SpringMvc中的@RequestMapping的用法简介说明

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SpringMvc中的@RequestMapping的用法简介说明

下文笔者讲述RequestMapping的几种用法简介说明，如下所示:

方法上使用RequestMapping

 
@RequestMapping(value="/users")  
public String testFun(){  
  System.out.println("方法被运行！");  
  return "info";  
}  

参数绑定

如:/users?userId=888

@RequestMapping(value="/users")  
public String findUserInfo(  
  @RequestParam("userId") String userId){ 
    System.out.println("userId: " + userId);  
    return "info";  
}  

REST风格的参数

如：/users/88
其中用(@PathVariable接收rest风格的参数 @RequestMapping(value="/users/{userId}") public String findUserInfo(@PathVariable String userId){ System.out.println("Find User with ID: " + userId); return "info"; }

url中同时绑定多个id

@RequestMapping(value="/users/{userId}/employees/{employeeId}")  
public String findEmployee(  
  @PathVariable String userId,  
  @PathVariable String employeeId){
    System.out.println("employeeId: " + employeeId +   
      " user: " + userId);  
    return "info"; 
}  

支持正则表达式

@RequestMapping(value="/{textualPart:[a-z-]+}.{numericPart:[\\d]+}")  
public String regularExpression(  
  @PathVariable String textualPart,  
  @PathVariable String numericPart){ 
    System.out.println("Textual part: " + textualPart +   
      ", numeric part: " + numericPart);  
    return "info";  
}