我想使用连接池与码头6,但到目前为止,它给我很多麻烦。Jetty 6:无法创建上下文(NoInitialContextException)
我
InitialContext context = new InitialContext();
它不会抛出异常,但是当我检查上下文变量我看到这一点,这是有点可疑:
通知的defaultInitCtx中=空值。
后,我试图得到一个数据源与行:
Datasource dataSource = (DataSource)context.lookup("java:comp/env/MySQLDB");
,现在我得到一个异常说,没有初始上下文:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
很显然,我必须做的事情错,但我无法找到什么... 如果有人能帮助,我将不胜感激!
这里是我的的jetty.xml:
<Configure id="Server" class="org.mortbay.jetty.Server">
... (all default except those lines I added)
<Call name="setAttribute">
<Arg>org.eclipse.jetty.webapp.configuration</Arg>
<Arg>
<Array type="java.lang.String">
<Item>org.eclipse.jetty.webapp.WebInfConfiguration</Item>
<Item>org.eclipse.jetty.webapp.WebXmlConfiguration</Item>
<Item>org.eclipse.jetty.webapp.MetaInfConfiguration</Item>
<Item>org.eclipse.jetty.webapp.FragmentConfiguration</Item>
<Item>org.eclipse.jetty.plus.webapp.EnvConfiguration</Item>
<Item>org.eclipse.jetty.plus.webapp.PlusConfiguration</Item>
<Item>org.eclipse.jetty.webapp.JettyWebXmlConfiguration</Item>
<Item>org.eclipse.jetty.webapp.TagLibConfiguration</Item>
</Array>
</Arg>
</Call>
</Configure>
我WEB-INF/web.xml中:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web- app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Test</display-name>
<servlet>
<description></description>
<display-name>Default</display-name>
<servlet-name>Default</servlet-name>
<servlet-class>Default</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Default</servlet-name>
<url-pattern>/Default</url-pattern>
</servlet-mapping>
<resource-ref>
<description>DB Connection</description>
<res-ref-name>MySQLDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</web-app>
我WEB-INF /码头-env.xml :
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://jetty.mortbay.org/configure.dtd">
<Configure class="org.mortbay.jetty.webapp.WebAppContext">
<Set name="ConfigurationClasses">
<Ref id="plusConfig"/>
</Set>
<!-- MySql datasource -->
<New id="MySQLDB" class="org.mortbay.jetty.plus.naming.Resource">
<Arg></Arg>
<Arg>MySQLDB</Arg>
<Arg>
<New class="org.apache.commons.dbcp.BasicDataSourceFactory">
<Set name="driverClassName">com.mysql.jdbc.Driver</Set>
<Set name="url">jdbc:mysql://host_ip</Set>
<Set name="username">username</Set>
<Set name="password">password</Set>
<Set name="auth">Container</Set>
<Set name="maxActive">-1</Set>
<Set name="maxIdle">30</Set>
<Set name="maxWait">10000</Set>
<Set name="minEvictableIdleTimeMillis">600000</Set>
<Set name="name">MySQLDB</Set>
<Set name="removeAbandoned">true</Set>
<Set name="removeAbandonedTimeout">5000</Set>
<Set name="timeBetweenEvictionRunsMillis">10000</Set>
<Set name="type">javax.sql.DataSource</Set>
</New>
</Arg>
</New>
看起来这个链接可能会证明是有用的。 http://stackoverflow.com/questions/1525385/noinitialcontextexception-errori/1989115#1989115 – 2011-07-22 03:25:59