首先是現在main.js裡面進行配置

Vue.prototype.$onError = function (error) {
var error_msg = '網路錯誤';
var toastFlag = true;
switch (error.errorCode) {
case 401:
error_msg = '請先登入';
break;
case 500:
error_msg = '伺服器錯誤';
break;
case 504:
error_msg = '網路超時'
break;
case 20000:
toastFlag = false;
this.$router.push({path: 'invalidIdentity'
 
});
break;
    }
if(toastFlag){
this.$Toast({
message: error_msg,
position: 'bottom',
duration: 2000,
callback: () => {
this.$router.push({path: 'error'});
            }
        })
    }
}

下面舉例一個藉口

siteService.sales(this.time).then(res => {
vm.salesInfo = res.data;
vm.details 
 
= vm.salesInfo.details;
vm.saleSum = vm.salesInfo.saleSum;
vm.time = vm.salesInfo.time;
}, err => {
this.$onError(err);
});