将异常(getStackTrace)转化成String

方法一：

private static String getStackMsg(Exception e) {

        StringBuffer sb = new StringBuffer();
        StackTraceElement[] stackArray = e.getStackTrace();
        for (int i = 0; i < stackArray.length; i++) {
            StackTraceElement element = stackArray[i];
            sb.append(element.toString() + "\n");
        }
        return sb.toString();
    }

    private static String getStackMsg(Throwable e) {

        StringBuffer sb = new StringBuffer();
        StackTraceElement[] stackArray = e.getStackTrace();
        for (int i = 0; i < stackArray.length; i++) {
            StackTraceElement element = stackArray[i];
            sb.append(element.toString() + "\n");
        }
        return sb.toString();
    }

方法二:

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";
        }
    }
}