package cn.stylefeng.guns.plcserver.tool;

import org.apache.log4j.Logger;

import java.io.PrintWriter;
import java.io.StringWriter;


public class LogUtil
{
	private static Logger log;
	
	static
	{
		log = Logger.getLogger(LogUtil.class);
	}
		
	/**
	 *  
	 * @title getTrace
	 * @description 输出异常详细信息
	 * @param t
	 * @return String 
	 * @author  ROC
	 */
	public  String getTrace(Throwable t)
	{
		StringWriter stringWriter = new StringWriter();
		PrintWriter writer = new PrintWriter(stringWriter);
		t.printStackTrace(writer);
		StringBuffer buffer = stringWriter.getBuffer();
		return "抛出异常详细:"+buffer.toString();
	}

	
	/**
	 * 输出标准日志
	 */
	public void outputFinalLog (String startStr, String expStr,String endStr)
	{
		StringBuffer logStr = new StringBuffer();
		logStr.append(startStr);
		//logStr.append("\r\n");
		if (expStr != null)
		{
			logStr.append(expStr);
			//logStr.append("\r\n");
		}
		logStr.append(endStr);
		logStr.append("\r\n");
		log.info(logStr.toString());
	}
	
}