重装了一下系统，原来做的东东报错，高手看看

Question

java.sql.SQLException: [Microsoft][ODBC SQL Server Driver][DBNETLIB]一般性网络错误。请检查网络文档。
at sun.jdbc.odbc.JdbcOdbc.createSQLException(Unknown Source)
at sun.jdbc.odbc.JdbcOdbc.standardError(Unknown Source)
at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcConnection.initialize(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at ConDB.<init>(ConDB.java:16)//******
at agentcopepanel.<init>(agentcopepanel.java:231)//******
at TreeListener.valueChanged(TreeListener.java:25)//******
at javax.swing.JTree.fireValueChanged(Unknown Source)
at javax.swing.JTree$TreeSelectionRedirector.valueChanged(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(Unknown Source)
at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(Unknown Source)
at javax.swing.JTree.setSelectionPath(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelectionImpl(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(Unknown Source)
at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(Unknown Source)
at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)就是加注示的三行有错，

Answer 1

ConDB.javaimport java.sql.*;import sun.jdbc.odbc.JdbcOdbcDriver;public class ConDB { private Connection conn;
private PreparedStatement pstmt;
private Statement stmt;
private ResultSet rs;
public ConDB() throws Exception {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url = "jdbc:odbc:MainCall";
String user = "sa";
String pwd = "";
conn = DriverManager.getConnection(url,user,pwd);//******
}
public PreparedStatement getpstmt(String sql,int i,int j)throws Exception {
pstmt = conn.prepareStatement(sql,i,j);
return pstmt;
}
public ResultSet getpstmt(String sql)throws Exception {
pstmt = conn.prepareStatement(sql);
rs =pstmt.executeQuery();
return rs;
}
public ResultSet getstmt(String sql) throws Exception{
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
return rs;
}
// public ResultSet getpstmtrs() throws Exception{
// ResultSet rs =pstmt.executeQuery();
// return rs;
// }
// public ResultSet getstmtrs(String sql) throws Exception{
// ResultSet rs =stmt.executeQuery(sql);
// return rs;
// }
}

Answer 2

没贴出其它两个文件，太长了就是这个ConDB.java有错不知道怎么解决这个问题系统重做的，SQL重装了，eclipse没重装,数据源也建了，库也导入了，SQL中的安全性也改为SQL Server和window

Answer 3

你的包都有吗？
得装后，JDK还在原来的地方吗？

Answer 4

谢谢大家了，我自己搞定了，重装后，jdk要访问网络，我给屏蔽了，我允许它访问网络，就ok了