Node.js POST 导致 [错误:套接字挂断] 代码:'ECONNRESET' [英] Node.js POST causes [Error: socket hang up] code: 'ECONNRESET'

问题描述

我创建了一个示例将数据发布到休息服务，我发现当我有非 ascii 或非拉丁字符(请参阅 data.firstName)时，我使用 TEST-REST.js 的发布请求将抛出

I created a sample to post data to a rest services and I found out that when I have non-ascii or non-latin character (please see data.firstName), my post request using TEST-REST.js will throw

错误:{[错误:套接字挂断]代码:'ECONNRESET'}.

error: { [Error: socket hang up] code: 'ECONNRESET' }.

// TEST-REST.js
var http = require('http');

var data = JSON.stringify({
  firstName: 'JoaquÌn',
});

var options = {
  host: '127.0.0.1',
  port: 3000,
  path: '/users',
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Content-Length': data.length
  }
};

var req = http.request(options, function(res) {
  var result = '';

  res.on('data', function(chunk) {
    result += chunk;
  });

  res.on('end', function() {
    console.log(result);
  });
});

req.on('error', function(err) {
  console.log(err);
});

req.write(data);
req.end();

在我的休息服务中，它抛出了这样的错误:

and on my rest services, it throw me error like this:

SyntaxError: Unexpected end of input Sun Sep 08 2013 23:25:02 GMT-0700 (PDT) -     at Object.parse (native)
    at IncomingMessage.<anonymous> (/Volumes/Data/Program_Data/GitHub/app/node_modules/express/node_modules/connect/lib/middleware/json.js:66:27) info    at IncomingMessage.EventEmitter.emit (events.js:92:17)
    at _stream_readable.js:920:16 : - - - [Mon, 09 Sep 2013 06:25:02 GMT] "POST /users HTTP/1.1" 400 - "-" "-"
    at process._tickDomainCallback (node.js:459:13)

如果我将 firstName 值从 'JoaquÌn' 替换为 'abc'，一切正常.我想我缺少一些东西来支持或逃避以使其发挥作用.

if I replace firstName value from 'JoaquÌn' to 'abc', everything works just fine. I think I'm missing something to support or escape to make it work.

有人知道我如何解决这个问题吗?我还尝试了以下操作:require('querystring').escape(model.givenName)，它可以工作，但我不满意.

does anyone have any idea how I solve this problem? I also tried following: require('querystring').escape(model.givenName), and it works but I'm not happy with it.

更新我发现如果我注释掉:app.use(express.bodyParser());，错误就会消失.

UPDATED I found out that if I comment out: app.use(express.bodyParser());, the error disappears.

推荐答案

这是 node 的问题，不是 express 的问题.https://github.com/visionmedia/express/issues/1749

This is node's issue, not express's issue. https://github.com/visionmedia/express/issues/1749

解决，改自

'内容长度':数据长度

'Content-Length': data.length

到

'Content-Length': Buffer.byteLength(data)

'Content-Length': Buffer.byteLength(data)

经验法则

当你想找到字符串的内容长度时，总是使用Buffer.byteLength()

Always use Buffer.byteLength() when you want to find the content length of strings

更新

我们还应该在服务器端优雅地处理错误，通过添加中间件来处理它来防止崩溃.

We also should handle error gracefully on server side to prevent crashing by adding middleware to handle it.

app.use(function (error, req, res, next) {
  if (!error) {
    next();
  } else {
    console.error(error.stack);
    res.send(500);
  }
});

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