package wu;import java.sql.*;public class jdbc {  public jdbc() {  } Connection conn = null ; String re = "" ; //設置你的數據庫ip String dbip = "127.0.0.1" ; //設置你的數據庫用戶名和密碼： String use = "" ; String pass = "" ;  public java.sql.Connection getConn(){    try{     Class.forName("org.gjt.mm.mysql.Driver").newInstance();     String url ="jdbc:mysql://"+dbip+":3306/"+use+"?user="+use+"&password="+pass+"&useUnicode=true&characterEncoding=gb2312" ;     conn= DriverManager.getConnection(url);    }    catch(Exception e){    e.printStackTrace();    }    return this.conn ;  }  public String ex_chinese(String str){     if(str==null){     str  ="" ;     }     else{         try {        str = new String(str.getBytes("iso-8859-1"),"gb2312") ;         }         catch (Exception ex) {         }     }     return str ;  } public String gettime() {    String datestr =  "" ;    try {    java.text.DateFormat df = new java.text.SimpleDateFormat("yyyy年MM月dd日 HH點ss分") ;    java.util.Date date = new java.util.Date() ;    datestr = df.format(new java.util.Date()) ;    }    catch (Exception ex) {    }    return datestr ;  }}