柏松的网络日志

Tomcat 4.1报Cannot create resource instance

关键词： Tomcat    UserDatabase                                          

环境：
    Windows XP sp2
    JDK 1.5.0_12
    Tomcat 4.1.27

这几天使用的一个环境中，有一个内嵌的Tomcat 4.1.27，其启动时报错

GlobalResourcesLifecycleListener: Exception processing Global JNDI Resources
javax.naming.NamingException: Cannot create resource instance
 at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:189)
 at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
    ......
Starting service Catalina
Apache Tomcat/4.1.27
javax.naming.NamingException: Cannot create resource instance
 at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:189)
 at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
 at org.apache.naming.NamingContext.lookup(NamingContext.java:834)
    ......
UserDatabaseRealm[Catalina]: Exception looking up UserDatabase under key UserDatabase
javax.naming.NamingException: Cannot create resource instance
 at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:189)
 at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
 at org.apache.naming.NamingContext.lookup(NamingContext.java:834)
    ......

查了网上的一些文章，大概判断出是由于%TOMCAT_HOME%\conf\server.xml中的以下片段引发的问题：

        <Resource name="UserDatabase" auth="Container" type="org.apache.catalina.UserDatabase" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" pathname="conf/tomcat-users.xml"/>

把以上片段改写为以下形式，问题解决。自己也不明白是怎么回事。

    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
       description="User database that can be updated and saved">
    </Resource>
    <ResourceParams name="UserDatabase">
      <parameter>
        <name>factory</name>
        <value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
      </parameter>
      <parameter>
        <name>pathname</name>
        <value>conf/tomcat-users.xml</value>
      </parameter>
    </ResourceParams>
    </GlobalNamingResources>
     
   
   

【作者: 柏松】【访问统计:】【2007年08月14日 星期二 13:54】【注册】【打印】