Question

我正在为我的项目编写一个mocha测试。测试应该涵盖ajax请求的输出，因此我创建了一个带节点的简单HTTP服务器。

这是当前的代码：

const http = require('http');
const server = http.createServer(function(req, res) {
  res.write('test');
});

const port = 5555;

process.on('uncaughtException', function(err) {
  console.log("Unhandled Exception, shutting down Server ...")
  server.close();
  console.log("Server closed!");
  console.log(err);
  process.exit(1);
});

process.on('SIGTERM', function() {
  console.log("Termination called, shutting down Server ...");
  server.close();
  console.log("Server closed!");
  process.exit(1);
});

server.listen('success', function(req, res) {
  res.writeHead(200, {
    "Content-Type": "application/json"
  });
  res.write(JSON.stringify({
    success: true,
    message: "Form success!"
  }));
  res.close();
});

server.listen('fail', function(req, res) {
  res.writeHead(200, {
    "Content-Type": "application/json"
  });
  res.write(JSON.stringify({
    success: false,
    message: "Form fail!"
  }));
  res.close();
});

server.listen(port);
console.log("Server running on Port: " + port);

现在由于某种原因，即使没有使用端口，它总是会抛出EADDRINUSE错误。我杀死了所有node / nodejs进程（没有任何），搜索使用端口（lsof -i tcp：5555）的程序，该程序没有发回任何内容，甚至没有任何重新启动机器差。

这是终端的输出：

Server running on Port: 5555
Unhandled Exception, shutting down Server ...
Server closed!
{ Error: listen EADDRINUSE success
    at Object.exports._errnoException (util.js:1022:11)
    at exports._exceptionWithHostPort (util.js:1045:20)
    at Server._listen2 (net.js:1249:19)
    at listen (net.js:1298:10)
    at Server.listen (net.js:1382:7)
    at Object.<anonymous> (/home/dominik/Documents/workspace/jelly/test/test-server.js:23:8)
    at Module._compile (module.js:571:32)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
  code: 'EADDRINUSE',
  errno: 'EADDRINUSE',
  syscall: 'listen',
  address: 'success',
  port: -1 }
npm ERR! Test failed.  See above for more details.

我当然试图搜索解决方案，但我发现只是使用相同的命令杀死服务器。提前致谢

Answer 1

您没有正确使用http模块。使用语句server.listen('success',...)，你对{socket}“成功”starting a UNIX socket server没有任何意义。

以下是http服务器根据请求的网址返回不同响应的示例。我建议您阅读此tutorial。

const http = require('http');

const server = http.createServer(function (req, res) {
    res.writeHead(200, {
      'Content-Type': 'application/json',
    });
    var responseBody = {};
    if (req.url === '/success') {
      responseBody = {
        success: true,
        message: "Form success!"
      };
    }
    if (req.url === '/fail') {
      responseBody = {
        success: false,
        message: "Form fail!"
      };
    }
    res.write(JSON.stringify(responseBody));
    res.end();
  });

const port = 5555;

process.on('uncaughtException', function (err) {
  console.log("Unhandled Exception, shutting down Server ...")
  server.close();
  console.log("Server closed!");
  console.log(err);
  process.exit(1);
});

process.on('SIGTERM', function () {
  console.log("Termination called, shutting down Server ...");
  server.close();
  console.log("Server closed!");
  process.exit(1);
});


server.listen(port, function () {
  console.log("Server running on Port: " + port);
});

测试：

curl http://localhost:5555/success
curl http://localhost:5555/fail

节点HTTP服务器EADDRINUSE

1 个答案: