04-springmvc_requestmapping_ Request Parameters & Request Headers

1 params and headers support for simple expressions

• PARAM1: Indicates that the request must contain a request parameter named param1
• !PARAM1: Indicates that the request cannot contain a request parameter named param1
• Param1!=value1: Indicates that the request contains a parameter named param1, but its value cannot be value1
• {"Param1=value1", param2}: The request must contain two request parameters named Param1 and param2, and the value of the param1 parameter must be value1

2 Testing the params2.1 controller class

  
 

   
  

  
@RequestMapping(value="/testParams",params={"username","age!=10"})
   
  

  
public String testParams(){
   
  

  
System.out.println("testParams");
   
  

  
return "success";
   
  

  
}
  
 

2.2 HTML

 
   
  

  
    
   
 <a href="springmvc/testParams?username=imentor&age=10">测试参数</a>
 
   
  

Does not return to the success interface because the age=103 test headers

  
 

   
  

  
@RequestMapping(value="/testHeaders",headers={"zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3"})
   
  

  
public String testHeaders(){
   
  

  
System.out.println("testParams");
   
  

  
return "success";
   
  

  
}
  
 

Headers value, which can be obtained by firebug

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04-springmvc_requestmapping_ Request Parameters & Request Headers