@ApiOperation(value = "数独", notes = "数独游戏模型获取")
    @ApiImplicitParam(name = "difficulty"
            , value = "难度级别, easy(简单)、normal(普通)、hard(困难)、veryhard(非常困难); 默认easy"
            , paramType = "query"  //参数位置说明
            , defaultValue = "easy" //默认值
            ,required = false
            //,example = "easy(简单)、normal(普通)、hard(困难)、veryhard(非常困难); 默认easy"
    )
    @GetMapping(value = {"/getSudoku/dif"})
    public Object getSudoku(@RequestParam(required = false)String difficulty, HttpServletRequest req) {
        log.info("转发链接:{}", URL + difficulty);
        log.info("请求地址:[{}]",req.getRequestURL().toString());
        log.info("请求参数:[{}]",req.getQueryString());
        log.info("请求方式:[{}]",req.getMethod());
        return restTemplate.getForObject(URL + difficulty, Object.class);
    }
    

2021-12-14 23:42:10.571  INFO 27812 --- [nio-8080-exec-1] com.example.controller.HttpController    : 请求地址:[http://localhost:8080/getSudoku/dif]
2021-12-14 23:42:10.571  INFO 27812 --- [nio-8080-exec-1] com.example.controller.HttpController    : 请求参数:[difficulty=easy]
2021-12-14 23:42:10.571  INFO 27812 --- [nio-8080-exec-1] com.example.controller.HttpController    : 请求方式:[GET]