JAVAµ÷ÓÃDOCÃüÁî
public class test {
public static void main(String argv[]) {
try {
Runtime.getRuntime().exec("cmd /c del F:\\aaa.txt");
} catch (Exception e) {
e.printStackTrace();
}
}
}
Ïà¹ØÎĵµ£º
19.1.1. Spring¶Ôlog4jµÄ¼¸¸öÔöÇ¿
×¢Òâ
¸öÈ˽¨Òé¶¼²»ÒªÊ¹Óá£
¶¨Ê±Ë¢ÐÂlog4j.properties£¬ÎÞÐëÖØÆô·þÎñÆ÷¸üÐÂlog4jÉèÖá£ËäÈ»ÕâÊǸöJ2EE Best
Practice£¬µ«ÔÚSpringµÄJavaDocÀï×¢Ã÷Á˲»ÍƼöÓÃÓÚÉú²ú»·¾³£¬ÒòΪ·þÎñÆ÷ÖØÆôµÄʱºò£¬ÄÇÌõwatch thread²»»á¹Ø±Õ¡£
½«
log4j.propertiesÎļþ·ÅÔÚWEB-INF/log4j.properti ......
Javaѧϰ´ÓÈëÃŵ½¾«Í¨
Ò»¡¢ JDK (Java Development Kit)
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁË
JavaÔËÐл·¾³£¨Java Runtime
Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕ
JDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJDKÊÇSun¹«Ë¾·¢²¼µÄJDK£¬³ýÁËSunÖ®Í⣬»¹Óк ......
2010-05-16
Èý¡¢½âÎöXMLÎĵµ
l Xerces½âÎöÆ÷¡¢SAXÀàºÍ½Ó¿Ú
l SAXÔĶÁÆ÷
n Ê×ÏÈÒªµÃµ½Ò»¸ö·ûºÏSAX org.xml.sax.XMLReader½Ó¿Ú¹æ·¶µÄÀý×Ó£¬Õâ¸ö½Ó¿Ú¶¨ÒåÁ˽âÎöÐÐΪ²¢ÔÊÐíÉèÖÃÄ³Ð©ÌØÕ÷ºÍÊôÐÔ¡£¸Ã½Ó¿ÚÌæ»»ÁËSAX1.0ÖеÄorg.xml.sax.Parser
import org.apache.xerces.parsers.SAXParser;
import org.xml. ......
FileInputStreamºÍFileOutputStream
FileInputStream £º
ÓÃÓÚ˳Ðò·ÃÎʱ¾µØÎļþ£¬ÓÃÓÚ¶ÁÈ¡ÖîÈçͼÏñÊý¾ÝÖ®ÀàµÄÔʼ×Ö½ÚÁ÷£¬´Ó³¬ÀàInputStreamÖм̳ÐÁËread,closeµÈ·½·¨£¬¶ÔÎļþ½øÐвÙ×÷£¬²»Ö§³Ö·½·¨ºÍ·½·¨£®ËüµÄÁ½¸ö³£ÓõĹ¹Ôì·½·¨ÊÇ£º¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡
&nbs ......
(1)Timer.schedule(TimerTask task,Date time)°²ÅÅÔÚÖÆ¶¨µÄʱ¼äÖ´ÐÐÖ¸¶¨µÄÈÎÎñ¡£
(2)Timer.schedule(TimerTask task,Date firstTime ,long period)°²ÅÅÖ¸¶¨µÄÈÎÎñÔÚÖ¸¶¨µÄʱ¼ä¿ªÊ¼½øÐÐÖØ¸´µÄ¹Ì¶¨ÑÓ³ÙÖ´ÐУ®
(3)Timer.schedule(TimerTask task,long delay)°²ÅÅÔÚÖ¸¶¨ÑÓ³ÙºóÖ´ÐÐÖ¸¶¨µÄÈÎÎñ£®
(4)Timer.schedule(TimerTask ......