日期:2014-05-20  浏览次数:20945 次

关于tomcat6.0连接池的配置问题
在配置tomcat6.0连接池时:出现了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
at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.lookup(Unknown Source)
at com.dbUtil.DbUtil.getcon(DbUtil.java:21)
at com.dbUtil.T.main(T.java:11)
的错误:
下面是关于tomcat/conf/context.xml的配置:
 
Java code
<Resource
        name="jdbc/sqlserver" 
        auth="Container" 
        type="javax.sql.DataSource"
        maxActive="50"
        maxIdle="30" 
        maxWait="10000" 
        logAbandoned="true" 
        username="sa" 
        password="SQL2005" 
        driverClassName="com.microsoft.jdbc.sqlserver.SQLServerDriver"
        url="jdbc:microsoft:sqlserver://localhost:1433;databasename=blog"/>


然后是web。xml的配置:
XML code
<description>DBConnection</description>
        <res-ref-name>jdbc/sqlserver</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
    </resource-ref>


然后是使用:
Java code
Context ctx = new InitialContext();
            //获取连接池对象
            DataSource dSource = (DataSource) ctx.lookup("java:comp/env/jdbc/sqlserver");
            con = dSource.getConnection();

出错是DataSource dSource = (DataSource) ctx.lookup("java:comp/env/jdbc/sqlserver");
这行代码

------解决方案--------------------
你有没有把sqlserver的JDBC驱动包放到tomcat的lib目录下面?
------解决方案--------------------
那段<Resource... 的配置放在哪了,如果是eclipse工程,要放在META-INF目录下