codechange.java

JSP+SQL SERVER,酒店管理系统

/*
 * Created on 2007-6-17
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package codechange;

/**
 * @author yongyong
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class Codechange {
	 public Codechange() {
	    }
	public static void main(String[] args) {
	}
	public static String toUnicode(String str){
   	 try{
    		if(str==null)
    		  str="";
    		else
    		  str=new String(str.getBytes("GB2312"),"ISO-8859-1");
    	}catch(Exception e){System.out.println("In DealString toGB");e.printStackTrace();}
        return str;
    }
    public static String toGB(String str){
   	try{
   		if(str==null)
   		  str="";
   		else
   		  str=new String(str.getBytes("ISO-8859-1"),"GB2312");
   	}catch(Exception e){System.out.println("In DealString toGB");e.printStackTrace();}
       return str;
    }
    public static String replace(String source,String oldstr,String newstr){
   	 StringBuffer output=new StringBuffer();
   	 int lengthofSource=source.length();
   	 int lengthofOldstr=oldstr.length();
   	 int posStart=0;
   	 int pos;
   	 while((pos=source.indexOf(oldstr,posStart))>=0){
   		 output.append(source.substring(posStart,pos));
   	     output.append(newstr);
   	     posStart=pos+lengthofOldstr;
   	 }
   	 if(posStart<lengthofSource){
   		 output.append(source.substring(posStart));
   	 }
   	 return output.toString();
    }
    public static String getDateTime(){
   	 java.text.SimpleDateFormat f=new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
   	 String time=f.format(new java.util.Date());
   	 return time;
    }
  
}