Topic: 无法打开登录 'nysips' 中请求的数据库。登录失败。 |
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1.无法打开登录 'nysips' 中请求的数据库。登录失败。 | Copy to clipboard |
Posted by: am2000 Posted on: 2005-07-18 14:16 java.sql.SQLException: [Microsoft][SQLServer JDBC Driver][SQLServer]无法打开登录 'nysips' 中请求的数据库。登录失败。 at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source) at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processErrorToken(Unknown Source) at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReplyToken(Unknown Source) at com.microsoft.jdbc.sqlserver.tds.TDSLoginRequest.processReplyToken(Unknown Source) at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReply(Unknown Source) at com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown Source) at com.microsoft.jdbc.base.BaseConnection.getNewImplConnection(Unknown Source) at com.microsoft.jdbc.base.BaseConnection.open(Unknown Source) at com.microsoft.jdbc.base.BaseDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:525) at java.sql.DriverManager.getConnection(DriverManager.java:171) at db.Connect.getConnection(Connect.java:27) at db.Connect.displayDbProperties(Connect.java:44) at db.Connect.main(Connect.java:80) Error Trace in getConnection() : [Microsoft][SQLServer JDBC Driver][SQLServer]无法打开登录 'nysips' 中请求的数据库。登录失败。 Error: No active Connection 是什么原因? |
2.Re:无法打开登录 'nysips' 中请求的数据库。登录失败。 [Re: am2000] | Copy to clipboard |
Posted by: am2000 Posted on: 2005-07-18 14:17 测试程序 import java.*; public class Connect{ private java.sql.Connection con = null; private final String url = "jdbc:microsoft:sqlserver://"; private final String serverName= "localhost"; private final String portNumber = "1433"; private final String databaseName= "nysips"; private final String userName = "sa"; private final String password = "111111"; // Informs the driver to use server a side-cursor, // which permits more than one active statement // on a connection. private final String selectMethod = "cursor"; // Constructor public Connect(){} private String getConnectionUrl(){ return url+serverName+":"+portNumber+";databaseName="+databaseName+";selectMethod="+selectMethod+";"; } private java.sql.Connection getConnection(){ try{ Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver"); con = java.sql.DriverManager.getConnection(getConnectionUrl(),userName,password); if(con!=null) System.out.println("Connection Successful!"); }catch(Exception e){ e.printStackTrace(); System.out.println("Error Trace in getConnection() : " + e.getMessage()); } return con; } /* Display the driver properties, database details */ public void displayDbProperties(){ java.sql.DatabaseMetaData dm = null; java.sql.ResultSet rs = null; try{ con= this.getConnection(); if(con!=null){ dm = con.getMetaData(); System.out.println("Driver Information"); System.out.println("\tDriver Name: "+ dm.getDriverName()); System.out.println("\tDriver Version: "+ dm.getDriverVersion ()); System.out.println("\nDatabase Information "); System.out.println("\tDatabase Name: "+ dm.getDatabaseProductName()); System.out.println("\tDatabase Version: "+ dm.getDatabaseProductVersion()); System.out.println("Avalilable Catalogs "); rs = dm.getCatalogs(); while(rs.next()){ System.out.println("\tcatalog: "+ rs.getString(1)); } rs.close(); rs = null; closeConnection(); }else System.out.println("Error: No active Connection"); }catch(Exception e){ e.printStackTrace(); } dm=null; } private void closeConnection(){ try{ if(con!=null) con.close(); con=null; }catch(Exception e){ e.printStackTrace(); } } public static void main(String[] args) throws Exception { Connect myDbTest = new Connect(); myDbTest.displayDbProperties(); } } |
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