发布请求中的负载在node.js函数中不可用
我刚刚开始讨论三个新的框架/产品：MongoDB，NodeJS和AngularJS。
我试图完成的是有一个简单的表单提交一个值，并将该值写入数据库。 我已经到了一个地步，在我的Angular应用程序中使用$ http.post提交了我的值，并且确实调用了我的node.js后端函数，但未定义的是我的req参数（se下面）。 从Google Chromesnetworking监视器，我可以看到一个POST请求被提交，并且有效载荷包含我input的值。
我真的不明白为什么它在接收端不可用。 请帮忙。
现在为一些片段（不是整个文件）：
server.js：
var express = require('express'), menu = require('./routes/menu'), http = require('http'), app = express(), httpServer = http.createServer(app), bodyParser = require('body-parser'); app.use(bodyParser.json()); app.set('port', 3000); app.use(express.static(__dirname)); app.get('/menuItems', menu.getMenuItems); app.post('/menuItems', function(req, res) { console.log(req); }); httpServer.listen(app.get('port'), function () { console.log("Express server listening on port %s.", httpServer.address().port); }); menu.js：
exports.addMenuItem = function(req, res) { var menuItem = req.body; <===req.body is undefined console.log('Adding menuItem: ' + JSON.stringify(menuItem)); db.collection('menuItems', function(err, collection) { collection.insert(menuItem, {safe:true}, function(err, result) { if (err) { res.send({'error':'An error has occurred'}); } else { console.log('Success: ' + JSON.stringify(result[0])); res.send(result[0]); } }); });
};
app.js：
(function () { var app = angular.module('jdk', []); app.controller('MenuItemController', function ($scope, $http) { $scope.processForm = function () { $http.post('/menuItems', JSON.stringify($scope.formData)) .success(function (data) { console.log(data); }); }; }); })();
我想我已经穹顶了，但显然不是。 我也尝试在我的server.js中安装和使用“body-paarser”，但结果是一样的。
当我的服务器崩溃时，它会转储这样的内容：
{ _readableState: { highWaterMark: 16384, buffer: [], length: 0, pipes: null, pipesCount: 0, flowing: false, ended: false, endEmitted: false, reading: false, calledRead: false, sync: true, needReadable: false, emittedReadable: false, readableListening: false, objectMode: false, defaultEncoding: 'utf8', ranOut: false, awaitDrain: 0, readingMore: false, oldMode: false, decoder: null, encoding: null }, readable: true, domain: null, _events: {}, _maxListeners: 10, socket: { _connecting: false, _handle: { fd: null, writeQueueSize: 0, owner: [Circular], onread: [Function: onread], reading: true }, _readableState: { highWaterMark: 16384, buffer: [], length: 0, pipes: null, pipesCount: 0, flowing: false, ended: false, endEmitted: false, reading: true, calledRead: true, sync: false, needReadable: true, emittedReadable: false, readableListening: false, objectMode: false, defaultEncoding: 'utf8', ranOut: false, awaitDrain: 0, readingMore: false, oldMode: false, decoder: null, encoding: null }, readable: true, domain: null, _events: { end: [Object], finish: [Function: onSocketFinish], _socketEnd: [Function: onSocketEnd], drain: [Object], timeout: [Function], error: [Object], close: [Object] }, _maxListeners: 10, _writableState: { highWaterMark: 16384, objectMode: false, needDrain: false, ending: false, ended: false, finished: false, decodeStrings: false, defaultEncoding: 'utf8', length: 0, writing: false, sync: false, bufferProcessing: false, onwrite: [Function], writecb: null, writelen: 0, buffer: [], errorEmitted: false }, writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 2496, _bytesDispatched: 157759, _pendingData: null, _pendingEncoding: '', server: { domain: null, _events: [Object], _maxListeners: 10, _connections: 6, connections: [Getter/Setter], _handle: [Object], _usingSlaves: false, _slaves: [], allowHalfOpen: true, httpAllowHalfOpen: false, timeout: 120000, _connectionKey: '4:0.0.0.0:3000' }, _idleTimeout: 120000, _idleNext: { _connecting: false, _handle: [Object], _readableState: [Object], readable: true, domain: null, _events: [Object], _maxListeners: 10, _writableState: [Object], writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 375, _bytesDispatched: 1410, _pendingData: null, _pendingEncoding: '', server: [Object], _idleTimeout: 120000, _idleNext: [Object], _idlePrev: [Circular], _idleStart: 1406644394348, parser: [Object], ondata: [Function], _paused: false, _httpMessage: null }, _idlePrev: { _idleNext: [Circular], _idlePrev: [Object] }, _idleStart: 1406644399010, parser: { _headers: [], _url: '', onHeaders: [Function: parserOnHeaders], onHeadersComplete: [Function: parserOnHeadersComplete], onBody: [Function: parserOnBody], onMessageComplete: [Function: parserOnMessageComplete], socket: [Circular], incoming: [Circular], maxHeaderPairs: 2000, onIncoming: [Function] }, ondata: [Function], _paused: false, _httpMessage: { domain: null, _events: [Object], _maxListeners: 10, output: [], outputEncodings: [], writable: true, _last: false, chunkedEncoding: false, shouldKeepAlive: true, useChunkedEncodingByDefault: true, sendDate: true, _headerSent: false, _header: '', _hasBody: true, _trailer: '', finished: false, _hangupClose: false, socket: [Circular], connection: [Circular], _headers: [Object], _headerNames: [Object], req: [Circular], locals: {} } }, connection: { _connecting: false, _handle: { fd: null, writeQueueSize: 0, owner: [Circular], onread: [Function: onread], reading: true }, _readableState: { highWaterMark: 16384, buffer: [], length: 0, pipes: null, pipesCount: 0, flowing: false, ended: false, endEmitted: false, reading: true, calledRead: true, sync: false, needReadable: true, emittedReadable: false, readableListening: false, objectMode: false, defaultEncoding: 'utf8', ranOut: false, awaitDrain: 0, readingMore: false, oldMode: false, decoder: null, encoding: null }, readable: true, domain: null, _events: { end: [Object], finish: [Function: onSocketFinish], _socketEnd: [Function: onSocketEnd], drain: [Object], timeout: [Function], error: [Object], close: [Object] }, _maxListeners: 10, _writableState: { highWaterMark: 16384, objectMode: false, needDrain: false, ending: false, ended: false, finished: false, decodeStrings: false, defaultEncoding: 'utf8', length: 0, writing: false, sync: false, bufferProcessing: false, onwrite: [Function], writecb: null, writelen: 0, buffer: [], errorEmitted: false }, writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 2496, _bytesDispatched: 157759, _pendingData: null, _pendingEncoding: '', server: { domain: null, _events: [Object], _maxListeners: 10, _connections: 6, connections: [Getter/Setter], _handle: [Object], _usingSlaves: false, _slaves: [], allowHalfOpen: true, httpAllowHalfOpen: false, timeout: 120000, _connectionKey: '4:0.0.0.0:3000' }, _idleTimeout: 120000, _idleNext: { _connecting: false, _handle: [Object], _readableState: [Object], readable: true, domain: null, _events: [Object], _maxListeners: 10, _writableState: [Object], writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 375, _bytesDispatched: 1410, _pendingData: null, _pendingEncoding: '', server: [Object], _idleTimeout: 120000, _idleNext: [Object], _idlePrev: [Circular], _idleStart: 1406644394348, parser: [Object], ondata: [Function], _paused: false, _httpMessage: null }, _idlePrev: { _idleNext: [Circular], _idlePrev: [Object] }, _idleStart: 1406644399010, parser: { _headers: [], _url: '', onHeaders: [Function: parserOnHeaders], onHeadersComplete: [Function: parserOnHeadersComplete], onBody: [Function: parserOnBody], onMessageComplete: [Function: parserOnMessageComplete], socket: [Circular], incoming: [Circular], maxHeaderPairs: 2000, onIncoming: [Function] }, ondata: [Function], _paused: false, _httpMessage: { domain: null, _events: [Object], _maxListeners: 10, output: [], outputEncodings: [], writable: true, _last: false, chunkedEncoding: false, shouldKeepAlive: true, useChunkedEncodingByDefault: true, sendDate: true, _headerSent: false, _header: '', _hasBody: true, _trailer: '', finished: false, _hangupClose: false, socket: [Circular], connection: [Circular], _headers: [Object], _headerNames: [Object], req: [Circular], locals: {} } }, httpVersion: '1.1', complete: false, headers: { host: 'localhost:3000', connection: 'keep-alive', 'content-length': '19', accept: 'application/json, text/plain, */*', origin: 'http://localhost:3000', 'user-agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.125 Safari/537.36', 'content-type': 'application/json;charset=UTF-8', referer: 'http://localhost:3000/admin/', 'accept-encoding': 'gzip,deflate,sdch', 'accept-language': 'en,da;q=0.8,nb;q=0.6,sv;q=0.4' }, trailers: {}, _pendings: [], _pendingIndex: 0, url: '/menuItems', method: 'POST', statusCode: null, client: { _connecting: false, _handle: { fd: null, writeQueueSize: 0, owner: [Circular], onread: [Function: onread], reading: true }, _readableState: { highWaterMark: 16384, buffer: [], length: 0, pipes: null, pipesCount: 0, flowing: false, ended: false, endEmitted: false, reading: true, calledRead: true, sync: false, needReadable: true, emittedReadable: false, readableListening: false, objectMode: false, defaultEncoding: 'utf8', ranOut: false, awaitDrain: 0, readingMore: false, oldMode: false, decoder: null, encoding: null }, readable: true, domain: null, _events: { end: [Object], finish: [Function: onSocketFinish], _socketEnd: [Function: onSocketEnd], drain: [Object], timeout: [Function], error: [Object], close: [Object] }, _maxListeners: 10, _writableState: { highWaterMark: 16384, objectMode: false, needDrain: false, ending: false, ended: false, finished: false, decodeStrings: false, defaultEncoding: 'utf8', length: 0, writing: false, sync: false, bufferProcessing: false, onwrite: [Function], writecb: null, writelen: 0, buffer: [], errorEmitted: false }, writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 2496, _bytesDispatched: 157759, _pendingData: null, _pendingEncoding: '', server: { domain: null, _events: [Object], _maxListeners: 10, _connections: 6, connections: [Getter/Setter], _handle: [Object], _usingSlaves: false, _slaves: [], allowHalfOpen: true, httpAllowHalfOpen: false, timeout: 120000, _connectionKey: '4:0.0.0.0:3000' }, _idleTimeout: 120000, _idleNext: { _connecting: false, _handle: [Object], _readableState: [Object], readable: true, domain: null, _events: [Object], _maxListeners: 10, _writableState: [Object], writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 375, _bytesDispatched: 1410, _pendingData: null, _pendingEncoding: '', server: [Object], _idleTimeout: 120000, _idleNext: [Object], _idlePrev: [Circular], _idleStart: 1406644394348, parser: [Object], ondata: [Function], _paused: false, _httpMessage: null }, _idlePrev: { _idleNext: [Circular], _idlePrev: [Object] }, _idleStart: 1406644399010, parser: { _headers: [], _url: '', onHeaders: [Function: parserOnHeaders], onHeadersComplete: [Function: parserOnHeadersComplete], onBody: [Function: parserOnBody], onMessageComplete: [Function: parserOnMessageComplete], socket: [Circular], incoming: [Circular], maxHeaderPairs: 2000, onIncoming: [Function] }, ondata: [Function], _paused: false, _httpMessage: { domain: null, _events: [Object], _maxListeners: 10, output: [], outputEncodings: [], writable: true, _last: false, chunkedEncoding: false, shouldKeepAlive: true, useChunkedEncodingByDefault: true, sendDate: true, _headerSent: false, _header: '', _hasBody: true, _trailer: '', finished: false, _hangupClose: false, socket: [Circular], connection: [Circular], _headers: [Object], _headerNames: [Object], req: [Circular], locals: {} } }, _consuming: false, _dumped: false, httpVersionMajor: 1, httpVersionMinor: 1, upgrade: false, next: [Function: next], baseUrl: '', originalUrl: '/menuItems', _parsedUrl: { protocol: null, slashes: null, auth: null, host: null, port: null, hostname: null, hash: null, search: null, query: null, pathname: '/menuItems', path: '/menuItems', href: '/menuItems' }, params: {}, query: {}, res: { domain: null, _events: { finish: [Function] }, _maxListeners: 10, output: [], outputEncodings: [], writable: true, _last: false, chunkedEncoding: false, shouldKeepAlive: true, useChunkedEncodingByDefault: true, sendDate: true, _headerSent: false, _header: '', _hasBody: true, _trailer: '', finished: false, _hangupClose: false, socket: { _connecting: false, _handle: [Object], _readableState: [Object], readable: true, domain: null, _events: [Object], _maxListeners: 10, _writableState: [Object], writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 2496, _bytesDispatched: 157759, _pendingData: null, _pendingEncoding: '', server: [Object], _idleTimeout: 120000, _idleNext: [Object], _idlePrev: [Object], _idleStart: 1406644399010, parser: [Object], ondata: [Function], _paused: false, _httpMessage: [Circular] }, connection: { _connecting: false, _handle: [Object], _readableState: [Object], readable: true, domain: null, _events: [Object], _maxListeners: 10, _writableState: [Object], writable: true, allowHalfOpen: true, onend: [Function], destroyed: false, bytesRead: 2496, _bytesDispatched: 157759, _pendingData: null, _pendingEncoding: '', server: [Object], _idleTimeout: 120000, _idleNext: [Object], _idlePrev: [Object], _idleStart: 1406644399010, parser: [Object], ondata: [Function], _paused: false, _httpMessage: [Circular] }, _headers: { 'x-powered-by': 'Express' }, _headerNames: { 'x-powered-by': 'X-Powered-By' }, req: [Circular], locals: {} }, route: { path: '/menuItems', stack: [ [Object] ], methods: { post: true } } }
您需要使用https://www.npmjs.org/package/body-parser模块来parsingPOST请求的主体。
app.use(express.static(__dirname)); // parse application/x-www-form-urlencoded app.use(bodyParser.urlencoded({ extended: false })) // parse application/json app.use(bodyParser.json()) app.get('/menuItems', menu.getMenuItems);