Springboot hibernate

目录

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 ur {     private integer id;    @min(18)    @max(200)    private integer age;        @notblank(message = "姓名不能为空")    @length(min = 2南盘江, 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 tid(integer id) {        this.id = id;    }   保护环境小建议十条 public integer getage() {        return age;    }    public void tage(integer age) {        this.age = age;    }    public string getname() {        return name;    }    public void tname(string name) {        this.name = name;    }    public string getemail() {        return email;    }    public void temail(string email) {        this.email = email;    }    @override    public string tostring() {        return "ur [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@validatedpublic class urcontroller {     @requestmapping("/get")    public ur get(@notnull(message = "id不能为空") integer id,             @notnull(message = "姓名不能为空") string name) {        ur ur = new ur();        ur.tname("lisi");        ur.tid(id);        return ur;    }            @requestmapping("/save")    public ur get(@valid ur ur) {        return ur;    }    }

四、hibernate-va经纬度怎么看lidator全局异常处理

import java.util.list;import java.util.t; import javax.rvlet.http.httprvletrequest;import javax.rvlet.http.httprvletrespon;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;imp导游工资ort org.springframework.web.bind.annotation.exceptionhandler;import org.springframework.web.bind.annotation.responbody; @controlleradvicepublic class globalexception {        public static final string delim = "，";     @exceptionhandler(exception.class)    @responbody    public string exceptionhandler(httprvletrequest request, httprvletrespon respon,             exception e) {                        if(e instanceof constraintviolationexception) {            //@requestparam上参数validate失败后抛出的异常                        constraintviolationexception cve = (constraintviolationexception) e;             t<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);                     bus的复数   respon.tstatus(httpstatus.bad_request.value());            return sb.tostring();                    }el 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);            respon.tstatus(httpstatus.bad_request.value());            return sb.tostring();                                }el 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);            respon.tstatus(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; @configurationpublic 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.tvalidator(validator());        return postprocessor;    }    }

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