遍历CSDN博客

--http://blog.csdn.net/leixiaohua1020/article/list/14?viewmode=contents

function saveData(data)

	local file = io.open("temp.html", "w")

	file:write(data)

	file:close()

end

function getPageCount(url)

	local http = require("socket.http")

	local resp = http.request(url)

	local s = string.find(resp, "<div id=\"papelist\" class=\"pagelist\">")

	local e = string.find(resp, "</div>", s)

	local divData = string.sub(resp, s, e + 5)

	--print(divData)

	local i, j = string.find(divData, "共%d+页")

	local pageCount = string.sub(divData, i + 3, j - 3)

	return pageCount

end

function getTitles(username)

	if(username == nil or username == "") then

		print("username is nil")

		return

	end

	local preUrl = "http://blog.csdn.net/"

	local endUrl = "?viewmode=contents"

	local url = preUrl .. username .. endUrl

	local pageCount = getPageCount(url)

	for i = 1, pageCount do

		local blogUrl = preUrl .. username .. "/article/list/" .. i .. endUrl

		local http = require("socket.http")

		local resp = http.request(blogUrl)

		local pos = 1

		_, pos = string.find(resp, "link_title", pos)

		while(pos ~= nil) do

			local i, j = string.find(resp, "details/%d+\">", pos)

			--print("pageid = " ..  string.sub(resp, i + 8, j - 2))

			local k, _ = string.find(resp, "</a></span>", j)

			print(string.sub(resp, j + 11, k - 23))

			_, pos = string.find(resp, "link_title", pos)

		end

	end

end

getTitles("leixiaohua1020")

如果想保存一篇指定的博文（只要正文），该怎么做呢？

其实只要我们预先保存下博文的js、css和一些控制正文的html标记，然后把正文内容填充进去就可以了。

以下lua脚本可以获得

<div id="article_content" class="article_content">

正文

</div>

start.html

<html>

<head>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

    <script src="http://static.blog.csdn.net/scripts/jquery.js" type="text/javascript"></script>

    <link rel="Stylesheet" type="text/css" href="http://static.blog.csdn.net/skin/skin-blue/css/style.css?v=1.1" />

    <link rel="shortcut icon" href="http://c.csdnimg.cn/public/favicon.ico" />

    <link type="text/css" rel="stylesheet" href="http://static.blog.csdn.net/scripts/SyntaxHighlighter/styles/default.css" />

</head>

<body>

<div id="container">

<script type="text/javascript">

    var username = "x_iya";

    var _blogger = username;

    var blog_address = "http://blog.csdn.net/x_iya";

    var static_host = "http://static.blog.csdn.net";

    var currentUserName = "";

</script>

<div id="body">

<div id="main">

<div class="main">

<div id="article_details" class="details">

end.html

</div>

</div>

</div>

<script type="text/javascript" src="http://static.blog.csdn.net/scripts/newblog.min.js"></script>

</div>

</body>

</html>

lua代码：

function GetHtml(url)

	local http = require("socket.http")

	local resp = http.request(url)

	local s = string.find(resp, "<div id=\"article_content\" class=\"article_content\">")

	local e = string.find(resp, "<!--", s)

	local data = string.sub(resp, s, e - 1)

	return data

end

function SaveData(data)

	local file = io.open("csdn.html", "w")

	file:write(data)

	file:close()

end

function ReadData(filepath)

	local file = io.open(filepath, "r")

	local data = file:read("*a")

	file:close()

	return data

end

--local url = "http://blog.csdn.net/x_iya/article/details/52327827"

if #arg == 1 then

	local url = arg[1]

	local startData = ReadData("start.html")

	local endData = ReadData("end.html")

	local html = startData .. GetHtml(url) .. endData

	SaveData(html)

else

	print("Usage: lua csdn.lua url")

end

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遍历CSDN博客

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