使用注解对controller接口入参进行常用的校验（springboot + hibernate-validator）

源码地址：https://gitee.com/yk001/base.git

将hibernate-validator用于Controller,可以有效的规范api输入
并且在接口联调阶段，将不规范的请求挡在外部，规范调用方的入参。

1，引入包

		
			org.hibernate.validator
			hibernate-validator
			6.1.6.Final
		

2，controller

package com.yukang.base.controller;


import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.validation.constraints.Max;


/**
 * Function: Hibernate-Validator使用demo. 

 * Date:     2020/12/13 3:29 下午

 *
 * @author yukang
 */
@RestController
@Validated
public class ValidatorController {

    @GetMapping("/entity")
    public String getEntity(
            @Max(10) @RequestParam(name="p1") Integer p1,
            @Max(10) @RequestParam(name="p2") Integer p2,
            @Max(10) @RequestParam(name="p3")  Integer p3) {
        return "success";
    }

}

3，添加统一的异常处理

package com.yukang.base.config;

import com.yukang.base.common.CommonResultCode;
import com.yukang.base.common.GeneralResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletResponse;


/**
 * Function: GlobalExcept. 

 * Date:     11/13/18 5:20 PM

 *
 * @see
 * @since JDK 1.8
 */
@Slf4j
@ControllerAdvice("com.yukang.base.controller")
@ResponseBody
public class GlobalExceptionHandler {

    @ExceptionHandler(Exception.class)
    public GeneralResult otherExceptionHandler(HttpServletResponse response, Exception ex) {
        response.setStatus(500);
        GeneralResult tempResult = new GeneralResult();
        tempResult.setCode(CommonResultCode.OPERATION_FAILED_UNKOWN);
        tempResult.setDescription(ex.getMessage());
        return tempResult;
    }

}

4，验证

curl -X GET "http://localhost:9001/entity?p1=15&p2=15&p3=15" -H "accept: */*"

{
  "code": 101,
  "data": null,
  "description": "getEntity.p1: 最大不能超过10, getEntity.p2: 最大不能超过10, getEntity.p3: 最大不能超过10"
}