新建一个User类
package com.ssm.entity;
public class User {
private String username;
private int userage;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public int getUserage() {
return userage;
}
public void setUserage(int userage) {
this.userage = userage;
}
}
TestGetDataController.java
package com.ssm.controller;
import com.ssm.entity.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import javax.servlet.http.HttpServletRequest;
@Controller
@RequestMapping("testGD")
public class TestGetDataController {
private final String returnJspName = "../showGetData";
// 1.HttpServletRequest 方式
@RequestMapping("httpSR")
public String httpServletRequest(HttpServletRequest request){
String username = request.getParameter("username");
int userAge = Integer.parseInt(request.getParameter("userage"));
System.out.printf("接收到的姓名为:%s,接收到的年龄为:%d\n",username,userAge);
return returnJspName;
}
// 2.普通方式 「请求参数名和Controller方法的参数一致
@RequestMapping("general")
public String general(String username,int userage){
System.out.printf("接收到的姓名为:%s,接收到的年龄为:%d\n",username,userage);
return returnJspName;
}
// 3.@RequestParam 注解 请求参数名可以与方法参数名不一致
@RequestMapping("requestParam")
public String requestParam(@RequestParam("username") String uname,@RequestParam("userage") int userAge){
System.out.printf("接收到的姓名为:%s,接收到的年龄为:%d\n",uname,userAge);
return returnJspName;
}
// 4.对象方式 请求参数与Controller方法的对象的参数一致
@RequestMapping("object")
public String object(User user){
System.out.printf("接收到的姓名为:%s,接收到的年龄为:%d\n",user.getUsername(),user.getUserage());
return returnJspName;
}
}testGetData.jsp (在web目录下)
<%--
Created by IntelliJ IDEA.
User: dream
Date: 2024/4/14
Time: 14:03
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>TestGetData</title>
</head>
<body>
<form action="testGD/httpSR" method="post">
<label>
姓名:
<input type="text" name="username">
</label><br>
<label>
年龄:
<input type="text" name="userage">
</label><br>
<input type="submit" value="1.HttpServletRequest方式">
</form>
<hr>
<form action="testGD/general" method="post">
<label>
姓名:
<input type="text" name="username">
</label><br>
<label>
年龄:
<input type="text" name="userage">
</label><br>
<input type="submit" value="2.普通方式">
</form>
<hr>
<form action="testGD/requestParam" method="post">
<label>
姓名:
<input type="text" name="username">
</label><br>
<label>
年龄:
<input type="text" name="userage">
</label><br>
<input type="submit" value="3. @RequestParam 注解方式">
</form>
<hr>
<form action="testGD/object" method="post">
<label>
姓名:
<input type="text" name="username">
</label><br>
<label>
年龄:
<input type="text" name="userage">
</label><br>
<input type="submit" value="4.对象方式">
</form>
<hr>
</body>
</html>showGetData.jsp
<%--
Created by IntelliJ IDEA.
User: dream
Date: 2024/4/14
Time: 14:10
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Dream</title>
</head>
<body>
在这里写学号姓名
</body>
</html>