JEECMS-自定义标签[list]

1.自定义标签类

import static cn.com.yhxl.common.web.freemarker.DirectiveUtils.OUT_LIST;
import static freemarker.template.ObjectWrapper.DEFAULT_WRAPPER;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;

import cn.com.yhxl.jhahi.entity.pm.PmShopArticle;
import cn.com.yhxl.jhahi.entity.pm.PmShopChannel;
import cn.com.yhxl.jhahi.service.pm.IPmShopArticleService;
import cn.com.yhxl.jhahi.service.pm.IPmShopChannelService;
import freemarker.core.Environment;
import freemarker.template.TemplateDirectiveBody;
import freemarker.template.TemplateDirectiveModel;
import freemarker.template.TemplateException;
import freemarker.template.TemplateModel;

/**
 * 内容列表标签
 */
public class ArticleListDirective implements TemplateDirectiveModel {
    /**
     * 模板名称
     */
    public static final String TPL_NAME = "content_list";
    /**
     * 栏目id
     */
    public static final String PARAM_CHANNEL_ID = "channelId";
    /**
     * 是否包含子栏目文章0：自身栏目；1：包含子栏目；
     */
    public static final String PARAM_CHANNEL_OPTION = "channelOption";

    private List<PmShopChannel> list = new ArrayList<>();

    @SuppressWarnings({ "unchecked", "deprecation" })
    public void execute(Environment env, Map params, TemplateModel[] loopVars,
            TemplateDirectiveBody body) throws TemplateException, IOException {
        // CmsSite site = FrontUtils.getSite(env);
        List<PmShopArticle> list = getList(params, env);

        Map<String, TemplateModel> paramWrap = new HashMap<String, TemplateModel>(
                params);
        paramWrap.put(OUT_LIST, DEFAULT_WRAPPER.wrap(list));
        Map<String, TemplateModel> origMap = DirectiveUtils
                .addParamsToVariable(env, paramWrap);
        if (body != null) {
            body.render(env.getOut());
        }
        DirectiveUtils.removeParamsFromVariable(env, paramWrap, origMap);
    }

    protected List<PmShopArticle> getList(Map<String, TemplateModel> params,
            Environment env) throws TemplateException {
        Long channelId = DirectiveUtils.getLong(PARAM_CHANNEL_ID, params);
        Integer channelOption = DirectiveUtils.getInt(PARAM_CHANNEL_OPTION,
                params);
        if (channelId == null) {
            return null;
        }
        if (channelOption == null) {
            channelOption = 0;
        }
        if (channelOption != null && channelOption == 0) {
            if (channelId != null) {
                return articleService.getListByChannelId(channelId, null);
            }
        }else if(channelOption != null && channelOption == 1){
            PmShopChannel parentChannel = channelService.findById(channelId);
            List<PmShopChannel> list = this.getAllChannelList(channelId);
            list.add(parentChannel);
            return articleService.getAllChildByChannelId(list);
        }
        return null;
    }

    private List<PmShopChannel> getAllChannelList(Long parentChannelId){
        List<PmShopChannel> childList = channelService.getChilds(parentChannelId);
        if (childList!=null&&childList.size()>0) {
            list.addAll(childList);
            if (childList!=null&&childList.size()>0) {
                for (PmShopChannel channel : childList) {
//                    list.add(channel);
                    this.getAllChannelList(channel.getScId());
                }
            }
        }
        return this.list;
    }

    @Autowired
    private IPmShopArticleService articleService;
    @Autowired
    private IPmShopChannelService channelService;

}

2.修改相关配置文件

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duGT5WfPSM3Dqv5aydeOoYXehjgeJR635jq3NnSc5pRQdY8Wgul9tv3JI3bLpz7lX0na9w1TxWJ7xMXWhCvN8NbXTW6Mvlcrnc0VnyaJZdtZcFSPnzEXNMLoxNTJfMB5wFhm4sOIOQzvzFKb3fNMHHAla3QRYwN+NrWCBZAi3w8dUPn/5Qf/pD/ekPNTr+d791/OkPNbqkULgk/wObI9/coY/OWmPjWPHRM/LoG6PPmhdMHcv1na8w9b0sUDzqHsP8klndGkKV0f3CuP2GFUQrnUtfBdutfHXCy5RviezdsExBx7+zant75Bawz+rNwfmgMMWdJgzdWGAemBXYeYFliiYsYHVr713S6YbdBBZImEALXJ76j79/X6OFKuDspU/+/v06XfJff/h3j93CHgz2buoaHvZjeuRkf2XGm/0UoxVRNPyQ4wfYrDvdkD+AR+1c+iqYNcpXJ75MPx/x74b/Y5kFuPHsukYwNHF6aOJi4ea0eJogHM8Drgj4WuBiocx8RjD1+TLdEufaJLNqWCBhAi3w+8nJlafrtFAFSAMLxd3i1nmt73zl1nnNPHxFtgBfQg1U8cgsa9hS5yEsIF9dfBYofz5ingWI4/OZrYaxr5+ZU3epBWStQlvA6pa3AFufXlPky8UCLJAMgRaY+M8/fPtk/dsn63Qi8O2TqjSwULJnfGP07deP7pfuxI4F6Bz41nktzBmBPesetY7nwtUHcYCxDcnUsRY7D7KAx+qEl8k0Ec6P+HejfXMByYhdvnmRPWVgW/ldNQywgNWt/xmB2BYWSIZACxi/v/q31eqj1XX6GcHfVtelgYXSv+7UMfbql2T8MBUqo/uDrg5+Y14k48/5va4OSht6X5YP27ncZbfOa86lPmF1spfJNLEs4PFuRLfAM/YrALYCnMMvf2S2J+qubxZEOB0QLGB2G/JbQ7BAwgRa4F8/uPZwpfpwpfpgpfrw/6oPV55LAwu9LOB9TR5l6xd8dzAbBFrg3O+u/+93z2m5/93z+989lwYWSv6oznVsFEULLJANAi1wdnz27G9nz/x29uz47Jnx2bPjs9LAQlerqWO+028UNQoskA2auLNYGliY+A6HksICC2QD5AugdK7AAtmgvZEyKCjSAgukmsT3DxQVSsi9ERZIhsT3DxQVSsi9ERYAQHVggZTilTuY9HaBLQgskFJ8cgcj9hTyXx8z//K8I3Sy//D/3dn1H9zbTqf7l9CGNxYWSCn+uYNReoIFGNSxwEqhYN2nMHdPXDhye8WpCwuklMDcwdA9ZcICrf2f9vAW6AjJ/pN56RtbmrMH/72xidNjS+LC8cITYj6GBVJKYO5g6J5ggU6TTgvQkU8fj9xe4Uc+Wb49TqcDy7fHR2CBlBKYOyhtxc1HzbFR1HOaYVhRPHqR0N3W2nWKOn3oOUorhpZjG1uNzMwgc3V0JBT1XC6n6TqzGdYcme3f1dz5VT6YZVvAtXIaFvWcZhTN+ubLYp93Biz3tng6JGjVzDuby2lGhRMCu4XsQs/1evxdfF+Rxx/uyZcjhS+XCSHk3tjEtZL5gLPA0Nw9QlYKhXGkjKSVwNxBeTPmqGjtHUXd3gmZs1ZWERW2ugvJcY498tpP0+Fi1XSq2BXs/j2bexxOK4ZuVbdGBvvI/MV5FdZjOlqcF+5aj/xtCblqvjaz8Xz/nJHDrVf2d/F9Rd4WsJMOTB2sFArcacLQ3D3zASyQUgJzBz3a2buP16jT2P2a2VHZ+uzBxlXNfQy2nnMNY2ul4s4a3Ny1AeZ2cwdV1ykAN2bYVyQ8ds0F3G9L9FVbVdwWcFeTPsH+OdgX4/q7+D+WWWClUHCu/7muEQxNnB6aGC/cvuacJsACKUXMHSSb6+Thu4sXumghpQFpQ7pnMTtmVAt49Zpz5u+SA6f7YE5rMetjLBCiuWvNkolFRywQfdWujfezgD1oO26BJ1+OmGcBhBBClq5Z0wEH68IBzgjSjJg7SDbXFy901VbvkVIPKXTNneiSt6wYmqbrmnTXcXY7e5QGnhEYRbutczRnZuPuGar3Zkgn8x7NbZjNZ06b2U7YwdpWCwSvumi4JjI+ZwSSLbTWK5ypiadunq8o0lzAgvHC8u1xnBGkFTF3MKwFvHdAe7djKti7t+dcwJnC289LrpmJw5i91EW4/mWX3MxlHtMEc5qu65LzBnqxrRMW8Fq1s5gZ+7koVwc9LODxd4luAcJM/h0FLN8e568UmJRggZQi5g5GskCSH5yBrAELpBQxdzDCGUGCn16DDAILpBQxdzCMBdjPkgAICSyQHTbXSWlg7kQXLV6fEQAQFVgAANWBBQBQHVgAANWBBQBQHVgAANWBBVIKcgdBbMACKQW5gwzmN3RT9D2I9CSLtQNYIKUgd9AmjV+GTI8FouQLMjcXjC0xGQSwQEpB7iDbsh0DrnWZpDNZLEK+IJM1xAELpBTkDrItYQFvC0TIF+TmBQywQEpB7qC7ak4vcmthArmkd+9y2X5+q/B6kcLdy0wP2cwXvH1NemcxLJBWkDsoWx+/FjFIwS/br5loQ370Zj5f0FzIZZAQQpZhgZSC3EFZfhC/Fkmql0+2X2vRhq61ZzNf0L4owGWQrSBxLK0gd9DVlaSaZAT6ZPu1Fm3oWns28wWlFli6hs8I0gpyB208LSDOxn2y/VqKNtwi+YLMKQPbCv+VJK0gd5DdAA8LcFsXkO3XRLThlssXnJN/swD/oSytIHcQxAYskFKQOwhiAxZIKcgdBLEBC2QH5A6CzgALAKA6sAAAqgMLAKA6sAAAqgMLAKA6sEBKQe4giA1YIKVkNndwy39pqV1vVIqABVJKZnMHVbVAO/L/hDsCfCjNCWEhrm7Dt4UFUkpmcwfjsUATa2nXhknfqPbk/xFi3t7jO4bpzUJjc677iP27ZaDSgQUyQGZzB5W1QBvy/wghS9fCTATMmsxIDujWwYoegwUyQEpyB/kEMzG4xLmpVhJAmPO/qUFs632LbkCIoLsr4QXq0tzBtOX/hT+eEyEvyK9bB3MzlmCBTJCS3EE2TUPTXDE6rlvoPQII5R7gMxDEJU5D6fa74sPEzRBfoHwuIHsfEsv/M00RDm4k+3UraQILZIO05A5ae39R14xKUdeMit1JcIIgcSUUcYdz12lK0yGC8s0QX6DXGUGK8v+CrghwuC0g6daOFXGvmmlbmsN/JUktqckdpE2Y8V+UJetx9aUW4AllgXAhgp7XPeKzQLvy/7xn8hLEMwK5XEycACKnWE1ggZSSltxB2kZzpvv2eYFPgiCf2eV5RsCn+jUdIijdDPEFulID05j/F+rynqRPn27DtIUF0kp6cge5oeyK1vcKIHQuxnlfHBRS/ZoPERQ2Q/YCXamBacz/C386QCQHfFm34drCAikFuYMgNmCBlILcQRAbsEBKQe4giA1YIDsgdxB0BlgAANWBBeKm3t+PghJz8d8nYYG4SXyHQFGw+O+TsEDcJL5DoChY/PdJWCBuQv5hAGgdWCClwAIgNmCBlBLmD5PL5f7hhRf8Sy4X8m+3JVNGWsb1VegtCiyQUkJa4B9HCv4FFmiJFi2QkZRBe2fzvFvx3tgE7iyOH1ggOdq1bZlJGQyyQGluvPAEc4H4CWmBMIRbISxg00YLZCNlMHguQAiBBeInpAUC+5HWyULuoFcFZrnQOdONT/++G6Np9t3H1s3FkjuauUwSr1eQnZRBWCClhLeAfcCXzgLkpshA7qBXBX65ZwyhV/MQG+MOGvFuGDRpyErKICyQUjo6F0hx7qDXEm7EOss9Ywg9mkfdGDEPkWvoenN4spMyKFiAr0MIIeTJlyOwQNw0PRd4+41usYhtU5872LQFxKwxwlkg0sZIw01lzUUXZChl0N7Z2JRBV7cT10qwQNw0PRc42LfrcH/v4f7eWm2BPji4b5ekcTpzB/kQcVkwoWvEesWmeTX33JgAC0gbVgyjKDSxyU7KYMAZgTUfgQXipum5wMCeHXT82z/f3LND2jyNuYO8BWTBhOJ48746KM019NoYpk8+epBzias7n8ubhGQmZTDAAtargAXipum5QF/PS3Tw03K4v3dfz4vS5unOHWzx47o0fxKZOvDdwZTSxDeI6TFpd/d211zgte7tksZpHyawQHzAAiml6buJXtm5zXVd4NWd21x1spA7CAvEByyQUuK/txwFxX+fhAXiJvEdAkXB4r9PwgJxk/gOgaJg8d8nYQEAVAcWAEB1YAEAVAcW6CzzxXPSkvR2AeDw/zkV2tfPXzTqAAAAAElFTkSuQmCC" 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3.

yhxl-core-context.xml添加如下内容：

<bean id="article_list" class="cn.com.yhxl.common.web.freemarker.ArticleListDirective"/>

yhxl-web.properties添加如下内容：

directive.article_list=article_list