package business;import java.sql.*;public class DBUtil {String Connstr = "";Connection Conn = null;Statement stmt = null;//初始化數據庫連接；public DBUtil(){try{init();}catch(Exception e){System.out.print("DBUtil:" + e.getMessage());}}public void init() throws Exception {try{Class.forName("net.sourceforge.jtds.jdbc.Driver").newInstance(); Connstr = "jdbc:jtds:sqlserver://localhost/Web";Conn = DriverManager.getConnection(Connstr,"java_user","java_user");Conn.setAutoCommit(true);stmt = Conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);}catch(Exception e){System.out.print("DBUtil Init:" + e.getMessage());}}//查詢返回結果集public ResultSet Execute(String sql) throws Exception{ResultSet rsC = null;try{rsC = stmt.executeQuery(sql);}catch(Exception e){System.out.println("DBUtil->Execute:" + e.getMessage());}return rsC;}//執行SQL語句返回影響行數public int Execute(String sql,int iR) throws Exception{iR = stmt.executeUpdate(sql);return iR;}//執行插入public int Insert(String sql) throws Exception{int intTemp = 0 ;intTemp = stmt.executeUpdate(sql);return intTemp;}//執行更新public int Update(String sql) throws Exception{int intTemp = 0 ;intTemp = stmt.executeUpdate(sql);return intTemp;}//銷毀public void destroy() {try{stmt.close();Conn.close();}catch(Exception e){System.out.print("DBUtil destroy:" + e.getMessage());}} }

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轉載于:https://www.cnblogs.com/blackice/archive/2012/08/01/2618275.html

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