


Node uses express4 and body-parser to parse php curl data, but the req.body obtained is {}, and the header is set
Prerequisite knowledge:
body-parser does not support the function of parsing multi/form-data. If you are passing binary data or uploading files, you cannot use it.
Node.js body parsing middleware.
This does not handle multipart bodies, due to their complex and typically large nature. For multipart bodies, you may be interested in the following modules:
busboy and connect-busboy
multiparty and connect-multiparty
formidable
multer
This module provides the following parsers:
JSON body parser
Raw body parser
Text body parser
URL-encoded form body parser
Reference:
https://github.com/expressjs/ body-parser#bodyparserurlencodedoptions
PHP code
Java code
function addCurl($url, $type="get", $postData=null) { $ch = curl_init(); $headers[] = 'Connection: Keep-Alive'; $headres[] = 'Content-Type: application/x-www-form-urlencoded;charset=utf-8'; $headers[] = 'Content-Length: ' . strlen(json_encode($postData)); //$headres[] = 'Content-Type: application/json'; //$headres[] = 'Content-Type: text/html'; curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); if ($type=="get") { curl_setopt($ch, CURLOPT_POST, 0); } else { curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, urlencode(json_encode($postData))); } curl_setopt($ch, CURLOPT_URL, $url); $data = curl_exec($ch); $code = curl_getinfo($ch, CURLINFO_HTTP_CODE); if (curl_errno($ch)) { echo 'Curl error: ' . curl_error($ch) . PHP_EOL; curl_close($ch); return false; } curl_close($ch); return ($code == 200) ? $data : "server error,code: . {$code}"; }
node code
Java code
var express = require('express') var bodyParser = require('body-parser') var app = express() var urlencodedParser = bodyParser.urlencoded({ extended: false }) app.use(urlencodedParser, function (req, res) { res.setHeader('Content-Type', 'text/plain') res.write('you posted:\n') res.end(JSON.stringify(req.body, null, 2)) }) app.listen(3000, function() { console.log('Server is running') })
Specified parsing method still does not work. Just go to the source code of body-parser and debug it line by line.
Find urlencode.js
Java code
// determine if request should be parsed if (!shouldParse(req)) { return ('skip parsing'), next() }
This line shouldParse returns false
Then type-is.js/index.js returns false.
var value = req.headers['content-type']
Java code
function typeofrequest(req, types_) { var types = types_ // no body if (!hasbody(req)) { return null } // support flattened arguments if (arguments.length > 2) { types = new Array(arguments.length - 1) for (var i = 0; i < types.length; i++) { types[i] = arguments[i + 1] } } // request content type var value = req.headers['content-type'] return typeis(value, types) }
Found that req.headers['content-type'] here is multipart/form-data, and type is application /x-www-form-urlencoded
It turns out that when PHP executes curl, postData is an array, and the data encoding will be set to multipart/form-data
Java code
Note:
Pass an array to CURLOPT_POSTFIELDS, cURL will encode the data into multipart/form-data, but when passing a URL-encoded string, the data will be encoded into application/x-www-form-urlencoded.
Modify php code
Java code
curl_setopt($ch, CURLOPT_POSTFIELDS, urlencode(json_encode($postData)));

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。


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