初始化

common/common.js

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+import { encryptDes , decryptDes } from "./cryptoJs.js" //des加密 解密
+
+export default {
+	/*设置本地缓存 返回加密后的值*/
+	setCacheToken(key, value){
+		//转为json字符串
+		var info = JSON.stringify(value);
+		try {
+		    uni.setStorageSync(key, encryptDes(info,key))
+			return {info:"保存成功", status:1}
+		} catch (error) {
+		    return {info:error, status:0}
+		}
+	},
+	/*获取本地缓存 返回解密后的值*/
+	getCacheToken(key){
+		var info = decryptDes(uni.getStorageSync(key),key)
+		//json字符串长度
+		if(Object.keys(info).length > 1){
+			//json转为对象数组
+			return JSON.parse(info)
+		}
+		return info
+	},
+	/**
+	 * 是否登录
+	 * @param {bool} isToNav 是否跳转
+	 */
+	isLogin(isToNav){
+		isToNav = isToNav || false
+		//用户信息
+		const userInfo = this.getCacheToken("userInfo")
+		//如果未登录, 跳转到登录
+		if(!userInfo){
+			uni.showToast({ title: "请登陆后操作", icon: "none" });
+			if(isToNav){
+				setTimeout(()=>{uni.reLaunch({ url: "/pages/user/user" })}, 1000)
+			}
+			return false
+		}
+		return true
+	}
+}

common/cryptoJs.js

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+//import CryptoJS from '@/../node_modules/crypto-js/crypto-js.js'
+import CryptoJS from "./js/crypto-js.js";
+ 
+// DES加密
+export const encryptDes = (message, key) => {
+  const keyHex = CryptoJS.enc.Utf8.parse(key);
+  const encrypted = CryptoJS.DES.encrypt(message, keyHex, {
+	   mode: CryptoJS.mode.ECB,
+	   padding: CryptoJS.pad.Pkcs7
+  });
+  return encrypted.toString();
+}
+ 
+// DES解密
+export const decryptDes = (ciphertext, key) => {
+  const keyHex = CryptoJS.enc.Utf8.parse(key);
+  // direct decrypt ciphertext
+  const decrypted = CryptoJS.DES.decrypt({
+		ciphertext: CryptoJS.enc.Base64.parse(ciphertext)
+   }, keyHex, {
+		mode: CryptoJS.mode.ECB,
+		padding: CryptoJS.pad.Pkcs7
+   });
+   return decrypted.toString(CryptoJS.enc.Utf8);
+}