這幾天車子跟別人撞了,水箱撞稀爛了,要坐一個星期的公車python
實在太無聊,就抽時間搞了這麼個APP出來,打發公車上的時光git
(開發者頭條裏的新聞專業性太強,公車上實在沒法靜心研讀)github
我常常看的也就博客園、infoq、36kr、開源中國的新聞c#
如今只作了博客園和infoq,接下來打算作36kr和開源中國的新聞(這個工做今天早上已經完成了),若是你們有什麼好建議也能夠在評論裏提ide
數據都是準實時的取來的,之後爭取作到你去刷就有新聞給你看post
todo:新聞的分享、收藏、標籤、分類等功能,固然這要看你們的熱情程度啦! url
ps:你若是看了我寫的採集代碼,就不會問爲何不用rss這種東西了spa
更新:又增長了51cto的採集程序blog
廢話少說,先來上圖開發
接着上APK的下載鏈接(你們熱情的話,蘋果版也會有的)
https://github.com/xland/DeveloperNews/blob/master/DeveloperNews.apk?raw=true
接着公佈源碼
https://github.com/xland/DeveloperNews
關鍵源碼講解:
採集程序的源碼
static void cnblogs() { CQ doc; try { var client = new RestClient("http://www.cnblogs.com/news/"); var resq = new RestRequest(Method.GET); var resp = client.Execute(resq); doc = resp.Content; } catch (Exception ex) { Thread.Sleep(GetWaitTime()); cnblogs(); return; } var arr = doc[".post_item_body"].ToList(); var dataList = new List<allen_news>(); var db = dbFactory.Open(); foreach (var item in arr) { var str = item.InnerText; var strArr = str.Split(Environment.NewLine.ToCharArray(),StringSplitOptions.RemoveEmptyEntries); var data = new allen_news(); data.news_title = strArr[0]; if (checkTitle(data.news_title)) { break; } data.news_summary = strArr[1].Trim(); data.author = strArr[2].Split("發佈於".ToCharArray(),StringSplitOptions.RemoveEmptyEntries)[0]; data.add_time = DateTime.Now; data.from_site_flag = 0; data.news_url = ((CQ)item.InnerHTML)["h3 a"].Attr("href"); dataList.Insert(0, data); } if(dataList.Count >0) { db.InsertAll<allen_news>(dataList); } db.Dispose(); Console.WriteLine("增長了{0}條文章0", dataList.Count); Thread.Sleep(GetWaitTime()); cnblogs(); }
採集程序用到了CsQuery和RestSharp和ServiceStack.OrmLite三個開源程序
GetWaitTime()隨機等1分鐘到10分鐘之間的一個時間長度,不要頻繁的採,不要有規律的採,避免目標主機封鎖採集程序所在的IP
再來看WEB服務的關鍵代碼
protected void Page_Load(object sender, EventArgs e) { dbFactory = new OrmLiteConnectionFactory(ConfigurationManager.AppSettings["dbConnStr"], MySqlDialect.Provider); var action = Request["Action"]; var id = Request["Id"]; List<allen_news> result = null; if (action == "PullDown") { var db = dbFactory.Open(); result = db.SelectFmt<allen_news>("select * from allen_news where news_id > {0} order by news_id desc limit 0,30",id); db.Dispose(); } else if(action == "PullUp") { var db = dbFactory.Open(); result = db.SelectFmt<allen_news>("select * from allen_news where news_id < {0} order by news_id desc limit 0,30", id); db.Dispose(); } else if(action == "CheckVersion") { Response.Write("1.0.0"); Response.End(); return; } else { var db = dbFactory.Open(); result = db.Select<allen_news>("select * from allen_news order by news_id desc limit 0,30"); db.Dispose(); } Response.Write(JsonConvert.SerializeObject(result)); Response.End(); }
APK客戶端的代碼,沒有什麼特殊的,你們能夠本身去看吧
OK,就這些啦,喜歡的請給我點個贊,或者到github上給我顆星
多謝各位啦