获取异常的堆栈信息 工具类

import java.io.PrintWriter;

import java.io.StringWriter;

public class ExceptionUtil {

       /**

        * 获取异常的堆栈信息

        *

        * @param t

        * @return

        */

       public static String getStackTrace(Throwable t) {

              StringWriter sw = new StringWriter();

              PrintWriter pw = new PrintWriter(sw);

              try {

                     t.printStackTrace(pw);

                     return sw.toString();

              } finally {

                     pw.close();

              }

       }

}