ruby中的NET::HTTP方法不支持持久连接,如果您执行许多HTTP请求,则不推荐它们;这里暂时先列出几个固定用法(用来还是有点不舒服的):
其中一,二不支持请求头设置,只能用于基本的请求;三,四可以设置请求头;
NET::HTTP不能处理重定向和404 ;不支持会话保持
一. 基本GET请求get_response
require 'net/http' # 基本GET请求 require 'net/http' uri = URI('http://httpbin.org/get') response = Net::HTTP.get_response(uri) puts response.body # 带参数的GET请求 require 'net/http' uri = URI('http://httpbin.org/get?name=zhaofan&age=23') response = Net::HTTP.get_response(uri) puts response.body # 如果我们想要在URL查询字符串传递数据,通常我们会通过httpbin.org/get?key=val方式传递 # URI模块允许使用 encode_www_form 方法,将一个HASH来进行转化,例子如下: require 'net/http' uri = URI('http://httpbin.org/get?') data = {name:'zhaofan', age:23} uri.query = URI.encode_www_form(data) response = Net::HTTP.get_response(uri) puts response.body
二.基本post请求post_form
require 'net/http' # 基本POST请求 # 通过在发送post请求时添加一个params参数,这个params参数可以通过字典构造成; # 该方法底层和get_response一样都是调用了response方法 uri = URI('http://httpbin.org/post') params = {name:'zhaofan', age:23} res = Net::HTTP.post_form(uri, params) puts res.body
三.get固定用法
require 'net/http' url = URI('http://httpbin.org/get?') # 设置请求参数 params = {'name':'test'} url.query = URI.encode_www_form(params) http = Net::HTTP.new(url.host, url.port) # 设置请求头 header = {'user-agent':'Chrome/61.0.3163.100'} response = http.get(url, header) puts response.body
四.post固定用法
- application/json
require 'net/http' require 'json' #application/json url = URI('http://httpbin.org/post') http = Net::HTTP.new(url.host, url.port) # 设置请求参数 data = {'code':1, 'sex':'男', 'id':1900, 'name': 'test'}.to_json # 设置请求头 header = {'content-type':'application/json'} response = http.post(url, data, header) puts response.body
- application/x-www-form-urlencoded
require 'net/http' require 'json' #application/x-www-form-urlencoded url = URI('http://httpbin.org/post') http = Net::HTTP.new(url.host, url.port) #encodeURI参数 data = URI.encode_www_form({'name':'test'}) #设置请求头 header = {'content-type':'application/x-www-form-urlencoded'} response = http.post(url, data,header) puts response.body