[web-app] http拦截器修改，新增监控页面编码

web-app/src/app/service/local-storage.service.ts

@@ -0,0 +1,29 @@
+import { Injectable } from '@angular/core';
+
+const Authorization = 'Authorization';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class LocalStorageService {
+
+  constructor() { }
+
+  public putData(key: string, value: string) {
+    localStorage.setItem(key, value);
+  }
+
+  public getData(key: string): string | null {
+    const data = localStorage.getItem(key);
+    return data === null ? null : data;
+  }
+
+  public getAuthorizationToken(): string | null {
+    return this.getData(Authorization);
+  }
+
+  public storageAuthorizationToken(token: string) {
+    return this.putData(Authorization, token);
+  }
+
+}