@The difference between requestparam and @pathvariable annotations

from :

@RequestParam,@PathVariable The difference between the two notes

The following is about @RequestParam,@PathVariable Differences between the three annotations , As shown below :

@RequestParam @PathVariable The function of annotation :  For from request To receive the request , Both can receive parameters  @RequestParam @PathVariable The difference between annotations : @RequestParam  It's from request Take it inside  @PathVariable  Is from a URI Fill in the template  

example :
@RequestParam Sample sharing

 http://localhost:8080/springmvc/test/888?param1=999¶m2=666
 Use the above URL Get parameter information , As shown below :

public String getInfo(
        @RequestParam(value="param1", required=true) String param1,
        @RequestParam(value="param2", required=false) String param2){
        //
}

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@RequestParam  The following four parameters are supported 
    defaultValue:  If the request does not carry this parameter , Or the parameter is empty , Then the default value is enabled 
    name: Bind the name of this parameter , Want to follow URL It's the same as above 
    required: Is this parameter required 
    value: Follow name The same thing , yes name An alias for property 

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example :
@PathVariable

http://localhost:8080/springmvc/test/888?param1=999¶m2=666 
 
@RequestMapping("/test/{id}")
    public String getInfo(@PathVariable(value="id") String id,
    @RequestParam(value="param1", required=true) String param1,
    @RequestParam(value="param2", required=false) String param2){
     //id The value of is 888
}