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package script;
import java.io.File;
import java.io.IOException;
public class Realname {
 public static void main(String[] args) throws IOException
 {
 
  File oldFile = new File("d:/PMS");
  if(!oldFile.exists())
  {
   oldFile.createNewFile();
  }
  System.out.println("ÐÞ¸ÄǰÎļþÃû³ÆÊÇ£º"+oldFile.getName());
  String rootPath = oldFile.getParent();
  System.out.println("¸ù·¾¶ÊÇ£º"+rootPath);
  File newFile = new File(rootPath + File.separator + "PMSTmp");
  System.out.println("Ð޸ĺóÎļþÃû³ÆÊÇ£º"+newFile.getName());
  if (oldFile.renameTo(newFile))
  {
   System.out.println("Ð޸ijɹ¦!");
  }
  else
  {
   System.out.println("ÐÞ¸Äʧ°Ü");
  }
 }
}


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java flyweightģʽ

Flyweight ¶¨Òå:
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ÃæÏò¶ÔÏóÓïÑÔµÄÔ­Ôò¾ÍÊÇÒ»Çж¼ÊǶÔÏó,µ«ÊÇÈç¹ûÕæÕýʹÓÃÆðÀ´,ÓÐʱ¶ÔÏóÊý¿ÉÄÜÏԵúÜÅÓ
´ó,±ÈÈç,×Ö´¦ÀíÈí¼þ,Èç¹ûÒÔÿ¸öÎÄ×Ö¶¼×÷Ϊһ¸ö¶ÔÏó,¼¸Ç§¸ö×Ö,¶ÔÏóÊý¾ÍÊǼ¸Ç§,ÎÞÒɺÄ
·ÑÄÚ´æ,ÄÇôÎÒÃÇ»¹ÊÇÒª"Çóͬ´æÒì",ÕÒ³öÕâЩ¶ÔÏóȺµÄ¹²Í¬ ......

java web¹ýÂËÆ÷

filterÔªËØºÍfilter-mappingÔªËØ
<filter>¹ýÂËÆ÷ÔªËØ½«Ò»¸öÃû×ÖºÍʵÏÖjavax.servlet.FilterµÄ½Ó¿ÚµÄÀàÏà¹ØÁª¡£
 1 н¨Ò»¸öÀà Encoding Filter   
package cn.bupt.duming.util;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.se ......

CentosÖÐÅäÖÃJava»·¾³

     Èç¹û°²×°JDKʱÌáʾÒѾ­°²×°ÁËJDK£¨»òÕß°²×°µÄ°æ±¾²»ÊÇÄãÏëÒªµÄ£©£¬É¾³ýµÄ·½·¨ÈçÏ£º
    # yum -y remove java-1.4.2-gcj-compat
1.°²×°JDK
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# sh jdk-6u2-linux-i586-rpm.bin
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ÓÉÓÚJDKÊǹú¼Ê°æµÄ£¬ÔÚ±àÒëµÄʱºò£¬Èç¹ûÎÒÃÇûÓÐÓÃ-encoding²ÎÊýÖ¸¶¨ÎÒÃǵÄJAVAÔ´³ÌÐòµÄ±àÂë¸ñʽ£¬Ôòjavac.exeÊ×ÏÈ»ñµÃÎÒÃDzÙ×÷ϵͳĬÈϲÉÓõıàÂë¸ñʽ£¬Ò²¼´ÔÚ±àÒëjava³ÌÐòʱ£¬ÈôÎÒÃDz»Ö¸¶¨Ô´³ÌÐòÎļþµÄ±àÂë¸ñʽ£¬JDKÊ×ÏÈ»ñµÃ²Ù×÷ϵͳµÄfile.encoding²ÎÊý(Ëü±£´æµÄ¾ÍÊDzÙ×÷ϵͳĬÈϵıàÂë¸ñʽ£¬ÈçWIN2k£¬ËüµÄֵΪGBK)£¬È»º ......
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