如何将 JDBC 驱动程序部署到 WebApp 可以使用的 Wildfly
How to deploy a JDBC Driver to Wildfly that can be used by WebApp
我们目前正在从 Tomcat 迁移到 Wildfly 10 服务器。我们喜欢利用 Java EE 服务器。目前我们的数据源有一些问题。我们已经在 Wildfly 上部署了 JDBC 驱动程序并设置了数据源。
这很好用，但我们喜欢将 DatabaseQueryNotification (Oracle) 用于数据库端事件。
现在问题我运行变成：
当我将驱动程序与我的 war 打包时（另外），由于 T4Connection 和 OracleConnection 不匹配，我得到一个 ClassCastException。因此，我从我的 War 中删除了 JDBC-Driver（maven -> 范围：提供）。但是现在我的应用程序在部署时失败了，因为 NoClassDefFound（请参阅下面的 Stacktrace）。
如何确保应用程序可以找到 JDBC 驱动程序？
Java 片段：
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.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.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 获取数据源实例或通过 CDI 注入。
我已经解决了问题：
- 我必须将 JDBC-Driver 作为模块部署（参见：
http://hpehl.info/jdbc-driver-setup.html)
- 我必须从模块
导出所需的oracle.jdbc.dcn*文件
- 在 Manifest.MF 文件中插入依赖项。 （可以通过 Maven 完成，见下文）
module.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>
pom.xml
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<archive>
<manifestEntries>
<Dependencies>com.oracle</Dependencies>
</manifestEntries>
</archive>
</configuration>
</plugin>
我们目前正在从 Tomcat 迁移到 Wildfly 10 服务器。我们喜欢利用 Java EE 服务器。目前我们的数据源有一些问题。我们已经在 Wildfly 上部署了 JDBC 驱动程序并设置了数据源。 这很好用，但我们喜欢将 DatabaseQueryNotification (Oracle) 用于数据库端事件。
现在问题我运行变成：
当我将驱动程序与我的 war 打包时（另外），由于 T4Connection 和 OracleConnection 不匹配，我得到一个 ClassCastException。因此，我从我的 War 中删除了 JDBC-Driver（maven -> 范围：提供）。但是现在我的应用程序在部署时失败了，因为 NoClassDefFound（请参阅下面的 Stacktrace）。
如何确保应用程序可以找到 JDBC 驱动程序？
Java 片段：
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.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.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 获取数据源实例或通过 CDI 注入。
我已经解决了问题：
- 我必须将 JDBC-Driver 作为模块部署（参见： http://hpehl.info/jdbc-driver-setup.html)
- 我必须从模块 导出所需的oracle.jdbc.dcn*文件
- 在 Manifest.MF 文件中插入依赖项。 （可以通过 Maven 完成，见下文）
module.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>
pom.xml
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<archive>
<manifestEntries>
<Dependencies>com.oracle</Dependencies>
</manifestEntries>
</archive>
</configuration>
</plugin>