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1.rewrite使用break结，使用last会对server标签重新发起请求

location /a/ {
    rewrite ^/a/(.*)$ /b/$1 break;
    proxy_pass https://www.haiyun.me;
}

2.proxy_pass结尾添加/会丢弃路径目录，如下访问/a/test.html会代理到/test.html

location /a/ {
    rewrite ^/a/(.*)$ /b/$1 break;
    proxy_pass https://www.haiyun.me/;
}

3.代理访问重定向的网址：

proxy_redirect https://www.haiyun.me/ http://$host/;

location / {
    set $bindip '';
    content_by_lua_file '/usr/local/nginx/lua/proxy.lua';
} 
location /proxy {
    proxy_pass       "http://$host$request_uri";
    proxy_bind       $bindip;
}

local action = ngx.var.request_method
if action == "POST" then
    method = ngx.HTTP_POST
else
    method = ngx.HTTP_GET
end
res = ngx.location.capture(
    '/proxy', { method = method, always_forward_body = true, copy_all_vars = true }
    )
ngx.print(res.body)
ngx.print(res.status)

git clone https://github.com/liseen/lua-resty-http.git

Nginx配置：

http
{
    llua_package_path "/path/to/lua-resty-http/lib/?.lua;;";
    server {
        location /test {
            content_by_lua_file '/usr/local/nginx/conf/lua/proxy.lua';
        }
}

Proxy.lua内容：

local http = require "resty.http"
local hc = http:new()
local url = "http://"
if ngx.var.http_host then
    url = url .. ngx.var.http_host 
end
url = url .. ngx.var.request_uri  -- 拼接完整的URL
if ngx.var.args then
    url = url .. "?" .. ngx.var.args
end
--[[
local ok, code, headers, status, body = hc:proxy_pass {
url = url,
proxy = "http://192.168.1.5:8118",
timeout = 3000,
headers = ngx.req.get_headers(), -- 传递客户端HEAD
method = ngx.var.request_method, -- 传递客户端method
method = "GET",
}
]]
local ok, code, headers, status, body = hc:request {
    url = url,
    proxy = "http://192.168.1.5:8118",
    timeout = 3000,
    headers = {UserAgent = "Mozilla/5.0"},
    headers = ngx.req.get_headers(), 
    method = ngx.var.request_method,
}
ngx.say(ok)
ngx.say(code)
ngx.say(body)
ngx.say(url)

更多：http://wendal.net/422.html