增加保存失败时的弹窗提示

src/app/service/babylon/building-basic-infos.service.ts

@@ -172,10 +172,13 @@ export class BuildingBasicInfosService {
     let l_body = `'${bodyString}'`;
     //兼容换行符
     l_body = l_body.replace(/\\n/g, "\\\\n");
-
+    let instance = this;
     return this.http.post<any>(api + this.c_post, l_body, { headers, params })
       .pipe(
-        catchError((err) => this.handleError(err))
+        catchError((err) => {
+          alert("保存失败,错误：" + err.status);
+          return instance.handleError(err);
+        })
       );
   }