vue开发axios请求 用SM2加密，解密

import axios from "axios";
import { Message } from 'element-ui'
// 地址
// let baseUrl = 'http://'
let username = 'sesp1'
//加解密开关
window.ENCRYPT=false
/*公钥*/
var publicKey="";
/*私钥*/
var privateKey=""

/*分割字符串*/
function splitStr (str) {
    var len = Math.ceil(str.length / 500)
    var arr = Array(len)
    var i = 0
    for (; i < len; i++) {
        // console.log('index: %s, len: %s, str: %s', i, len, str.length)
        arr[i] = str.substring(0, 500)
        if (i < len) {
            str = str.substring(500, str.length)
        }
    }
    return arr
}
/**
 * SM2加密
 */
function encryptSM2 (word) {

    var str = btoa(encodeURIComponent(JSON.stringify(word)))
    var arrStr = splitStr(str).map(s => window.SG_sm2Encrypt(s, publicKey))
    return arrStr.join('|')
}

/**
 * SM3哈希
 */
 function encryptSM3 (word) {
    return window.SG_sm3encrypt(word)
}
/**
 * SM2解密
 */
function decryptSM2$$2 (word) {
    var strs = word.split('|').map(s => window.SG_sm2Decrypt(s, privateKey))
    var json=JSON.parse(decodeURIComponent(atob(strs.join(''))))
    return json
}

const service = axios.create({
    baseURL: baseUrl, // api 的 base_url

});


//1.添加请求拦截器
service.interceptors.request.use((config) => {
    config.url = config.baseURL + config.url;
    if (config.data.username && config.data.username == 'sesp1') {
        config.data.username = username
    }
    //请求数据
    let baseParams=config.data;
    // console.log("基本参数",baseParams)
    let savelogParams={};
    // console.log("埋点参数",savelogParams)

    //headers封装
    config.headers={
        y:new Date().getTime(),
    };
    //埋點加密參數  注：SM3后面的参数是集成参数
    let secSavelogParams=window.ENCRYPT?encryptSM2(savelogParams):savelogParams

    if(window.ENCRYPT){
      config.data={
        iespsm:encryptSM2(baseParams),
        timestamp:new Date().getTime()
      };
      config.headers["SignSM3"]=encryptSM3(JSON.stringify(config.data)+secSavelogParams)
    }
    config.headers["buried"]=(window.ENCRYPT)?secSavelogParams:encodeURIComponent(JSON.stringify(savelogParams))
      if (window.sessionStorage.getItem("JWT")) {
          config.headers.Authorization = window.sessionStorage.getItem("JWT")
      }
    return config;
    }, (error) => {
    Message({
        showClose: true,
        message: '网络错误，请稍后重试！',
        type: "warning"
    });
    return Promise.reject(error);
});
//2.添加响应拦截器
service.interceptors.response.use((res) => {
    if(window.ENCRYPT){
        /*判断解密*/
        if(null!=res.data.iespData&&undefined!=res.data.iespData){
            res.data=decryptSM2$$2(res.data.iespData)
        }    
    }
    // console.log("响应数据",res) 
    return res;
}, (error) => {
    Message({
        showClose: true,
        message: '网络错误，请稍后重试！',
        type: "warning"
    });
    return Promise.reject(error);
});


export default service;

在main.js中引入sm.js；静态文件注入需放在public下的static目录下