wiflish
          Loving Life! Loving Coding!
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          在%CATALINA_HOME%/conf/web.xml中有(以tomcat5.0.28為例):

          ?1 < servlet >
          ?2 ???????? < servlet-name > jsp </ servlet-name >
          ?3 ???????? < servlet-class > org.apache.jasper.servlet.JspServlet </ servlet-class >
          ?4 ???????? < init-param >
          ?5 ???????????? < param-name > fork </ param-name >
          ?6 ???????????? < param-value > false </ param-value >
          ?7 ???????? </ init-param >
          ?8 ???????? < init-param >
          ?9 ???????????? < param-name > xpoweredBy </ param-name >
          10 ???????????? < param-value > false </ param-value >
          11 ???????? </ init-param >
          12 ???????? < load-on-startup > 3 </ load-on-startup >
          13 ???? </ servlet >

          在該段代碼中增加:
          ?1<servlet>
          ?2????????<servlet-name>jsp</servlet-name>
          ?3????????<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
          ?4????????<init-param>
          ?5????????????<param-name>fork</param-name>
          ?6????????????<param-value>false</param-value>
          ?7????????</init-param>
          ?8????????<init-param>
          ?9????????????<param-name>xpoweredBy</param-name>
          10????????????<param-value>false</param-value>
          11????????</init-param>
          12????????<!--增加的初始化參數(shù)-->
          13????????<init-param>
          14????????????<param-name>development</param-name>
          15????????????<param-value>false</param-value>
          16????????</init-param>
          17????????<load-on-startup>3</load-on-startup>
          18????</servlet>

          development參數(shù)的說(shuō)明:
          development???????? Is Jasper used in development mode (will check for JSP modification on every access)?? [true]
          該參數(shù)默認(rèn)值為true,即tomcat會(huì)對(duì)jsp頁(yè)面的每次訪問(wèn)都檢測(cè)它是否發(fā)生了修改;將該參數(shù)設(shè)置為false后,也就是說(shuō)tomcat不以開(kāi)發(fā)模式運(yùn)行,即不再檢測(cè)jsp是否發(fā)生了修改,這樣能提高運(yùn)行效率。
          如果系統(tǒng)運(yùn)行后,偶爾對(duì)某個(gè)jsp頁(yè)面進(jìn)行了修改,只要?jiǎng)h除該jsp頁(yè)面在%CATALINA_HOME%/work目錄中對(duì)應(yīng)的servlet源文件和class文件,再訪問(wèn)該jsp頁(yè)面后,tomcat(jsp引擎)就會(huì)重新編譯該jsp文件。
          posted on 2007-01-15 15:50 想飛的魚(yú) 閱讀(1219) 評(píng)論(0)  編輯  收藏 所屬分類: javaweb
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