var API_URL = "自己的服务器地址";
Page({
  onLoad: function () {
  console.log("iv");
  wx.login({//login流程
  success: function (res) {//登录成功
    if (res.code) {
      var code = res.code;
      wx.getUserInfo({//getUserInfo流程
        success: function (res2) {//获取userinfo成功
        console.log(res2);
        var encryptedData = encodeURIComponent(res2.encryptedData);//一定要把加密串转成URI编码
          var iv = res2.iv;
          //请求自己的服务器
         Login(code,encryptedData,iv);
        }
      })

    } else {
      console.log(\'获取用户登录态失败！\' + res.errMsg)
    }
  }
});

function  Login(code,encryptedData,iv){     console.log(\'code=\'+code+\'&encryptedData=\'+encryptedData+\'&iv=\'+iv);
 //创建一个dialog
          wx.showToast({
            title: \'正在登录...\',
            icon: \'loading\',
            duration: 10000
          });
          //请求服务器
          wx.request({
            url: API_URL,
            data: {
              code:code,
              encryptedData:encryptedData,
              iv:iv
            },
            method: \'GET\', // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
            header: {
              \'content-type\': \'application/json\'
            }, // 设置请求的 header
            success: function (res) {
              // success
              wx.hideToast();
              console.log(\'服务器返回\'+res.data);

            },
            fail: function () {
              // fail
              // wx.hideToast();
            },
            complete: function () {
              // complete
            }
          })
  }