将异常的堆栈跟踪写入字符串

import java.io.StringWriter;

import java.io.PrintWriter;

/**来自 
 时代Java公众号 - N o w J a  v a . c o m**/

public class Main {

  public static void main(String[] args) {

    try {

      m1();

    }

    catch(MyException e) {

      String str = getStackTrace(e);


      // Print the stack trace to the standard output

      System.out.println(str);

    }

  }


  public static void m1() throws MyException {

    m2();/* 来 自 nowjava*/

  }


  public static void m2() throws MyException {

    throw new MyException("Some error has occurred.");

  }


  public static String getStackTrace(Throwable e) {

    StringWriter strWriter = new StringWriter();

    PrintWriter printWriter = new PrintWriter(strWriter);

    e.printStackTrace(printWriter);


    // Get the stack trace as a string

    String str = strWriter.toString();


    return str;

  }

}

class MyException extends Exception {

  public MyException() {

    super();

  }


  public MyException(String messa