springboot+Beetl系统数据字典(自定义标签+表结构)

1.数据库表结构

采用的是mysql数据库,先设计一下数据库系统字典表结构

CREATE TABLE `yp_sys_dictionary`  (
  `id` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT 'id',
  `pid` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '0' COMMENT '父ID 分类下再分类',
  `dictionary_type` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '数据类别',
  `dictionary_value` varchar(200) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '数据名称',
  `dictionary_code` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '数据库存值',
  `dictionary_desc` varchar(400) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '数据描述',
  `order_num` int(11) UNSIGNED NULL DEFAULT 1 COMMENT '顺序 ',
  `status` int(1) NOT NULL DEFAULT 0 COMMENT '状态(0:正常 1:锁定)',
  `del_flag` int(1) NOT NULL DEFAULT 0 COMMENT '逻辑删除标记(0 未删除 1 已删除)',
  `create_time` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '创建时间',
  `update_time` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '系统字典表' ROW_FORMAT = Dynamic;

数据

2.Beetl自定义html标签

开始写标签

(1)自己写一个类继承org.beetl.core.GeneralVarTagBinding;

public class Dictionary extends GeneralVarTagBinding {
    private final static Logger logger = LoggerFactory.getLogger(Dictionary.class);

    @Override
    public void render() {
        Map atters = (Map) args[1];
        String value = (String) atters.get("attr");//接收值
        logger.debug(value);
        //模拟数据库查询
        List<SysDictionary> list = new ArrayList<>();
        SysDictionary s1 = new SysDictionary();
        s1.setDictionaryValue("男");
        s1.setDictionaryCode("0");
        list.add(s1);
        SysDictionary s2 = new SysDictionary();
        s2.setDictionaryValue("女");
        s2.setDictionaryCode("1");
        list.add(s2);
        this.binds(""+list.get(0).getDictionaryValue()+"" +
                ""+list.get(1).getDictionaryValue()+"");
        this.doBodyRender();
    }
}

(2)把你的类加入到beetl的配置文件

加入到beetl.properties.并起一个名字

#自定义标签 必须TAG开头
TAG.dictionary= com.yuanpeng.congfig.beetl.tag.Dictionary

然后注册这个组件(我是在BeetlConfig里配置的,这个java类是用来把beetl加入ioc容器里的,我是这么理解的也不知道对不对)

@Bean
    public GroupTemplate getGroupTemplate(BeetlGroupUtilConfiguration beetlGroupUtilConfiguration) throws IOException {
        GroupTemplate gt = beetlGroupUtilConfiguration.getGroupTemplate();
        Map<String,Object> shared = new HashMap<>();

        //测试
        shared.put("blogSiteTitle",templatesPath);
        gt.setSharedVars(shared);
        // 注册国家化函数
        gt.registerFunction("i18n", new I18nFunction(wac));
        //注册shiro
        gt.registerFunctionPackage("so", new ShiroExt());
        //注册自定义标签
        gt.registerTag("dictionary", Dictionary.class);
        return gt;
    }

(3)最后一步前台标签

	<select name="rolename" lay-filter="LAY-user-adminrole-type">
		<#dictionary attr="asdf" ; value>
              *[value]
        </#dictionary>
    </select>     
    
        <!--注:这个*[ ] 是我修改了这里
        #指定变量占位符的开始符号 ${
		DELIMITER_PLACEHOLDER_START=*[
		#指定变量占位符的结束符号}
		DELIMITER_PLACEHOLDER_END=]
		-->

3效果图