数据字典缓存到内存

src/app/services/main.service.ts

@@ -2,6 +2,8 @@ import { Injectable } from "@angular/core";
 import { HttpClient, HttpHeaders } from "@angular/common/http";
 
 import host from "../../assets/js/http";
+import { resolve } from "q";
+import { Observable } from "rxjs";
 
 @Injectable({
   providedIn: "root",
@@ -45,14 +47,34 @@ export class MainService {
     });
   }
   // 字典表
+  cachedDictionary = {}; //缓存到内存的字典
   getDictionary(type, key): any {
     const data = {
       type: type,
       key: key,
     };
-    return this.http.post(host.host + "/common/common/getDictionary", data, {
-      headers: this.headers,
-    });
+    console.log(this.cachedDictionary, "------------db");
+    if (this.cachedDictionary[key]) {
+      return new Observable((observer) => {
+        observer.next(this.cachedDictionary[key]);
+      });
+    } else {
+      return new Observable((observer) => {
+        this.http
+          .post(host.host + "/common/common/getDictionary", data, {
+            headers: this.headers,
+          })
+          .subscribe((result) => {
+            this.cachedDictionary[key] = result;
+            observer.next(result);
+          });
+      });
+    }
+  }
+  //清除字典表缓存
+  clearDictionary() {
+    this.cachedDictionary = {};
+    console.log(this.cachedDictionary, "------clearDb");
   }
   // 列表搜索（通用）
   getFetchDataList(type, target, data): any {

src/app/views/order-management/order-management.component.ts

@@ -124,6 +124,8 @@ export class OrderManagementComponent implements OnInit {
   // 获取关联类型
   getAssociation() {
     let that = this;
+    console.log(that.mainService
+      .getDictionary("list", "association_types"))
     that.mainService
       .getDictionary("list", "association_types")
       .subscribe((data) => {

src/app/views/sys-config/sys-config.component.ts

@@ -73,6 +73,7 @@ export class SysConfigComponent implements OnInit {
       (result) => {
         this.loading3 = false;
         if (result.status == 200) {
+          this.mainService.clearDictionary();
           this.showPromptModal("刷新", true, "");
         } else {
           this.showPromptModal("刷新", false, "");