得到printStackTrace的内容

private static String getStackMsg(Throwable e) {

StringWriter sw=null;

PrintWriter pw=null;

String errorContent=null;

try{

sw = new StringWriter();

pw=new PrintWriter(sw, true);

e.printStackTrace(pw);

errorContent=sw.toString();

}finally{

try{

if(null!=pw){

pw.close();

}

if(null!=sw){

sw.close();

}

}catch(Exception ex){

logger.error("<<<<<<<<<".concat(ex.getMessage()), ex);

}

}

return errorContent;

}