• 具体错误

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    a bean named 'entityManagerFactory' that could not be found

  • 原因：maven中依赖导入的包可能和其他jar包冲突

  • 解决方法：

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    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
    <version>RELEASE</version>
    <scope>compile</scope>
    </dependency>

    把上述version一栏去掉，变为

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    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
    <scope>compile</scope>
    </dependency>