src/util/Info.java

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package util;



import java.io.UnsupportedEncodingException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Random;

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.context.support.WebApplicationContextUtils;

public class Info {
	


	public synchronized static String getID() {
		Random random = new Random();
		StringBuffer ret = new StringBuffer(20);
		String rand = String.valueOf(Math.abs(random.nextInt()));
		ret.append(getDateStr());
		ret.append(rand.substring(0,6));
		
		return ret.toString();
	} 
	
	public synchronized static String subStr(String source,int length) {
		if(source==null)source="";
		if(source.length()>length)
		{
			source=source.substring(0,length)+"...";
		}
		
		return source;
	} 
	
	
	public static String getStrReplaceAll(String str){
		String ch = "";
		if(str!=null|!str.equals("")){
			ch = str.replaceAll("'","");
			ch = str.replaceAll("\"","\\\\\"");
			ch = ch.replaceAll("<", "&lt;");
			ch=  ch.replaceAll(">", "&gt;");
			ch=  ch.replaceAll(" ", "&nbsp;");
			ch = ch.replaceAll("\n","<br>");
			
		}
		return ch;
	}
	public static String getDateStr(){
		String dateString="";
		try{//yyyyMMddHHmmss
		java.text.SimpleDateFormat formatter=new java.text.SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
		java.util.Date currentTime_1=new java.util.Date();
		dateString=formatter.format(currentTime_1);
		}catch(Exception e){