {
System.out.println("userName is:"+user.getUserName());
System.out.println("password is:"+user.getPassword());
return "/user/success";
}