wiflish
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在%CATALINA_HOME%/conf/web.xml中有(以tomcat5.0.28为例):

 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 >

在该段代码中增加:
 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        <!--增加的初始化参数-->
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参数的说明:
development         Is Jasper used in development mode (will check for JSP modification on every access)?  [true]
该参数默认值为true,即tomcat会对jsp页面的每次访问都检测它是否发生了修改;将该参数设置为false后,也就是说tomcat不以开发模式运行,即不再检测jsp是否发生了修改,这样能提高运行效率。
如果系统运行后,偶尔对某个jsp页面进行了修改,只要删除该jsp页面在%CATALINA_HOME%/work目录中对应的servlet源文件和class文件,再访问该jsp页面后,tomcat(jsp引擎)就会重新编译该jsp文件。
posted on 2007-01-15 15:50 想飞的鱼 阅读(1174) 评论(0)  编辑  收藏 所属分类: javaweb

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