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-->
          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參數的說明:
          development???????? Is Jasper used in development mode (will check for JSP modification on every access)?? [true]
          該參數默認值為true,即tomcat會對jsp頁面的每次訪問都檢測它是否發生了修改;將該參數設置為false后,也就是說tomcat不以開發模式運行,即不再檢測jsp是否發生了修改,這樣能提高運行效率。
          如果系統運行后,偶爾對某個jsp頁面進行了修改,只要刪除該jsp頁面在%CATALINA_HOME%/work目錄中對應的servlet源文件和class文件,再訪問該jsp頁面后,tomcat(jsp引擎)就會重新編譯該jsp文件。
          posted on 2007-01-15 15:50 想飛的魚 閱讀(1213) 評論(0)  編輯  收藏 所屬分類: javaweb
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