jeecms3.0.4版本 详解请求如何找到首页(转)

第一步：发送http://localhost:8080/emisstrade/ 请求

第二步：首先进入配置文件web.xml，

<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>

应用范围内的初始化参数

第三步：选择页面：

<welcome-file-list>

<welcome-file>index.html</welcome-file>

<welcome-file>index.shtml</welcome-file>

<welcome-file>index.jhtml</welcome-file> 走这个

</welcome-file-list>

第四步：web.xml中的servlet配置拦截

<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-mapping>

<servlet-name>JeeCmsFront</servlet-name>

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

</servlet-mapping>

第五步：找到/WEB-INF/config/jeecms-servlet-front.xml

FrontContextInterceptor和FrontLocaleInterceptor拦截器

<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">

<property name="interceptors">

<list>

<ref bean="frontContextInterceptor"/>

<ref bean="frontLocaleInterceptor"/>

</list>

</property>

</bean>

<bean id="frontContextInterceptor" class="com.jeecms.cms.web.FrontContextInterceptor"/>

<bean id="frontLocaleInterceptor" class="com.jeecms.cms.web.FrontLocaleInterceptor"/>

发送http://localhost:8080/emisstrade/ 请求时被FrontContextInterceptor拦截----CMS上下文信息拦截器。

执行preHandle方法中---》cmsSiteMng.getListFromCache()返回站点集合---》dao.getList(true)--》String hql = "from CmsSite bean order by bean.id asc"; return getSession().createQuery(hql).setCacheable(cacheable).list();

此时给站点赋值并保存到request中（CmsUtils.setSite(request, site)方法中---》request.setAttribute(SITE_KEY, site);）用户信息也是如此保存到request（CmsUtils.setUser(request,user);）

然后进入FrontLocaleInterceptor拦截----前台本地化信息拦截器：

执行preHandle方法中---》CmsUtils.getSite(request)方法中---》request.getAttribute(SITE_KEY);

还有个方法localeResolver.setLocale(request, response, (Locale) localeEditor.getValue());

第六步：jeecms-servlet-front.xml里面有<import resource="jeecms-servlet-front-action.xml"/>

 

在jeecms-servlet-front-action.xml配置文件中有

<bean id="dynamicAct" class="com.jeecms.cms.action.front.DynamicPageAct"/>

可以找到类DynamicPageAct，根据注解机制：

@RequestMapping(value = "/index.jhtml", method = RequestMethod.GET)

public String indexForWeblogic(HttpServletRequest request, ModelMap model) {//此时model为{}

return index(request, model);//方法如下

}

@RequestMapping(value = "/", method = RequestMethod.GET)

public String index(HttpServletRequest request, ModelMap model) {

CmsSite site = CmsUtils.getSite(request);//获取站点信息

FrontUtils.frontData(request, model, site);//方法如下

//为前台模板设置公用数据里面有frontData(map, site, ser, location, startTime);给map添加数据

return FrontUtils.getTplPath(request, site.getSolutionPath(),TPLDIR_INDEX, TPL_INDEX);

//获得模板路径。将对模板文件名称进行本地化处理。返回路径/WEB-INF/t/cms/www/red/index/首页.html

}

public static void frontData(Map<String, Object> map, CmsSite site,

CmsUser user, String location, Long startTime) {//给map添加数据，很重要

if (startTime != null) {

map.put(START_TIME, startTime);

}

if (user != null) {

map.put(USER, user);

}

map.put(SITE, site);

String ctx = site.getContextPath() == null ? "" : site.getContextPath();

map.put(BASE, ctx);

map.put(RES_SYS, ctx + RES_PATH);

String res = ctx + RES_PATH + "/" + site.getPath() + "/"

+ site.getTplSolution();

// res路径需要去除第一个字符'/'

map.put(RES_TPL, res.substring(1));

map.put(LOCATION, location);

}

map数据例子：{（START_TIME）_start_time=1300770144531, （SITE）site=com.jeecms.cms.entity.main.CmsSite@2e3013f6, （BASE）base=/emisstrade,（RES_SYS）resSys=/emisstrade/r/cms, （RES_TPL）res=emisstrade/r/cms/www/red,（LOCATION）location=http://localhost:8080/emisstrade/}

public static String getTplPath(HttpServletRequest request,

String solution, String dir, String name) {

return solution + "/" + dir + "/"+ MessageResolver.getMessage(request, name) +TPL_SUFFIX;

//MessageResolver.getMessage(request, name)获得国际化信息

}

其他

返回首页.html后，加载并执行标签，然后再发出用户登录页面请求，在用户登录的js里有触发登录的请求