@RequestMapping(value="/api/test/url/{param1}/{param2}",method = RequestMethod.GET)
    @ResponseBody
    public ResponseEntity<String> redCodeShareMapping(
            @PathVariable(value="param1") String param1, 
            @PathVariable(value="param2") String param2){
             // 逻辑处理
            return new ResponseEntity<String>("no exist", HttpStatus.NOT_FOUND);
    }