Question

我正在运行SSR React node.js服务器，我需要一些有关如何解决问题的建议。我的node.js服务器崩溃/重新启动，原因是未定义窗口等错误，而不仅仅是注销并打印出500条错误消息。

这是我的信息流：

Collection {#499 ▼
  #items: array:22 [▼
    0 => tag {#524 ▶} //parent1
    1 => tag {#525 ▶} //a
    2 => tag {#526 ▶} //b
    3 => tag {#527 ▶} //d
    4 => tag {#528 ▶} //parent2
    5 => tag {#529 ▶} //c
    6 => tag {#530 ▶} //f
    7 => tag {#530 ▶} //parent3
    8 => tag {#530 ▶} //e
  ]
}

我以为我的钓钩会出现那些错误，但显然不是，有人可以帮助我指出正确的方向吗？

更新：1 我目前正在尝试：

  try {
  .......
  .......
  .......

    const markupStream = renderToNodeStream(
      <Provider store={store}>
        <ConnectedRouter history={history} location={context}>
          <App/>
        </ConnectedRouter>
      </Provider>
    );

    if (context.url) {
      return res.redirect(301, context.url)
    }

    return fs.createReadStream(htmlFilePath)
      .pipe(htmlReplace('#root', markupStream))
      .pipe(replaceStream('__SERVER_DATA__', serialize(store.getState())))
      .pipe(res);
  } catch (err) {
    const errMarkup = renderToNodeStream(
      <Provider store={store}>
        <ConnectedRouter history={history} location={context}>
          <Error500 error={err}/>
        </ConnectedRouter>
      </Provider>
    );

    logger.log({
      level: 'error',
      message: `Rendering ${req.originalUrl} fallback to Error render method`,
      ...{
        errorMessage: err.message,
        stack: err.stack
      }
    });

    return fs.createReadStream(htmlFilePath)
      .pipe(htmlReplace('#root', errMarkup))
      .pipe(res.status(500));
  } finally {
    logger.info(`Request finished ${req.originalUrl} :: ${res.statusCode}`)
    end({ route: path, componentName: componentNames[0], code: res.statusCode })
    logger.profile(profileMsg);
  }

Answer 1

您需要先创建流，然后再将其返回，以便使用其错误回调函数：

var readStream = fs.createReadStream(filename);
  readStream.on('error', function(err) {
    res.end(err);
  });
return readStream

Node.js createReadStream错误处理

1 个答案: