fix: DEC-9989 && DEC-10011 默认选中第一个数据连接，无数据连接时显示为空

src/modules/pages/connection/list/list.model.ts

@@ -14,11 +14,16 @@ export class ConnectionListModel extends Model<{
 
     actions = {
         setConnections: ():Promise<void> => api.getConnectionlist().then(data => {
+            if (BI.size(data.data) > 0) {
                 this.model.connections = data.data;
                 this.model.connections.forEach(item => {
                 // 后端传过来的是字符串，转为对象
                     item.connectionData = JSON.parse(item.connectionData);
                 });
+                this.model.connectionSelected = data.data[0].connectionName;
+            } else {
+                this.model.connectionSelected = '';
+            }
             
             return new Promise(resolve => {
                 resolve();

src/modules/pages/connection/list/list.ts

@@ -68,13 +68,14 @@ export class ConnectionList extends BI.LoadingPane {
     }
 
     private renderList(start = 0, end = 0) {
-        return this.model.connections.slice(start, end).map((item: Connection) => {
+        return this.model.connections.slice(start, end).map((item: Connection, index: number) => {
             return {
                 type: ListItemXtype,
                 name: item.connectionName,
                 value: item.connectionName,
                 creator: getCreator(item),
                 databaseType: getDatabaseType(item),
+                selected: this.model.connectionSelected ? this.model.connectionSelected === item.connectionName : index === 0,
             };
         });
     }