Jetty中使用JNDI设置环境变量

十二12

　　【目的】
　　Production使用WebSphere作为App Server，但主包方开发团队在Dev环境使用Tomcat binding to Eclipse，我更倾向于使用Mave Jetty Plugin——项目本身就是使用Maven进行依赖管理的！
　　【问题】
　　主包方开发团队要求在Tomcat的Server.xml中定义Naming Resource，用于访问WS-资源，如下：

* - server.xml
*  Add the following inside XML Tag <GlobalNamingResources> :
<Environment name="wsPathPhq" override="false" type="java.lang.String" value="http://localhost:8080/cis2_ws/"/>
<Environment name="wsPathNtn" override="false" type="java.lang.String" value="http://localhost:8080/cis2_ws/"/>
<Environment name="defaultSite" override="false" type="java.lang.String" value="PHQ"/> <!-- PHQ or NTN -->
<Environment name="uiOffShorePath" override="false" type="java.lang.String" value="http://localhost:8080/cis2_ui/"/>
<Environment name="uiOffShoreName" override="false" type="java.lang.String" value="NTN"/>
　　然后在代码中使用javax.naming.InitialContext.lookup(String)进行查找。 但Jetty如何支持？
　　【解决方案】
　　在Jetty.xml中，加入如下部分：

<Configure class="org.eclipse.jetty.webapp.WebAppContext">
<New class="org.eclipse.jetty.plus.jndi.EnvEntry">
<Arg></Arg>
<Arg>wsPathPhq</Arg>
<Arg type="java.lang.String">http://localhost:8080/cis2_ws/</Arg>
<Arg type="boolean">true</Arg>
</New>
...
　　【参考文档】https://wiki.eclipse.org/Jetty/Feature/JNDI

Binding Objects into Jetty JNDI

You can bind four types of object into Jetty JNDI:

• An ordinary POJO instance.
  
• A java.naming.Reference instance.
  
• An object instance that implements the java.naming.Referenceable interface.
  
• A link between a name as referenced in web.xml and as referenced in the environment.
  

The binding for all of these object types follows the same pattern:

<New class=type of naming entry>
<Arg>scope</Arg>
<Arg>name to bind as</Arg>
<Arg>the object to bind</Arg>
</New>




Defining Naming Entries

The type of naming entry can be:

• 
  "org.eclipse.jetty.plus.jndi.EnvEntry" for <env-entry>s.
  
• 
  "org.eclipse.jetty.plus.jndi.Resource" for all other type of resources.
  
• 
  "org.eclipse.jetty.plus.jndi.Transaction" for a JTA manager. For detailed information, see the Configuring XA Transactions section.
  
• 
  "org.eclipse.jetty.plus.jndi.Link" for link between a web.xml resource name and a NamingEntry. For more information, see the Configuring Links section.
  

You can define naming entries in three places:

• jetty.xml
  
• WEB-INF/jetty-env.xml
  
• context xml file