@PostMapping("/ /query")
    public ResultBean blankQuery() {
        ResultBean resultBean = new ResultBean();
        resultBean.setCode(200);
        resultBean.setData("test blank query");
        return resultBean;
    }
test blank query.

@return response body
shenyu-examples/shenyu-examples-http/src/main/java/org/apache/shenyu/examples/http/controller/HttpTestController.java