Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Java»ñȡϵͳӲÅ̺ÍÄÚ´æÊ¹ÓÃÇé¿ö£»

ʹÓÃÀàjava.io.File
1.»ñȡϵͳӲÅÌÐÅÏ¢£º
public static String getDiskInfo() {
StringBuffer sb=new StringBuffer();
File[] roots = File.listRoots();// »ñÈ¡´ÅÅÌ·ÖÇøÁбí
for (File file : roots) {
long totalSpace=file.getTotalSpace();
long freeSpace=file.getFreeSpace();
long usableSpace=file.getUsableSpace();
if(totalSpace>0){
sb.append(file.getPath() + "(×ܼƣº");
sb.append(Math.round(((double)totalSpace/ (1024*1024*1024))*100/100.0) + "GB ");
if(Math.round((((double)usableSpace/ (1024*1024*1024))*100)/100.0)<=1){
sb.append("Ê£Óࣺ" + Math.round((((double)usableSpace/ (1024*1024))*100)/100.0) + "MB)<br>");
}else{
sb.append("Ê£Óࣺ" + Math.round((((double)usableSpace/ (1024*1024*1024))*100)/100.0) + "GB)<br>");
}
// sb.append("ÒÑʹÓÃ" + Math.round((((double)(totalSpace-usableSpace)/(1024*1024*1024))*100)/100.0) + "G<br>");
}
}
return sb.toString();
}
2.ϵͳÄÚ´æÐÅÏ¢£º
public static String getEMS() {
StringBuffer sb=new StringBuffer();
OperatingSystemMXBean osmb = (OperatingSystemMXBean) ManagementFactory
.getOperatingSystemMXBean();
sb.append("ϵͳÎïÀíÄÚ´æ×ܼƣº" + osmb.getTotalPhysicalMemorySize()
/ 1024 / 1024 + "MB<br>");
sb.append("ϵͳÎïÀí¿ÉÓÃÄÚ´æ×ܼƣº" + osmb.getFreePhysicalMemorySize()
/ 1024 / 1024 + "MB");
return sb.toString();
}
3.»ñȡӲÅÌ·ÖÇøÏµÄĿ¼ºÍÎļþÁÐ±í£º
public static String getDiskFileList() {
StringBuffer sb = new StringBuffer();
String[] fileList = null;
File[] roots = File.listRoots();// »ñȡӲÅÌ·ÖÇøÁÐ±í£»
for (File file : roots) {
long totalSpace = file.getTotalSpace();
fileList = file.list();
if (totalSpace > 0) {
sb.append(file.getPath() + "ÏÂĿ¼ºÍÎļþ£º");
for (int i = 0; i < fileList.length; i++) {
sb.append(fileList[i] + "\n");
}
}
}
return sb.toS


Ïà¹ØÎĵµ£º

ÓÃJava NIOдHTTP Server¼Ç¼

»¨ÁËÒ»¸ö¶àÔÂÓÃJava NIOдÁËÒ»¸ö¶¨ÖƵÄHTTP Server£¬Ö÷ÒªÊÇÖ§³ÖÎÒµÄWeBuzz.IMÍøÒ³°æÁÄÌì·þÎñ
¡£
ÏȽéÉÜÒ»ÏÂWeBuzz.IMÍøÒ³ÁÄÌì·þÎñ¡£
WeBuzz.IM
ÊÇÒ»¿îÍøÒ³°æ¼´Ê±ÁÄÌ칤¾ß£¬ÓÃÓÚ°ïÖúÓû§Í¨¹ýÍøÒ³ºÍÅóÓÑÁÄÌì¡£Gtalk£¨Google Talk£©
¡¢MSN£¨Windows Live Messenger£©
¡¢Yahoo! Messenger£¨Yahoo! Chat£¬ÓÖ³ÆÎªÑÅ»¢Í¨£©
......

JSON JavaÓëAJAX(Jquery)

Ò»¡¢JSON ÊÇʲô£¿
JSON µÄÈ«³ÆÊÇJavaScript Object Notation£¬ÊÇÒ»ÖÖÇáÁ¿¼¶µÄÊý¾Ý½»»»¸ñʽ¡£
JSON ÓëXML ¾ßÓÐÏàͬµÄÌØÐÔ£¬ÀýÈçÒ×ÓÚÈ˱àдºÍÔĶÁ£¬Ò×ÓÚ»úÆ÷Éú³ÉºÍ½âÎö¡£µ«ÊÇJSON ±È
XML Êý¾Ý´«ÊäµÄÓÐЧÐÔÒª¸ß³öºÜ¶à¡£JSON ÍêÈ«¶ÀÁ¢Óë±à³ÌÓïÑÔ£¬Ê¹ÓÃÎı¾¸ñʽ±£´æ¡£
JSON Êý¾ÝÓÐÁ½Öֽṹ£º
• Name-Value ¶Ô¹¹³ÉµÄ¼¯ ......

JAVA EXCEL API¼ò½é

      Ê¹ÓÃWindows²Ù×÷ϵͳµÄÅóÓѶÔExcel£¨µç×Ó±í¸ñ£©Ò»¶¨²»»áİÉú£¬µ«ÊÇҪʹÓÃJavaÓïÑÔÀ´²Ù×ÝExcelÎļþ²¢²»ÊÇÒ»¼þÈÝÒ×µÄÊ¡£ÔÚWebÓ¦ÓÃÈÕÒæÊ¢ÐеĽñÌ죬ͨ¹ýWebÀ´²Ù×÷ExcelÎļþµÄÐèÇóÔ½À´Ô½Ç¿ÁÒ£¬Ä¿Ç°½ÏΪÁ÷ÐеIJÙ×÷ÊÇÔÚJSP»òServlet Öд´½¨Ò»¸öCSV £¨comma separated values£©Îļþ£¬²¢½«Õ⸠......

ÔÚJava 3DÖÐÔØÈëÍⲿ3DÄ£ÐÍÎļþ

Java 3DËäÈ»ÄÜÖ§³ÖÖÚ¶àµÄÍⲿ3DÄ£ÐÍÎļþ£¬µ«ÄÜÖ§³Ö±»Java 3DʹÓõÄÍⲿģÐÍÎļþ½öΪ.objºÍ.lwdÁ½ÖÖ£»·Ö±ð¶ÔÓ¦ObjectFileÀàºÍLw3dLoaderÀà¡£Ïà±È֮ϼ¸¿îÖ÷Á÷µÄ3D½¨Ä£Èí¼þ¶¼ÄÜÉú³É.obj¸ñʽµÄÎļþ£¬Òò´Ë±¾ÎÄÖ÷Òª½éÉÜʹÓÃObjectFileÀàÔØÈë.objÎļþµÄ·½·¨¡£
ObjectFileÀàÓÐÈý¸ö¹¹Ôì·½·¨£¬·Ö±ðΪ£º
ObjectFile()
ObjectFile( ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ