用eclipse写java连接SQLServer数据库_基于eclipse+sqlserver的

package cn.com.reddiamond.db;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/**
* 数据库连接管理类
*/
public class ConnectManager {

private static Connection con;

private ConnectManager() {}

public static Connection getConnection() throws SQLException {
if (con != null && !con.isClosed())// 不为空且没关闭
return con;
//由首选项的设置获得连接
String className = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
String url = "jdbc:sqlserver://localhost:1433;";
String username = "root";
String password = "1234567";
//或 String url="jdbc:sqlserver://localhost:1433;database=yourdatabasename;user=root;password=1234567";
// 生成一个数据库连接
try {
Class.forName(className);
con = DriverManager.getConnection(url, username, password);
//或 con=DriverManager.getconnection(url);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
return con;
}

}

注意你用的驱动程序不同时,className的写法不一样,"com.microsoft.jdbc.sqlserver.SQLServerDriver".要根据你的驱动中的实际名称改一下.