Javascript 使用ExpressJS的POST请求为空

当我对服务器的路由执行POST请求时，

request.body

为空。我使用body解析器来获取JSON数据。我做错了什么

在

\u saveTicket

功能中，我有

console.log

来显示所有body请求参数。当我执行POST请求时，

request.body

为空

我需要什么来自动解析它

server.js

/**
 * Declaration
 **/
var     express   = require('express'),
        database  = require('./config/database.js'),
        morgan    = require('morgan'),
        port      = 2559,
        bodyPar   = require('body-parser'),
        methodOv  = require('method-override'),
        mongoose  = require('mongoose'),
        fsr       = require('file-stream-rotator'),
        logDirectory = __dirname + '/log',
        favicon   = require ('serve-favicon');
        app       = express();

/**
 * DB Connection
 **/
mongoose.connect(database.mongo);

/**
 * Api definition
 **/
 var accessLogStream = fsr.getStream({
   date_format: 'YYYYMMDD',
   filename: logDirectory + '/access-%DATE%.log',
   frequency: 'daily',
   verbose: false
 })

app.use(express.static(__dirname + '/public'));
app.use(morgan('combined', {stream: accessLogStream}));
app.use(bodyPar.urlencoded({'extended':'true'}));
app.use(bodyPar.json());
app.use(bodyPar.json({ type: 'application/vnd.api+json' }));
app.use(methodOv('X-HTTP-Method-Override'));
app.use(favicon(__dirname + '/public/images/favicon.ico'));

/**
 * Routes section
 **/
require('./routes/ticket.js')(app);

/**
 * Starting server
 **/
app.listen (port)
console.log ("Listening on port: " + port);

var mongoose = require('mongoose');

var TicketSchema = new mongoose.Schema({
  title:          String,
  description:    String
}, {versionKey: false});

module.exports = mongoose.model('Ticket', TicketSchema, 'Ticket');

var Ticket = require('../models/ticket');

module.exports = function(app){

   _getAllTickets = function(req, res){
    var query = Ticket.find().lean();

    query.exec(function(err, lst){
      if(err)
        res.send(err);

      res.json(lst);
    });
  };

  _saveTicket = function(req, res){
    console.log(req.body);

    var tckt = new Ticket({
      title: req.body.title,
      description: req.body.description
    });

    tckt.save(function(err){
      if(!err)
        console.log('Ticket creation successful. ');
      else
        console.log('ERROR: ' + err);
    });

    res.send(tckt);
  };

  app.get('/api/tickets/', _getAllTickets);
  app.post('/api/tickets/', _saveTicket);
}

model/ticket.js

/**
 * Declaration
 **/
var     express   = require('express'),
        database  = require('./config/database.js'),
        morgan    = require('morgan'),
        port      = 2559,
        bodyPar   = require('body-parser'),
        methodOv  = require('method-override'),
        mongoose  = require('mongoose'),
        fsr       = require('file-stream-rotator'),
        logDirectory = __dirname + '/log',
        favicon   = require ('serve-favicon');
        app       = express();

/**
 * DB Connection
 **/
mongoose.connect(database.mongo);

/**
 * Api definition
 **/
 var accessLogStream = fsr.getStream({
   date_format: 'YYYYMMDD',
   filename: logDirectory + '/access-%DATE%.log',
   frequency: 'daily',
   verbose: false
 })

app.use(express.static(__dirname + '/public'));
app.use(morgan('combined', {stream: accessLogStream}));
app.use(bodyPar.urlencoded({'extended':'true'}));
app.use(bodyPar.json());
app.use(bodyPar.json({ type: 'application/vnd.api+json' }));
app.use(methodOv('X-HTTP-Method-Override'));
app.use(favicon(__dirname + '/public/images/favicon.ico'));

/**
 * Routes section
 **/
require('./routes/ticket.js')(app);

/**
 * Starting server
 **/
app.listen (port)
console.log ("Listening on port: " + port);

var mongoose = require('mongoose');

var TicketSchema = new mongoose.Schema({
  title:          String,
  description:    String
}, {versionKey: false});

module.exports = mongoose.model('Ticket', TicketSchema, 'Ticket');

var Ticket = require('../models/ticket');

module.exports = function(app){

   _getAllTickets = function(req, res){
    var query = Ticket.find().lean();

    query.exec(function(err, lst){
      if(err)
        res.send(err);

      res.json(lst);
    });
  };

  _saveTicket = function(req, res){
    console.log(req.body);

    var tckt = new Ticket({
      title: req.body.title,
      description: req.body.description
    });

    tckt.save(function(err){
      if(!err)
        console.log('Ticket creation successful. ');
      else
        console.log('ERROR: ' + err);
    });

    res.send(tckt);
  };

  app.get('/api/tickets/', _getAllTickets);
  app.post('/api/tickets/', _saveTicket);
}

路线/ticket.js

/**
 * Declaration
 **/
var     express   = require('express'),
        database  = require('./config/database.js'),
        morgan    = require('morgan'),
        port      = 2559,
        bodyPar   = require('body-parser'),
        methodOv  = require('method-override'),
        mongoose  = require('mongoose'),
        fsr       = require('file-stream-rotator'),
        logDirectory = __dirname + '/log',
        favicon   = require ('serve-favicon');
        app       = express();

/**
 * DB Connection
 **/
mongoose.connect(database.mongo);

/**
 * Api definition
 **/
 var accessLogStream = fsr.getStream({
   date_format: 'YYYYMMDD',
   filename: logDirectory + '/access-%DATE%.log',
   frequency: 'daily',
   verbose: false
 })

app.use(express.static(__dirname + '/public'));
app.use(morgan('combined', {stream: accessLogStream}));
app.use(bodyPar.urlencoded({'extended':'true'}));
app.use(bodyPar.json());
app.use(bodyPar.json({ type: 'application/vnd.api+json' }));
app.use(methodOv('X-HTTP-Method-Override'));
app.use(favicon(__dirname + '/public/images/favicon.ico'));

/**
 * Routes section
 **/
require('./routes/ticket.js')(app);

/**
 * Starting server
 **/
app.listen (port)
console.log ("Listening on port: " + port);

var mongoose = require('mongoose');

var TicketSchema = new mongoose.Schema({
  title:          String,
  description:    String
}, {versionKey: false});

module.exports = mongoose.model('Ticket', TicketSchema, 'Ticket');

var Ticket = require('../models/ticket');

module.exports = function(app){

   _getAllTickets = function(req, res){
    var query = Ticket.find().lean();

    query.exec(function(err, lst){
      if(err)
        res.send(err);

      res.json(lst);
    });
  };

  _saveTicket = function(req, res){
    console.log(req.body);

    var tckt = new Ticket({
      title: req.body.title,
      description: req.body.description
    });

    tckt.save(function(err){
      if(!err)
        console.log('Ticket creation successful. ');
      else
        console.log('ERROR: ' + err);
    });

    res.send(tckt);
  };

  app.get('/api/tickets/', _getAllTickets);
  app.post('/api/tickets/', _saveTicket);
}

---

根据

主体解析器

中间件定义，确保HTTP请求的

内容类型

头设置为

application/json

或

x-www-form-urlencoded

。我的猜测是，它现在就出现了，因为这些

内容类型

都不是一篇多部分的文章吗？当你控制台记录req.body时会发生什么？它显示

{}

，一个空对象@dward当我使用shell进行curl时，我使用这个命令

curl-XPOST获得了正确的正文http://localhost:2559/api/tickets/ -H“内容类型：application/json”--数据“{”title:“[视频]没有lol，没有参与方”}“

但是如果我用邮递员来做请求，我就无法获得尸体。我有正确的标题。你能从邮递员那里

生成代码作为
NodeJS>请求
并将其作为你问题的一部分吗？我解决了，你是对的。问题是标题，它被设置为
text/plain
。谢谢你的朋友！