spring 创建在应用程序上声明的@EnableJpaRepositories中定义的名为“userRepository”的Bean时出错：不是托管类型：class

2wnc66cl  于 2023-11-16  发布在  Spring
关注(0)|答案(2)|浏览(144)

主类

  1. package com.TVMovie.ReviewSystem;
  3. import org.springframework.boot.SpringApplication;
  4. import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
  5. import org.springframework.boot.autoconfigure.SpringBootApplication;
  6. import org.springframework.boot.autoconfigure.domain.EntityScan;
  7. import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
  8. import org.springframework.context.annotation.Bean;
  9. import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
  11. @EnableJpaRepositories(basePackages = "com.TVMovie.ReviewSystem.repository")
  12. @SpringBootApplication
  13. @EntityScan("com.TVMovie.ReviewSystem.entity")
  14. public class Application {
  16.     public static void main(String[] args) {
  17.         SpringApplication.run(Application.class, args);
  18.     }
  20. }

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实体类

  1. package com.TVMovie.ReviewSystem.entity;
  3. import java.util.HashSet;
  4. import java.util.Set;
  6. import javax.persistence.CascadeType;
  7. import javax.persistence.Entity;
  8. import javax.persistence.GeneratedValue;
  9. import javax.persistence.GenerationType;
  10. import javax.persistence.Id;
  11. import javax.persistence.OneToMany;
  12. import javax.persistence.Table;
  14. import lombok.Data;
  16. @Data
  17. @Table
  18. @Entity
  19. public class User {
  20.     @Id
  21.     @GeneratedValue(strategy = GenerationType.IDENTITY)
  22.     private Long id;
  23.     private String username;
  24.     private String password;
  25.     private String email;
  26.     private String firstName;
  27.     private String lastName;
  29.     @OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
  30.     private Set<Rating> ratings = new HashSet<>();
  32.     @OneToMany(mappedBy = "user", cascade = CascadeType.ALL)
  33.     private Set<Review> reviews = new HashSet<>();
  35.     public User() {
  37.     }
  39.     public User(Long id, String username, String password, String email, String firstName, String lastName,
  40.             Set<Rating> ratings, Set<Review> reviews) {
  41.         super();
  42.         this.id = id;
  43.         this.username = username;
  44.         this.password = password;
  45.         this.email = email;
  46.         this.firstName = firstName;
  47.         this.lastName = lastName;
  48.         this.ratings = ratings;
  49.         this.reviews = reviews;
  50.     }
  52.     public Long getId() {
  53.         return id;
  54.     }
  56.     public void setId(Long id) {
  57.         this.id = id;
  58.     }
  60.     public String getUsername() {
  61.         return username;
  62.     }
  64.     public void setUsername(String username) {
  65.         this.username = username;
  66.     }
  68.     public String getPassword() {
  69.         return password;
  70.     }
  72.     public void setPassword(String password) {
  73.         this.password = password;
  74.     }
  76.     public String getEmail() {
  77.         return email;
  78.     }
  80.     public void setEmail(String email) {
  81.         this.email = email;
  82.     }
  84.     public String getFirstName() {
  85.         return firstName;
  86.     }
  88.     public void setFirstName(String firstName) {
  89.         this.firstName = firstName;
  90.     }
  92.     public String getLastName() {
  93.         return lastName;
  94.     }
  96.     public void setLastName(String lastName) {
  97.         this.lastName = lastName;
  98.     }
  100.     public Set<Rating> getRatings() {
  101.         return ratings;
  102.     }
  104.     public void setRatings(Set<Rating> ratings) {
  105.         this.ratings = ratings;
  106.     }
  108.     public Set<Review> getReviews() {
  109.         return reviews;
  110.     }
  112.     public void setReviews(Set<Review> reviews) {
  113.         this.reviews = reviews;
  114.     }
  116.     @Override
  117.     public String toString() {
  118.         return "User [id=" + id + ", username=" + username + ", password=" + password + ", email=" + email
  119.                 + ", firstName=" + firstName + ", lastName=" + lastName + ", ratings=" + ratings + ", reviews="
  120.                 + reviews + "]";
  121.     }
  123. }

型

仓库接口

  1. package com.TVMovie.ReviewSystem.repository;
  3. import java.util.List;
  5. import org.springframework.data.jpa.repository.JpaRepository;
  6. import org.springframework.data.jpa.repository.Query;
  7. import org.springframework.data.repository.query.Param;
  8. import org.springframework.stereotype.Repository;
  10. import com.TVMovie.ReviewSystem.entity.User;
  12. @Repository
  13. public interface UserRepository extends JpaRepository<User, Long> {
  14.     User save(User user);
  16.     List<User> findAll();
  18.     long count();
  20.     void delete(User user);
  22.     User findByUsername(String username);
  24.     User findByEmail(String email);
  26.     List<User> findByFirstName(String firstName);
  28.     List<User> findByLastName(String lastName);
  30.     @Query("SELECT u FROM User u LEFT JOIN FETCH u.ratings")
  31.     List<User> findAllWithRatings();
  33.     @Query(value = "SELECT * FROM user WHERE username LIKE %:search%", nativeQuery = true)
  34.     List<User> searchUsersByUsername(@Param("search") String search);
  36.     User findByUsernameAndPassword(String username, String password);
  38. }

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服务类

  1. package com.TVMovie.ReviewSystem.service;
  3. import java.util.List;
  4. import java.util.Optional;
  6. import org.springframework.stereotype.Service;
  8. import com.TVMovie.ReviewSystem.entity.Rating;
  9. import com.TVMovie.ReviewSystem.entity.Review;
  10. import com.TVMovie.ReviewSystem.entity.User;
  12. public interface UserService {
  14.     // Create (Save) a User
  15.     User save(User user);
  17.     // Retrieve (Read) All Users
  18.     List<User> findAll();
  20.     Optional<User> findById(Long id);
  22.     // Count the Number of Users
  23.     long count();
  25.     // Delete (Remove) a User
  26.     void delete(User user);
  28.     // Retrieve a User by Username
  29.     User findByUsername(String username);
  31.     // Retrieve a User by Email
  32.     User findByEmail(String email);
  34.     // Retrieve Users by First Name
  35.     List<User> findByFirstName(String firstName);
  37.     // Retrieve Users by Last Name
  38.     List<User> findByLastName(String lastName);
  40.     // Retrieve All Users with Ratings
  41.     List<User> findAllWithRatings();
  43.     // Search Users by Username
  44.     List<User> searchUsersByUsername(String search);
  46.     // Authenticate a User by Username and Password
  47.     Optional<User> authenticateUser(String username, String password);
  49.     // Add a Rating to a User
  50.     Rating addRatingToUser(User user, Rating rating);
  52.     // Remove a Rating from a User
  53.     void removeRatingFromUser(User user, Rating rating);
  55.     // Add a Review to a User
  56.     Review addReviewToUser(User user, Review review);
  58.     // Remove a Review from a User
  59.     void removeReviewFromUser(User user, Review review);
  61. }
  1. package com.TVMovie.ReviewSystem.service;
  3. import java.util.List;
  4. import java.util.Optional;
  6. import org.springframework.stereotype.Service;
  8. import com.TVMovie.ReviewSystem.entity.Rating;
  9. import com.TVMovie.ReviewSystem.entity.Review;
  10. import com.TVMovie.ReviewSystem.entity.User;
  12. @Service
  13. public class UserServiceImpl implements UserService {
  15.     @Override
  16.     public User save(User user) {
  17.         // TODO Auto-generated method stub
  18.         return null;
  19.     }
  21.     @Override
  22.     public List<User> findAll() {
  23.         // TODO Auto-generated method stub
  24.         return null;
  25.     }
  27.     @Override
  28.     public Optional<User> findById(Long id) {
  29.         // TODO Auto-generated method stub
  30.         return null;
  31.     }
  33.     @Override
  34.     public long count() {
  35.         // TODO Auto-generated method stub
  36.         return 0;
  37.     }
  39.     @Override
  40.     public void delete(User user) {
  41.         // TODO Auto-generated method stub
  43.     }
  45.     @Override
  46.     public User findByUsername(String username) {
  47.         // TODO Auto-generated method stub
  48.         return null;
  49.     }
  51.     @Override
  52.     public User findByEmail(String email) {
  53.         // TODO Auto-generated method stub
  54.         return null;
  55.     }
  57.     @Override
  58.     public List<User> findByFirstName(String firstName) {
  59.         // TODO Auto-generated method stub
  60.         return null;
  61.     }
  63.     @Override
  64.     public List<User> findByLastName(String lastName) {
  65.         // TODO Auto-generated method stub
  66.         return null;
  67.     }
  69.     @Override
  70.     public List<User> findAllWithRatings() {
  71.         // TODO Auto-generated method stub
  72.         return null;
  73.     }
  75.     @Override
  76.     public List<User> searchUsersByUsername(String search) {
  77.         // TODO Auto-generated method stub
  78.         return null;
  79.     }
  81.     @Override
  82.     public Optional<User> authenticateUser(String username, String password) {
  83.         // TODO Auto-generated method stub
  84.         return null;
  85.     }
  87.     @Override
  88.     public Rating addRatingToUser(User user, Rating rating) {
  89.         // TODO Auto-generated method stub
  90.         return null;
  91.     }
  93.     @Override
  94.     public void removeRatingFromUser(User user, Rating rating) {
  95.         // TODO Auto-generated method stub
  97.     }
  99.     @Override
  100.     public Review addReviewToUser(User user, Review review) {
  101.         // TODO Auto-generated method stub
  102.         return null;
  103.     }
  105.     @Override
  106.     public void removeReviewFromUser(User user, Review review) {
  107.         // TODO Auto-generated method stub
  109.     }
  111. }

控制器类

  1. package com.TVMovie.ReviewSystem.controller;
  3. import com.TVMovie.ReviewSystem.entity.Rating;
  4. import com.TVMovie.ReviewSystem.entity.Review;
  5. import com.TVMovie.ReviewSystem.entity.User;
  6. import com.TVMovie.ReviewSystem.service.UserService;
  7. import org.springframework.beans.factory.annotation.Autowired;
  8. import org.springframework.stereotype.Controller;
  9. import org.springframework.web.bind.annotation.*;
  11. import java.util.ArrayList;
  12. import java.util.List;
  13. import java.util.Optional;
  15. @Controller
  16. @RestController
  17. @RequestMapping("/users")
  18. public class UserController {
  19.     private final UserService userService;
  21.     @Autowired
  22.     public UserController(UserService userService) {
  23.         this.userService = userService;
  24.     }
  26.     @PostMapping
  27.     public User createUser(@RequestBody User user) {
  28.         return userService.save(user);
  29.     }
  31.     @GetMapping
  32.     public List<User> getAllUsers() {
  33.         return userService.findAll();
  34.     }
  36.     @GetMapping("/{id}")
  37.     public Optional<User> getUserById(@PathVariable Long id) {
  38.         return userService.findById(id);
  39.     }
  41.     @DeleteMapping("/{id}")
  42.     public void deleteUser(@PathVariable Long id) {
  43.         Optional<User> user = userService.findById(id);
  44.         user.ifPresent(u -> userService.delete(u));
  45.     }
  47.     @PutMapping("/{id}")
  48.     public User updateUser(@PathVariable Long id, @RequestBody User user) {
  49.         user.setId(id);
  50.         return userService.save(user);
  51.     }
  53.     @GetMapping("/{id}/ratings")
  54.     public List<Rating> getUserRatings(@PathVariable Long id) {
  55.         Optional<User> user = userService.findById(id);
  56.         return user.map(u -> new ArrayList<>(u.getRatings())).orElse(null);
  57.     }
  59.     @GetMapping("/{id}/reviews")
  60.     public List<Review> getUserReviews(@PathVariable Long id) {
  61.         Optional<User> user = userService.findById(id);
  62.         return user.map(u -> new ArrayList<>(u.getReviews())).orElse(null);
  63.     }
  65. }

型

pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <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">
  3.     <modelVersion>4.0.0</modelVersion>
  4.     <parent>
  5.         <groupId>org.springframework.boot</groupId>
  6.         <artifactId>spring-boot-starter-parent</artifactId>
  7.         <version>3.1.5</version>
  8.         <relativePath /> <!-- lookup parent from repository -->
  9.     </parent>
  10.     <groupId>com.TVMovie</groupId>
  11.     <artifactId>ReviewSystem</artifactId>
  12.     <version>0.0.1-SNAPSHOT</version>
  13.     <name>demo</name>
  14.     <description>Demo project for Spring Boot</description>
  15.     <properties>
  16.         <java.version>17</java.version>
  17.     </properties>
  18.     <dependencies>
  19.         <dependency>
  20.             <groupId>org.springframework.boot</groupId>
  21.             <artifactId>spring-boot-starter-data-jpa</artifactId>
  22.         </dependency>
  23.         <dependency>
  24.             <groupId>org.springframework.boot</groupId>
  25.             <artifactId>spring-boot-starter-data-rest</artifactId>
  26.         </dependency>
  27.         <dependency>
  28.             <groupId>org.springframework.boot</groupId>
  29.             <artifactId>spring-boot-starter-security</artifactId>
  30.         </dependency>
  31.         <dependency>
  32.             <groupId>org.springframework.boot</groupId>
  33.             <artifactId>spring-boot-starter-web</artifactId>
  34.         </dependency>
  35.         <dependency>
  36.             <groupId>org.hibernate.javax.persistence</groupId>
  37.             <artifactId>hibernate-jpa-2.1-api</artifactId>
  38.             <version>1.0.0.Final</version>
  39.         </dependency>
  40.         <!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
  41.         <dependency>
  42.             <groupId>javax.validation</groupId>
  43.             <artifactId>validation-api</artifactId>
  44.             <version>2.0.0.Final</version>
  45.         </dependency>
  46.         <dependency>
  47.             <groupId>org.springframework.boot</groupId>
  48.             <artifactId>spring-boot-starter-validation</artifactId>
  49.         </dependency>
  50.         <dependency>
  51.             <groupId>mysql</groupId>
  52.             <artifactId>mysql-connector-java</artifactId>
  53.             <version>8.0.28</version> <!-- Use the appropriate version -->
  54.         </dependency>
  56.         <!-- Hibernate -->
  57.         <dependency>
  58.             <groupId>org.hibernate</groupId>
  59.             <artifactId>hibernate-core</artifactId>
  60.             <version>5.5.7.Final</version> <!-- Use the appropriate version -->
  61.         </dependency>
  62.         <dependency>
  63.             <groupId>com.h2database</groupId>
  64.             <artifactId>h2</artifactId>
  65.             <scope>runtime</scope>
  66.         </dependency>
  67.         <dependency>
  68.             <groupId>org.springframework.boot</groupId>
  69.             <artifactId>spring-boot-devtools</artifactId>
  70.             <scope>runtime</scope>
  71.         </dependency>
  73.         <dependency>
  74.             <groupId>org.projectlombok</groupId>
  75.             <artifactId>lombok</artifactId>
  76.             <optional>true</optional>
  77.         </dependency>
  78.         <dependency>
  79.             <groupId>com.mysql</groupId>
  80.             <artifactId>mysql-connector-j</artifactId>
  81.             <scope>runtime</scope>
  82.         </dependency>
  83.         <dependency>
  84.             <groupId>mysql</groupId>
  85.             <artifactId>mysql-connector-java</artifactId>
  86.             <version>8.0.28</version> <!-- Use the latest version -->
  87.         </dependency>
  88.         <dependency>
  89.             <groupId>org.springframework.boot</groupId>
  90.             <artifactId>spring-boot-starter-test</artifactId>
  91.             <scope>test</scope>
  92.         </dependency>
  93.         <dependency>
  94.             <groupId>org.springframework.security</groupId>
  95.             <artifactId>spring-security-test</artifactId>
  96.             <scope>test</scope>
  97.         </dependency>
  98.     </dependencies>
  100.     <build>
  101.         <plugins>
  102.             <plugin>
  103.                 <groupId>org.springframework.boot</groupId>
  104.                 <artifactId>spring-boot-maven-plugin</artifactId>
  105.             </plugin>
  106.         </plugins>
  107.     </build>
  109. </project>

型
即使我已经多次更正代码并创建代码，我还是得到了相同的错误。
org.springframework.beans.factory.BeanCreationException：创建在com.TVMovie.ReviewSystem.repository中定义的名为“userRepository”的bean时出错。在应用程序上声明的@EnableJpaRepositories中定义的UserRepository：不是托管类型：class com. TVMovie. ReviewSystem. entity. User。

spring

2条答案

按热度按时间
fcy6dtqo

fcy6dtqo1#

这里的问题是混合了hibernate API的版本。spring-boot-starter-parent的<version>3.1.5</version>意味着在spring-boot-starter-data-jpa中使用的hibernate的底层版本是6.2.x。它使用jakarta.x而不是javax.x
要修复它：
从pom.xml中删除下一个依赖项：

  1. <dependency>
  2.             <groupId>org.hibernate.javax.persistence</groupId>
  3.             <artifactId>hibernate-jpa-2.1-api</artifactId>
  4.             <version>1.0.0.Final</version>
  5.         </dependency>
  6.         <!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
  7.         <dependency>
  8.             <groupId>javax.validation</groupId>
  9.             <artifactId>validation-api</artifactId>
  10.             <version>2.0.0.Final</version>
  11.         </dependency>
  13. <dependency>
  14.     <groupId>org.hibernate</groupId>
  15.     <artifactId>hibernate-core</artifactId>
  16.     <version>5.5.7.Final</version> <!-- Use the appropriate version -->
  17. </dependency>

字符串
在Entity User类中替换下一个导入：

  1. import javax.persistence.CascadeType;
  2. import javax.persistence.Entity;
  3. import javax.persistence.GeneratedValue;
  4. import javax.persistence.GenerationType;
  5. import javax.persistence.Id;
  6. import javax.persistence.OneToMany;
  7. import javax.persistence.Table;

型
收件人：

  1. import jakarta.persistence.CascadeType;
  2. import jakarta.persistence.Entity;
  3. import jakarta.persistence.GeneratedValue;
  4. import jakarta.persistence.GenerationType;
  5. import jakarta.persistence.Id;
  6. import jakarta.persistence.OneToMany;
  7. import jakarta.persistence.Table;

型

展开查看全部
赞(0）分享  回复(0）举报  2023-11-16
uqdfh47h

uqdfh47h2#

此错误是“Javax”命名空间的结果。将User实体类中的导入语句替换为“Jakarta”命名空间。阅读更多

  1. import javax.persistence.*; //Change this

字符串
到

  1. import jakarta.persistence.*;  //to this

型

赞(0）分享  回复(0）举报  2023-11-16
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