struts的工作流程

1.strurs的工作流程

• servlet容器【我们用的是tomcat】启动时，ActionServlet启动，并加载struts配置文件
• 客户端发出*.do请求时，ActionServlet根据配置文件调用相应的Action，并初始化相应的ActionForm，并将其引用传递给Action的execute方法。
• ActionServlet根据struts-config.xml配置文件里的forward配置，将返回结果，forward到客户端。

2.在web.xml中添加

struts的配置主要在两个文件中配置，web.xml适用于所有java web的部署文件，还有struts专用的配置文件struts-config.xml

 

 <!--声明action类  ActionServlet负责接收客户端请求，再由RequestProcessor去分发处理  -->
  <servlet-name>action</servlet-name>
  <servlet-class>
   org.apache.struts.action.ActionServlet
  </servlet-class>
  <init-param>               <!--给出初始化参数及其值-->
   <param-name>config</param-name>
   <param-value>/WEB-INF/struts-config.xml</param-value>
  </init-param>
  <init-param>
   <param-name>debug</param-name>
   <param-value>3</param-value>
  </init-param>
  <init-param>
   <param-name>detail</param-name>
   <param-value>3</param-value>
  </init-param>
  <load-on-startup>0</load-on-startup><!-- 应用程序启动时，即在接受任何客户端请求前，创建的servlet实例数，可以提高应用程序被第一次调用时的相应速度，但是过多的话会消耗服务器资源 -->
 </servlet>

 

<!--debugjsp的servlet-->

<servlet>

<servlet-name>debugjsp</servlet-name>

<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>

<init-param>

<param-name>classdebuginfo</param-name>

<param-value>true</param-value>

</init-param>

<load-on-startup>2</load-on-startup>

</servlet>

 

<servlet-mapping>

<servlet-name>debugjsp</servlet-name>

<url-pattern>*.jsp</url-pattern>

</servlet-mapping>

 

3.struts-config.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">

 

<struts-config>
 <data-sources /><!--数据源，这里暂不配置，由spring或hibernate来配置-->

 

 <form-beans>
  <form-bean name="uploadfileform"
   type="org.cims201.struts.formbean.uploadfile.UploadFileForm">
  </form-bean>

  

<!--若干个formbean-->

</form-beans>

 

<global-exceptions />

 <global-forwards>
   <forward name="homepage" path="/home"></forward>
   <forward name="message" path="/kupload/message.jsp"></forward>
   <forward name="error" path="/kupload/error.jsp"></forward>
 </global-forwards>

 

 

<action-mappings>

 

<!-- 用户注册的action -->
  <action path="/registAction" name="registform">

<!--这里用了spring注释的方式，所以不写       type="org.cims201.action.RegistAction"-->
   <forward name="registsuccess"
    path="/regist/registResult.jsp">
   </forward>
   <forward name="registfailure"
    path="/regist/registResult.jsp">
   </forward>
  </action>

 

<!--若干个action-->

 

</action-mappings>

 

<!-- Spring集成Struts -->
 <controller>
  <set-property property="processorClass"
   value="org.springframework.web.struts.DelegatingTilesRequestProcessor" />
 </controller>

 

 

 

<message-resources
  parameter="org.cims201.struts.ApplicationResources" /><!--资源文件，扩展名为.properties>

 <plug-in className="org.apache.struts.tiles.TilesPlugin">

  <set-property property="definitions-config"
   value="/WEB-INF/tiles-defs.xml" />
  <set-property property="moduleAware" value="true" />
 </plug-in>

  <plug-in className="org.cims201.service.job.SchedulerJobs"></plug-in>

<!--插件-->

</struts-config>

 

 

 

 

 

 

 

 

 

//标签库-在web.xml中配置-------------------------------------------------------------------------------------------------------------------

<jsp-config>
  <taglib>
   <taglib-uri>/tags/struts-bean</taglib-uri>
   <taglib-location>
    /WEB-INF/tags/struts-bean.tld
   </taglib-location>
  </taglib>

  <taglib>
   <taglib-uri>/tags/struts-html</taglib-uri>
   <taglib-location>
    /WEB-INF/tags/struts-html.tld
   </taglib-location>
  </taglib>

  <taglib>
   <taglib-uri>/tags/struts-logic</taglib-uri>
   <taglib-location>
    /WEB-INF/tags/struts-logic.tld
   </taglib-location>
  </taglib>

  <taglib>
   <taglib-uri>/tags/struts-tiles</taglib-uri>
   <taglib-location>
    /WEB-INF/tags/struts-tiles.tld
   </taglib-location>
  </taglib>

  <taglib>
   <taglib-uri>/tags/extremecomponents</taglib-uri>
   <taglib-location>
    /WEB-INF/tags/extremecomponents.tld
   </taglib-location>
  </taglib>

  <taglib>
   <taglib-uri>/tags/c</taglib-uri>
   <taglib-location>/WEB-INF/tags/c.tld</taglib-location>
  </taglib>
  <taglib>
   <taglib-uri>/tags/fn</taglib-uri>
   <taglib-location>/WEB-INF/tags/fn.tld</taglib-location>
  </taglib>
  <taglib>
   <taglib-uri>/tags/fmt</taglib-uri>
   <taglib-location>/WEB-INF/tags/fmt.tld</taglib-location>
  </taglib>
  <!-- jenkov-prizetags-bin-2.6.3 -->
  <taglib>
   <taglib-uri>/tags/tree</taglib-uri>
   <taglib-location>/WEB-INF/tags/treetag.tld</taglib-location>
  </taglib>
  <taglib>
   <taglib-uri>/tags/request</taglib-uri>
   <taglib-location>
    /WEB-INF/tags/requesttags.tld
   </taglib-location>
  </taglib>
  <taglib>
   <taglib-uri>http://www.tonbeller.com/wcf</taglib-uri>
   <taglib-location>/WEB-INF/wcf/wcf-tags.tld</taglib-location>
  </taglib>

  <taglib>
   <taglib-uri>http://www.tonbeller.com/jpivot</taglib-uri>
   <taglib-location>
    /WEB-INF/jpivot/jpivot-tags.tld
   </taglib-location>
  </taglib>
 </jsp-config>

 

data-source  在spring的beans.xml中的配置

<bean id="dataSource"
  class="org.logicalcobwebs.proxool.ProxoolDataSource"
  destroy-method="close">
  <property name="driver">
   <value>oracle.jdbc.driver.OracleDriver</value>
  </property>
  <property name="driverUrl">
   <value>

    jdbc:oracle:thin:caltksp/caltksp@127.0.0.1:1521:ORCL

   </value>
   <!--用户名和密码写在一起才调用成功,不然会报 调用无效的参数 错误，下面设置用户名和密码的property好像是无效的，其它数据库也是这样
    比如mysql的也要把用户名和密码写在url里：<property name="driverUrl" value="jdbc:mysql://localhost:3306/blogdb?user=lizongbo&amp;password=lizongbo" />
   -->
  </property>
  <property name="user"><!-- 必须在这里也设置，但是 proxool却不使用它，或许是个bug-->
   <value>caltksp</value>
  </property>
  <property name="password"><!-- 必须在这里也设置，但是 proxool却不使用它，或许是个bug-->
   <value>caltksp</value>
  </property>
  <property name="alias">
   <value>caltksp</value>
  </property>
  <property name="houseKeepingSleepTime">
   <value>90000</value>
  </property>
  <property name="prototypeCount">
   <value>5</value>
  </property>
  <property name="maximumConnectionCount">
   <value>1000</value>
  </property>
  <property name="minimumConnectionCount">
   <value>10</value>
  </property>
  <property name="trace">
   <value>false</value>
  </property>
  <property name="verbose">
   <value>false</value>
  </property>

 </bean>