java 获取报错信息

java打印报错信息：

StackTraceElement [] messages=e.getStackTrace();

int length=messages.length;
StringBuffer error = new StringBuffer();
for(int i=0;i<length;i++){
error.append("ClassName:"+messages[i].getClassName()+"\n");
error.append("getFileName:"+messages[i].getFileName()+"\n");
error.append("getLineNumber:"+messages[i].getLineNumber()+"\n");
error.append("getMethodName:"+messages[i].getMethodName()+"\n");
error.append("toString:"+messages[i].toString()+"\n");
}