sqlserver 连接测试
发布时间：2020-12-12 14:30:35 所属栏目：MsSql教程 来源：网络整理
导读：import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class DBConnection { public static Connection getConn(
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import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class DBConnection { public static Connection getConn() { String driverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver"; String user = ""; String password = ""; String dbName = ""; Connection con = null; String url = "jdbc:sqlserver:/**********:1433;databaseName=" + dbName; try { Class.forName(driverName).newInstance(); System.out.println("*******开始进行连接********"); con = DriverManager.getConnection(url,user,password); System.out.println("********连接数据库成功!***n"); } catch (Exception e) { System.err.println("连接数据库不成功"); e.printStackTrace(); } return con; } /** ?* 关闭连接 ?*? ?* @param conn ?* @param pre ?* @param rs ?*/ public static void closeConn(ResultSet rs,PreparedStatement pre,Connection conn) { ?try { ?if (conn != null) ? ?conn.close(); ?if (pre != null) ? ?pre.close(); ?if (rs != null) ? ?rs.close(); ?} catch (Exception e) { ?e.printStackTrace(); ?} } ? public static void main(String[] args) { /*try { System.out.println("测试数据库连接开始n"); Connection conn=DBConnection.getConn(); String sql1="select * from dbo.Se"; PreparedStatement pre = conn.prepareStatement(sql1); ResultSet rs=pre.executeQuery(); while(rs.next()){ System.out.println(rs.getString(1)); } System.out.println("测试数据库连接结束"); DBConnection.close(conn,pre,rs); } catch (Exception e) { e.printStackTrace(); }*/ } }
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