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

java servlet ÂÒÂë

javaдÎļþÂÒÂë
StringBuffer sb = new StringBuffer();
  sb.append("<table  border=\"0\" width=\"100%\" cellpadding=\"0\" cellspacing=\"1\" bgcolor=\"b5d6e6\"");
  sb.append("<tr>");
  sb.append("<td bgcolor=\"#FFFFFE\" height=\"42\" colspan=\""+ (jsd.size()+1) +"\" align=\"center\"><b>" +    dataSet.getTitle() + "</b></td>");
  sb.append("</tr>");
  sb.append("</tr>");
  sb.append("</table>");
  return sb.toString();
½â¾ö·½·¨
ʹÓÃ
public static String ISOToInnerCode(String str) {
        if (str == null)
            return null;
        try {
            str = (new String(str.getBytes("ISO-8859-1"), "UTF-8")).trim();
        } catch (Exception ex) {
        }
        return str;
    }
ÈôÊÇÔÚservletÖÐÔòʹÓÃ
request.setCharacterEncoding("UTF-8");
   response.setContentType("text/html;charset=utf-8"); 
    PrintWrite out=response.getWrite();
Èç¹ûÊÇ
OutputStream out = response.getOutputStream();
Êä³öʱÓÃout.write(Content.getBytes("utf-8"));¼´Ôö¼ÓÒ»ÖÖ±àÂë utf-8Ò²¿É¸Ä³ÉÆäËû±àÂëgbk,gb2312µÈ ÒÀ×Ô¼ºÇé¿ö¶ø¶¨
Èç¹û½ÓÊÜ´«²ÎÊýʱÂÒÂë Ö»Ðè°Ñ response.setContentType("text/html;charset=utf-8"); 
¸Ä³Éresponse.setCharacterEncoding("UTF-8");


Ïà¹ØÎĵµ£º

ÔÚJava³ÌÐòÖнػñ¿ØÖÆÌ¨Êä³ö

     ±¾ÎĵÄÄ¿±êÊÇÉè¼ÆÒ»¸ö»ùÓÚSwingµÄJTextAreaÏÔʾ¿ØÖÆÌ¨Êä³ö¡£´ËÆÚ¼ä£¬ÎÒÃÇ»¹½«ÌÖÂÛһЩºÍJava¹ÜµÀÁ÷£¨PipedInputStreamºÍPipedOutputStream£©ÓйصÄ×¢ÒâÊÂÏî¡£×îºó»¹Òª´´½¨Ò»¸öÄܹ»²¶»ñºÍÏÔʾÆäËû³ÌÐò£¨¿ÉÒÔÊÇ·ÇJavaµÄ³ÌÐò£©¿ØÖÆÌ¨Êä³öµÄ¼òµ¥³ÌÐò¡£
Ò»¡¢Java¹ÜµÀÁ÷
     ÒªÔÚÎı¾ ......

java ɾ³ýÎļþ¼°Ä¿Â¼


javaÖÐɾ³ýĿ¼ÊÂÏÈҪɾ³ýĿ¼ÏµÄÎļþ»ò×ÓĿ¼¡£Óõݹé¾Í¿ÉÒÔʵÏÖ¡£
public void del(String filepath) throws IOException{
File f = new File(filepath);//¶¨ÒåÎļþ·¾¶        
if(f.exists() && f.isDirectory()){//ÅжÏÊÇÎļþ»¹ÊÇĿ¼
    if( ......

JAVA JDBC ¼òµ¥·ÖÒ³

        /**
          *ÐèÒª´«Èë pageNo µ±Ç°Ò³
          *             pageSizeÒ»Ò³ÏÔʾµÄÌõÊý
      ......

һЩ³£¼ûJavaÒì³£¹éÀà(¶þ)

ËãÊõÒì³£ÀࣺArithmeticExecption
¡¡¡¡¿ÕÖ¸ÕëÒì³£ÀࣺNullPointerException
¡¡¡¡ÀàÐÍÇ¿ÖÆ×ª»»Òì³££ºClassCastException
¡¡¡¡Êý×鸺ϱêÒì³££ºNegativeArrayException
¡¡¡¡Êý×éϱêÔ½½çÒì³££ºArrayIndexOutOfBoundsException
¡¡¡¡Î¥±³°²È«Ô­ÔòÒì³££ºSecturityException
¡¡¡¡ÎļþÒѽáÊøÒì³££ºEOFException
¡¡¡¡ÎļþÎ´Õ ......

javaÐòÁл¯Serializable

Ä¿Ç°ÍøÂçÉϹØÓÚ¶ÔÏóÐòÁл¯µÄÎÄÕ²»ÉÙ£¬µ«ÊÇÎÒ·¢ÏÖÏêϸÐðÊöÓ÷¨ºÍÔ­ÀíµÄÎÄÕÂÌ«ÉÙ¡£±¾È˰Ñ×Ô¼º¾­¹ý¾­Ñé×ܽáºÍʵ¼ÊÔËÓÃÖеÄÌå»áд³ÉµÄѧϰ±Ê¼Ç¹±Ï׸ø´ó¼Ò¡£Ï£ÍûÄÜΪÕû¸öjavaÉçÇøµÄ·±ÈÙ×öÒ»µãÊÂÇé¡£
¡¡¡¡ÐòÁл¯µÄ¹ý³Ì¾ÍÊǶÔÏóдÈë×Ö½ÚÁ÷ºÍ´Ó×Ö½ÚÁ÷ÖжÁÈ¡¶ÔÏó¡£½«¶ÔÏó״̬ת»»³É×Ö½ÚÁ÷Ö®ºó£¬¿ÉÒÔÓÃjava.io°üÖеĸ÷ÖÖ×Ö½ÚÁ÷Àà½«Æ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ