Question

当我在不使用npm start的情况下运行vs代码调试器时，它似乎托管了我的应用，因为我可以在Chrome中浏览它而不运行npm start。我的应用程序在端口3000上，我的调试器在端口5858上。今天早些时候没有这个问题。运行我的angular universal app时，我得到this error，然后运行我的调试器来调试node.js后端，因为两个进程正在尝试使用相同的端口。这意味着我无法通过使用GUI来触发我的后端功能，因此很难测试后端。为什么调试我的应用程序似乎托管它？

这是我的launch.json文件：

{
    "version": "0.2.0",
    "configurations": [{
        "name": "Launch",
        "type": "node2",
        "request": "launch",
        "program": "${workspaceRoot}/src/server.ts",
        "stopOnEntry": false,
        "skipFiles": [
            "node_modules/**/*.js"
        ],
        "args": [],
        "cwd": "${workspaceRoot}",
        "preLaunchTask": null,
        "runtimeExecutable": null,
        "runtimeArgs": [
            "--nolazy"
        ],
        "env": {
            "NODE_ENV": "development"
        },
        "externalConsole": false,
        "sourceMaps": true,
        "outFiles": ["${workspaceRoot}/dist/**/*.js"],
        "address": "localhost",
        "port": 5858
    }, {
        "name": "Attach",
        "type": "node2",
        "request": "attach",
        "port": 5858,
        "address": "localhost",
        "restart": false,
        "sourceMaps": false,
        "outDir": null,
        "localRoot": "${workspaceRoot}",
        "remoteRoot": null
    }, {
        "name": "Attach to Process",
        "type": "node2",
        "request": "attach",
        "processId": "${command.PickProcess}",
        "port": 5858,
        "sourceMaps": false,
        "outDir": null
    }]
}

当我没有使用npm start托管我的应用时，这是调试控制台：

node --inspect=5858 --debug-brk --nolazy dist/server/index.js 
Debugger listening on port 5858.
Warning: This is an experimental feature and could change at any time.
Debugger attached.
slimy sam
slimy sam
Listening on: http://localhost:3000

当我使用npm start托管我的应用时，这是调试控制台：

node --inspect=5858 --debug-brk --nolazy dist/server/index.js 
Debugger listening on port 5858.
Warning: This is an experimental feature and could change at any time.
Debugger attached.
slimy sam
events.js:160
      throw er; // Unhandled 'error' event
      ^
Error: listen EADDRINUSE :::3000
    at Object.exports._errnoException (util.js:1026:11)
    at exports._exceptionWithHostPort (util.js:1049:20)
    at Server._listen2 (net.js:1257:14)
    at listen (net.js:1293:10)
    at Server.listen (net.js:1389:5)
    at EventEmitter.listen (/private/var/root/vepo/node_modules/express/lib/application.js:617:24)
    at Object.<anonymous> (/private/var/root/vepo/dist/server/index.js:57532:18)
    at Object.<anonymous> (/private/var/root/vepo/dist/server/index.js:57537:30)
    at __webpack_require__ (/private/var/root/vepo/dist/server/index.js:27:30)
    at /private/var/root/vepo/dist/server/index.js:93:18
Waiting for the debugger to disconnect...

编辑：当我在launch.json中将它设置为false时，它也会在进入时停止调试器，所以也许我的vs代码就坏了。我可能需要重新安装它，虽然我试图避免它，因为我有很多扩展。

当我将应用程序运行的端口更改为4000时，我在调试时得到了相同的错误，但是对于4000：

events.js:160
      throw er; // Unhandled 'error' event
      ^
Error: listen EADDRINUSE :::4000
    at Object.exports._errnoException (util.js:1026:11)
    at exports._exceptionWithHostPort (util.js:1049:20)
    at Server._listen2 (net.js:1257:14)
    at listen (net.js:1293:10)
    at Server.listen (net.js:1389:5)
    at EventEmitter.listen (/private/var/root/vepo/node_modules/express/lib/application.js:617:24)
    at Object.<anonymous> (/private/var/root/vepo/dist/server/index.js:57532:18)
    at Object.<anonymous> (/private/var/root/vepo/dist/server/index.js:57537:30)
    at __webpack_require__ (/private/var/root/vepo/dist/server/index.js:27:30)
    at /private/var/root/vepo/dist/server/index.js:93:18
Waiting for the debugger to disconnect...

Answer 1

似乎你有两个应用程序在同一个端口上运行，没有1.e 3000.

使用此命令

netstat -tulpn

显示服务器上的所有进程，然后将kill与进程ID一起使用。与kill processid一样。

运行VS Code调试器似乎托管我的Web应用程序

1 个答案: