1. 增加字典数据的缓存与 util

2. 引入 Excel 组件

src/main/java/cn/iocoder/dashboard/modules/system/service/dict/SysDictDataService.java

@@ -1,6 +1,7 @@
 package cn.iocoder.dashboard.modules.system.service.dict;
 
 import cn.iocoder.dashboard.common.pojo.PageResult;
+import cn.iocoder.dashboard.framework.dict.core.service.DictDataFrameworkService;
 import cn.iocoder.dashboard.modules.system.controller.dict.vo.data.SysDictDataCreateReqVO;
 import cn.iocoder.dashboard.modules.system.controller.dict.vo.data.SysDictDataPageReqVO;
 import cn.iocoder.dashboard.modules.system.controller.dict.vo.data.SysDictDataUpdateReqVO;
@@ -13,8 +14,18 @@ import java.util.List;
  *
  * @author ruoyi
  */
-public interface SysDictDataService {
+public interface SysDictDataService extends DictDataFrameworkService {
 
+    /**
+     * 初始化，主要是初始化缓存
+     */
+    void init();
+
+    /**
+     * 获得字典数据列表
+     *
+     * @return 字典数据全列表
+     */
     List<SysDictDataDO> listDictDatas();
 
     /**

src/main/java/cn/iocoder/dashboard/modules/system/service/dict/impl/SysDictDataServiceImpl.java

@@ -12,9 +12,11 @@ import cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.dict.SysDictData
 import cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.dict.SysDictTypeDO;
 import cn.iocoder.dashboard.modules.system.service.dict.SysDictDataService;
 import cn.iocoder.dashboard.modules.system.service.dict.SysDictTypeService;
+import com.google.common.collect.ImmutableTable;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
+import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
 
@@ -32,12 +34,42 @@ public class SysDictDataServiceImpl implements SysDictDataService {
             .comparing(SysDictDataDO::getDictType)
             .thenComparingInt(SysDictDataDO::getSort);
 
+    /**
+     * 字典数据缓存，第二个 key 使用 label
+     *
+     * key1：字典类型 dictType
+     * key2：字典标签 label
+     */
+    private ImmutableTable<String, String, SysDictDataDO> labelDictDataCache;
+    /**
+     * 字典数据缓存，第二个 key 使用 value
+     *
+     * key1：字典类型 dictType
+     * key2：字典值 value
+     */
+    private ImmutableTable<String, String, SysDictDataDO> valueDictDataCache;
+
     @Resource
     private SysDictTypeService dictTypeService;
 
     @Resource
     private SysDictDataMapper dictDataMapper;
 
+    @Override
+    public void init() {
+        // 获得字典数据
+        List<SysDictDataDO> list = this.listDictDatas();
+        // 构建缓存
+        ImmutableTable.Builder<String, String, SysDictDataDO> labelDictDataBuilder = ImmutableTable.builder();
+        ImmutableTable.Builder<String, String, SysDictDataDO> valueDictDataBuilder = ImmutableTable.builder();
+        list.forEach(dictData -> {
+            labelDictDataBuilder.put(dictData.getDictType(), dictData.getLabel(), dictData);
+            valueDictDataBuilder.put(dictData.getDictType(), dictData.getValue(), dictData);
+        });
+        labelDictDataCache = labelDictDataBuilder.build();
+        valueDictDataCache = valueDictDataBuilder.build();
+    }
+
     @Override
     public List<SysDictDataDO> listDictDatas() {
         List<SysDictDataDO> list = dictDataMapper.selectList();
@@ -130,4 +162,19 @@ public class SysDictDataServiceImpl implements SysDictDataService {
         }
     }
 
+    @Override
+    public SysDictDataDO getDictDataFromCache(String type, String value) {
+        return valueDictDataCache.get(type, value);
+    }
+
+    @Override
+    public SysDictDataDO parseDictDataFromCache(String type, String label) {
+        return labelDictDataCache.get(type, label);
+    }
+
+    @Override
+    public List<SysDictDataDO> listDictDatasFromCache(String type) {
+        return new ArrayList<>(labelDictDataCache.row(type).values());
+    }
+
 }