为什么我得到“找不到的'entityManagerFactory'”。答案

【问题标题】：Why I am getting "'entityManagerFactory' that could not be found."为什么我得到“找不到的'entityManagerFactory'”。
【发布时间】：2019-07-09 12:22:23
【问题描述】：

我正在尝试升级我的应用程序，但我得到了 “一个组件需要一个找不到的 'javax.persistence.EntityManagerFactory' 类型的 bean。”

我已经尝试了其他问题中给出的解决方案。但它们都不适合我。

** 存储库**

@Repository
public interface  UserRepository  extends JpaRepository< RegistrationModel, Long>
{

}

** Controller.java**

     @RestController
     @RequestMapping("bibliophile")
     public class RegistrationController {

        RegistrationController() {

    }


      @Autowired    
     UserRepository user;

    @RequestMapping(value = "registration", method = RequestMethod.POST)
    public String registration( @RequestBody  RegistrationModel request) {
        // request.getURI();
        user.save(request);
        return "Hello I am working";
    }

}

SpringApplication

@SpringBootApplication
@ComponentScan(value="com.ajtas.bib")
@EnableJpaRepositories(basePackageClasses = UserRepository.class) 
public class BibliophilerApplication {

    public static void main(String[] args) {
        SpringApplication.run(BibliophilerApplication.class, args);
    }
}

** Pom.xml**

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>


    <groupId>com.company.ajtas</groupId>
    <artifactId>udemy-spring-tutorial</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>bibliophiler</name>
    <description>Bibliophiler</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>

     <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-devtools</artifactId>
</dependency>


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


<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <!--<scope>provided</scope>-->
</dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

【问题讨论】：

你能分享你的 pom.xml 文件吗？
或 build.gradle
@Shahzeb 我已经添加了 pom.xml。我认为所有依赖项都已经到位。

标签： java spring-boot spring-data-jpa entitymanager

【解决方案1】：

连同 pom.xml 中的 hibernate 条目，尝试在 spring boot application.properties 文件中添加 hibernate 连接属性

【讨论】：