我的网页是能够得到阿贾克斯的数据用下面的代码如何在我读的NodeJS AJAX数据快递服务器
$.ajax({
type: 'POST',
url: "/get_cache_transactions",
async: true,
data:
JSON.stringify({
a: 11,
b: 22,
c: 33
}),
dataType: 'json',
contentType: 'application/json; charset=utf-8',
success: function (data) { process_cache_changes(data) },
error: function (xhr, ajaxOptions, thrownError) { }
})
但节点Express服务器上无法读取参数,b或c来自网页。
的表达的NodeJS代码如下
var express = require('express');
var app = express();
var handlebars = require('express-handlebars').create({ defaultLayout: 'main' });
app.engine('handlebars', handlebars.engine);
app.set('view engine', 'handlebars');
app.use(require('body-parser').urlencoded({ extended: true }));
app.post('/get_cache_transactions', function (req, res) {
console.log("************************************************************************************************")
>>> how to I get value of a, b, c ?????
res.setHeader('Content-Type', 'application/json');
res.send(JSON.stringify(pic_cache.cache, null, 2));
});
我尝试打印出所有REQ并没有什么的属性似乎包含,b或c。我试图看待req.body,再一次没有。
for (i in req.body){console.log(i)}
而且,我对这个项目的依赖关系是
"dependencies": {
"body-parser": "^1.15.1",
"cookie-parser": "^1.4.3",
"express": "^4.13.4",
"express-handlebars": "^2.0.1",
"express-session": "^1.13.0",
"formidable": "^1.0.17",
"fs": "0.0.2",
"parseurl": "^1.3.1"
},
在Chrome调试器(F12)
,我选择网络,看看后
General
Request URL:http://localhost:1662/get_cache_transactions
Request Method:POST
Status Code:200 OK
Remote Address:[::1]:1662
Response Headers
view source
Response Headers
Connection:keep-alive
Content-Length:631
Content-Type:application/json; charset=utf-8
Date:Sun, 26 Jun 2016 20:31:40 GMT
ETag:W/"277-PiWC2Y6iMvjEI1tGjkMrcw"
Request Headers
view source
Request Headers
Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip, deflate
Accept-Language:en-US,en;q=0.8
Connection:keep-alive
Content-Length:22
Content-Type:application/json; charset=UTF-8
Cookie:connect.sid=s%3AOgJ3NCHzZpte0fSsxdLRDHK6Dggql1nC.entV9uoy%2BAHG5C3rNmt%2BrzdbZ9RDwDr%2B2FAqdx5%2BZKk
Host:localhost:1662
Origin:http://localhost:1662
Referer:http://localhost:1662/
User-Agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
X-Requested-With:XMLHttpRequest
Request Payload
view source
{a: 11, b: 22, c: 33}
a
:
11
b
:
22
c
:
33
因此,我们知道以下a,b,c正在发送。
尝试删除您的AJAX的'JSON.stringify'并获得'A,B,用'req.body C'参数.a,req.body.b和req.body.c' – danilodeveloper
试图删除stringify,但仍然没有定义req.body.a – grabbag