Question

在这里，我有一个应用程序，下面有多个软件包，我不想将日志写入一个文件。比如说：

   src/packageA/snmp.go
   src/packageA/http.go

我想将日志从snmp.go写入/var/log/snmp.log和http.go到/var/log/http.log

詹姆斯

Answer 1

如果您使用logrus，则可能有用https://github.com/rifflock/lfshook

Answer 2

runtime.Caller(0)应该可以获得这些信息。例如：

void MyGraphicsScene :: drawBackground(QPainter * p, const QRectF & r)
{
   if (_isInBackgroundUpdate == false)  // anti-infinite-recursion guard
   {
      QGraphicsScene::drawBackground(p, r);

      const QRectF rect = sceneRect();

      p->fillRect(rect, backgroundBrush().color());

      // Render the scene's static objects as pixels 
      // into the QGraphicsView's view-background-cache
      this->_isInBackgroundUpdate = true;  // anti-infinite-recursion guard
      render(p, sceneRect());
      this->_isInBackgroundUpdate = false;
   }
}

// overridden to draw only the items appropriate to our current
// mode (foreground items OR background items but not both!)
void MyGraphicsScene :: drawItems(QPainter *painter, int numItems, QGraphicsItem *items[], const QStyleOptionGraphicsItem options[], QWidget *widget)
{
   // Go through the items-list and only keep items that we are supposed to be
   // drawing in this pass (either foreground or background, depending)
   int count = 0;
   for (int i=0; i<numItems; i++)
   {
      const bool isItemBackgroundItem = (_backgroundItemsTable.find(items[i]) != _backgroundItemsTable.end());
      if (isItemBackgroundItem == this->_isInBackgroundUpdates) items[count++] = items[i];
   }

   QGraphicsScene::drawItems(painter, count, items, options, widget);
}

此示例将输出：

jsonParser.makeHttpRequest("http://192.168.1.4/android_connect/update11.php", 
"POST", params);
    }

这只是一个例子。 Try experimenting with a different integer parameter to runtime.Caller()如果这不起作用。

如何将日志从单独的包写入单独的文件

2 个答案: