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

javascriptµ÷ÓÃjava´úÂ룬el±í´ïʽ

ÎÒÃÇÔÚjspÒ³ÃæÉϵÄjs½Å±¾ÖпÉÒÔµ÷ÑÐjava´úÂ룬±ÈÈ磬ÎÒÃÇÐèÒªÔÙjsÖÐÓÃalertº¯ÊýÏÔʾ·þÎñÆ÷¶Ë·¢Ë͹ýÀ´µÄij¸ö×Ö·û´®ÄÇôÎÒÃÇ¿ÉÒÔÕâÑù×ö
tomcat주
ÔÚ·þÎñÆ÷¶ËÎÒÃÇÓÐrequest.setAttribute("name","abc");
ÄÇôÎÒÒªÔÚÒ³ÃæÉÏÓÃalertÏÔʾµÄ»°£¬ÓÐÁ½ÖÖ·½Ê½£º
1¡¢Ê¹ÓÃEL±í´ïʽ
  ÔÚEl±í´ïʽµÄÍâÃæÓÃÒýºÅ¼´¿É£º
<script language="javascript">
alert("${param.name}");
</script>
2¡¢Ê¹ÓÃjava´úÂë
ʹÓÃjava±äÁ¿µÄÖµÒªÕâÑù£º"<%= name%>"
<script language="javascript">
<%
    String name = request.getParameter("name");
%>
alert("<%= name%>");
</script>


Ïà¹ØÎĵµ£º

JavaÄÚ´æÒç³ö·ÖÀà

¹ØÓÚJavaÒç³ö·ÖÀ࣬ÎÒ¾­³£Åöµ½µÄÊÇÁ½ÀࣺһÀàÊÇjava.lang.OutOfMemoryError: Java heap space£¬Ò»ÀàÊÇjava.lang.OutOfMemoryError: PermGen space¡£
ÔÚÕâÁ½ÀàÖУ¬Ç°ÕßÅö¼ûµÄ´ÎÊý±È½ÏƵ·±¡£ÒòΪµ¼ÖÂJava heap spaceµÄÇé¿ö£¬ÓÐʱºò²¢²»ÊÇÄÚ´æ²»¹»£¬ËüÒ²»áÅ×´Ë´íÎóÐÅÏ¢¡£ÀýÈçÎÒ¾ÍÅöµ½¹ýÕâÑùµÄÇé¿ö£¬ÎÒµ±Ê±Í¨¹ýGCÈÕÖ¾·¢ÏÖ£¬ÄÚ´ ......

ÎÒÓÃÕâ¸ö¿´Ð§¹û£ºÒ»¸ö»ù±¾µÎJava´°¿Ú´ø°´¼ü¼ì²â

Ò»¸öJava´°¿Ú´ø°´¼ü¼ì²â£¨ÅÜJava¿ÉÊÓС³ÌÐòʱÓã©£¬沒¼ÓÐÞÊΣ¬°³×Ô¼ºÓõΡ£
package math;
import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
/**
* »ù±¾µÄ»æÍ¼´°¿Ú£¬»Ø³µ¹Ø±Õ´°¿Ú
*/
@SuppressWarnings("s ......

java¶àÏß³ÌÀý×Ó

package debug;import java.io.*;import java.lang.Thread;class MyThread extends Thread{  public int x = 0;  public void run(){    System.out.println(++x);  }}class R implements Runnable{  private int x = 0;  public void run(){    System.out.printl ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ