我是 springboot 的新手，在处理 sts 时遇到错误

问题描述 投票：0回答：1

我在代码中使用Jpa存储库，我的代码如下所示。

com.example.demo ->

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;

@SpringBootApplication
@EntityScan("com.example.demo.model")
public class DemoApplication {

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

}

com.example.demo.controller ->

package com.example.demo.controller;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.example.demo.model.Employee;
import com.example.demo.service.EmployeeService;
//@Controller
@RestController      //@controller+@ResponseBody
public class EmployeeController {
    @Autowired
    private EmployeeService eService;
//  @RequestMapping(value = "/employees",method = RequestMethod.GET)
//  @ResponseBody
    @GetMapping("/employees")
    public List<Employee> getEmployees() {
        return eService.getEmployees();
    }
    @GetMapping("/employee/{id}")
    public String getEmployee(@PathVariable Long id) {
        return "Details for: "+id;
    }
    @PostMapping("/employees")
    public String saveEmployee(@RequestBody Employee employee) {
        return "Saving employee details to the db "+ employee;
    }
    @PutMapping("/employee/{id}")
    public Employee updateemployee(@PathVariable Long id, @RequestBody Employee employee) {
        System.out.print("Update details for"+id);
        return employee;
    }
    @DeleteMapping ("/employee")
    public String deleteEmployee(@RequestParam Long id) {
        return "Details for: "+id;
    }
}

com.example.demo.model ->

package com.example.demo.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="tbl_employee")
public class Employee {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name="id")
    private Long id;
    
    @Column(name="name")
    private String name;
    
    @Column(name="age")
    private Long age;
    
    @Column(name="location")
    private String location;
    
    @Column(name="email")
    private String email;
    
    @Column(name="department")
    private String department;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Long getAge() {
        return age;
    }
    public void setAge(Long age) {
        this.age = age;
    }
    public String getLocation() {
        return location;
    }
    public void setLocation(String location) {
        this.location = location;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    @Override
    public String toString() {
        return "Employee [name=" + name + ", age=" + age + ", location=" + location + ", email=" + email
                + ", department=" + department + "]";
    }
    public String getDepartment() {
        return department;
    }
    public void setDepartment(String department) {
        this.department = department;
    }
}

com.example.demo.repository -> 包 com.example.demo.repository;

                                                  import org.springframework.data.jpa.repository.JpaRepository;

                                                   import org.springframework.stereotype.Repository;

                                                   import com.example.demo.model.Employee;

                                                  *@Repository*

                                                  public interface EmployeeRepository extends JpaRepository\<Employee, Long\> {

                                                   }

com.example.demo.service ->enter image description here（接口）enter image description here（实现）

pom 文件 ->

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.1.5</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>17</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-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>

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

        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>javax.persistence-api</artifactId>
            <version>2.2</version>
        </dependency>
    </dependencies>

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

</project>

这里我只是想通过(@GetMapping("/employees"))返回一个空列表，但它显示如下错误

[2m2023-10-29T12:19:17.956+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.example.demo.DemoApplication        [0;39m [2m:[0;39m Starting DemoApplication using Java 17.0.8.1 with PID 5216 (C:\Users\parit\Documents\demo\target\classes started by parit in C:\Users\parit\Documents\demo)
[2m2023-10-29T12:19:17.959+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.example.demo.DemoApplication        [0;39m [2m:[0;39m No active profile set, falling back to 1 default profile: "default"
[2m2023-10-29T12:19:18.003+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.e.DevToolsPropertyDefaultsPostProcessor[0;39m [2m:[0;39m Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
[2m2023-10-29T12:19:18.003+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.e.DevToolsPropertyDefaultsPostProcessor[0;39m [2m:[0;39m For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
[2m2023-10-29T12:19:18.732+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.s.d.r.c.RepositoryConfigurationDelegate[0;39m [2m:[0;39m Bootstrapping Spring Data JPA repositories in DEFAULT mode.
[2m2023-10-29T12:19:18.785+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.s.d.r.c.RepositoryConfigurationDelegate[0;39m [2m:[0;39m Finished Spring Data repository scanning in 44 ms. Found 1 JPA repository interfaces.
[2m2023-10-29T12:19:20.254+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.s.b.w.embedded.tomcat.TomcatWebServer [0;39m [2m:[0;39m Tomcat initialized with port(s): 8080 (http)
[2m2023-10-29T12:19:20.264+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.apache.catalina.core.StandardService  [0;39m [2m:[0;39m Starting service [Tomcat]
[2m2023-10-29T12:19:20.264+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.apache.catalina.core.StandardEngine   [0;39m [2m:[0;39m Starting Servlet engine: [Apache Tomcat/10.1.15]
[2m2023-10-29T12:19:20.339+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.a.c.c.C.[Tomcat].[localhost].[/]      [0;39m [2m:[0;39m Initializing Spring embedded WebApplicationContext
[2m2023-10-29T12:19:20.340+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mw.s.c.ServletWebServerApplicationContext[0;39m [2m:[0;39m Root WebApplicationContext: initialization completed in 2337 ms
[2m2023-10-29T12:19:20.452+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Starting...
[2m2023-10-29T12:19:20.756+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.zaxxer.hikari.pool.HikariPool       [0;39m [2m:[0;39m HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@36041206
[2m2023-10-29T12:19:20.758+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Start completed.
[2m2023-10-29T12:19:20.803+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.hibernate.jpa.internal.util.LogHelper [0;39m [2m:[0;39m HHH000204: Processing PersistenceUnitInfo [name: default]
[2m2023-10-29T12:19:20.895+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36morg.hibernate.Version                   [0;39m [2m:[0;39m HHH000412: Hibernate ORM core version 6.2.13.Final
[2m2023-10-29T12:19:20.898+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36morg.hibernate.cfg.Environment           [0;39m [2m:[0;39m HHH000406: Using bytecode reflection optimizer
[2m2023-10-29T12:19:21.277+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.s.o.j.p.SpringPersistenceUnitInfo     [0;39m [2m:[0;39m No LoadTimeWeaver setup: ignoring JPA class transformer
[2m2023-10-29T12:19:21.659+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.h.e.t.j.p.i.JtaPlatformInitiator      [0;39m [2m:[0;39m HHH000489: No JTA platform available (set 'hibernate.transaction.jta.platform' to enable JTA platform integration)
[2m2023-10-29T12:19:21.665+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mj.LocalContainerEntityManagerFactoryBean[0;39m [2m:[0;39m Initialized JPA EntityManagerFactory for persistence unit 'default'
[2m2023-10-29T12:19:21.792+05:30[0;39m [33m WARN[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mConfigServletWebServerApplicationContext[0;39m [2m:[0;39m Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'employeeController': Unsatisfied dependency expressed through field 'eService': Error creating bean with name 'employeeServiceImpl': Unsatisfied dependency expressed through field 'eRepository': Error creating bean with name 'employeeRepository' defined in com.example.demo.repository.EmployeeRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Not a managed type: class com.example.demo.model.Employee
[2m2023-10-29T12:19:21.793+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mj.LocalContainerEntityManagerFactoryBean[0;39m [2m:[0;39m Closing JPA EntityManagerFactory for persistence unit 'default'
[2m2023-10-29T12:19:21.796+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Shutdown initiated...
[2m2023-10-29T12:19:21.804+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Shutdown completed.
[2m2023-10-29T12:19:21.805+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.apache.catalina.core.StandardService  [0;39m [2m:[0;39m Stopping service [Tomcat]
[2m2023-10-29T12:19:21.816+05:30[0;39m [32m INFO[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.s.b.a.l.ConditionEvaluationReportLogger[0;39m [2m:[0;39m 

Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled.
[2m2023-10-29T12:19:21.834+05:30[0;39m [31mERROR[0;39m [35m5216[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.s.boot.SpringApplication              [0;39m [2m:[0;39m Application run failed

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'employeeController': Unsatisfied dependency expressed through field 'eService': Error creating bean with name 'employeeServiceImpl': Unsatisfied dependency expressed through field 'eRepository': Error creating bean with name 'employeeRepository' defined in com.example.demo.repository.EmployeeRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Not a managed type: class com.example.demo.model.Employee
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:767) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:747) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:145) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:492) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1416) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:597) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:973) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:950) ~[spring-context-6.0.13.jar:6.0.13]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:616) ~[spring-context-6.0.13.jar:6.0.13]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.1.5.jar:3.1.5]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:738) ~[spring-boot-3.1.5.jar:3.1.5]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:440) ~[spring-boot-3.1.5.jar:3.1.5]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) ~[spring-boot-3.1.5.jar:3.1.5]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-3.1.5.jar:3.1.5]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-3.1.5.jar:3.1.5]
    at com.example.demo.DemoApplication.main(DemoApplication.java:12) ~[classes/:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:50) ~[spring-boot-devtools-3.1.5.jar:3.1.5]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'employeeServiceImpl': Unsatisfied dependency expressed through field 'eRepository': Error creating bean with name 'employeeRepository' defined in com.example.demo.repository.EmployeeRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Not a managed type: class com.example.demo.model.Employee
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:767) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:747) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:145) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:492) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1416) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:597) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1417) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1337) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:764) ~[spring-beans-6.0.13.jar:6.0.13]
    ... 25 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeRepository' defined in com.example.demo.repository.EmployeeRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Not a managed type: class com.example.demo.model.Employee
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1770) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:598) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1417) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1337) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:764) ~[spring-beans-6.0.13.jar:6.0.13]
    ... 39 common frames omitted
Caused by: java.lang.IllegalArgumentException: Not a managed type: class com.example.demo.model.Employee
    at org.hibernate.metamodel.model.domain.internal.JpaMetamodelImpl.managedType(JpaMetamodelImpl.java:192) ~[hibernate-core-6.2.13.Final.jar:6.2.13.Final]
    at org.hibernate.metamodel.model.domain.internal.MappingMetamodelImpl.managedType(MappingMetamodelImpl.java:467) ~[hibernate-core-6.2.13.Final.jar:6.2.13.Final]
    at org.hibernate.metamodel.model.domain.internal.MappingMetamodelImpl.managedType(MappingMetamodelImpl.java:97) ~[hibernate-core-6.2.13.Final.jar:6.2.13.Final]
    at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:82) ~[spring-data-jpa-3.1.5.jar:3.1.5]
    at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getEntityInformation(JpaEntityInformationSupport.java:69) ~[spring-data-jpa-3.1.5.jar:3.1.5]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:246) ~[spring-data-jpa-3.1.5.jar:3.1.5]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:211) ~[spring-data-jpa-3.1.5.jar:3.1.5]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:194) ~[spring-data-jpa-3.1.5.jar:3.1.5]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:81) ~[spring-data-jpa-3.1.5.jar:3.1.5]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:317) ~[spring-data-commons-3.1.5.jar:3.1.5]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:279) ~[spring-data-commons-3.1.5.jar:3.1.5]
    at org.springframework.data.util.Lazy.getNullable(Lazy.java:245) ~[spring-data-commons-3.1.5.jar:3.1.5]
    at org.springframework.data.util.Lazy.get(Lazy.java:114) ~[spring-data-commons-3.1.5.jar:3.1.5]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:285) ~[spring-data-commons-3.1.5.jar:3.1.5]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:132) ~[spring-data-jpa-3.1.5.jar:3.1.5]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1817) ~[spring-beans-6.0.13.jar:6.0.13]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1766) ~[spring-beans-6.0.13.jar:6.0.13]
    ... 49 common frames omitted

为什么会出现错误？

spring spring-boot spring-tool-suite
1个回答
0
投票

您需要扫描package中的所有组件。

从 @EntityScan("com.example.demo.model") 替换为 @ComponentScan(basePackages = "com.example.demo")

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