SpringBoot使用validation做参数校验说明

< dependency >

             < groupId >org.hibernate.validator</ groupId >

             < artifactId >hibernate-validator</ artifactId >

             < version >6.0.2.Final</ version >

         </ dependency >

< dependency >

             < groupId >org.springframework.boot</ groupId >

             < artifactId >spring-boot-starter-validation</ artifactId >

             < version >1.4.0.RELEASE</ version >

         </ dependency >

< dependency >

             < groupId >org.springframework.boot</ groupId >

             < artifactId >spring-boot-starter-web</ artifactId >

         </ dependency >

import org.hibernate.validator.HibernateValidator;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.validation.beanvalidation.MethodValidationPostProcessor;

import org.springframework.validation.beanvalidation.SpringValidatorAdapter;

import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import javax.validation.Validation;

import javax.validation.Validator;

import javax.validation.ValidatorFactory;

/**

  * hibernate参数验证配置

  */

@Configuration

public class ValidatorConfig extends WebMvcConfigurerAdapter {

     @Bean

     public Validator validator() {

         ValidatorFactory validatorFactory = Validation.byProvider(HibernateValidator. class )

                 .configure()

                 // 将fail_fast设置为true即可，如果想验证全部，则设置为false或者取消配置即可

                 .failFast( true )

//                .addProperty("hibernate.validator.fail_fast", "true")

                 .buildValidatorFactory();

         return validatorFactory.getValidator();

     }

     /**

      * requestParam方式的校验

      * @return

      */

     @Bean

     public MethodValidationPostProcessor methodValidationPostProcessor() {

         MethodValidationPostProcessor methodValidationPostProcessor = new MethodValidationPostProcessor();

         methodValidationPostProcessor.setValidator(validator());

         return methodValidationPostProcessor;

     }

     @Override

     public org.springframework.validation.Validator getValidator() {

         return new SpringValidatorAdapter(validator());

     }

}

/**

      * hibernate-valid实体类形式接受参数验证失败

      * @param ex

      * @return

      */

     @ExceptionHandler (BindException. class )

     @ResponseBody

     public WebResult validationErrorHandler(BindException ex) {

         List<String> collect = ex.getBindingResult().getAllErrors()

                 .stream()

                 .map(ObjectError::getDefaultMessage)

                 .collect(Collectors.toList());

         return new WebResult(Errors.INCORRECT_PARAM_FORMAT.getError(), StringUtils.join(collect, ";" ));

     }

     /**

      * hibernate-valid实体类形式接受参数验证失败

      * @param ex

      * @return

      */

     @ExceptionHandler (MethodArgumentNotValidException. class )

     @ResponseBody

     public WebResult validationErrorHandler(MethodArgumentNotValidException ex) {

         List<String> collect = ex.getBindingResult().getAllErrors()

                 .stream()

                 .map(ObjectError::getDefaultMessage)

                 .collect(Collectors.toList());

         return new WebResult(Errors.INCORRECT_PARAM_FORMAT.getError(), StringUtils.join(collect, ";" ));

     }

     /**

      * RequestParam方式参数校验

      * @param ex

      * @return

      */

     @ExceptionHandler (ConstraintViolationException. class )

     @ResponseBody

     public WebResult validationErrorHandler(ConstraintViolationException ex) {

         List<String> errorInformation = ex.getConstraintViolations()

                 .stream()

                 .map(ConstraintViolation::getMessage)

                 .collect(Collectors.toList());

         return new WebResult(Errors.INCORRECT_PARAM_FORMAT.getError(),StringUtils.join(errorInformation, ";" ));

     }