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)