Intellij没有从pom.xml导入SpringData Dependency

Question

我正在尝试使用spring数据中的JPA存储库，但导入无效。我在pom.xml中有正确的依赖关系，但仍然没有从maven加载jar。

我的pom.xml看起来像这样

 <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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bestbuy.supportspace</groupId>
<artifactId>video-library</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>Video Library</name>

<properties>
    <spring.version>3.2.0.RELEASE</spring.version>
</properties>

<dependencies>

    <!-- SPRING -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>1.4.2.RELEASE</version>
        <scope>compile</scope>
    </dependency>

    <!-- SERVLET -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
    </dependency>

    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.1</version>
        <scope>provided</scope>
    </dependency>

    <!--DATABASE -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.18</version>
        <type>jar</type>
    </dependency>

    <dependency>
        <groupId>org.hsqldb</groupId>
        <artifactId>hsqldb</artifactId>
        <version>2.2.4</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-annotations</artifactId>
        <version>3.5.6-Final</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.0.0.Final</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>

    <!-- TESTING -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.8.2</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.hibernate.javax.persistence</groupId>
        <artifactId>hibernate-jpa-2.0-api</artifactId>
        <version>1.0.1.Final</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>1.4.2.RELEASE</version>
    </dependency>

</dependencies>

<build>
    <finalName>VideoLibrary</finalName>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>
        <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <includes>
                    <include>**/*Tests.java</include>
                </includes>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <executions>
                <execution>
                    <phase>package</phase>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>
</project>

我几乎研究过每一件事。 maven存储库确实具有版本spring-data-jpa，版本为1.2.2。释放，但仍无法正常工作

Answer 1

正如Dave Newton所说 - 你应该重新导入pom。另外，请注意JpaRepository是一个接口，因此您需要实现而不是扩展。

Answer 2

你的pom文件中对spring-data-jpa的依赖是两次

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-jpa</artifactId>
    <version>1.4.2.RELEASE</version>
    <scope>compile</scope>
</dependency>

和

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-jpa</artifactId>
    <version>1.4.2.RELEASE</version>
</dependency>

尝试删除一个并检查1.4.2是你的maven repo

Answer 3

尝试像这样直接将版本设置为依赖项，而不是将其描述为属性。

<!-- SPRING -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>3.2.0.RELEASE</version>
    </dependency>