SpringBoot 基于Hibernate Validator参数校验

jar：org.hibernate hibernate-validator 5.4.1.Final

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1.JSON格式

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（1）实体字段添加注解

@Length(max=16,message="卡号不能超过16位")

private String cardNo;

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（2）controller方法添加@Validated注解

test(@RequestBody @Validated ReqVO reqVO){}；

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（3）需在处理器增强@ControllerAdvice配置MethodArgumentNotValidException异常处理

@ExceptionHandler(MethodArgumentNotValidException.class)

@ResponseBody

public Model handleMethodArgumentNotValidException(MethodArgumentNotValidExceptione){

List errors = e.getBindingResult().getAllErrors();

StringBuffer errorMsg = new StringBuffer();

errors.forEach(x->errorMsg.append(x.getDefaultMessage()).append(";"));

return newModel(ApiBaseErrEnum.getErrCode(),errorMsg.toString());

}

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2.form-data 封装对象接收参数

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（1）实体字段添加注解

@Length(max=16,message="卡号不能超过16位")

private String cardNo;

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（2）controller方法添加@Validated注解

test(@Validated ReqVO reqVO){}；

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（3）需在处理器增强@ControllerAdvice配置BindException异常处理

@ExceptionHandler(BindException.class)

@ResponseBody

public Model handleBindException(BindExceptione){

List errors = e.getBindingResult().getAllErrors();

StringBuffer errorMsg = new StringBuffer();

errors.forEach(x->errorMsg.append(x.getDefaultMessage()).append(";"));

return new Model(ApiBaseErrEnum.getErrCode(),errorMsg.toString());

}

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3. form-data 普通字段接收参数

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（1）校验请求是否包含所需参数，只需于@ControllerAdvice配置MissingServletRequestParameterException异常处理

//接收参数需配@Requestparam

@ExceptionHandler({MissingServletRequestParameterException.class})

@ResponseBody

public Model test(MissingServletRequestParameterExceptionex){

return new Model(ApiBaseErrEnum.getErrCode(),ex.getParameterName());

}

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（2）校验接收参数格式是否正确

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（2.1）首先需要创建MethodValidationPostProcessor

@Bean

public MethodValidationPostProcessor methodValidationPostProcessor(){

return new MethodValidationPostProcessor();

}

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（2.2） 需在处理器增强@ControllerAdvice配置 ConstraintViolationException 异常处理

@ExceptionHandler(ConstraintViolationException.class)

@ResponseBody

public Model handleConstraintViolationException(ConstraintViolationExceptione) {

Set> errors = e.getConstraintViolations();

StringBuffe rerrorMsg = new StringBuffer();

errors.forEach(x->errorMsg.append(x.getMessageTemplate()).append(";"));

return new Model(ApiBaseErrEnum.getErrCode(),errorMsg.toString());

}

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（2.3）controller添加@Validated注解

@RestController

@RequestMapping

@Validated

public class TestController{

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（2.4）controller方法添加所需注解，具体注解请自行查看

public Model test( @Length(min=3,message="最小长度为3") String id ) { }

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随手笔记，如有错误请指出，谢谢！

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