Use crypto-js encryption and decryption
The first step is to install
npm install crypto-js
The second step is to import in the vue component you need
import CryptoJS from “crypto-js”;
The third step is to use
// Encrypt 加密
var cipherText = CryptoJS.AES.encrypt(
"my message",
"secretkey123"
).toString();
console.log(cipherText)
// Decrypt 解密
var bytes = CryptoJS.AES.decrypt(cipherText, "secretkey123");
var originalText = bytes.toString(CryptoJS.enc.Utf8);
console.log(originalText); // 'my message'
Note that this mymessage is a string, if you want to encrypt the user id (number type), you must first convert it into a string
For more usage, please visit the official document
Remember password
- The realization principle is that when logging in, if you check the remember password (save the "remember password" state to localstorage), save the account password to cookies;
- After entering the login page, judge whether the password is remembered (judging from localstorage), if the password is remembered, export cookies to the form;
The setcookie method is used for saving, and the getcookie method is used for taking out.
ok, let's write the method
//设置cookie
setCookie(portId, psw, exdays) {
// Encrypt，加密账号密码
var cipherPortId = CryptoJS.AES.encrypt(
portId+'',
"secretkey123"
).toString();
var cipherPsw = CryptoJS.AES.encrypt(psw+'', "secretkey123").toString();
console.log(cipherPortId+'/'+cipherPsw)//打印一下看看有没有加密成功
var exdate = new Date(); //获取时间
exdate.setTime(exdate.getTime() + 24 * 60 * 60 * 1000 * exdays); //保存的天数
//字符串拼接cookie，为什么这里用了==，因为加密后的字符串也有个=号，影响下面getcookie的字符串切割，你也可以使用更炫酷的符号。
window.document.cookie =
"currentPortId" +
"==" +
cipherPortId +
";path=/;expires=" +
exdate.toGMTString();
window.document.cookie =
"password" +
"==" +
cipherPsw +
";path=/;expires=" +
exdate.toGMTString();
},
//读取cookie
getCookie: function() {
if (document.cookie.length > 0) {
var arr = document.cookie.split("; "); //这里显示的格式请根据自己的代码更改
for (var i = 0; i < arr.length; i++) {
var arr2 = arr[i].split("=="); //根据==切割
//判断查找相对应的值
if (arr2[0] == "currentPortId") {
// Decrypt，将解密后的内容赋值给账号
var bytes = CryptoJS.AES.decrypt(arr2[1], "secretkey123");
this.currentPortId = bytes.toString(CryptoJS.enc.Utf8);
} else if (arr2[0] == "password") {
// Decrypt，将解密后的内容赋值给密码
var bytes = CryptoJS.AES.decrypt(arr2[1], "secretkey123");
this.password = bytes.toString(CryptoJS.enc.Utf8);
}
}
}
},
//清除cookie
clearCookie: function() {
this.setCookie("", "", -1);
}
The method of login is as follows:
login() {
this.$http //请根据实际情况修改该方法
.post(...)
.then(res => {
if (res.data.code == "success") {
if (this.rememberPsw == true) {
//判断用户是否勾选了记住密码选项rememberPsw，传入保存的账号currentPortId，密码password，天数30
this.setCookie(this.currentPortId, this.password, 30);
}else{
this.clearCookie();
}
//这里是因为要在created中判断，所以使用了localstorage比较简单，当然你也可以直接根据cookie的长度or其他骚操作来判断有没有记住密码。
localStorage.setItem("rememberPsw", this.rememberPsw);
} else {
//----
}
})
.catch(err => {
//----
});
},
Finally, it is necessary to determine whether the user has remembered the password in the created hook function to perform related operations
//判断是否记住密码
//**注意这里的true是字符串格式，因为Boolean存进localstorage中会变成String**
created() {
//判断是否记住密码
if (localStorage.getItem("rememberPsw") == 'true') {
this.getCookie();
}
}
Finally, the interface is posted, where rememberPsw is the v-model value of the remember password button, currentPortId is the v-model value of the first box, and password is the v-model value of the second box.
