我有一个 Maven 企业应用程序项目。我在 EJB 项目中创建了持久性单元、实体类和 EJB 会话 Bean。尝试构建项目时出现此错误：
无法在项目 Blog6-ejb 上执行目标：无法解析项目 com.mycompany:Blog6-ejb:ejb:1.0-SNAPSHOT 的依赖项：无法解析以下工件：org.eclipse.persistence:eclipselink:jar:2.2。 0、org.eclipse.persistence:javax.persistence:jar:2.0.3、org.eclipse.persistence:org.eclipse.persistence.jpa.modelgen.processor:jar:2.2.0: 找不到org.eclipse.persistence http://ftp.ing.umu.se/mirror/eclipse/rt/eclipselink/maven.repo中的:eclipselink:jar:2.2.0 被缓存在本地仓库中，直到eclipselink的更新间隔才会重新尝试解析已过期或强制更新 -> [帮助 1]
这是 pom.xml 中的代码
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<artifactId>Blog6</artifactId>
<groupId>com.mycompany</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<groupId>com.mycompany</groupId>
<artifactId>Blog6-ejb</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>ejb</packaging>
<name>Blog6-ejb</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<netbeans.hint.deploy.server>gfv3ee6</netbeans.hint.deploy.server>
</properties>
<dependencies>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>2.2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.0.3</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>org.eclipse.persistence.jpa.modelgen.processor</artifactId>
<version>2.2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ejb-plugin</artifactId>
<version>2.3</version>
<configuration>
<ejbVersion>3.1</ejbVersion>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>6.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<url>http://ftp.ing.umu.se/mirror/eclipse/rt/eclipselink/maven.repo</url>
<id>eclipselink</id>
<layout>default</layout>
<name>Repository for library Library[eclipselink]</name>
</repository>
</repositories>
</project>
持久性.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="com.mycompany_Blog6-ejb_ejb_1.0-SNAPSHOTPU" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>jdbc/sample</jta-data-source>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="eclipselink.ddl-generation" value="create-tables"/>
</properties>
</persistence-unit>
</persistence>
感谢帮助