Liferay学习笔记
1、页面参数传递
??? 在processAction方法中获取页面参数值
???????? String action_target = actionRequest.getParameter("action_target");
??? 将参数值传递到Render方法中
???????? actionResponse.setRenderParameter("action_target", action_target);
??? 在Render的doView方法中获取参数值
???????? String action_target = renderRequest.getParameter("action_target");
??? 将参数值传递回页面
???????? renderRequest.setAttribute("result", "from doView: " + action_target);
??? 在页面取得参数值
???????? <c:out value="${requestScope.result}"/>
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2、页面信息国际化
??? <liferay-ui:message key="cuss.username.success"/>?
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???????? LanguageUtil.format(pageContext, "you-are-signed-in-as-x", signedInAs);
???????? LanguageUtil.get(pageContext, "add-new-product");
???????? you-are-signed-in-as-x=您已经以{0}身份登录
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3、获取HttpServletRequest等对象
??? HttpServletRequest servletRequest = PortalUtil.getHttpServletRequest(resourceRequest);
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??? HttpServletResponse servletResponse = PortalUtil.getHttpServletResponse(resourceResponse);
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??? HttpServletRequest servletRequest = PortalUtil.getHttpServletRequest(resourceRequest);
??? ServletContext servletContext = servletRequest.getSession().getServletContext();
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??? ThemeDisplay themeDisplay = (ThemeDisplay)resourceRequest.getAttribute(WebKeys.THEME_DISPLAY);
??? PortletDisplay portletDisplay = themeDisplay.getPortletDisplay();
??? String portletId = portletDisplay.getId();?
??? PortletBag portletBag = PortletBagPool.get(portletId);
??? ServletContext servletContext = portletBag.getServletContext();
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4、Portal路径获取：
??? ThemeDisplay themeDisplay = (ThemeDisplay) renderRequest.getAttribute??? (WebKeys.THEME_DISPLAY);
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??? //return? http://localhost:8080
??? PortalUtil.getPortalURL(renderRequest);
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??? //return? /web/guest/home?uid=cjm
??? PortalUtil.getLayoutURL(themeDisplay);
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??? //return? /E:/liferay6_tomcat/bundles/tomcat-6.0.29/webapps/ROOT/
??? PortalUtil.getPortalWebDir();
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??? //return? http://localhost:8080/web/guest/home
??? PortalUtil.getPortal().getLayoutFullURL(themeDisplay);
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??? //return? /web/guest/home?uid=cjm
??? PortalUtil.getCurrentURL(renderRequest);
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6、ROOT相关子目录的获取
??? System.out.println("2. " + themeDisplay.getPathImage());????/image
??? System.out.println("3. " + themeDisplay.getPathJavaScript());???/html/js
??? System.out.println("4. " + themeDisplay.getPathMain());?????/zh/c
??? System.out.println("5. " + themeDisplay.getPathThemeCss());????/html/themes/classic/css
??? System.out.println("6. " + themeDisplay.getPathThemeImages());???/html/themes/classic/imags
??? System.out.println("7. " + themeDisplay.getPathThemeJavaScript());??/html/themes/classic/js
??? System.out.println("8. " + themeDisplay.getPathThemeRoot());???/html/themes/classic
??? System.out.println(themeDisplay.getPortalURL());??http://localhost:8080
??? System.out.println(themeDisplay.getURLCurrent());??/zh/web/guest/kstd/convenienttravel
??? System.out.println(themeDisplay.getURLHome());???http://localhost:8080/web/guest
??? System.out.println(themeDisplay.getURLPortal());??http://localhost:8080
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7、为控制面板创建Portlet
?一个Portlet如果需要显示在控制面板中，需要在/WEB-INF/liferay-portlet.xml文件中未Portlet添加如下内容：
????? <!-- 菜单项分类，包括my、content、portal、server四种 -->
????? <control-panel-entry-category>content</control-panel-entry-category>
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????? <!-- 菜单项在该分类中的相对位置 -->
????? <control-panel-entry-weight>1.5</control-panel-entry-weight>?
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