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