前端vue使用base64对login传入的密码进行cookie加密

• vue的data部分
• vue对应的 methods（工具）部分
• vue对应的 methods（读写）部分

vue的data部分

// 使用base64对存入cookie的密码进行加密
　　　　 //加密策略参数设置
      base64EncodeChars : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
      base64DecodeChars : new Array(
          -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
          -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
          -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
          52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
          -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
          15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
          -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
          41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1),

vue对应的 methods（工具）部分

//加密方法
          base64encode(str) {
            var out, i, len;
            var c1, c2, c3;
            len = str.length;
            i = 0;
            out = "";
            while(i < len) {
                c1 = str.charCodeAt(i++) & 0xff;
                if(i == len) {
                    out += this.base64EncodeChars.charAt(c1 >> 2);
                    out += this.base64EncodeChars.charAt((c1 & 0x3) << 4);
                    out += "==";
                    break;
                }
                c2 = str.charCodeAt(i++);
                if(i == len) {
                    out += this.base64EncodeChars.charAt(c1 >> 2);
                    out += this.base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
                    out += this.base64EncodeChars.charAt((c2 & 0xF) << 2);
                    out += "=";
                    break;
                }
                c3 = str.charCodeAt(i++);
                out += this.base64EncodeChars.charAt(c1 >> 2);
                out += this.base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
                out += this.base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6));
                out += this.base64EncodeChars.charAt(c3 & 0x3F);
            }
            return out;
        },

         //解密方法
          base64decode(str){
            var c1, c2, c3, c4;
            var i, len, out;
            len = str.length;
            i = 0;
            out = "";
            while (i < len) {
                 /* c1 */
                do {
                    c1 = this.base64DecodeChars[str.charCodeAt(i++) & 0xff];
                }
                while (i < len && c1 == -1);
                if (c1 == -1)
                    break;
                 /* c2 */
                do {
                    c2 = this.base64DecodeChars[str.charCodeAt(i++) & 0xff];
                }
                while (i < len && c2 == -1);
                if (c2 == -1)
                    break;
                out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));
                 /* c3 */
                do {
                    c3 = str.charCodeAt(i++) & 0xff;
                    if (c3 == 61)
                        return out;
                    c3 = this.base64DecodeChars[c3];
                }
                while (i < len && c3 == -1);
                if (c3 == -1)
                    break;
                out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
                 /* c4 */
                do {
                    c4 = str.charCodeAt(i++) & 0xff;
                    if (c4 == 61)
                        return out;
                    c4 = this.base64DecodeChars[c4];
                }
                while (i < len && c4 == -1);
                if (c4 == -1)
                    break;
                out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
            }
            return out;
        }

vue对应的 methods（读写）部分

重点关注 ：《------------修改写入/获取 base64转换--------------》 这两个部分

login() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true;
          api
            .Signin(this.user.password, this.user.phone)
            .then((res) => {
              this.loading = false;
              if (res.data.code == 200) {
                let date = new Date();
                let times = `${date.getFullYear()}-${
                  date.getMonth() + 1
                }-${date.getDate()}-${date.getHours()}-${date.getMinutes()}`;
                localStorage.setItem("loginTIme", times);
                localStorage.setItem("userId", res.data.data.userId);
                localStorage.setItem("username", res.data.data.username);
                localStorage.setItem("token", res.data.data.token);
                localStorage.setItem("phone", res.data.data.phone);
                localStorage.setItem("appToken", res.data.data.appToken);
                getUserDetail(res.data.data.userId).then((res) => {
                  if ("超级管理员" == res.data.name) {
                    localStorage.setItem("permission", "超级管理员");
                  } else {
                    let str = "";
                    for (let i = 0; i < res.data.roles.length; i++) {
                      for (
                        let j = 0;
                        j < res.data.roles[i].permissions.length;
                        j++
                      ) {
                        str += " " + res.data.roles[i].permissions[j].code;
                      }
                    }
                    localStorage.setItem("permission", str);
                  }
                  this.$router.replace("/homepage");
                });
              } else {
                this.$message.error(res.data.message);
              }
            })
            .catch(() => {
              this.loading = false;
            });
        }
      });
      //判断复选框是否被勾选 勾选则调用配置cookie方法
      if (this.remember == true) {
        //传入账号名，密码，和保存天数3个参数
        《-------------修改写入的密码base64转换--------------》
        this.user.password = this.base64encode( this.user.password);
        this.setCookie(this.user.phone, this.user.password, 3);
      } else {
        //清空Cookie
        this.clearCookie();
      }
    },
    //设置cookie
    setCookie(c_name, c_pwd, exdays) {
      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
      window.document.cookie =
        "phone" + "=" + c_name + ";path=/;expires=" + exdate.toGMTString();
      window.document.cookie =
        "password" + "=" + c_pwd + ";path=/;expires=" + exdate.toGMTString();
    },
    //读取cookie
    getCookie: function () {
      if (document.cookie.length > 0) {
        var arr = document.cookie.split("; "); 
        for (var i = 0; i < arr.length; i++) {
          var arr2 = arr[i].split("="); 
          //判断查找相对应的值
          if (arr2[0] == "phone") {
            this.user.phone = arr2[1]; //保存到保存数据的地方
          } else if (arr2[0] == "password") {
            this.user.password = arr2[1];
            《-------------读取并转换base64--------------》
            this.user.password = this.base64decode(this.user.password);
          }
        }
      }
      if (this.user.phone != "" && this.user.password != "") {
        this.remember = true;
      } else {
        this.remember = false;
      }
    },
    //清除cookie
    clearCookie: function () {
      this.setCookie("", "", -1); //修改2值都为空，天数为负1天实现清除
    },

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