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link管理  ›  SpringBoot-通用参数校验
http://luoma.pro/Content/Detail?parentId=5&id=965
博学的山寨机
4 月前

参考

SpringBoot-jsr303 参数校验

Unable to create a Configuration, because no Bean Validation provider could be found. Add a provider like Hibernate Validator (RI) to your classpath

方案1

pom.xml 

  1. <dependencies>
  2.     <dependency>
  3.         <groupId>org.springframework.boot</groupId>
  4.         <artifactId>spring-boot-starter-web</artifactId>
  5.     </dependency>
  7.     <dependency>
  8.         <groupId>org.projectlombok</groupId>
  9.         <artifactId>lombok</artifactId>
  10.         <optional>true</optional>
  11.     </dependency>
  12.     <dependency>
  13.         <groupId>cn.hutool</groupId>
  14.         <artifactId>hutool-all</artifactId>
  15.         <version>5.7.5</version>
  16.     </dependency>
  18.     <dependency>
  19.         <groupId>javax.validation</groupId>
  20.         <artifactId>validation-api</artifactId>
  21.         <version>2.0.1.Final</version>
  22.     </dependency>
  23.     <dependency>
  24.         <groupId>org.hibernate.validator</groupId>
  25.         <artifactId>hibernate-validator</artifactId>
  26.         <version>6.0.13.Final</version>
  27.     </dependency>
  28.     <dependency>
  29.         <groupId>org.glassfish</groupId>
  30.         <artifactId>javax.el</artifactId>
  31.         <version>3.0.0</version>
  32.     </dependency>
  33. </dependencies>

测试类- BatchParam 

  1. package com.sharding.demo.DTO;
  3. import cn.hutool.extra.validation.ValidationUtil;
  4. import lombok.Data;
  5. import org.apache.commons.collections4.CollectionUtils;
  7. import javax.validation.ConstraintViolation;
  8. import javax.validation.constraints.NotBlank;
  9. import javax.validation.constraints.NotNull;
  10. import javax.validation.groups.Default;
  11. import java.util.Set;
  12. import java.util.stream.Collectors;
  14. @Data
  15. public class BatchParam {
  16.     @NotNull(message = "天数不能为空")
  17.     private Integer day;
  19.     @NotBlank(message = "来源系统不能为空")
  20.     private String sourceSystem;
  22.     /**
  23.      * 参数合法性校验
  24.      *
  25.      * @return 合法返回验证通过,否则返回错误信息
  26.      */
  27.     public String validParams() {
  28.         Set<ConstraintViolation<BatchParam>> errorSet = ValidationUtil.validate(this, Default.class);
  29.         if (!CollectionUtils.isEmpty(errorSet)) {
  30.             return errorSet.stream().map(ConstraintViolation::getMessage).collect(Collectors.joining(";"));
  31.         }
  33.         return "验证通过";
  34.     }
  36.     public static void main(String[] args) {
  37.         BatchParam batchParam = new BatchParam();
  38.         System.out.println(batchParam.validParams());
  39.         System.out.println("-----------");
  41.         batchParam.setDay(1);
  42.         System.out.println(batchParam.validParams());
  43.         System.out.println("-----------");
  45.         batchParam.setSourceSystem("mysql");
  46.         System.out.println(batchParam.validParams());
  47.     }
  48. }

测试结果 

  1. 11:55:31.129 [main] INFO org.hibernate.validator.internal.util.Version -- HV000001: Hibernate Validator 6.0.13.Final
  2. 来源系统不能为空;天数不能为空
  3. -----------
  4. 来源系统不能为空
  5. -----------
  6. 验证通过

错误-Unable to create a Configuration, because no Bean Validation provider could be found. Add a provider like Hibernate Validator (RI) to your classpath.

一开始只引用了 javax.validation 包 

  1. <dependency>
  2.     <groupId>javax.validation</groupId>
  3.     <artifactId>validation-api</artifactId>
  4.     <version>2.0.1.Final</version>
  5. </dependency>

执行报下面的错误 

  1. Exception in thread "main" java.lang.ExceptionInInitializerError
  2.     at com.sharding.demo.DTO.BatchParam.validParams(BatchParam.java:27)
  3.     at com.sharding.demo.DTO.BatchParam.main(BatchParam.java:37)
  4. Caused by: javax.validation.NoProviderFoundException: Unable to create a Configuration, because no Bean Validation provider could be found. Add a provider like Hibernate Validator (RI) to your classpath.
  5.     at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:291)
  6.     at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:103)
  7.     at cn.hutool.extra.validation.ValidationUtil.<clinit>(ValidationUtil.java:27)
  8.     ... 2 more
  10. 进程已结束，退出代码为 1

加入了下面两个包，执行正常 

  1. <dependency>
  2.     <groupId>org.hibernate.validator</groupId>
  3.     <artifactId>hibernate-validator</artifactId>
  4.     <version>6.0.13.Final</version>
  5. </dependency>
  6. <dependency>
  7.     <groupId>org.glassfish</groupId>
  8.     <artifactId>javax.el</artifactId>
  9.     <version>3.0.0</version>
  10. </dependency>

方案2

校验工具类-ValidationUtils 

  1. package com.sharding.demo.utils;
  3. import org.apache.commons.collections4.CollectionUtils;
  5. import javax.validation.ConstraintViolation;
  6. import javax.validation.Validation;
  7. import javax.validation.Validator;
  8. import java.util.ArrayList;
  9. import java.util.List;
  10. import java.util.Set;
  12. public class ValidationUtils {
  14.     private static final Validator VALIDATOR = Validation.buildDefaultValidatorFactory().getValidator();
  17.     public  static <T> List<String> validate(T  obj){
  18.         List<String>  resultList = new ArrayList<>();
  19.         Set<ConstraintViolation<T>> validateSet = VALIDATOR.validate(obj);
  20.         if(CollectionUtils.isEmpty(validateSet)){
  21.             return  resultList;
  22.         }
  23.         for(ConstraintViolation<T> cs:validateSet){
  24.             resultList.add(cs.getMessage());
  25.         }
  26.         return resultList;
  27.     }
  28. }

测试类-BatchParam 

  1. package com.sharding.demo.DTO;
  3. import cn.hutool.extra.validation.ValidationUtil;
  4. import com.sharding.demo.utils.ValidationUtils;
  5. import lombok.Data;
  6. import org.apache.commons.collections4.CollectionUtils;
  8. import javax.validation.ConstraintViolation;
  9. import javax.validation.constraints.NotBlank;
  10. import javax.validation.constraints.NotNull;
  11. import javax.validation.groups.Default;
  12. import java.util.List;
  13. import java.util.Set;
  14. import java.util.stream.Collectors;
  16. @Data
  17. public class BatchParam {
  18.     @NotNull(message = "天数不能为空")
  19.     private Integer day;
  21.     @NotBlank(message = "来源系统不能为空")
  22.     private String sourceSystem;
  23. }

测试结果 

  1. public static void main(String[] args) {
  2.     BatchParam batchParam = new BatchParam();
  3.     List<String> errorMsg = ValidationUtils.validate(batchParam);
  4.     if (CollectionUtils.isNotEmpty(errorMsg)) {
  5.         System.out.println(errorMsg);
  6.     }
  7.     System.out.println("-----------");
  9.     batchParam.setDay(1);
  10.     errorMsg = ValidationUtils.validate(batchParam);
  11.     if (CollectionUtils.isNotEmpty(errorMsg)) {
  12.         System.out.println(errorMsg);
  13.     }
  14.     System.out.println("-----------");
  16.     batchParam.setSourceSystem("mysql");
  17.     errorMsg = ValidationUtils.validate(batchParam);
  18.     if (CollectionUtils.isNotEmpty(errorMsg)) {
  19.         System.out.println(errorMsg);
  20.     }
  21. }
  1. [来源系统不能为空, 天数不能为空]
  2. -----------
  3. [来源系统不能为空]
  4. -----------
 
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