RequestParam來對映請求引數
        
       
 

      

       
        
       
       
        
          required表示是否必須,預設為
         true
        
       
      

       
        
       
       
        
          defaultValue請求引數的預設值
        
       
     
    

     

      

       
        
       
       
        
         @RequestMapping
 
(value = 
         "/testRequestParam")
        
       
      

       
        
       
       
            
         public String testRequestParam(@RequestParam(value="username")String un,@RequestParam(value = "age",required = false,defaultValue = "0") int age){
        
       
      

       
        
       
       
        
                 System.out.println(
         "testRequestParam,username:"
 
+un+
         ",age,"+age);
        
       
      

       
        
       
       
                
         return 
         "success";
        
       
      

       
        
       
       
        
             }