在我的以下程序中,我尝试在 Windows 身份验证中使用 jdbc 连接 MSSQL Server。但是出现以下错误
import java.io.*;
import java.sql.*;
import java.util.GregorianCalendar;
import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
class Cms_truncate
{
public static void main(String[] args)
{
Calendar cal = new GregorianCalendar();
//String name="cmscim";
//String filename = "D:\\programs\\Tomcat 6.0\\webapps\\timescape\\canteen_scheduller\\CMS_CSV\\cms_cim\\"+ name+"-"+cal.get(Calendar.YEAR) +"-" +(cal.get(Calendar.MONTH)+1) + "-"+cal.get(Calendar.DATE)+".csv";
Connection conn = null;
String url = "jdbc:sqlserver://localhost:1433;databasename=CMS_TIMES_MAIN;integratedSecurity=true";
String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
String userName = "";
String password = "";
Statement stmt;
try
{
Class.forName(driver);//.newInstance();
conn = DriverManager.getConnection(url,userName,password);
String query = "select * from cim where sapId=10025331";
stmt = conn.createStatement();
int flag = stmt.executeUpdate(query);
System.out.println("flag = "+flag);
conn.close();
System.out.println("");
} catch (Exception e) {
e.printStackTrace();
}
}
}
我在 Windows 身份验证模式下使用 SQL Server。我是否需要在 Windows 身份验证中使用 jdbc 连接 MSSQL 进行其他设置。
错误:
com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host localhost, port 1433 has failed. Error: "Connection refused: connect. Verify the connection properties. Make sure that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port. Make sure that TCP connections to the port are not blocked by a firewall.".
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:190)
at com.microsoft.sqlserver.jdbc.SQLServerException.ConvertConnectExceptionToSQLServerException(SQLServerException.java:241)
at com.microsoft.sqlserver.jdbc.SocketFinder.findSocket(IOBuffer.java:2243)
at com.microsoft.sqlserver.jdbc.TDSChannel.open(IOBuffer.java:491)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1309)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:991)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:827)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1012)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at Cms_truncate.main(Cms_truncate.java:28)