openresty开发库

http客户端

配置openresty连接http

local http = require("resty.http")
local http_instance = http.new()

local response, error = httpc:request_uri("http://s.taobao.com", {
    method = "GET",
    path = "/search?q=hello",
    headers = {
        ["User-Agent"] = 
"Mozilla/5.0 (Windows NT 6.1; WOW64) \
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.111 Safari/537.36"
    }
})
if not response then
    ngx.say(error)
    return
end

ngx.status = response.status
for k, v in pairs(response.headers) do
    if k ~= "Transfer-Encoding" and k ~= "Connection" then
        ngx.header[k] = v
    end
end
ngx.say(response.body)

http_instance:close()

cjson解析

local cjson = require("cjson")
local obj = {
    id = 1,
    name = "zhangsan",
    age = nil,
    is_male = false,
    hobby = {"film", "music", "read"}
}
local str = cjson.encode(obj)
ngx.say(str)

str = '{"hobby":["film","music","read"],
"is_male":false,
"name":"zhangsan",
"id":1,
"age":null}'
local obj = cjson.decode(str)
ngx.say(obj.id, obj.name, obj.age, obj.hobby[1])

djson解析

local dkjson = require("dkjson")
local obj = {
    id = 1,
    name = "zhangsan",
    age = nil,
    is_male = false,
    hobby = {"film", "music", "read"}
}
local str = dkjson.encode(obj, {indent = true})

str = '{"hobby":["film","music","read"],
"is_male":false,
"name":"zhangsan",
"id":1,
"age":null}'
local obj, pos, err = dkjson.decode(str, 1, nil)
ngx.say(obj.id, obj.name, obj.age, obj.hobby[1])