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业务背景：上传excel文件进行基础数据校验，然而东西太多写着写着就...自然成了测试的KPI了

解决思路：使用现有的注解处理，原理使用@validate注解原理

直接上干货，一行代码搞定校验：

ValidateUtils.validate(List.of(fieldReq));

目录

工具类

测试实体

---

工具类

import jakarta.annotation.Resource;
import jakarta.validation.ConstraintViolation;
import jakarta.validation.Validator;
import org.springframework.stereotype.Component;import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;/*** date:2025/4/23 22:56* author: [e-mail]*/
@Component
public class ValidateUtils {public static final String TIP = "第%s行数据异常,%s,请检查";//注意jdk版本不同引入的包不同//import jakarta.validation.Validator;//import javax.validation.Validator;private static Validator validator;public Validator getValidator() {return validator;}@Resourcepublic void setValidator(Validator validator) {ValidateUtils.validator = validator;}//默认从第1行开始 index=1public static <T> void validate(List<T> list) {if (Objects.isNull(list) || list.isEmpty()) {return;}AtomicInteger atomicInteger = new AtomicInteger(0);for (T t : list) {int lineNo = atomicInteger.addAndGet(1);Set<ConstraintViolation<T>> validate = validator.validate(t);if (!validate.isEmpty()) {//可自定义throw new IllegalArgumentException(String.format(TIP,lineNo,validate.iterator().next().getMessage()));}}}//指定起始行号public static <T> void validate(List<T> list,Integer startIndex) {if (Objects.isNull(list) || list.isEmpty()) {return;}if (startIndex==null || startIndex<0) {startIndex = 0;}AtomicInteger atomicInteger = new AtomicInteger(startIndex);for (T t : list) {int lineNo = atomicInteger.addAndGet(1);Set<ConstraintViolation<T>> validate = validator.validate(t);if (!validate.isEmpty()) {//可自定义throw new IllegalArgumentException(String.format(TIP,lineNo,validate.iterator().next().getMessage()));}}}
}

测试实体

import io.swagger.v3.oas.annotations.media.Schema;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotNull;
import lombok.Data;/*** date:2025/3/16 9:33* author: [e-mail]*/
@Data
@Schema(description = "规则配置添加请求")
public class RuleConfigAddReq {/*** 规则KEY*/@Schema(description = "规则KEY",requiredMode = Schema.RequiredMode.REQUIRED)@NotBlank(message = "规则KEY不能为空")private String ruleKey;/*** 字段名称*/@Schema(description = "字段名称")@NotBlank(message = "字段名称不能为空")private String fieldName;/*** 字段描述*/@Schema(description = "字段描述")@NotBlank(message = "字段描述不能为空")private String fieldDescription;/*** 类名*/@Schema(description = "类名")@NotBlank(message = "类名不能为空")private String className;/*** 类描述*/@Schema(description = "类描述")@NotBlank(message = "类描述不能为空")private String classDescription;/*** 表达式*/@Schema(description = "表达式")@NotBlank(message = "表达式不能为空")private String expression;/*** 顺序*/@Schema(description = "顺序")@NotNull(message = "顺序不能为空")private Integer ruleOrder;/*** 提示信息*/@Schema(description = "提示信息")@NotBlank(message = "提示信息编码不能为空")private String tipCode;/*** 提示信息*/@Schema(description = "提示信息")@NotBlank(message = "提示信息不能为空")private String tipMessage;
}

仿上传之后用easyexcel解析后生成的实体对象进行测试【此处省略上传解析，工具类待后续文章补充】

    @RequestMapping("/validate")public void validate() {RuleConfigAddReq ruleConfigAddReq = new RuleConfigAddReq();ruleConfigAddReq.setRuleKey("ruleKey");ruleConfigAddReq.setFieldName("fieldName");ruleConfigAddReq.setFieldDescription("fieldDescription");ruleConfigAddReq.setClassName("className");ruleConfigAddReq.setClassDescription("classDescription");ruleConfigAddReq.setExpression("expression");ruleConfigAddReq.setRuleOrder(1);FieldReq fieldReq = new FieldReq();//ValidateUtils.validate(List.of(fieldReq));}