1.概述
带占位符的URL是spring3.0新增的功能,该功能在SpringMVC向REST目标挺进发展过程中具有里程碑的意义;
通过@PathVariable可以将URL中占位符参数绑定到控制器处理方法的入参中:URL中的{xxx}占位符可以通过@PathVariable("xxx")绑定到操作方法的入参中;
2.代码
测试类: package com.yk.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"; @RequestMapping("/testPathVariable/{id}") public String testPathVariable(@PathVariable(value=("id")) Integer id){ System.out.println("SpringMVCTest.testPathVariable()"+id); return SUCCESS; } @RequestMapping("/testAntPath/*/abc") public String testAntPath(){ System.out.println("SpringMVCTest.testAntPath()"); return SUCCESS; } /** * 可以使用params和headers来更加精确映射请求,params和headers支持简单的表达式 * @return */ @RequestMapping(value="testParamsAndHeaders",params={"username","age!=10"}/*,headers={"Accept-Language:zh-CN,zh;q=0.9"}*/) public String testParamsAndHeaders(){ System.out.println("SpringMVCTest.testParamsAndHeaders()"); return SUCCESS; } /** * 使用method属性指定请求方式 * @return */ @RequestMapping(value="/testMethod",method=RequestMethod.POST) public String testMethod(){ System.out.println("SpringMVCTest.testMethod()"); return SUCCESS; } @RequestMapping("/testRequestMapping") public String testRequestMapping(){ System.out.println("SpringMVCTest.testRequestMapping()"); // return "success"; 下面会有很多,所以定义一个常量 return SUCCESS; } } index.jsp <a href="springmvc/testPathVariable/1">testPathVariable</a> 结果返回: SpringMVCTest.testPathVariable()1 SpringMVCTest.testPathVariable()100000 SpringMVCTest.testPathVariable()100000 SpringMVCTest.testPathVariable()15555
原文地址:https://www.cnblogs.com/yikuan-919/p/9726593.html
时间: 2024-10-15 04:02:27