tomcat配置(提高运行效率)

q789321

　　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。


想飞的鱼 2007-01-15 15:50 发表评论