关于Tomcat的设定文档
首先我在Tomcat的server.xml设定了数据源

<Resource name="NPIDB_NPI"

      auth="Container"

      type="javax.sql.DataSource"

      factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"

      testWhileIdle="true"

      testOnBorrow="true"

      testOnReturn="false"

      validationInterval="30000"

      timeBetweenEvictionRunsMillis="30000"

      maxActive="100"

      minIdle="10"

      maxWait="10000"

      initialSize="10"

      removeAbandonedTimeout="60"

      removeAbandoned="true"

      logAbandoned="true"

      minEvictableIdleTimeMillis="30000"

      jmxEnabled="true"

      jdbcInterceptors="org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer"

      username="plmwflow"

      password="plmwflow"

      driverClassName="oracle.jdbc.OracleDriver"

      url="jdbc:oracle:thin:@172.16.30.22:1521:pdmlink"/>

但是在Eclipse起动后就会把server.xml回复到没修改的状况
请教怎么能在eclipse里进行Tomcat文档的设定
------解决方案--------------------
你应该是用了Eclipse的tomcat插件，这样修改tomcat配置应该从Eclipse的这个插件的界面上进行修改。