@RequestParam注解的基本用法

全栈程序员-站长 • 2025年8月8日上午8:15 • 未分类 • 阅读 5

在处理方法入参处使用@RequestParam可以把请求参数传递给请求方法。

value值即请求参数的参数名；
required该参数是否必须。默认为true；
defaultValue请求参数的默认值。

 
  
   
    
     
    
    
     
     @RequestMapping(value = 
     "/testRequestParam") 
     
    
   
    
     
    
    
     
     public String testRequestParam(@RequestParam(value = "username") String username, 
     
    
   
    
     
    
    
     
      @RequestParam(value = "age", required = false, defaultValue = "0") int age) { 
     
    
   
    
     
    
    
     
     
    
   
    
     
    
    
    
      System.out.println( 
     "testRequestParam, username: " + username + 
     " , age: " + age); 
     
    
   
    
     
    
    
     
     return SUCCESS; 
     
    
   
    
     
    
    
    
      }

<a href=”testRequestParam?username=atguigu&age=11″>testRequestParam</a>

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