JEECMS自带的只有[@cms_advertising]标签,并且官方没有给文档,用法:
[@cms_advertising id='3']
<img src="${(tag_bean.attr.image_url)!?html}" width="${(tag_bean.attr.image_width)!?html}" height="${(tag_bean.attr.image_height)!?html}" />
[/@cms_advertising]
这个是根据广告ID的来调用单独的一条广告,首页幻灯片一般都有多张,不能满足需求。
其实jeecms也有另一个js调用已经实现了的,但是不能生成到html中,用户体验不好。(com.jeecms.cms.action.front.AdvertisingAct类,<script src="/ad.jspx" ……)
回到正题,自己增加一个标签,名字叫做:cms_advertising_space
步骤一:
jeecms-context.xml中增加一个bean:
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<!-- 新增按照广告牌取所有广告标签 --> < bean id="cms_advertising_space" class="com.jeecms.cms.action.directive.CmsAdvertisingSpaceDirective"/> |
步骤二:
jeecms.properties添加cms_advertising_space标签
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directive.cms_advertising_space=cms_advertising_space |
步骤三:
新增一个类:CmsAdvertisingSpaceDirective
package com.jeecms.cms.action.directive; import static com.jeecms.common.web.freemarker.DirectiveUtils.OUT_BEAN; import static freemarker.template.ObjectWrapper.DEFAULT_WRAPPER; import java.io.IOException; import java.util.HashMap; import java.util.List; import java.util.Map; import org.springframework.beans.factory.annotation.Autowired; import static com.jeecms.common.web.freemarker.DirectiveUtils.OUT_LIST; import com.jeecms.cms.entity.assist.CmsAdvertising; import com.jeecms.cms.entity.assist.CmsAdvertisingSpace; import com.jeecms.cms.manager.assist.CmsAdvertisingMng; import com.jeecms.cms.manager.assist.CmsAdvertisingSpaceMng; import com.jeecms.common.web.freemarker.DirectiveUtils; import freemarker.core.Environment; import freemarker.template.TemplateDirectiveBody; import freemarker.template.TemplateDirectiveModel; import freemarker.template.TemplateException; import freemarker.template.TemplateModel; /** * 广告对象标签 */ public class CmsAdvertisingSpaceDirective implements TemplateDirectiveModel { /** * 输入参数,广告ID。 */ public static final String PARAM_ID = "id"; @SuppressWarnings("unchecked") public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body) throws TemplateException, IOException { Integer id = DirectiveUtils.getInt(PARAM_ID, params); List<CmsAdvertising> ads = null; CmsAdvertisingSpace adspace; if (id != null) { //ad = cmsAdvertisingMng.findById(id); ads= cmsAdvertisingMng.getList(id, true); } Map<String, TemplateModel> paramWrap = new HashMap<String, TemplateModel>( params); if (ads!=null){ paramWrap.put(OUT_LIST, DEFAULT_WRAPPER.wrap(ads)); } Map<String, TemplateModel> origMap = DirectiveUtils .addParamsToVariable(env, paramWrap); body.render(env.getOut()); DirectiveUtils.removeParamsFromVariable(env, paramWrap, origMap); } @Autowired private CmsAdvertisingMng cmsAdvertisingMng; @Autowired private CmsAdvertisingSpaceMng cmsAdvertisingSpaceMng; }
标签写法:
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[@cms_advertising_space id='7'] [#list tag_list as c] < img src="${(c.attr.image_url)!?html}" width="${(c.attr.image_width)!?html}" height="${(c.attr.image_height)!?html}" /> [/#list] [/@cms_advertising_space] |
生成代码:
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< img src="http://127.0.0.1:8080/r/cms/kingyon_zh/uploads/7-140611092P2415.jpg" width="" height="" /> < img src="http://127.0.0.1:8080/r/cms/kingyon_zh/uploads/3-140611092P2415.jpg" width="" height="" /> |