Tomcat'；什么是context.xml？

我们正在使用JNDI查找数据库连接。在Tomcat的global context.xml文件中，我们有如下类似的内容：

<context>
    <Resource
        ...
        name="jdbc/mysql"
        ....
    />
</context>

如果我将第二个资源的name属性从“jdbc/mysql/otherapp”更改为“jdbc/otherapp”，Tomcat将正常启动

任何人都可以详细说明名称属性是如何工作的吗？为什么我以前收到一个错误？ 查看文档并没有给我多少帮助

---

谢谢。

您基本上可以阅读如下内容：

对于

：您正在创建名为MyDB的JDBC资源

对于

：您正在创建一个名为MyBean的JavaBean资源

换句话说，名称编码为“资源类型/资源名称”

<context>
    <Resource
        ...
        name="jdbc/mysql"
        ....
    />
    <Resource
        ...
        name="jdbc/mysql/otherapp"
        ....
    />

</context>

SEVERE: ContainerBase.addChild: start: 
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/CallCycleSystem##1.0.4.201410241335]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:962)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1603)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.ClassCastException: org.apache.tomcat.dbcp.dbcp.BasicDataSource cannot be cast to javax.naming.Context
    at org.apache.catalina.core.NamingContextListener.createSubcontexts(NamingContextListener.java:1249)
    at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1051)
    at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:671)
    at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:270)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 11 more