@ApiOperation(value = "查询学生信息")
    @GetMapping(value = "/select/student")
    @ApiImplicitParams({
            @ApiImplicitParam(name="userName",value="学生姓名",dataType="string", paramType = "query",example="Tom"),
            @ApiImplicitParam(name="age",value="年龄",dataType="int", paramType = "query")})
    public CommonResult selectStudent(
            @ApiParam(name="userName",value = "学生姓名") String userName,
            @ApiParam(name="age",value = "年龄") Integer age) {
        List<Student> list;
        try {
//            StudentExample studentExample = new StudentExample();
//            StudentExample.Criteria criteria = studentExample.createCriteria();
//            criteria.andUserNameEqualTo(userName);
//            criteria.andAgeEqualTo(age);
//            list = studentService.selectByExample(studentExample);
            list = studentService.selectAll();
        } catch (Exception e) {
            System.out.println(e);
            return CommonUtil.buildResponse(ResultCode.SYSTEM_ERROR, ResultCode.SYSTEM_ERROR_MSG);
        }
        JSONObject result = new JSONObject();
        result.put("students", list);
        return CommonUtil.buildResponse(ResultCode.SUCCESS, ResultCode.SUCCESS_MSG,result);
    }

    @ApiOperation("查询学生信息")
    @ApiResponses(@ApiResponse(code = ResultCode.PARAM_ERROR, message = ResultCode.PARAM_ERROR_MSG))
    @ApiImplicitParams({@ApiImplicitParam(name = "userName", value = "学生姓名", required = true),
            @ApiImplicitParam(name = "age", value = "年龄", required = false),
            @ApiImplicitParam(name = "phone", value = "手机号码", required = false)}
    )
    @GetMapping(value = "/select/student2")
    public CommonResult selectStudent2(@RequestHeader(value = "userName", required = true) String userName,
                                 @RequestHeader(value = "age", required = false) String age,
                                 @RequestHeader(value = "phone", required = false) String phone){
        List<Student> list;
        try {
            StringBuilder sb = new StringBuilder();
            sb.append("userName:" + userName);
            sb.append("-");
            sb.append("age:" + age);
            sb.append("-");
            sb.append("phone:" + phone);
            System.out.println(sb.toString());
            list = studentService.selectAll();
        } catch (Exception e) {
            System.out.println(e);
            return CommonUtil.buildResponse(ResultCode.SYSTEM_ERROR, ResultCode.SYSTEM_ERROR_MSG);
        }
        JSONObject result = new JSONObject();
        result.put("students", list);
        return CommonUtil.buildResponse(ResultCode.SUCCESS, ResultCode.SUCCESS_MSG,result);
    }