本文以 Spring Boot 应用、MySQL 数据库为例。

数据字典表：

-- 数据字典表
DROP TABLE
    IF EXISTS `dictionary`;

CREATE TABLE `dictionary`
(
    `id`                     BIGINT(20) UNSIGNED AUTO_INCREMENT COMMENT 'id',
    `key`                    VARCHAR(255)        NOT NULL COMMENT '字典键',
    `key_name`               VARCHAR(255)        NOT NULL COMMENT '字典键名',
    `value_name`             VARCHAR(255)        NOT NULL COMMENT '字典值名',
    `value_slug`             VARCHAR(255)        NOT NULL COMMENT '字典值别名',
    `value`                  TEXT COMMENT '字典值',
    `editable`               TINYINT(1) UNSIGNED DEFAULT NULL COMMENT '是否可编辑（0=不可编辑，1=可编辑，默认=1）',
    `dictionary_category_id` BIGINT(20) UNSIGNED NOT NULL COMMENT '字典分类 id',
    `sort`                   BIGINT(20) UNSIGNED DEFAULT 0 COMMENT '排序',
    `remark`                 VARCHAR(255)        DEFAULT '' COMMENT '备注',
    `gmt_modified`           DATETIME            DEFAULT NOW() COMMENT '更新时间',
    `gmt_created`            DATETIME            DEFAULT NOW() COMMENT '创建时间',
    PRIMARY KEY (`id`)
)
    ENGINE = INNODB
    DEFAULT CHARACTER
        SET = utf8mb4
    COLLATE = utf8mb4_general_ci
    AUTO_INCREMENT = 1
    ROW_FORMAT = DYNAMIC
    COMMENT = '数据字典表';

数据字典分类表：

-- 数据字典分类表
DROP TABLE
    IF EXISTS `dictionary_category`;

CREATE TABLE `dictionary_category`
(
    `id`           BIGINT(20) UNSIGNED AUTO_INCREMENT COMMENT 'id',
    `name`         VARCHAR(255) NOT NULL COMMENT '分类名称',
    `parent_id`    BIGINT(20) UNSIGNED DEFAULT NULL COMMENT '父级分类 id',
    `sort`         BIGINT(20)          DEFAULT 0 COMMENT '排序',
    `remark`       VARCHAR(255)        DEFAULT '' COMMENT '备注',
    `gmt_modified` DATETIME            DEFAULT NOW() COMMENT '更新时间',
    `gmt_created`  DATETIME            DEFAULT NOW() COMMENT '创建时间',
    PRIMARY KEY (`id`)
)
    ENGINE = INNODB
    DEFAULT CHARACTER
        SET = utf8mb4
    COLLATE = utf8mb4_general_ci
    AUTO_INCREMENT = 1
    ROW_FORMAT = DYNAMIC
    COMMENT = '数据字典分类表';

数据字典表对应的实体类：

package com.gioov.spiny.system.entity;

import java.io.Serializable;
import java.util.Date;

/**
 * @author godcheese
 * @date 2018/4/23 20:44
 */
public class DictionaryEntity implements Serializable {

    private static final long serialVersionUID = -4000696333938261490L;

    /**
     * id
     */
    private Long id;

    /**
     * 字典键
     */
    private String key;

    /**
     * 字典键名
     */
    private String keyName;

    /**
     * 字典值名
     */
    private String valueName;

    /**
     * 字典值别名
     */
    private String valueSlug;

    /**
     * 字典值
     */
    private String value;

    /**
     * 是否可编辑
     */
    private Integer editable;

    /**
     * 字典分类 id
     */
    private Long dictionaryCategoryId;

    /**
     * 排序
     */
    private Long sort;

    /**
     * 备注
     */
    private String remark;

    /**
     * 更新时间
     */
    private Date gmtModified;

    /**
     * 创建时间
     */
    private Date gmtCreated;


    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getKey() {
        return key;
    }

    public void setKey(String key) {
        this.key = key;
    }

    public String getKeyName() {
        return keyName;
    }

    public void setKeyName(String keyName) {
        this.keyName = keyName;
    }

    public String getValueName() {
        return valueName;
    }

    public void setValueName(String valueName) {
        this.valueName = valueName;
    }

    public String getValueSlug() {
        return valueSlug;
    }

    public void setValueSlug(String valueSlug) {
        this.valueSlug = valueSlug;
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }

    public Integer getEditable() {
        return editable;
    }

    public void setEditable(Integer editable) {
        this.editable = editable;
    }

    public Long getDictionaryCategoryId() {
        return dictionaryCategoryId;
    }

    public void setDictionaryCategoryId(Long dictionaryCategoryId) {
        this.dictionaryCategoryId = dictionaryCategoryId;
    }

    public Long getSort() {
        return sort;
    }

    public void setSort(Long sort) {
        this.sort = sort;
    }

    public String getRemark() {
        return remark;
    }

    public void setRemark(String remark) {
        this.remark = remark;
    }

    public Date getGmtModified() {
        return gmtModified;
    }

    public void setGmtModified(Date gmtModified) {
        this.gmtModified = gmtModified;
    }

    public Date getGmtCreated() {
        return gmtCreated;
    }

    public void setGmtCreated(Date gmtCreated) {
        this.gmtCreated = gmtCreated;
    }

}

数据字典分类表对应的实体类：

package com.gioov.spiny.system.entity;

import java.io.Serializable;
import java.util.Date;

/**
 * @author godcheese
 * @date 2018/5/23
 */
public class DictionaryCategoryEntity implements Serializable {

    private static final long serialVersionUID = -5867777461580679038L;

    private Long id;

    /**
     * 分类名称
     */
    private String name;

    /**
     * 父级分类 id
     */
    private Long parentId;

    /**
     * 排序
     */
    private Long sort;

    /**
     * 备注
     */
    private String remark;

    /**
     * 更新时间
     */
    private Date gmtModified;

    /**
     * 创建时间
     */
    private Date gmtCreated;


    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Long getParentId() {
        return parentId;
    }

    public void setParentId(Long parentId) {
        this.parentId = parentId;
    }

    public Long getSort() {
        return sort;
    }

    public void setSort(Long sort) {
        this.sort = sort;
    }

    public String getRemark() {
        return remark;
    }

    public void setRemark(String remark) {
        this.remark = remark;
    }

    public Date getGmtModified() {
        return gmtModified;
    }

    public void setGmtModified(Date gmtModified) {
        this.gmtModified = gmtModified;
    }

    public Date getGmtCreated() {
        return gmtCreated;
    }

    public void setGmtCreated(Date gmtCreated) {
        this.gmtCreated = gmtCreated;
    }

}