原创 ajax 跨域訪問

protected void doGet(HttpServletRequest request, HttpServletResponse respo

原创 datetimepicker 出現1899的bug

這個bug 出現的可能性有日期格式設置錯誤,解決辦法重新調整 第二個可能性,也就是我碰到的情況,startDate的問題,獲取當前時間,然後設置這個屬性 var now=new Date(); var strTime=now.getFu

原创 jsp table固定寬度,加滾動條

     <div  style="overflow-x: auto; overflow-y: auto; ">           <table

原创 ubuntu18.*下編譯SRS錯誤問題的解決

sudo apt-get install lzop /usr/include/c++/7/sstream:300:7: error: ‘struct std::__cxx11::basic_stringbuf<_CharT, _Trait

原创 jsp 計算年齡

    SimpleDateFormat form=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");    Calendar cal=Calendar.getInstance();    Date

原创 jsp servlet的web.xml的配置中碰到的詭異問題

Server Tomcat v9.0 Server at localhost failed to start. he servlets named [x] and [x.y] are both mapped to the url-pat

原创 jsp的servlet亂碼問題

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//

原创 -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT iptables: Applying

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT  iptables: Applying firewall rules: ip

原创 獲取mysql中指定庫的所有表名

select table_name from information_schema.TABLES where TABLE_SCHEMA='db_name' information_schema這個是數據系統用來保存數據表的總表

原创 apache jsp的路徑問題

    String savePath = getServletContext().getRealPath(File.separator+"img"

原创 js 字符串轉float

 οnchange="textToFloat(this.id)" 這個是 input  text的 <script> function textToFloat(x){var y=document.getElementById(x).v

原创 Xcode升級10之後項目錯誤

Ld /Users/liuyongqing/Library/Developer/Xcode/DerivedData/RenyirenshuIM-gdoqnmfczijtczbkzmlzpqkkbjeh/Build/Products/Deb

原创 iOS 生成純色圖片

-(UIImage*) imageWithColor:(UIColor*)color {     CGRect rect = CGRectMake(0.0f, 0.0f, 32.0f, 32.0f);     UIGraphicsBegi

原创 python + selenium

# -*- coding: gbk -*- #encoding=utf8 # -*- coding:cp936 -*- from selenium import webdriver from seleni

原创 android webview無法播放視頻

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){ ws.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_