Spring boot整合JPA异常冲突:javax.persistence.spi.PersistenceUnitInfo.getValidationMode()

 

异常:

An attempt was made to call the method javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode; but it does not exist. Its class, javax.persistence.spi.PersistenceUnitInfo, is available from the following locations:

jar:file:/d:/Maven/repository/javax/persistence/persistence-api/1.0/persistence-api-1.0.jar!/javax/persistence/spi/PersistenceUnitInfo.class
jar:file:/d:/Maven/repository/javax/persistence/javax.persistence-api/2.2/javax.persistence-api-2.2.jar!/javax/persistence/spi/PersistenceUnitInfo.class

It was loaded from the following location:

file:/d:/Maven/repository/javax/persistence/persistence-api/1.0/persistence-api-1.0.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of javax.persistence.spi.PersistenceUnitInfo

今天在搭建springboot(2.1.0.RELEASE)+spring data+jpa+maven时按照书上的说法进行配置,结果就报了这个错误。后来经过网上查询资料和自己一步一步尝试,发现原来是我在pom.xml文件中配置了tk.mybatis造成的(我先是搭建了springboot+mybatis+maven的项目,后来在此基础上进行修改,故pom.xml文件中的依赖没有删除掉),因为tk.mybatis会自动引用依赖引入persistence-api-1.0.jar包,而persistence-api-1.0.jar的PersistenceUnitInfo类中并没有getValidationMode()方法,而在springboot(2.1.0.RELEASE)中自动引入的依赖persistence-api-2.2.jar包的PersistenceUnitInfo类则有实现getValidationMode()方法。此时两个类冲突了,导致报了以下的错误。

1、解决方法就是在tk.mybatis中排除掉persistence-api-1.0.jar的自动依赖,如下:

     

 
            tk.mybatis
            mapper-spring-boot-starter
            1.1.1
            
                
                    javax.persistence
                    persistence-api
                
            
        

2、但是如果你使用到了这个persistence-api-1.0.jar包中的方法和注解,那就不能排除掉

Spring boot整合JPA异常冲突:javax.persistence.spi.PersistenceUnitInfo.getValidationMode()_第1张图片

这时候还有另一种解决方案:

在Spring boot整合JPA的时候,添加的依赖

 
            org.springframework.boot
            spring-boot-starter-data-jpa
        

将依赖改为


            org.springframework.data
            spring-data-jpa
            2.1.5.RELEASE
        

正常解决!

但是此方法原理尚不清楚

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