SpringMVC_RequestMapping_PathVariable 注解

最新推荐文章于 2025-04-27 08:30:00 发布

原创最新推荐文章于 2025-04-27 08:30:00 发布 · 234 阅读

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SpringMVCTest.java

package com.wxh.springmvc.handlers;

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;

@RequestMapping("/springmvc")
@Controller
public class SpringMVCTest {

	private static final String SUCCESS = "success";
	/**
	 * @PathVariable 可以来映射URL中的占位符到目标方法的参数中。
	 * @param id
	 * @return
	 */
	@RequestMapping("/testPathVariable/{id}")
	public String testPathVariable(@PathVariable("id") Integer id){
		System.out.println("testPathVariable: "+ id);
		return SUCCESS;
	}
	
	
	@RequestMapping("/testAntPath/*/abc")
	public String testAndPath(){
		System.out.println("testAntPath");
		return SUCCESS;
	}
	
	/**
	 * 了解：可以使用params和 headers来更加精确的映射请求，params 和 headers支持简单的表达式
	 * @return
	 */	
	@RequestMapping(value="testParamsAndHeaders",
			params={"username","age!=10"}, headers={"Accept-Language=en-US,zh;q=0.8"})
	public String testParamsAndHeaders(){
		System.out.println("testParamsAndHeaders");
		return SUCCESS;
	}
	
	
	/**
	 * 常用：使用method 属性来指定请求方式  
	 * @return
	 */
	
	@RequestMapping(value="/testMethod",method=RequestMethod.POST)
	public String testMethod(){
		System.err.println("testMethod");
		return SUCCESS;
	}
	
	/**
	 * 1.@RequestMapping 除了修饰方法，还可来修饰类
	 * 2.
	 * 1）.类定义处：提供初步的请求映射信息，相对于web应用的根目录
	 * 2）.方法处：提供进一步的细分映射信息。
	 * 相对于类定义处的url。若类定义处未标注@RequestMapping。则方法处标记的url相对于web应用的根目录。
	 * @return
	 */
	
	@RequestMapping("/testRequestMapping")
	public String testRequestMapping(){
		System.out.println("testRequestMapping");
		return SUCCESS;
	}
	
}

index.jsp

<%@ 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>Insert title here</title>
</head>
<body>
	
	<a href="springmvc/testPathVariable/1">Test PathVariable</a>
	<br><br>	
	
	<a href="springmvc/testAntPath/aa/abc">Test AntPath</a>
	<br><br>
	
	<a href="springmvc/testParamsAndHeaders?username=wxh&age=10">Test TestParamsAndHeaders</a>
	<br><br>

	<!--post请求-->
	<form action="springmvc/testMethod" method="post">
		<input type="submit" value="submit">
	</form>

	<!-- get请求 -->
	<br><br>
	<a href="springmvc/testMethod">Test Method</a>
	
	<br><br>
	<a href="springmvc/testRequestMapping">Test RequestMapping</a>
	
	<br><br>
	<a href="helloworld">Hello world</a>

</body>
</html>

web.xml 、springDispatcherServlet-servlet.xml、success.jsp参见博客：
https://blog.youkuaiyun.com/hoho_12/article/details/79779624