Question

intellij idea 下的项目 但数据连接配置在TOMCAT/CONF/SERVER.XML下

我用MYECLIPSE跑时正常 TOMCAT下有数据库连接包
但在IDEA下报错 求大师指导
Cannot create JDBC driver of class '' for connect URL 'null'
java.lang.NullPointerException
at sun.jdbc.odbc.JdbcOdbcDriver.getProtocol(JdbcOdbcDriver.java:507)
at sun.jdbc.odbc.JdbcOdbcDriver.knownURL(JdbcOdbcDriver.java:476)
at sun.jdbc.odbc.JdbcOdbcDriver.acceptsURL(JdbcOdbcDriver.java:307)
at java.sql.DriverManager.getDriver(DriverManager.java:253)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createConnectionFactory(BasicDataSource.java:1437)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1371)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
at org.nutz.dao.jdbc.Jdbcs.getExpert(Jdbcs.java:89)
at org.nutz.dao.impl.DaoSupport.setDataSource(DaoSupport.java:154)
at org.nutz.dao.impl.NutDao.<init>(NutDao.java:87)
at com.enterprise.foreground.IndexBean.<init>(IndexBean.java:36)
at com.enterprise.foreground.IndexAction.execute(IndexAction.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Answer 1

你tomcat连接数据库的配置文件的链接地址参数是否填写正确，另外你可以debug一下，就知道哪里为null了

追问

哥们 配置文件没有问题
我用MYECLISPE能跑
但用intellij idea 开发工具不能跑 平常习惯用这个开发工具了