public static void main(String[] args) { File file = new File("D:\file"); deleteFile(file); } publi ...

1.cmd進入mysql的bin目錄下. 2.運行以下命令：mysqldump -h 127.0.0.1 -u root -p test > D:/test.sql -h 127.0.0.1 ...

Oracle中 COUNT(count(*))語法 是統計分組后的總數 oracle 例：select count(count(*)) from s_name group by type mysq ...

private static void ListSort(List list) { //用Collections這個工具類傳list進來排序 Collections.sort(l ...

Several ports (8005, 8080, 8009) required by Tomcat v7.0 Server at localhost are already in use. The ...

/** * java 轉換日期 lht */ public static Date addDate(Date date,long day) throws ParseException { Simpl ...

function check(e) { var re = /^\d+(?=.{0,1}\d+$|$)/ if (e.value != "") { if (!re.test(e.value)) { al ...

1.導入 Maven @RequestMapping(value = "importPsd") public String importPsd(MultipartFile file,Htt ...

一.導出項目文件到本地指定目錄。 String filepath="";//項目文件路徑 ("static/img/123.png") InputStream inputstream = ...