uni-app接口请求报错 {"statusCode":0,"errMsg":"request:fail abort"}

uni-app接口请求报错 {“statusCode”:0,“errMsg”:“request:fail abort”}

请问我用本地服务器请求接口web端请求没报错，iPhone真机联调却报错{"statusCode":0,"errMsg":"request:fail abort"}， 请问是什么问题导致真机调试的时候跑到fail失败的方法里面，是https还是？

testRequest(){
    var _this = this;
    console.log("测试数据请求  --- ");  

    uni.request({  
        url:'http://127.0.0.1:8080/testCall',  
        success: (data) => {   
            console.log('测试 --- ' + JSON.stringify(data));    
        },  
        fail: (data, code) => {  
            console.log('fail --- ' + JSON.stringify(data));  
            this.msg = JSON.stringify(data);  
        }  
    })  
},