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RequestMapping介绍

發(fā)布時間：2024/4/13 编程问答 25 豆豆

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@RequestMapping

看看注解源碼，在那幾個位置

就近？

協(xié)作？

常用方法：method=RequestMethod.GET/method=RequestMethod.POST

RequestMapping中限定請求參數(shù)映射：params

@RequestMapping(value="/testParams",params={"email","tel!=110"},method=RequestMethod.GET)public String testParams(){System.out.println("=====testParams");return "ok";}

RequestMapping中限定請求頭映射：headers

@RequestMapping(value="/testHeaders",headers={"Host=localhost:8081"},method=RequestMethod.GET)public String testHeaders(){ System.out.println("=====testHeaders");return "ok";}

URL路徑映射

HTTP協(xié)議查看

普通URL映射

Ant風(fēng)格URL映射

@RequestMapping(value="/testAntStyle**/**/q",method=RequestMethod.GET) @RequestMapping(value="/testAntStyle??",method=RequestMethod.GET) @RequestMapping(value="/testAntStyle*",method=RequestMethod.GET)public String testAntStyle(){System.out.println("=====testAntStyle");return "ok";}

? ?匹配一個字符

* ?匹配零個或多個字符

** 匹配零個或多個路徑

@PathVariable占位符URL映射

@RequestMapping(value="/users/{userId}")

@RequestMapping(value=“/users/{userId}/create”)

@RequestMapping(value="/users/{userId}/topics/{topicId}")

@PathVariable可以提取URI模板模式中的{×××}中的×××變量。

<%@ 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>hello:<a href="${pageContext.request.contextPath}/hello">hello</a> <hr> testParams:<a href="${pageContext.request.contextPath}/testParams?age=26&tel=112">testParams</a> <hr> testHeaders:<a href="${pageContext.request.contextPath}/testHeaders">testHeaders</a> <hr> testAntStyle:<a href="${pageContext.request.contextPath}/testAntStylexxxxx">testAntStyle</a> <hr> testPathVariable:<a href="${pageContext.request.contextPath}/testPathVariable/1022">testPathVariable</a> <hr> <fieldset> REST風(fēng)格:<br>POST:<br><form action="${pageContext.request.contextPath}/order" method="post"><input type="submit" value="post_commit"></form>DELETE:<br><form action="${pageContext.request.contextPath}/order/1022" method="post"><input type="hidden" name="_method" value="DELETE"><input type="submit" value="delete_commit"></form> PUT:<br><form action="${pageContext.request.contextPath}/order/1022" method="post"><input type="hidden" name="_method" value="PUT"><input type="submit" value="put_commit"></form><br>GET:<a href="${pageContext.request.contextPath}/order/1022">testGet</a> </fieldset> <hr> testRequestParam:<a href="${pageContext.request.contextPath}/testRequestParam?age=26&roleId=11&roleId=12">testRequestParam</a> <hr> testRequestHeader:<a href="${pageContext.request.contextPath}/testRequestHeader">testRequestHeader</a> </html> package com.learn.springmvc.test;import java.io.IOException; import java.io.Writer; import java.util.Map;import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.CookieValue; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestHeader; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.servlet.ModelAndView;import com.learn.springmvc.entities.User;@Controller //@SessionAttributes(value="user") public class Test001 {@RequestMapping(value="/testParams",method=RequestMethod.GET,params={"age","tel!=110"})public String testParams(){System.out.println("-----testParams");return "ok";}@RequestMapping(value="/testHeaders",method=RequestMethod.GET,headers={"Host=localhost:8080"})public String testHeaders(){System.out.println("-----testHeaders");return "ok";}@RequestMapping(value="/testAntStyle*",method=RequestMethod.GET)public String testAntStyle(){System.out.println("-----testAntStyle");return "ok";} //@RequestMapping(value="/testPathVariable/{musicId}",method=RequestMethod.GET)public String testPathVariable(@PathVariable("musicId") String musicId){System.out.println("-----testPathVariable musicId: "+musicId);return "ok";}@RequestMapping(value="/order",method=RequestMethod.POST)public String testPost(){System.out.println("-----testPost");return "ok";}@RequestMapping(value="/order/{uuid}",method=RequestMethod.DELETE)public String testDelete(@PathVariable("uuid") String uuid){System.out.println("-----testDelete uuid: "+uuid);return "ok";}@RequestMapping(value="/order/{uuid}",method=RequestMethod.PUT)public String testPut(@PathVariable("uuid") String uuid){System.out.println("-----testPut uuid: "+uuid);return "ok";} @RequestMapping(value="/order/{uuid}",method=RequestMethod.GET)public String testGet(@PathVariable("uuid") String uuid){System.out.println("-----testGet uuid: "+uuid);return "ok";} @RequestMapping(value="/testRequestParam",method=RequestMethod.GET)public String testRequestParam(@RequestParam(value="age",required=false,defaultValue="99") Integer age,@RequestParam("roleId") String[] roleIds){System.out.println("-----testRequestParam age: "+age);for (int i = 0; i < roleIds.length; i++){System.out.println(roleIds[i]);}return "ok";} @RequestMapping(value="/testRequestHeader",method=RequestMethod.GET)public String testRequestHeader(@RequestHeader("Host") String host){System.out.println("-----testRequestHeader host: "+host);return "ok";} }

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RequestMapping