Question

为解决org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [com.microsoft.sqlserver.jdbc.SQLServerDriver]错误，我将此依赖项添加到了pom：

        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>mssql-jdbc</artifactId>
            <version>6.1.0.jre7</version>
        </dependency>

这是SQLServer连接驱动程序的开放代码依赖性，但是当我放它时，出现错误我的pom.xml出现：

Missing artifact org.codehaus.jackson:jackson-mapper-asl:jar:2.8.1

已更新：

如果我仍然运行该应用程序，则日志控制台将显示以下跟踪信息：

15:42:28,432 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 50) MSC000001: Failed to start service jboss.persistenceunit."vp301b-ear.ear/vp301b.war#unidadPersistencia": org.jboss.msc.service.StartException in service jboss.persistenceunit."vp301b-ear.ear/vp301b.war#unidadPersistencia": java.lang.NoClassDefFoundError: org/hibernate/annotations/common/reflection/ClassLoadingException
    at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:103)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [rt.jar:1.7.0_80]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.7.0_80]
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.7.0_80]
    at org.jboss.threads.JBossThread.run(JBossThread.java:122) [jboss-threads-2.1.2.Final-redhat-1.jar:2.1.2.Final-redhat-1]
Caused by: java.lang.NoClassDefFoundError: org/hibernate/annotations/common/reflection/ClassLoadingException
    at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1404)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1846)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:857)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
    at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:425)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:849)
    at org.hibernate.jpa.HibernatePersistenceProvider.createContainerEntityManagerFactory(HibernatePersistenceProvider.java:152)
    at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:200)
    at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.access$600(PersistenceUnitServiceImpl.java:57)
    at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:99)
    ... 4 more
Caused by: java.lang.ClassNotFoundException: org.hibernate.annotations.common.reflection.ClassLoadingException from [Module "deployment.vp301b-ear.ear.vp301b.war:main" from Service Module Loader]
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:213) [jboss-modules.jar:1.3.6.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:459) [jboss-modules.jar:1.3.6.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:408) [jboss-modules.jar:1.3.6.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:389) [jboss-modules.jar:1.3.6.Final-redhat-1]
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:134) [jboss-modules.jar:1.3.6.Final-redhat-1]
    ... 14 more

当我尝试使用mvn comile进行编译时，结果如下：

 Failed to execute goal on project vp301b-war: Could not resolve dependencies for project es.xunta.amtega.vp301b:vp301b-war:war:1.0-SNAPSHOT: Failure to find org.codehaus.jackson:jackson-mapper-asl:jar:2.8.1 in http://nexus.xunta.local/nexus/content/groups/public/ was cached in the local repository, resolution will not be reattempted until the update interval of amtega has elapsed or updates are forced -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :vp301b-war

Answer 1

正如khmarbaise所指出的那样，问题在于jackson-mapper-asl-2.8.1.jar在您的存储库中不可用。但是我看到mssql-jdbc-6.1.0.jre7.jar对jackson-mapper-asl的1.9.2版本（而不是2.8.1版本）具有传递性依赖，因此我想您所说的内容是错误的（也许您已经进行了很多尝试）。我建议尝试使用JDBC驱动程序的 6.4.0.jre7 版本，因为它完全不依赖于jackson-mapper-asl，并且是最新的基于jre7的版本。

还要注意，JDBC驱动程序不应包含在战争的类路径中，而应包含在应用程序服务器的类路径中（我假设您的Web应用程序以正确的方式（即通过服务器）访问数据库-提供的连接池，而不是通过DriverManager）；这意味着驱动程序不应在您的POM中成为编译范围的依赖。

SQLServerDriver Maven依赖关系导致错误

1 个答案: