利用PrintStream字节打印流将异常信息输出到外部文件

package com.yd.printstream;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.text.SimpleDateFormat;
import java.util.Date;

public class PrintStreamTest {

	public static void main(String[] args) throws FileNotFoundException {
		try {
			int[] arr=new int[-1];
		} catch (Exception e) {
			Date d=new Date();
			SimpleDateFormat sdf=new SimpleDateFormat("yyyy年MM月dd日hh:mm:ss SS");
			String line = sdf.format(d);
			PrintStream ps=new PrintStream(new FileOutputStream("E:/ydxy/后端/练习/se-29/log.txt"));
			ps.println(line);
			e.printStackTrace(ps);
			ps.close();
		}
	}

}

输出结果如下：