从postman
发送请求时出现以下错误,我使用Node.js作为后端。
错误:
POST /api/users/save-card-details 400 31.719 ms - 871
SyntaxError: Unexpected token -
at parse (/opt/lampp/htdocs/heroku/FGDP/node_modules/body-parser/lib/types/json.js:83:15)
at /opt/lampp/htdocs/heroku/FGDP/node_modules/body-parser/lib/read.js:116:18
at invokeCallback (/opt/lampp/htdocs/heroku/FGDP/node_modules/raw-body/index.js:262:16)
at done (/opt/lampp/htdocs/heroku/FGDP/node_modules/raw-body/index.js:251:7)
at IncomingMessage.onEnd (/opt/lampp/htdocs/heroku/FGDP/node_modules/raw-body/index.js:307:7)
at emitNone (events.js:86:13)
at IncomingMessage.emit (events.js:185:7)
at endReadableNT (_stream_readable.js:974:12)
at _combinedTickCallback (internal/process/next_tick.js:74:11)
at process._tickCallback (internal/process/next_tick.js:98:9)
我正在解释下面的代码。
server.js:
var express=require('express');
var morgan = require('morgan');
var http=require('http');
var bodyParser= require('body-parser');
var methodOverride = require('method-override');
var mongo = require('mongojs');
var session = require('express-session');
var app=module.exports=express();
var server=http.Server(app);
var port=8989;
var admin=require('./route/route.js');
var api=require('./api/api.js');
app.use(express.static(__dirname + '/public')); // set the static files location /public/img will be /img for users
app.use(morgan('dev')); // log every request to the console
app.use(bodyParser.urlencoded({ extended: false,limit: '5mb' })) // parse application/x-www-form-urlencoded
app.use(bodyParser.json({limit: '5mb'})) // parse application/json
app.use(methodOverride()); // simulate DELETE and PUT
app.use(session({secret: 'FGDPlexel',resave: true,saveUninitialized: true}));
app.get('/',function(req,res){
res.sendFile(__dirname + '/index.html');
})
app.post('/api/users/save-card-details',api.saveCardDetails);
api.js:
var multer = require('multer');
var storage =multer.diskStorage({
destination: function (req, file, callback) {
callback(null, './../uploads');
},
filename: function (req, file, callback) {
callback(null, Date.now()+'-'+file.originalname);
}
});
var upload = multer({ storage: storage });
exports.saveCardDetails=function(upload.single('image'),req,res){
var name=req.body.name;
var company=req.body.company;
var position=req.body.position;
var mobile=req.body.mobile;
var email=req.body.email;
var landline=req.body.landline;
var url=req.body.url;
var postcode=req.body.postcode;
var address=req.body.address;
var image=req.body.image;
var userid=req.body.userid;
var profiletext=req.body.profile;
var biography=req.body.biography;
var token_id=req.body.token_id;
console.log('request',req);
}
我在这里使用postman
发送请求并设置标头Content-Type:application/json
。屏幕截图如下所示。
在这里,我需要先上传图像,然后获取图像名称以及所有其他数据,但会出现上述错误。
答案 0 :(得分:0)
我不知道为什么,但看起来请求并不包含有效的JSON。
如果你要去
/opt/lampp/htdocs/heroku/FGDP/node_modules/body-parser/lib/types/json.js:83:15)
您将看到此功能
function parse(body) {
if (body.length === 0) {
return {}
}
if (strict) {
var first = firstchar(body)
if (first !== '{' && first !== '[') {
debug('strict violation')
throw new SyntaxError('Unexpected token ' + first) <--- Your error
}
}
debug('parse json')
return JSON.parse(body, reviver)
}
关于node.js的好处是你可以轻松地改变库中的代码。所以我会console.log
body
drop table if exists my_table;
create table my_table(id int primary key, a int, b text, c date);
insert into my_table values (1, 1, 'old text', '2017-01-01');
看看实际发生了什么。