Java Filter ¹ýÂËÆ÷µÄʹÓÃ
1¡¢½¨Á¢Ò»¸öServlet²¢ÇÒʵÏÖFilter½Ó¿Ú
¸ÃÀàÐèҪʵÏÖFilter½Ó¿ÚÖеÄinit() doFilter() destory()·½·¨
ÆäÖÐinit()·½·¨×Ô¶¯ÔÚÏîÄ¿Æô¶¯µÄʱºò¼ÓÔØ£¬doFilter()ÔÚµ÷ÓÃxmlÅäÖõÄ·¾¶ÊǼÓÔØ£¬destory()·½·¨ÔÚÍ˳öÏîÄ¿µÄʱºò½øÐС£
public class TestFilter implements Filter{
public void init(FilterConfig filterConfig) throws ServletException{
System.out.println("³õʼ»¯Filter");
}
public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain) throws Exception{
System.out.println("½øÐÐdoFilter");
chain(request,response); //ʹÓÃÕâÒ»¾ä¼ÌÐøServletÇëÇó
}
public void destory(){
System.out.println("¹ýÂËÆ÷Ïú»Ù");
}
}
2¡¢ÔÚxmlÖÐÅäÖÃFilter
<filter>
<filter-name></filter-name>
<filter-class></filter-class>
</filter>
<filter-mapping>
<filter-name></filter-name>
<url-pattern>/*</url-pattern> //ÕâÀïÏë¶ÔÄĸö·¾¶½øÐйýÂ˾ÍÌîдÄĸö
</filter-mapping>
ÌîдºÃÉÏÊöÐÅÏ¢¼´¿É
Ó¦Óãº
±àÂë¹ýÂË
public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain) throws Exception{
System.out.println("½øÐÐdoFilter"±àÂë¹ýÂË);
try
{
request.setCharacterEncoding("GB2312") ;
}
catch (Exception e)
{
e.printStackTrace();
}
chain.doFilter(request,response) ;
}
xmlÖеÄÅäÖãº
<url-pattern>/*</url-pattern> ¶ÔËùÓÐÇëÇó¶¼¹ýÂË
Ãô¸Ð´Ê»ã¹ýÂË
public void doFilter(ServletRequest request,
ServletResponse response,
FilterChain chain)
Ïà¹ØÎĵµ£º
ת×Ô£ºhttp://student.csdn.net/space.php?uid=52781&do=blog&id=15267&cid=50252
javaÖÐʹÓÃÕýÔò±í´ïʽ
¼ÆËã»úרҵ±ÏÒµ»òÕßʹÓùýUnix¡¢PerlµÈ²úÆ·µÄ¶ÁÕßÒ»¶¨¶ÔÕýÔò±í´ïʽÓÐÒ»¶¨µÄÓ¡Ïó,¼´Ê¹Ã»ÓнӴ¥¹ýÕýÔò±í´ïʽҲ²»Òª±»ËüµÄÍâòËùÏŵ¹¡£ËäÈ»×öµ½¾«Í¨ÕýÔò±í´ïʽ±È½ÏÄÑ£¬µ«ÊÇÄܹ»ÕÆÎÕËüµÄ»ù±¾Ó¦ÓÃÈ´ÊÇ· ......
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundExce ......
¡¾ÊéÃû¡¿Java Web·þÎñ£º¹¹½¨ÓëÔËÐÐ
¡¾ÔÊéÃû¡¿Java Web Services : Up and Running
¡¾×÷Õß¡¿Martin Kalin
¡¾ÒëÕß¡¿ÈÎÔö¸Õ
¡¾³ö°æÉç¡¿µç×Ó¹¤Òµ³ö°æÉç
¡¾ÊéºÅ¡¿9787121097119
¡¾ÉÏÊÐÈÕÆÚ¡¿2009Äê11ÔÂ
¡¾ÄÚÈݼò½é¡¿
±¾ÊéÒÔʾÀýÇý¶¯µÄ·½Ê½Ï꾡µØ½éÉÜÁËXML Web·þÎñºÍRESTful ......
Ä¿±ê£ºÊµÏÖÒ»¸öºº×Ö×Ö·û´®°´ººÓïÆ´Òô×Öµä˳ÐòÅÅÐò¡£
ÔÀí£ºÔÚwindows»·¾³µÄgbk×Ö·û¼¯Àºº×ÖÊǰ´ººÓïÆ´Òô×Öµä˳Ðò±àÂëµÄ£¬Èç“´¡”ÊÇB4A1£¬“´¢”ÊÇB4A2¡£ÕâÀïÓиöÎÊÌâ¾ÍÏñÉÏÃæµÄ´¢ºÍ´¡ÕâÑùµÄͬÒô×ÖÖ»ÄÜ×ñÕÕ±àÂëµÄ˳ÐòÁË£¬ÁíÍâ¶àÒô×ÖÒ²µÃ×ñÕÕ±àÂë˳Ðò¡£Éè¼ÆË¼Â·ÊÇÏȲð·Öºº×Ö×Ö·û´®Îª×Ö·ûÊý×飬»ñµÃÿ ......
1 Boolean VS boolean
public final class Booleanextends [url=file:///G:/html_zh_CN/html/zh_CN/api/java/lang/Object.html]Object[/url]implements [url=file:///G:/html_zh_CN/html/zh_CN/api/java/io/Serializable.html]Serializable[/url], [url=file:///G:/html_zh_CN/html/zh_CN/api/java/lang ......