没有找到 EntityManager bean？
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【中文标题】没有找到 EntityManager bean？【英文标题】：EntityManger bean not found? 【发布时间】：2018-05-04 19:35:53 【问题描述】：ConfigServletWebServerApplicationContext ：刷新 org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@769f71a9：启动日期 [Tue Nov 21 15:46:02 IST 2017]；上下文层次的根 2017-11-21 15:46:24.774 INFO 6272 --- [main] o.s.b.w.embedded.tomcat.TomcatWebServer：Tomcat 使用端口初始化：8080 (http) 2017-11-21 15:46:24.922 INFO 6272 --- [main] o.apache.catalina.core.StandardService：启动服务 [Tomcat] 2017-11-21 15:46:24.924 INFO 6272 --- [main] org.apache.catalina.core.StandardEngine：启动 Servlet 引擎：Apache Tomcat/8.5.23 2017-11-21 15:46:25.250 INFO 6272 --- [ost-startStop-1] ocatalina.core.AprLifecycleListener：在 java 上找不到基于 APR 的 Apache Tomcat Native 库，它允许在生产环境中实现最佳性能。 library.path: [C:\Program Files\Java\jdk1.8.0_141\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\ProgramData\Oracle\ Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C: \Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\ Tools\Binn\ManagementStudio\;C:\Windows\system32\config\systemprofile.dnx\bin;C:\Program Files\Microsoft DNX\Dnvm\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\ ;C:\程序文件s (x86)\Windows Kits\8.1\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\;C :\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\PrivateAssemblies\;C:\Program Files\nodejs\;C:\Program Files\Java\jdk1.8.0_141\bin;C:\Users\kaleti \AppData\Local\Microsoft\WindowsApps;C:\Users\kaleti\AppData\Roaming\npm;C:\Users\kaleti\AppData\Local\GitHubDesktop\bin;.] 2017-11-21 15:46:25.628 INFO 6272 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]：初始化 Spring 嵌入式 WebApplicationContext 2017-11-21 15:46:25.629 INFO 6272 --- [ost-startStop-1] os.web.context.ContextLoader：根 WebApplicationContext：初始化在 23087 毫秒内完成 2017-11-21 15:46:25.986 INFO 6272 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean：映射 servlet：'dispatcherServlet' 到 [/] 2017-11-21 15:46:25.986 INFO 6272 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean：映射过滤器：'characterEncodingFilter' 到：[/] 2017-11-21 15:46:25.986 INFO 6272 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean：映射过滤器：'hiddenHttpMethodFilter' 到：[/] 2017-11-21 15:46:25.986 INFO 6272 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean：映射过滤器：“httpPutFormContentFilter”到：[/] 2017-11-21 15:46:25.986 INFO 6272 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean：映射过滤器：'requestContextFilter' 到：[/] 2017-11-21 15:46:26.625 WARN 6272 --- [main] ConfigServletWebServerApplicationContext：上下文初始化期间遇到异常-取消刷新尝试：org.springframework.beans.factory.UnsatisfiedDependencyException：创建名为“statusController”的bean时出错：不满意通过字段“statusService”表示的依赖关系；嵌套异常是 org.springframework.beans.factory.UnsatisfiedDependencyException：创建名称为“statusService”的 bean 时出错：通过字段“repository”表示的依赖关系不满足；嵌套异常是 org.springframework.beans.factory.BeanCreationException：创建名称为“repositoryImpl”的 bean 时出错：设置 bean 时无法创建类型为 [org.springframework.orm.jpa.SharedEntityManagerCreator] 的内部 bean '(inner bean)#340b7ef6'属性“实体管理器”；嵌套异常是 org.springframework.beans.factory.BeanCreationException：创建名称为 '(inner bean)#340b7ef6' 的 bean 时出错：设置构造函数参数时无法解析对 bean 'entityManagerFactory' 的引用；嵌套异常是 org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available 2017-11-21 15:46:26.656 INFO 6272 --- [main] o.apache.catalina.core.StandardService：停止服务 [Tomcat] 2017-11-21 15:46:26.788 INFO 6272 --- [主] ConditionEvaluationReportLoggingListener：
启动 ApplicationContext 时出错。要显示条件报告，请在启用“调试”的情况下重新运行您的应用程序。 2017-11-21 15:46:26.983 错误 6272 --- [主] o.s.b.d.LoggingFailureAnalysisReporter 应用程序启动失败*********************************
说明： com.learning.demo.StatusService 中的字段存储库需要一个名为“entityManagerFactory”的 bean，但无法找到。 行动：
考虑在您的配置中定义一个名为“entityManagerFactory”的 bean。
进程以退出代码 1 结束
我的代码如下
package com.learing.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@SpringBootApplication
public class DemoApplication
public static void main(String[] args)
SpringApplication.run(DemoApplication.class, args);
StatusController 类
package com.learing.demo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@RestController
public class StatusController
@Autowired
private StatusService statusService;
@RequestMapping("/getEmpStatus")
public List<Employee> GetAllEmployeeStatus()
return statusService.GetAllEmpStatus();
@RequestMapping("/getEmpStatus/id")
public Employee GetAllEmployeeStatus(@PathVariable int id)
return statusService.GetEmpStatus(id);
@RequestMapping(method= RequestMethod.POST, value="/getEmpStatus")
public void AddEmployeeStatus(@RequestBody Employee employee)
statusService.AddEmployeeStatus(employee);
@RequestMapping(method = RequestMethod.PUT, value="/getEmpStatus/id")
public void UpdateStatus(@RequestBody Employee employee, @PathVariable int id)
statusService.UpdateStatus(employee,id);
@RequestMapping(method= RequestMethod.DELETE, value="/getEmpStatus/id")
public void UpdateStatus(@PathVariable int id)
statusService.DeleteStatus(id);
状态服务类
package com.learing.demo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
@Service
public class StatusService
@Autowired
public RepositoryImpl repository;
private List<Employee> employees = new ArrayList<>(Arrays.asList(new Employee(1, "NSIN253", "Kalpa", "BHS-Mapping", "Mapping doc Completed"), new Employee(2, "NSIN254", "Fareeda", "BHS-Mapping", "Mapping doc Completed"), new Employee(3, "NSIN252", "KrishnaVeni", "BHS-Mapping", "Mapping doc Completed")));
public List<Employee> GetAllEmpStatus()
return employees;
public Employee GetEmpStatus(int id)
return employees.stream().filter(employee -> employee.getiD() == id).findFirst().get();
public void AddEmployeeStatus(Employee employee)
repository.save(employee);
public void UpdateStatus(Employee employee, int id)
for (int i = 0; i < employees.size(); i++)
Employee emp = employees.get(i);
if (emp.getiD() == id)
employees.set(i, employee);
public void DeleteStatus(int id)
employees.removeIf(emp -> emp.getiD() == id);
RepositoryImpl 类
package com.learing.demo;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface RepositoryImpl extends CrudRepository<Employee,Integer>
应用道具：
spring.datasource.url=jdbc:sqlserver://localhost:1433;databaseName=EmployeeDb
spring.datasource.username=xxxx
spring.datasource.password=xxxxx
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.jpa.show-sql=true
spring.jpa.hibernate.dialect=org.hibernate.dialect.SQLServer2012Dialect
spring.jpa.hibernate.ddl-auto =update
Pom.xml
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0
<groupId>com.learing</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.BUILD-SNAPSHOT</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-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.4.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.3.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
【问题讨论】：
你能显示正确的StatusController类吗，你显示的是错误的类 你现在可以检查一下我用状态控制器编辑的问题。 你为什么使用@Repository注解？如果你不处理一些特殊的数据访问异常，你可以省略它。见->javabeat.net/spring-annotations-component 好的，我从该类中删除了 Repository 注释。 【参考方案1】：您需要从您的 POM 中删除这些：
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.4.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.3.Final</version>
</dependency>
【讨论】：
【参考方案2】：Spring Data 使用名为 entityManagerFactory 的默认 bean 查找 EntityManagerFactory。
尝试在您的配置中使用以下注释，例如：
@EnableJpaRepositories(basePackages="com.learing.demo", entityManagerFactoryRef="entityManagerFactory") 类配置
【讨论】：
【参考方案3】：我在您的 application.properties 配置中发现了问题。你使用了错误的属性
改变。
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.jpa.hibernate.dialect=org.hibernate.dialect.SQLServer2012Dialect
到
spring.datasource.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.SQLServer2012Dialect
【讨论】：
是的，我修改了，但我仍然可以看到同样的问题。以上是关于没有找到 EntityManager bean？的主要内容，如果未能解决你的问题，请参考以下文章
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