nodejs -- http模块. request() 方法 , get方法.

1. request方法:

提交评论到慕课网:

 var http = require('http');

 var querystring = require('querystring');

 var postData = querystring.stringify({

     'content': '很喜欢Scot老师的课程. 希望尽快学会nodejs!',

     'cid': 348

 });

 var options = {

     hostname: 'www.imooc.com',

     port: 80,

     path: '/course/docomment',

     method: 'POST',

     headers: {

         'Accept':'application/json, text/javascript, */*; q=0.01',

         'Accept-Encoding':'gzip, deflate',

         'Accept-Language':'zh-CN,zh;q=0.8',

         'Connection':'keep-alive',

         'Content-Length':postData.length,

         'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',

         'Cookie':'PHPSESSID=lvk77ha5lgp411jqbl2n9dovd0; imooc_uuid=94406a08-7461-473e-8676-a730e6d1f16a; imooc_isnew=1; imooc_isnew_ct=1501826723; loginstate=1; apsid=E0M2ExNjBmNWQwN2Q0MDc0YzhhZWUwMmY4MTg3NmEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMTM1NTg1NAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4X2RhY2hlbmdAMTI2LmNvbQAAAAAAAAAAAAAAAAAAAGY3YzYwNzdjYjlmMjBkYTA0OWI0OWE3ZjhiZDgxMzEz6Q6EWekOhFk%3DNm; last_login_username=x_dacheng%40126.com; Hm_lvt_f0cfcccd7b1393990c78efdeebff3968=1501826670; Hm_lpvt_f0cfcccd7b1393990c78efdeebff3968=1501826738; IMCDNS=0; cvde=59840ea3a723c-7',

         'Host':'www.imooc.com',

         'Origin':'http://www.imooc.com',

         'Referer':'http://www.imooc.com/comment/348',

         'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.86 Safari/537.36',

         'X-Requested-With':'XMLHttpRequest'

     }

 };

 //发送请求:

 var req = http.request(options, function(res){

     console.log('status: ' + res.statusCode);

     console.log('headers: ' + JSON.stringify(res.headers));

     res.on('data', function(chunk){

         console.log(Buffer.isBuffer(chunk));

         console.log(typeof chunk);

     });

     res.on('end', function(){

         console.log('评论完毕!');

     });

 });

 req.on('error', function(e){

     console.log('Error: ' + e.message);

 });

 //写入请求数据:

 req.write(postData);

 //结束请求:必须写的:

 req.end();

注意:

　　第56行的代码: req.end(); 必须写.

------------------

2. get() 方法.

get方法是对 request方法的封装, get方法自带 req.end()

nodejs 请求端: get.js

 var http = require('http');

 var querystring = require('querystring');

 var postData = {

     'name': '小明',

     'age': 26

 };

 var postDataStr = querystring.stringify(postData);

 http.get('http://www.a.com/response.php?'+postDataStr, function(res){

     console.log('status: ' + res.statusCode);

     console.log('headers: ' + JSON.stringify(res.headers));

     var txt = '';

     res.on('data', function(chunk){

         // console.log(Buffer.isBuffer(chunk));

         // console.log(typeof chunk);

         txt += chunk;

     });

     res.on('end', function(){

         console.log(typeof txt);

         console.log(txt);

29         console.log(typeof JSON.parse(txt));

30         console.log(JSON.parse(txt));

31         console.log(JSON.parse(txt).name);

32         console.log(querystring.unescape(JSON.parse(txt).name));

     });

 }).on('error', function(e){

     console.log('Error: '+e.message);

 });

PHP接收端: response.php

 <?php

     $name = $_GET["name"] . '--返回数据';

     $age = $_GET['age'] + 100;

     echo json_encode(array(

             'name' => $name,

             'age' => $age,

             'address' => 'beijing'

         ));

 ?>

运行:

注意:

　　返回的数据是 json格式的字符串 ,因此要使用 JSON.parse() 转化为json对象.

参考链接:

nodejs: request方法

巴特西

nodejs -- http模块. request() 方法 , get方法.

1. request方法:

2. get() 方法.

参考链接:

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