原 jeecms9自定义标签以及使用新创建的数据库表

 

 转载地址：https://blog.csdn.net/nice_meng/article/details/89179089

本系统使用的是jeecmsv9版本,收集网上知识后,进行个人汇总

首先,自己创建一个表.. 我们使用的是oracle的库

1.  
   CREATE TABLE WEIPENG(
2.  
   ID NUMBER(4) PRIMARY KEY,
3.  
   CONTENT VARCHAR2(255)
4.  
   );

配置表对应的映射 在 com.jeecms.cms.entity.main.hbm.oracle创建 WeiPeng.hbm.xml

1.  
   <?xml version="1.0"?>
2.  
   <!DOCTYPE hibernate-mapping PUBLIC
3.  
   "-//Hibernate/Hibernate Mapping DTD//EN"
4.  
   "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
5.  
    
6.  
   <hibernate-mapping package="com.jeecms.cms.entity.main">
7.  
   <class
8.  
   name="WeiPeng"
9.  
   table="WEIPENG"
10.  
    >
11.  
    <meta attribute="sync-DAO">false</meta>
12.  
    <cache usage="read-write"/>
13.  
    <id name="id" type="java.lang.Integer" column="ID">
14.  
    <generator class="assigned">
15.  
    </generator>
16.  
    </id>
17.  
    <property
18.  
    name="content"
19.  
    column="CONTENT"
20.  
    type="string"
21.  
    not-null="true"
22.  
    length="100"
23.  
    />
24.  
    </class>
25.  
    </hibernate-mapping>

在 com.jeecms.cms.entity.main 创建对应的实体类 WeiPeng

1.  
   package com.jeecms.cms.entity.main;
2.  
    
3.  
   import java.io.Serializable;
4.  
   import java.util.ArrayList;
5.  
   import java.util.Date;
6.  
   import java.util.List;
7.  
   import java.util.Set;
8.  
    
9.  
   import org.apache.commons.lang.StringUtils;
10.  
    import org.json.JSONArray;
11.  
    import org.json.JSONObject;
12.  
     
13.  
    import com.jeecms.common.util.DateUtils;
14.  
    /**
15.  
    * 投稿表实体类
16.  
    * @author liyu
17.  
    *
18.  
    */
19.  
    public class WeiPeng implements Serializable{
20.  
    private Integer id;//投稿id
21.  
    private String content;//标题
22.  
    public JSONObject convertToJson(){
23.  
    JSONObject json = new JSONObject();
24.  
    if (getId()!=null) {
25.  
    json.put("id", getId());
26.  
    }else{
27.  
    json.put("id", "");
28.  
    }
29.  
    if (StringUtils.isNotBlank(getContent())) {
30.  
    json.put("content", getContent());
31.  
    }else{
32.  
    json.put("content", "");
33.  
    }
34.  
    return json;
35.  
    }
36.  
     
37.  
    public Integer getId() {
38.  
    return id;
39.  
    }
40.  
     
41.  
    public void setId(Integer id) {
42.  
    this.id = id;
43.  
    }
44.  
     
45.  
    public String getContent() {
46.  
    return content;
47.  
    }
48.  
     
49.  
    public void setContent(String content) {
50.  
    this.content = content;
51.  
    }
52.  
     
53.  
    }

在 com.jeecms.cms.dao.main 创建Dao接口方法

1.  
   package com.jeecms.cms.dao.main;
2.  
    
3.  
   import java.util.List;
4.  
    
5.  
   import com.jeecms.cms.entity.main.WeiPeng;
6.  
    
7.  
   public interface TableTestDao {
8.  
   public List<WeiPeng> getList();//获取数据库中的所有内容
9.  
   }
10.  
     

在 com.jeecms.cms.dao.main.impl 创建   Dao的实现类 TableTestDaoImpl

1.  
   package com.jeecms.cms.dao.main.impl;
2.  
    
3.  
   import java.util.List;
4.  
    
5.  
   import com.jeecms.cms.dao.main.TableTestDao;
6.  
   import com.jeecms.cms.entity.main.TableTest;
7.  
   import com.jeecms.cms.entity.main.WeiPeng;
8.  
   import com.jeecms.common.hibernate4.Finder;
9.  
   import com.jeecms.common.hibernate4.HibernateBaseDao;
10.  
     
11.  
    public class TableTestDaoImpl extends HibernateBaseDao<WeiPeng, Integer>implements TableTestDao{
12.  
    public TableTestDaoImpl() {}//空构造
13.  
     
14.  
    @Override
15.  
    protected Class<WeiPeng> getEntityClass() {
16.  
    return WeiPeng.class;
17.  
    }
18.  
     
19.  
    @Override
20.  
    public List<WeiPeng> getList() {
21.  
    Finder f = Finder.create("from WeiPeng bean");
22.  
    f.setCacheable(true);
23.  
    List find = find(f);
24.  
    return find;
25.  
    }
26.  
    }
27.  
     

 在com.jeecms.cms.manager.main创建Mng接口   TableTestMng

1.  
   package com.jeecms.cms.manager.main;
2.  
    
3.  
   import java.util.List;
4.  
   import com.jeecms.cms.entity.main.WeiPeng;
5.  
   public interface TableTestMng {
6.  
   public List<WeiPeng> getList();
7.  
   }
8.  
    

在 com.jeecms.cms.manager.main.impl创建Mng的实现类  TableTestMngImpl

1.  
   package com.jeecms.cms.manager.main.impl;
2.  
    
3.  
    
4.  
   import org.springframework.beans.factory.annotation.Autowired;
5.  
   import org.springframework.transaction.annotation.Transactional;
6.  
   import com.jeecms.cms.dao.main.TableTestDao;
7.  
   import java.util.List;
8.  
   import com.jeecms.cms.entity.main.TableTest;
9.  
   import com.jeecms.cms.entity.main.WeiPeng;
10.  
    import com.jeecms.cms.manager.main.TableTestMng;
11.  
    public class TableTestMngImpl implements TableTestMng{
12.  
     
13.  
    public TableTestMngImpl() {}//空构造
14.  
     
15.  
    private TableTestDao dao;
16.  
     
17.  
    @Autowired //自动绑定
18.  
    public void setDao(TableTestDao dao) {
19.  
    this.dao = dao;
20.  
    }
21.  
     
22.  
    @Transactional(readOnly = true)
23.  
    public List<WeiPeng> getList() {
24.  
    return dao.getList();
25.  
    }
26.  
    }
27.  
     

在com.jeecms.cms.action.directive 创建标签类TableTestDirective

1.  
   package com.jeecms.cms.action.directive;
2.  
   import java.io.IOException;
3.  
   import java.util.HashMap;
4.  
   import java.util.List;
5.  
   import java.util.Map;
6.  
   import com.jeecms.cms.Constants;
7.  
   import com.jeecms.cms.entity.main.TableTest;
8.  
   import com.jeecms.cms.entity.main.WeiPeng;
9.  
   import com.jeecms.cms.manager.main.TableTestMng;
10.  
    import static com.jeecms.cms.Constants.TPL_SUFFIX;
11.  
    import static com.jeecms.common.web.Constants.UTF8;
12.  
    import org.apache.commons.lang.StringUtils;
13.  
    import org.springframework.beans.factory.annotation.Autowired;
14.  
    import com.jeecms.common.web.freemarker.DefaultObjectWrapperBuilderFactory;
15.  
    import com.jeecms.common.web.freemarker.DirectiveUtils;
16.  
    import com.jeecms.common.web.freemarker.DirectiveUtils.InvokeType;
17.  
    import com.jeecms.common.web.freemarker.ParamsRequiredException;
18.  
    import com.jeecms.core.entity.CmsSite;
19.  
    import com.jeecms.core.web.util.FrontUtils;
20.  
    import freemarker.template.TemplateDirectiveModel;
21.  
    import freemarker.core.Environment;
22.  
    import freemarker.template.TemplateDirectiveBody;
23.  
    import freemarker.template.TemplateException;
24.  
    import freemarker.template.TemplateModel;
25.  
    public class TableTestDirective implements TemplateDirectiveModel{
26.  
    /**
27.  
    * 标签名称
28.  
    * */
29.  
    public static final String TPL_NAME = "cms_table_test";
30.  
    /**
31.  
    * 输出参数：列表数据
32.  
    */
33.  
    public static final String OUT_LIST = "tag_list";
34.  
    public TableTestDirective() {}
35.  
    /**
36.  
    * 传入参数，列表样式。
37.  
    */
38.  
    public static final String PARAM_STYLE_LIST = "styleList";
39.  
    @Override
40.  
    public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body) throws TemplateException, IOException {
41.  
    CmsSite site = FrontUtils.getSite(env);//获取站点
42.  
    List<WeiPeng> list = getList(params, env);//获取内容列表
43.  
    Map<String, TemplateModel> paramWrap = new HashMap<String, TemplateModel>(params);
44.  
    paramWrap.put(OUT_LIST, DefaultObjectWrapperBuilderFactory.getDefaultObjectWrapper().wrap(list));
45.  
    //将params的值复制到variable中
46.  
    Map<String, TemplateModel> origMap = DirectiveUtils.addParamsToVariable(env, paramWrap);
47.  
    InvokeType type = DirectiveUtils.getInvokeType(params);
48.  
    String listStyle = DirectiveUtils.getString(PARAM_STYLE_LIST, params);
49.  
    if (InvokeType.sysDefined == type) {
50.  
    if (StringUtils.isBlank(listStyle)) {
51.  
    throw new ParamsRequiredException(PARAM_STYLE_LIST);
52.  
    }
53.  
    env.include(Constants.TPL_STYLE_LIST + listStyle + TPL_SUFFIX, UTF8, true);
54.  
    } else if (InvokeType.userDefined == type) {
55.  
    if (StringUtils.isBlank(listStyle)) {
56.  
    throw new ParamsRequiredException(PARAM_STYLE_LIST);
57.  
    }
58.  
    FrontUtils.includeTpl(Constants.TPL_STYLE_LIST, site, env);
59.  
    } else if (InvokeType.custom == type) {
60.  
    FrontUtils.includeTpl(TPL_NAME, site, params, env);
61.  
    } else if (InvokeType.body == type) {
62.  
    body.render(env.getOut());
63.  
    } else {
64.  
    throw new RuntimeException("invoke type not handled: " + type);
65.  
    }
66.  
    DirectiveUtils.removeParamsFromVariable(env, paramWrap, origMap);//将variable中的params值移除
67.  
    }
68.  
    private List<WeiPeng> getList(Map params, Environment env)
69.  
    throws TemplateException {
70.  
    return tableTestMng.getList();
71.  
    }
72.  
     
73.  
    @Autowired
74.  
    private TableTestMng tableTestMng;
75.  
     
76.  
    }
77.  
     

标签类需要在jeecms-context.xml和jeecms.properties中进行配置

在jeecms-context.xml中加入

1.  
    
2.  
   <bean id="cms_table_test" class="com.jeecms.cms.action.directive.TableTestDirective"/>
3.  
    
4.  
    
5.  
   <bean id="TableTestMng" class="com.jeecms.cms.manager.main.impl.TableTestMngImpl" />
6.  
    
7.  
    
8.  
   <bean id="TableTestDao" class="com.jeecms.cms.dao.main.impl.TableTestDaoImpl" />

在jeecms.properties中加入

directive.cms_table_test=cms_table_test

前台页面 

1.  
   [@cms_table_test]
2.  
   [#list tag_list as a]
3.  
   <li>id为：${a.id}</li>
4.  
   <li>对应的内容是：${a.content}</li>
5.  
   [/#list]
6.  
   [/@cms_table_test]

最后实现的效果