SpringMVC进阶
2023-11-29 10:13:40 星期三
数据的接收
a）页面传递的属性名和后台接受的属性名不一致时，如何处理？
@RequestParam("页面组件中的属性名")
@RequestMapping(value = "/login",
method = RequestMethod.POST)
public String login(@RequestParam("uname") String name,
@RequestParam("upasswd") String password){
System.out.println(name+"-"+password);
return null;
}
Spring:MVC命名空间
<!--
springmvc注解的驱动
默认创建：RequestMappingHandlerMapping、RequestMappingHandlerAdapter
-->
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--
springmvc注解的驱动
默认创建：RequestMappingHandlerMapping、RequestMappingHandlerAdapter
-->
<mvc:annotation-driven/>
<!--
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
-->
<context:component-scan base-package="com.neuedu.controller"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"></bean>
</beans>
UserController
package com.bboy.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
/**
* @类描述：
* @作者：秦帅
* @时间：2023/11/29 0029 10:17:17
*/
@Controller
public class UserController {
@RequestMapping(value = "/login",
method = RequestMethod.POST)
public String login(@RequestParam("uname") String name,
@RequestParam("upasswd") String password){
System.out.println(name+"-"+password);
return null;
}
@RequestMapping(value = "/test",
method = RequestMethod.GET)
public String test(int id,String name){
System.out.println("===>test"+id+":"+name);
return "/WEB-INF/show.jsp";
}
@RequestMapping("/test01/{id}/{name}")
public String test01(@PathVariable("id") int id,
@PathVariable("name") String name){
System.out.println("===>test01"+id+":"+name);
return "/WEB-INF/show.jsp";
}
}
index.jsp
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
<title>JSP - Hello World</title>
</head>
<body>
<form action="/login" method="post">
用户名:<input type="text" name="uname"/><br/>
密码：<input type="text" name="upasswd"/><br/>
<input type="submit" value="登录"/>
</form>
<a href="/test?id=10&name=tom">测试</a><br/>
<a href="/test01/11/jack">测试-1</a><br/>
</h1>
<br/>
</body>
</html>
