标签：tab ble pos factor cto eva turn VID mba
1 hibernate validator 官方文档：https://docs.jboss.org/hibernate/stable/validator/reference/en-US/html_single/
在 springboot 项目中 spring-boot-starter-web 已经包含了 hibernate-validator 可以直接使用。否则需要在 maven 依赖中添加依赖项。
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator-modules</artifactId>
<version>6.0.13.Final</version>
</dependency>
2 对请求的参数进行校验
import lombok.AllArgsConstructor; import lombok.Builder; import lombok.Data; import lombok.NoArgsConstructor; import javax.validation.Valid; import javax.validation.constraints.NotBlank; import javax.validation.constraints.NotEmpty; import javax.validation.constraints.NotNull; import java.util.List; @Data @AllArgsConstructor @NoArgsConstructor @Builder public class RequestParamBase { @NotBlank(message = "name 不能为空") private String name; @NotEmpty(message = "fruits 不能为空") @Valid private List<Fruit> fruits; } import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import javax.validation.constraints.NotBlank; import javax.validation.constraints.NotNull; @AllArgsConstructor @NoArgsConstructor @Data public class Fruit { @NotBlank(message = "color 不能为空") private String color; @NotNull(message = "price 不能为空") private Integer price; }
说明：对于对象级联验证，需要在对象字段上添加 @Valid 标记。
3 在 controller 方法上使用验证
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import javax.validation.Valid; @RequestMapping(value = "/student/1", method = RequestMethod.POST) public Response getStudent(@RequestBody @Valid RequestParamBase paramBase, BindingResult validResult) { if (validResult.hasErrors()) { for(ObjectError error : validResult.getAllErrors()) { System.out.println(error.getDefaultMessage()); } return null; } System.out.println(paramBase); Response result = Response.builder().age(23).name("well").build(); return result; }
此时会发现会对所有字段验证，如果想验证出第一条问题赶快退出，就需要添加配置。
通常按顺序验证到第一个字段不符合验证要求时，就可以直接拒绝请求了。Hibernate Validator有以下两种验证模式：
普通模式(会校验完所有的属性，然后返回所有的验证失败信息)
快速失败返回模式(只要有一个验证失败，则返回)
4 配置快速失败
failFast：true 快速失败返回模式 false 普通模式
ValidatorFactory validatorFactory = Validation.byProvider( HibernateValidator.class )
.configure()
.failFast( true )
.buildValidatorFactory();
Validator validator = validatorFactory.getValidator();
和 （hibernate.validator.fail_fast：true 快速失败返回模式 false 普通模式）
ValidatorFactory validatorFactory = Validation.byProvider( HibernateValidator.class )
.configure()
.addProperty( "hibernate.validator.fail_fast", "true" )
.buildValidatorFactory();
Validator validator = validatorFactory.getValidator();
在 springboot 项目中配置
import org.hibernate.validator.HibernateValidator; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import javax.validation.Validation; import javax.validation.Validator; import javax.validation.ValidatorFactory; @Configuration public class ValidConfig { @Bean public Validator validator() { ValidatorFactory validatorFactory = Validation.byProvider(HibernateValidator.class) .configure() .addProperty("hibernate.validator.fail_fast", "true") .buildValidatorFactory(); Validator validator = validatorFactory.getValidator(); return validator; } }
5 如果在 controller 中有多个入参，可以按照以下方式进行配置
public void test()(@RequestBody @Valid DemoModel demo, BindingResult result,@RequestBody @Valid DemoModel demo2, BindingResult result2)
参考文献：https://www.cnblogs.com/mr-yang-localhost/p/7812038.html
spring 项目中使用 hibernate validator验证输入参数
标签：tab ble pos factor cto eva turn VID mba
原文地址：https://www.cnblogs.com/zhaopengcheng/p/9963996.html
