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 = "${pageContext.request.contextPath}/user/addUser3";
- form.method = "post";
- form.submit();
- }
- </script>
- </head>
- <body>
- <form>
- <table>
- <tr>
- <td>账号</td>
- <td>
- <input type="text" name="userName">
- </td>
- </tr>
- <tr>
- <td>密码</td>
- <td>
- <input type="password" name="password">
- </td>
- </tr>
- <tr>
- <td> </td>
- <td>
- <input type="button" value="提交" οnclick="addUser()">
- </td>
- </tr>
- </table>
- </form>
- </body>
- </html>
- @RequestMapping("/addUser1")
- public String addUser1(String userName,String password) {
- System.out.println("userName is:"+userName);
- System.out.println("password is:"+password);
- return "/user/success";
- }
2、通过HttpServletRequest接收
- @RequestMapping("/addUser2")
- public String addUser2(HttpServletRequest request) {
- String userName = request.getParameter("userName");
- String password = request.getParameter("password");
- System.out.println("userName is:"+userName);
- System.out.println("password is:"+password);
- return "/user/success";
- }
3、通过一个bean来接收
1)建立一个和表单中参数对应的bean
- public class User {
- private String userName;
- private String password;
- public String getUserName() {
- return userName;
- }
- public void setUserName(String userName) {
- this.userName = userName;
- }
- public String getPassword() {
- return password;
- }
- public void setPassword(String password) {
- this.password = password;
- }
- }
2)用这个bean来封装接收的参数
- @RequestMapping("/addUser3")
- public String addUser3(User user) {
- System.out.println("userName is:"+user.getUserName());
- System.out.println("password is:"+user.getPassword());
- return "/user/success";
- }
4、通过json数据接收
- <%@ page language="java" contentType="text/html; charset=UTF-8"
- pageEncoding="UTF-8"%>
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
- <title>Add User</title>
- <script type="text/javascript" src="${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
- @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。
- <%@ 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:
-
- @RequestMapping("/addUser5")
- public String addUser5(User user) {
- System.out.println("userName is:"+user.getUserName());
- System.out.println("password is:"+user.getPassword());
- return "/user/success";
- }