Java如何将Exception.printStackTrace()转换为String输出

package com.test1;

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

public class T010 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			String[] arr = {"111", "222"};
			arr[2] = "fff";
		} catch (Exception e) {
			String info = getErrorInfoFromException(e);
			System.out.println(info);
		}
	}
	
	public static String getErrorInfoFromException(Exception e) {
		try {
			StringWriter sw = new StringWriter();
			PrintWriter pw = new PrintWriter(sw);
			e.printStackTrace(pw);
			return "\r\n" + sw.toString() + "\r\n";
		} catch (Exception e2) {
			return "bad getErrorInfoFromException";
		}
	}
}

控制台上输出的消息如下所示：
java.lang.ArrayIndexOutOfBoundsException: 2
	at com.test1.T010.main(T010.java:14)

评论

1 楼 leelun 2013-08-01  

One can use the following method to convert an Exception stack trace to String. This class is available in Apache commons-lang-2.2.jar

org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(Throwable)