如何将JDBC驱动程序部署到WebApp可以使用的Wildfly
我们目前正在从Tomcat迁移到Wildfly 10服务器。我们喜欢利用JavaEE服务器。目前,我们在数据源方面存在一些问题。我们已经在Wildfly上部署了JDBC驱动程序并设置了数据源。 这基本上是好的,但是我们喜欢使用DatabaseQueryNotification(Oracle)来处理数据库端事件 现在我遇到的问题是: 当我用war打包驱动程序时(另外),由于T4Connection和OracleConnection不匹配,我得到一个ClassCastException。因此,我从War中删除了JDBC驱动程序(maven->scope:provided)。但是现在我的应用程序在部署时失败了,因为NoClassDefFound(参见下面的Stacktrace) 如何确保应用程序可以找到JDBC驱动程序 Java代码段:如何将JDBC驱动程序部署到WebApp可以使用的Wildfly,jdbc,wildfly,wildfly-10,Jdbc,Wildfly,Wildfly 10,我们目前正在从Tomcat迁移到Wildfly 10服务器。我们喜欢利用JavaEE服务器。目前,我们在数据源方面存在一些问题。我们已经在Wildfly上部署了JDBC驱动程序并设置了数据源。 这基本上是好的,但是我们喜欢使用DatabaseQueryNotification(Oracle)来处理数据库端事件 现在我遇到的问题是: 当我用war打包驱动程序时(另外),由于T4Connection和OracleConnection不匹配,我得到一个ClassCastException。因此,我从W
public class DBListener implements IDBListener, Runnable, DatabaseChangeListener, IPropertyListener, Serializable {
@Resource(lookup = "java:/PlsDS")
private DataSource dataSource;
...
public void connectToDB(){
Connection tmpCon = dataSource.getConnection();
connection = (OracleConnection) tmpCon.getMetaData().getConnection();
...
}
}
堆栈跟踪:
14:32:59,869 WARN [org.jboss.modules] (MSC service thread 1-7) Failed to define class de.istec.pls.client.db.listener.DBListener in Module "deployment.client.pls-sc-1.0.0-SNAPSHOT.war:main" from Service Module Loader: java.lang.NoClassDefFoundError: Failed to link de/istec/pls/client/db/listener/DBListener (Module "deployment.client.pls-sc-1.0.0-SNAPSHOT.war:main" from Service Module Loader): oracle/jdbc/dcn/DatabaseChangeListener
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:446)
at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:274)
at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:78)
at org.jboss.modules.Module.loadModuleClass(Module.java:606)
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93)
at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.loadClassInfoSet(ServletContainerInitializerDeploymentProcessor.java:259)
at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.deploy(ServletContainerInitializerDeploymentProcessor.java:169)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:147)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
14:32:59,871 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-7) MSC000001: Failed to start service jboss.deployment.unit."client.pls-sc-1.0.0-SNAPSHOT.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."client.pls-sc-1.0.0-SNAPSHOT.war".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of deployment "client.pls-sc-1.0.0-SNAPSHOT.war"
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:154)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: Failed to link de/istec/pls/client/db/listener/DBListener (Module "deployment.client.pls-sc-1.0.0-SNAPSHOT.war:main" from Service Module Loader): oracle/jdbc/dcn/DatabaseChangeListener
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:446)
at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:274)
at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:78)
at org.jboss.modules.Module.loadModuleClass(Module.java:606)
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93)
at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.loadClassInfoSet(ServletContainerInitializerDeploymentProcessor.java:259)
at org.wildfly.extension.undertow.deployment.ServletContainerInitializerDeploymentProcessor.deploy(ServletContainerInitializerDeploymentProcessor.java:169)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:147)
您应该通过JNDI或CDI获取数据源的实例。我已经解决了这个问题:
<module xmlns="urn:jboss:module:1.1" name="com.oracle">
<resources>
<resource-root path="ojdbc7-12.1.0.2.jar"/>
</resources>
<dependencies>
<system export="true">
<paths>
<path name="oracle/jdbc/OracleStatement"/>
<path name="oracle/jdbc/dcn/DatabaseChangeEvent"/>
<path name="oracle/jdbc/dcn/DatabaseChangeListener"/>
<path name="oracle/jdbc/dcn/DatabaseChangeRegistration"/>
<path name="oracle/jdbc/dcn/QueryChangeDescription"/>
<path name="oracle/jdbc/dcn/RowChangeDescription"/>
</paths>
</system>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<archive>
<manifestEntries>
<Dependencies>com.oracle</Dependencies>
</manifestEntries>
</archive>
</configuration>
</plugin>
pom.xml
<module xmlns="urn:jboss:module:1.1" name="com.oracle">
<resources>
<resource-root path="ojdbc7-12.1.0.2.jar"/>
</resources>
<dependencies>
<system export="true">
<paths>
<path name="oracle/jdbc/OracleStatement"/>
<path name="oracle/jdbc/dcn/DatabaseChangeEvent"/>
<path name="oracle/jdbc/dcn/DatabaseChangeListener"/>
<path name="oracle/jdbc/dcn/DatabaseChangeRegistration"/>
<path name="oracle/jdbc/dcn/QueryChangeDescription"/>
<path name="oracle/jdbc/dcn/RowChangeDescription"/>
</paths>
</system>
<module name="javax.api"/>
<module name="javax.transaction.api"/>
</dependencies>
</module>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<archive>
<manifestEntries>
<Dependencies>com.oracle</Dependencies>
</manifestEntries>
</archive>
</configuration>
</plugin>
maven战争插件
3.1.0
com.oracle
我通过JNDI获取数据源,这不是问题所在。错误表示找不到我用类实现的oracle/jdbc/dcn/DatabaseChangeListener。Irrc您获得的连接是org.jboss.jca.adapters.jdbc.WrappedConnection,您需要从中获得“真实”连接。连接不是我的问题。应用程序当前在部署时失败,因为它找不到JDBC实现,特别是DatabaseChangeListener(oracle.JDBC.dcn.DatabaseChangeListene)。我需要导入sevral orcacle.jndi.dcn.*类,但需要从服务器接收驱动程序(jdbc7.jar)。在为驱动程序创建模块时,是否导出(使用module.xml中的exports标记)了这些包?否则这些将不可用这是缺少的提示。谢谢你肯定不想在你的战争中包装司机。您是为驱动程序添加了模块还是部署了JAR?在本例中,您可能需要为其创建一个模块。我刚刚通过管理控制台部署了JAR。通过管理控制台部署的JAR文件将可用于配置文件中定义的数据源。若要使JDBC驱动程序类可用于webapp,则必须在webapp类路径中创建模块或添加JDBC驱动程序jar