Springboot hibernate-validator 6.x快速校验示例代码
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2022-06-23 10:22:43
目录一、版本信息及maven依赖二、定义实体bean三、测试controller四、hibernate-validator全局异常处理五、hibernate-validator快速校验一、版本信息及m...
一、版本信息及maven依赖
hibernate-validator 7.x版本有问题,暂时以6.2.1.final为例,6.2.1.final版本解决了log4j版本的漏洞
<properties> <!-- jdk版本 --> <java.version>1.8</java.version> <!-- 构建时编码 --> <project.build.sourceencoding>utf-8</project.build.sourceencoding> <!-- 输出时编码 --> <project.reporting.outputencoding>utf-8</project.reporting.outputencoding> <hutool.version>5.7.16</hutool.version> <hibernate-validator.version>6.2.1.final</hibernate-validator.version> </properties>
记得引入:spring-boot-starter-validation
<dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-validation</artifactid> </dependency> <dependency> <groupid>org.hibernate.validator</groupid> <artifactid>hibernate-validator</artifactid> </dependency> <dependency> <groupid>cn.hutool</groupid> <artifactid>hutool-all</artifactid> <version>${hutool.version}</version> </dependency>
二、定义实体bean
import javax.validation.constraints.email; import javax.validation.constraints.max; import javax.validation.constraints.min; import javax.validation.constraints.notblank; import org.hibernate.validator.constraints.length; public class user { private integer id; @min(18) @max(200) private integer age; @notblank(message = "姓名不能为空") @length(min = 2, max = 6, message = "长度必须在{min}和{max}个字符之间") private string name; @notblank(message = "电子邮箱不能为空") @email(message = "电子邮箱格式不正确") private string email; public integer getid() { return id; } public void setid(integer id) { this.id = id; } public integer getage() { return age; } public void setage(integer age) { this.age = age; } public string getname() { return name; } public void setname(string name) { this.name = name; } public string getemail() { return email; } public void setemail(string email) { this.email = email; } @override public string tostring() { return "user [id=" + id + ", age=" + age + ", name=" + name + ", email=" + email + "]"; } }
三、测试controller
需要在类上面加上注解:@validated
import javax.validation.valid; import javax.validation.constraints.notnull; import org.springframework.validation.annotation.validated; import org.springframework.web.bind.annotation.requestmapping; import org.springframework.web.bind.annotation.restcontroller; @restcontroller @validated public class usercontroller { @requestmapping("/get") public user get(@notnull(message = "id不能为空") integer id, @notnull(message = "姓名不能为空") string name) { user user = new user(); user.setname("lisi"); user.setid(id); return user; } @requestmapping("/save") public user get(@valid user user) { return user; } }
四、hibernate-validator全局异常处理
import java.util.list; import java.util.set; import javax.servlet.http.httpservletrequest; import javax.servlet.http.httpservletresponse; import javax.validation.constraintviolation; import javax.validation.constraintviolationexception; import org.springframework.http.httpstatus; import org.springframework.validation.bindexception; import org.springframework.validation.fielderror; import org.springframework.web.bind.methodargumentnotvalidexception; import org.springframework.web.bind.annotation.controlleradvice; import org.springframework.web.bind.annotation.exceptionhandler; import org.springframework.web.bind.annotation.responsebody; @controlleradvice public class globalexception { public static final string delim = ","; @exceptionhandler(exception.class) @responsebody public string exceptionhandler(httpservletrequest request, httpservletresponse response, exception e) { if(e instanceof constraintviolationexception) { //@requestparam上参数validate失败后抛出的异常 constraintviolationexception cve = (constraintviolationexception) e; set<constraintviolation<?>> violations = cve.getconstraintviolations(); stringbuffer sb = new stringbuffer(""); for (constraintviolation<?> constraintviolation : violations) { sb.append(constraintviolation.getmessage()).append(delim); } if(sb.indexof(delim) > -1) { sb.deletecharat(sb.length() - 1); } system.out.println("constraintviolationexception sb="+sb); response.setstatus(httpstatus.bad_request.value()); return sb.tostring(); }else if(e instanceof bindexception) { //@requestparam上实体对象validate失败后抛出的异常 bindexception be = (bindexception) e; system.out.println("be.getmessage()="+be.getmessage()); list<fielderror> fielderrors = be.getbindingresult().getfielderrors(); stringbuffer sb = new stringbuffer(""); for (fielderror fielderror : fielderrors) { sb.append(fielderror.getdefaultmessage()).append(delim); //system.out.println("fielderror.getdefaultmessage() =" + fielderror.getdefaultmessage()); } if(sb.indexof(delim) > -1) { sb.deletecharat(sb.length() - 1); } system.out.println("bindexception sb="+sb); response.setstatus(httpstatus.bad_request.value()); return sb.tostring(); }else if(e instanceof methodargumentnotvalidexception) { //@requestbody上validate失败后抛出的异常 methodargumentnotvalidexception mave = (methodargumentnotvalidexception) e; system.out.println("mave.getmessage() = " + mave.getmessage()); list<fielderror> fielderrors = mave.getbindingresult().getfielderrors(); stringbuffer sb = new stringbuffer(""); for (fielderror fielderror : fielderrors) { sb.append(fielderror.getdefaultmessage()).append(delim); //system.out.println("fielderror.getdefaultmessage() =" + fielderror.getdefaultmessage()); } if(sb.indexof(delim) > -1) { sb.deletecharat(sb.length() - 1); } system.out.println("methodargumentnotvalidexception sb="+sb); response.setstatus(httpstatus.bad_request.value()); return sb.tostring(); } return "系统异常"; } }
五、hibernate-validator快速校验
hibernate-validator默认会全部校验后再返回所有错误结果,为了让hibernate-validator检查到第一个错误马上返回结果,需要配置快速校验
import javax.validation.validation; import javax.validation.validator; import javax.validation.validatorfactory; import org.hibernate.validator.hibernatevalidator; import org.springframework.boot.autoconfigure.condition.conditionalonmissingbean; import org.springframework.context.annotation.bean; import org.springframework.context.annotation.configuration; import org.springframework.validation.beanvalidation.methodvalidationpostprocessor; @configuration public class validatorconfiguration { /** * 快速返回校验器 * @return */ @bean @conditionalonmissingbean(value = validator.class) public validator validator() { //hibernate-validator 6.x没问题,7.x有问题 validatorfactory validatorfactory = validation.byprovider(hibernatevalidator.class) .configure() .failfast(true) //.addproperty("hibernate.validator.fail_fast", "true") .buildvalidatorfactory(); return validatorfactory.getvalidator(); } /** * 设置快速校验,返回方法校验处理器 * @return */ @bean @conditionalonmissingbean(value = methodvalidationpostprocessor.class) public methodvalidationpostprocessor methodvalidationpostprocessor() { methodvalidationpostprocessor postprocessor = new methodvalidationpostprocessor(); postprocessor.setvalidator(validator()); return postprocessor; } }
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