stringutil.java

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package jaction.utility;

import java.io.*;
import java.util.*;

/**
 * 字符串处理工具类<br>
 * @author yanger
 * @version $Revision: 1.4.5.1 $ $Date: 2003-5-1 12:48:29 $
 */
 
public class StringUtil{

	/**
	 * iso-8859-1字符集名称
	 */
	 public static final String ISO_8859_1="iso-8859-1";
	/**
	 * GBK字符集名称
	 */
	 public static final String GBK="GBK";
	 /**
	 * GB2312字符集名称
	 */
	 public static final String GB2312="gb2312";

	/**
	 * 字符集转换
	 * @param s 要转换的字符串
	 * @param charSetName 字符集
	 * @param defaultCharSet 默认字符集
	 * @return String 转换字符串
	 */
	public static String CharSetConvert(String s,String charSetName,String defaultCharSetName){
		String newString=null;
		try{
			newString = new String(s.getBytes(charSetName),defaultCharSetName);
		}catch(UnsupportedEncodingException  e){
			FileUtil.log("StringUtil.CharSetConvert() UnsupportedEncodingException"+e);
			SysLogger.error("StringUtil","CharSetConvert","UnsupportedEncodingException"+e);
		}catch(NullPointerException nulle){
			FileUtil.log("StringUtil.CharSetConvert() NullPointerException"+nulle);
			SysLogger.error("StringUtil","CharSetConvert","NullPointerException"+nulle);
		}
		return newString;
	}  

	/**
	 * 把Exception堆栈信息转化为String.
	 * <li><i>StackTraceElement[] ste = e.getStackTrace(); 应用于jdk1.4
	 * @param Exception 异常堆栈
	 * @return String 异常信息
	 */
	public static String ObjectToString(Exception e){
		StringBuffer sb = new StringBuffer();
		/*
		StackTraceElement[] ste = e.getStackTrace();
		sb.append(e).append("\n");
		for(int i = 0; i < ste.length; i++){
			sb.append(ste[i].toString()).append("\n");
		}
		*/
		sb.append(e.getMessage()).append("\n");

		return sb.toString();
	}
}