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java - Spring 3.0 中的 Spring 数据

问题描述

如题。我正在使用版本 3.0.7 的 spring：

<dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>3.0.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>3.0.7.RELEASE</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-core -->

        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-core</artifactId>
            <version>3.0.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>3.0.7.RELEASE</version>
        </dependency>

        <!-- Spring Security Web -->
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>3.0.7.RELEASE</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.flywaydb/flyway-core -->
        <dependency>
            <groupId>org.flywaydb</groupId>
            <artifactId>flyway-core</artifactId>
            <version>3.2.1</version>
        </dependency>

        <dependency>
            <groupId>org.testcontainers</groupId>
            <artifactId>testcontainers</artifactId>
            <version>1.14.3</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.testcontainers</groupId>
            <artifactId>postgresql</artifactId>
            <version>1.14.3</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>42.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>1.4.5.RELEASE</version>
        </dependency>
    </dependencies>

我正在尝试在@Entity、@Table 注释等中创建模型类：

package main.model.user;

import lombok.*;
import org.springframework.data.annotation.Id;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import java.util.UUID;

@Entity
@Getter
@Builder(toBuilder = true)
@EqualsAndHashCode
@AllArgsConstructor
@NoArgsConstructor
@Table(name = "user_entity")
public class User implements UserDetails {

    @Id
    @GeneratedValue(generator = "UUID")
    @GenericGenerator(
            name = "UUID",
            strategy = "org.hibernate.id.UUIDGenerator"
    )
    @Column(name = "id", updatable = false, nullable = false)
    private UUID id;

    @Column(name = "first_name")
    private String firstName;

    @Column(name = "last_name")
    private String lastName;

    @Column(name = "username")
    private String username;

    @Column(name = "password")
    private String password;

    @Column(name = "email")
    private String email;

    @Column(name = "phone_number")
    private String phoneNumber;

    @Enumerated(EnumType.STRING)
    @Column(name = "body_part_type")
    private BodyPartType favouriteBodyPartType;

    @ElementCollection(targetClass = String.class, fetch = FetchType.EAGER)
    @CollectionTable(name = "permission", joinColumns = @JoinColumn(name = "user_id", referencedColumnName = "id"))
    @Column(name = "permission_name", nullable = false)
    private Set<String> roles = new HashSet<>();

    @Override
    public Collection<GrantedAuthority> getAuthorities() {
        return roles.stream()
                .map(SimpleGrantedAuthority::new)
                .collect(Collectors.toSet());
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}

但Entity, Table, GeneratedValue, GenericGenerator被标记为红色，我无法导入它们。我有个问题。我对 spring-data 有错误的依赖关系还是它是如何工作的？Mabe它在spring 3.0中不存在？

创建相同Repositories（从 spring-boot 应用程序复制的代码）：

package main.user;

import main.exercise.BodyPartType;
import main.model.user.User;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

import java.util.List;
import java.util.Optional;
import java.util.UUID;

@Repository
public interface UserRepository extends CrudRepository<User, UUID> {

    @Query("SELECT CASE WHEN COUNT(user) > 0 THEN true ELSE false END FROM User user WHERE user.id =:userID")
    boolean doesAccountExistsWithID(@Param("userID") UUID accountID);

    Optional<User> findByUsername(String name);

    Optional<User> findByEmail(String email);

    Optional<User> findByPhoneNumber(String phoneNumber);

    List<User> findUsersByFavouriteBodyPartType(BodyPartType bodyPartType);
}

是否有可能在 Spring 3.0 中制作这样的东西？

标签： javaspringspring-mvcspring-data

解决方案

使用这些依赖项，您可以使用@Entity 和@Repository。

import java.util.UUID;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.annotations.GenericGenerator;

@Table(name = "user_entity")
@Entity
public class EntityExample {
    
    @Id
    @GeneratedValue(generator = "UUID")
    @GenericGenerator(
            name = "UUID",
            strategy = "org.hibernate.id.UUIDGenerator"
    )
    @Column(name = "id", updatable = false, nullable = false)
    private UUID id;

}





<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>
    <parent>
        <groupId>org.springframework</groupId>
        <artifactId>spring-parent</artifactId>
        <version>3.1.4.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.main.mytest</groupId>
    <artifactId>email-registration</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>2.4.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-commons</artifactId>
            <version>2.4.2</version>
        </dependency>
        
    </dependencies>
</project>

如果您不想在 pom 中将 spring 作为父级，那么您可以添加以下依赖项：

<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.main.mytest</groupId>
    <artifactId>email-registration</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
            <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.2</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-annotations</artifactId>
            <version>3.5.6-Final</version>
        </dependency>
        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>javax.persistence-api</artifactId>
            <version>2.2</version>
        </dependency>
    </dependencies>
</project>

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