node.js之客户端发起https和http请求

兆裕發表於 2019-6-22 21:12:00

应用场景: 1.VsCode插件开发(主要针对以javascript为主的vscode插件); 2.使用Node.js开发的客户端程序
<h3>Node.js之http请求(客户端)</h3>


代码示例如下:
<div class="cnblogs_code">
<pre>var http = require('http');

var qs = require('querystring');

var userCode = "1";

var post_data = {
userCode: userCode};//这是需要提交的数据

var content = qs.stringify(post_data);

var options = {
hostname: 'www.test.com',
port: 80,
path: '/test-web/api/sysUser/getUserCodeByInfo',
method: 'POST',
headers: {
 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
}
};

var req = http.request(options, function (res) {
console.log('STATUS: ' + res.statusCode);
console.log('HEADERS: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (chunk) {
 console.log('BODY: ' + chunk);

 var data = JSON.parse(chunk);
 console.log(data.returnCode);
});
});

req.on('error', function (e) {
console.log('problem with request: ' + e.message);
});

// 将数据写入请求体
req.write(content);//注意这个地方

req.end();</pre>
</div>
<h3>Node.js之https请求(客户端)</h3>
代码示例如下:
<div class="cnblogs_code">
<pre>var querystring = require('querystring');

const https = require("https");
var userCode = "1";
var post_data = { userCode: userCode }
var contents = querystring.stringify(post_data);

var options = {
 hostname: "www.test.com",
 port: 443, //443
 path: "/test-web/api/sysUser/getUserCodeByInfo?"+contents ,
 method: "POST",
 rejectUnauthorized: false,
 headers: {
 Accept: "*/*",
 "Accept-Encoding": "utf-8",
 "Accept-Language": "zh-CN,zh;q=0.8",
 Connection: "keep-alive",
 Host: "www.test.com"
 },

};
var mData = '';
var req = https.request(options, function (res) {
 res.setEncoding('utf-8');

 res.on('data', function (chunk) {
 var data = JSON.parse(chunk);
 console.log('BODY: ' + data);
});
});
// req.write(contents);
req.on("error", function (e) {
 console.error("====================================================" + e);
});
req.end();</pre>
</div>
 上面的hostname，如果不是域名修改为ip地址，请修改成这样，将www.test.com改为192.168.126.130，切不可指定为http://192.168.126.130， 否则会出现请求失败，主要体现为如下错误:
<img src="https://img2018.cnblogs.com/blog/1255290/201907/1255290-20190707231417063-2095417284.png" alt="">
还有一点需要强调，如果参数不用querystring.stringify()包裹的话，会出现如下错误:
<div class="cnblogs_code">
<pre>Request path contains unescaped characters</pre>
</div>
那么为什么需要querystring呢？ 因为querystring.stringify()能将对象序列化成URL的形式，以&进行拼接。 
来源：https://www.cnblogs.com/youcong/p/11070346.html

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node.js之客户端发起https和http请求