后台：增加后台数据库表，修复连接问题

gm-server/app.ts

@@ -48,18 +48,28 @@ export default class FooBoot implements IBoot {
 
   public async connectDB(app: Application) {
     const { url, options } = app.config.mongoose
-    if (url) {
-      const connection = await mongoose.connect(url, options)
-      app.context.connection = connection
+    try {
+      if (url) {
+        const connection = await mongoose.connect(url, options)
+        console.log('******connectDB suc', url, options)
+        app.context.connection = connection
+      }
+    } catch(e) {
+      console.log(e)
     }
   }
 
   public async connectGMDB(app: Application) {
     const { url, options } = app.config.gmmongoose
-    if (url) {
-      const connection = await mongoose.createConnection(url, options)
-      app.context.connectionGM = connection;
-      loadGmDb(connection);
+    try {
+      if (url) {
+        const connection = await mongoose.createConnection(url, options)
+        app.context.connectionGM = connection;
+        loadGmDb(connection);
+        console.log('******connectGMDB suc', url, options)
+      }
+    } catch(e) {
+      console.log(e)
     }
   }