JEECMS v3.0.1 beta版源码分析

JEECMS v3.0.1 beta版发布,采用的是采用hibernate3+spring mvc+spring2+freemarker主流技术架构.



首先对web.xml分析一下
这里面用的是springmvc的配置


<?xml version="1.0" encoding="UTF-8"?>

<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

    <display-name>JeeCms3</display-name>
    <context-param>
       <param-name>contextConfigLocation</param-name>
       <!---->
       <param-value>
           /WEB-INF/config/application-context.xml
           /WEB-INF/config/cache-context.xml
           /WEB-INF/config/captcha-context.xml
           /WEB-INF/config/jeecore-context.xml
           /WEB-INF/config/jeecms-context.xml
       </param-value>
    </context-param>
    <filter>
       <filter-name>processTime</filter-name>
       <filter-class>com.jeecms.common.web.ProcessTimeFilter</filter-class>
    </filter>
    <filter>
       <filter-name>encoding</filter-name>
       <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
       <init-param>
           <param-name>encoding</param-name>
           <param-value>UTF-8</param-value>
       </init-param>
    </filter>
    <filter>
       <filter-name>osivFilter</filter-name>
    <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
    </filter>
    <!--
    <filter>
       <filter-name>urlrewriteFilter</filter-name>
       <filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
           <init-param>
              <param-name>confReloadCheckInterval</param-name>
              <param-value>0</param-value>
           </init-param>
           <init-param>
              <param-name>logLevel</param-name>
              <param-value>sysout:DEBUG</param-value>
           </init-param>       
    </filter>
    -->
    <filter-mapping>
       <filter-name>processTime</filter-name>
       <url-pattern>*.do</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>encoding</filter-name>
       <url-pattern>*.do</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>osivFilter</filter-name>
       <url-pattern>*.do</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>processTime</filter-name>
       <url-pattern>*.jspx</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>encoding</filter-name>
       <url-pattern>*.jspx</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>osivFilter</filter-name>
       <url-pattern>*.jspx</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>processTime</filter-name>
       <url-pattern>*.jhtml</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>encoding</filter-name>
       <url-pattern>*.jhtml</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>osivFilter</filter-name>
       <url-pattern>*.jhtml</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>processTime</filter-name>
       <url-pattern>*.htm</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>encoding</filter-name>
       <url-pattern>*.htm</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>osivFilter</filter-name>
       <url-pattern>*.htm</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>processTime</filter-name>
       <url-pattern>*.jsp</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>encoding</filter-name>
       <url-pattern>*.jsp</url-pattern>
    </filter-mapping>
    <filter-mapping>
       <filter-name>osivFilter</filter-name>
       <url-pattern>*.jsp</url-pattern>
    </filter-mapping>
    <servlet>
       <servlet-name>JeeCmsAdmin</servlet-name>
       <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <init-param>
           <param-name>contextConfigLocation</param-name>
           <param-value>/WEB-INF/config/jeecms-servlet-admin.xml</param-value>
       </init-param>
       <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet>
       <servlet-name>JeeCmsFront</servlet-name>
       <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <init-param>
           <param-name>contextConfigLocation</param-name>
           <param-value>/WEB-INF/config/jeecms-servlet-front.xml</param-value>
       </init-param>
       <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet>
       <servlet-name>Jcaptcha</servlet-name>
       <servlet-class>com.jeecms.common.captcha.JcaptchaServlet</servlet-class>
    </servlet>
    <servlet-mapping>
       <servlet-name>Jcaptcha</servlet-name>
       <url-pattern>/captcha.svl</url-pattern>
    </servlet-mapping>
    <servlet>
       <servlet-name>DbFile</servlet-name>
       <servlet-class>com.jeecms.core.action.front.DbFileServlet</servlet-class>
    </servlet>
    <servlet-mapping>
       <servlet-name>JeeCmsAdmin</servlet-name>
       <url-pattern>/jeeadmin/jeecms/*</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
       <servlet-name>JeeCmsFront</servlet-name>
       <url-pattern>*.jhtml</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
       <servlet-name>JeeCmsFront</servlet-name>
       <url-pattern>*.jspx</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
       <servlet-name>JeeCmsFront</servlet-name>
       <url-pattern>*.jsp</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
       <servlet-name>JeeCmsFront</servlet-name>
       <url-pattern>*.htm</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
       <servlet-name>DbFile</servlet-name>
       <url-pattern>/dbfile.svl</url-pattern>
    </servlet-mapping>
    <listener>
       <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    </listener>
    <session-config>
       <session-timeout>20</session-timeout>
    </session-config>
    <!--
       <jsp-config>
           <taglib>
              <taglib-uri>http://displaytag.sf.net/el</taglib-uri>
              <taglib-location>/WEB-INF/tld/displaytag-el.tld</taglib-location>
           </taglib>
       </jsp-config>
       -->
    <welcome-file-list>
       <welcome-file>index.html</welcome-file>
       <welcome-file>index.jhtml</welcome-file>
    </welcome-file-list>
    <error-page>
       <error-code>403</error-code>
       <location>/WEB-INF/error/403.jsp</location>
    </error-page>
    <mime-mapping>
       <extension>rar</extension>
       <mime-type>application/zip</mime-type>
    </mime-mapping>
    <mime-mapping>
       <extension>doc</extension>
       <mime-type>application/zip</mime-type>
    </mime-mapping>
    <!--
       <error-page>
           <exception-type>java.lang.Throwable</exception-type>
           <location>/WEB-INF/error/uncaughtException.jsp</location>
       </error-page>
       <error-page>
           <error-code>500</error-code>
           <location>/WEB-INF/error/500.jsp</location>
       </error-page>
       <error-page>
           <error-code>404</error-code>
           <location>/WEB-INF/error/404.jsp</location>
       </error-page>
       -->
</web-app>


分析jeecms filter配置
几个公用的filter

<filter>
        <filter-name>processTime</filter-name>
        <filter-class>com.jeecms.common.web.ProcessTimeFilter</filter-class>
</filter>





可以记录处理时间的在外面统计加,感觉比原来在程序内部加的好.包括整个处理流程中的时间都会记录
processTime被配置在过滤器的最前端
下面是编码encoding过滤器
<filter>
        <filter-name>encoding</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
</filter>


默认字符编码是utf-8





下面是编码osivFilter过滤器
    <filter>
        <filter-name>osivFilter</filter-name>
        <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
    </filter>


一个Request的处理周期内，Session都是Open





对这几个filter

处理不同的扩展名的请求:*.do,*.jspx,*.jhtml,*.htm,*.jsp

processTime
à

?
encoding
à

?
osivFilter




后台处理过滤器

JeeCmsAdmin

/jeeadmin/jeecms/*



Jeecms路径前台采用的是二级路径,不属于后台的请求被前台的filter拦截

JeeCmsFront

*.do,*.jspx,*.jhtml,*.htm,*.jsp



验证码
Jcaptcha

/captcha.svl



DbFile

/dbfile.svl

在com.jeecms.cms.action.front. DynamicPageAct中预处理这些请求如/news/index.jhtml


/**
             * <pre>
            
             * 映射所有路径到 这个方法如 /news/index.jhtml
                </pre>
*/
  @RequestMapping(value={"/**/*.*"}, method={org.springframework.web.bind.annotation.RequestMethod.GET})
   public String dynamic(HttpServletRequest request, HttpServletResponse response, ModelMap model)
   {
     int pageNo = URLHelper.getPageNo(request);
     String[] params = URLHelper.getParams(request);
     URLHelper.PageInfo info = URLHelper.getPageInfo(request);
     String[] paths = URLHelper.getPaths(request);
     int len = paths.length;
     if (len == 1)
     {
       return channel(paths[0], pageNo, params, info, request, response,
         model);
     }if (len == 2) {
       if (paths[1].equals("index"))
       {
         return channel(paths[0], pageNo, params, info, request,
           response, model);
       }
       try
       {
         Integer id = Integer.valueOf(Integer.parseInt(paths[1]));
         return content(id, pageNo, params, info, request, response,
           model);
       } catch (NumberFormatException e) {
         log.debug("Content id must String: {}", paths[1]);
         return FrontUtils.pageNotFound(request, response, model);
       }
     }

     log.debug("Illegal path length: {}, paths: {}", Integer.valueOf(len), paths);
     return FrontUtils.pageNotFound(request, response, model);
   }






DynamicPageAct中将处理首页请求”/”和”/index.jhtml”


@RequestMapping(value={"/"}, method={org.springframework.web.bind.annotation.RequestMethod.GET})
   public String index(HttpServletRequest request, ModelMap model)
   {
     CmsSite site = CmsUtils.getSite(request);
     FrontUtils.frontData(request, model, site);
     return FrontUtils.getTplPath(request, site.getSolutionPath(),
       "index", "tpl.index");
   }

   @RequestMapping(value={"/index.jhtml"}, method={org.springframework.web.bind.annotation.RequestMethod.GET})
   public String indexForWeblogic(HttpServletRequest request, ModelMap model)
   {
     return index(request, model);
   }








      

例如运行访问首页运行结果
/WEB-INF/t/cms/www/red

CmsSite.java


public String getSolutionPath()
{
     return "/WEB-INF/t/cms/" + getPath() + "/" + getTplSolution();
}







首页处理方法会返回到对应的视图:下面的首页地址
/WEB-INF/t/cms/www/red/index/首页.html



DynamicPageAct.java




   @RequestMapping(value={"/"}, method={org.springframework.web.bind.annotation.RequestMethod.GET})
   public String index(HttpServletRequest request, ModelMap model)
   {
     CmsSite site = CmsUtils.getSite(request);
     FrontUtils.frontData(request, model, site);
     return FrontUtils.getTplPath(request, site.getSolutionPath(),
       "index", "tpl.index");
   }