[数据模型]补充注释

src/main/java/com/tykj/workflowcore/model_layer/service/impl/ModelHelper.java

@@ -20,6 +20,9 @@ import java.util.Map;
 
 import static java.lang.String.format;
 
+/**
+ * @author C
+ */
 @Service
 public class ModelHelper {
 
@@ -40,10 +43,12 @@ public class ModelHelper {
      */
     public String getJsonExpample(Integer tableInfoId) {
         Map<String, Object> result = new HashMap<>();
+        //根据表id查出字段信息 并加入Map结果
         List<ColumnInfo> columnInfos = columnInfoDao.findAllByDbId(tableInfoId);
         for (ColumnInfo columnInfo : columnInfos) {
             result.put(columnInfo.getFieldName(), null);
         }
+        //做json转换并返回
         try {
             return new ObjectMapper().writeValueAsString(result);
         } catch (JsonProcessingException e) {
@@ -62,10 +67,12 @@ public class ModelHelper {
         Map<String, Object> result = new HashMap<>();
         TableInfoEx tableInfoEX = tableInfoExDao.findById(tableInfoExId)
                 .orElseThrow(() -> new ApiException(format("未找到该id的数据:%s", tableInfoExId)));
+        //根据主表id查出主表部分字段信息 并加入Map结果
         List<ColumnInfo> columnInfos = columnInfoDao.findAllByDbId(tableInfoEX.getMainTableId());
         for (ColumnInfo columnInfo : columnInfos) {
             result.put(columnInfo.getFieldName(), null);
         }
+        //查出相关聚合信息并做处理
         List<Aggregation> aggregations = aggregationDao.findAllByTableInfoExId(tableInfoExId);
         for (Aggregation aggregation : aggregations) {
             List<ColumnInfo> subColumnInfos = columnInfoDao.findAllByDbId(aggregation.getSideTableId());
@@ -76,6 +83,7 @@ public class ModelHelper {
             String subTableName = tableInfoDao.findById(aggregation.getSideTableId())
                     .orElseThrow(() -> new RuntimeException(format("未找到该id的数据:%s", aggregation.getSideTableId())))
                     .getModelName();
+            //判断关联类型 根据关联类型做不同处理 0:一对一 1:一对多 2:多对多
             Integer relationshipType = aggregation.getRelationship();
             switch (relationshipType) {
                 case 0:
@@ -91,6 +99,7 @@ public class ModelHelper {
                     throw new ApiException(format("未识别的聚合类型:%s", relationshipType));
             }
         }
+        //做json转换并返回
         try {
             return new ObjectMapper().writeValueAsString(result);
         } catch (JsonProcessingException e) {

src/main/resources/application.yml

 spring:
   datasource:
     username: root
-    password: Huang123+
-    url: jdbc:mysql://47.106.142.73:3306/www?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf-8&nullCatalogMeansCurrent=true
+    password: 123456
+    url: jdbc:mysql://localhost:3306/mydata?useSSL=false&serverTimezone=UTC&characterEncoding=utf-8&nullCatalogMeansCurrent=true
     driver-class-name: com.mysql.cj.jdbc.Driver
   jpa:
     show-sql: true