[add] 新增无人机模块后端项目

[refactor] 重构后端项目

drone/ruoyi-admin/src/main/resources/index.js

@@ -0,0 +1,82 @@
+class ImageStore {
+    constructor(dbName = 'imageDatabase', storeName = 'images') {
+        this.dbName = dbName;
+        this.storeName = storeName;
+        this.db = null;
+    }
+
+    // 初始化IndexedDB数据库
+    async initDB() {
+        return new Promise((resolve, reject) => {
+            const request = window.indexedDB.open(this.dbName, 1);
+
+            request.onupgradeneeded = (event) => {
+                const db = event.target.result;
+                if (!db.objectStoreNames.contains(this.storeName)) {
+                    db.createObjectStore(this.storeName, { keyPath: 'url' });
+                }
+            };
+
+            request.onsuccess = (event) => {
+                this.db = event.target.result;
+                resolve(this.db);
+            };
+
+            request.onerror = (event) => {
+                console.error("Error opening IndexedDB:", event);
+                reject(event);
+            };
+        });
+    }
+
+    // 存储Base64图片
+    async storeImage(url, base64Data) {
+        return new Promise(async (resolve, reject) => {
+            if (!this.db) {
+                await this.initDB();
+            }
+
+            const transaction = this.db.transaction([this.storeName], 'readwrite');
+            const store = transaction.objectStore(this.storeName);
+
+            const request = store.put({ url, base64Data });
+
+            request.onsuccess = () => {
+                resolve(true);
+            };
+
+            request.onerror = (event) => {
+                console.error("Error storing image:", event);
+                reject(event);
+            };
+        });
+    }
+
+    // 根据URL获取Base64图片
+    async getImage(url) {
+        return new Promise(async (resolve, reject) => {
+            if (!this.db) {
+                await this.initDB();
+            }
+
+            const transaction = this.db.transaction([this.storeName], 'readonly');
+            const store = transaction.objectStore(this.storeName);
+
+            const request = store.get(url);
+
+            request.onsuccess = (event) => {
+                const result = event.target.result;
+                if (result) {
+                    resolve(result.base64Data);
+                } else {
+                    resolve(null);  // 如果没有找到图片，返回null
+                }
+            };
+
+            request.onerror = (event) => {
+                console.error("Error retrieving image:", event);
+                reject(event);
+            };
+        });
+    }
+}