mall-applet1/jsFile/requst.js

// 清理所有缓存并前往登录授权页
const goLogin = () => {
    uni.clearStorageSync();
    uni.navigateTo({
        url: '/pages/login/login'
    })
}
let flag = true;
// 刷新token并跳转到当前页面
const refreshTokenPage = () => {
	uni.login({
		provider: 'weixin',
		success: (result)=> {
			uni.request({
				url: `${getApp().globalData.hostapi}user/login`,
				method: 'post',
				data: {code:result.code},
				success: res => {
					if(res.data.data.token!=''){
						flag = true;
						uni.setStorageSync('token',res.data.data.token); // 缓存token
						uni.setStorageSync('openid',res.data.data.openid)//缓存openid
						uni.setStorageSync('expire',res.data.data.expire); // 缓存失效时间（时间戳格式）
						uni.reLaunch({ // 重新进入当前页面
							url:uni.getStorageSync('page-path-options')
						})
					}
				}
			})
		},
	});
}
// 请求错误处理
const checkError = (e) => {
    // console.error("----接口错误----", e)
    if (e.data) {
        if (e.data.code) {
            switch (Number(e.data.code)) {
				case 500:
				// 接口错误
				console.log('500接口错误');
                case 4003:
				// 参数错误
				console.log('4003参数错误');
                    break;
				case 4004:
				// 记录不存在
				console.log('4004记录不存在');
				    break;
				case 5001:
				// xxx错误
				console.log('5001xxx错误');
				    break;
				case 5050:
				// 服务器错误，请稍后重试
				console.log('5050服务器错误，请稍后重试');
				// 调用到登录页
				goLogin();
				    break;
				case 5051:
				// 未知错误
				console.log('5051未知错误');
				    break;
				case 6001:
				// token验证失败或已失效
				console.log('6001token验证失败或已失效');
				if(flag) {
					flag = false;
					// 调用刷新token事件并跳转到当前页面
					refreshTokenPage();
				}
				    break;
            }
        }
    }
}

// 封装request的(GET、POST)请求
const request = (method, url, options) => {
    let methods = '';
    let headers = {};
    switch (method) {
        case 'get':
            methods = 'GET'
            headers = {
                'Content-Type': 'application/json; charset=UTF-8',
				'Authorization': 'Bearer '+uni.getStorageSync('token') || ''
            }
            break;
        case 'post':
            methods = 'POST'
            headers = {
                'Content-Type': 'application/json; charset=UTF-8',
				'Authorization': 'Bearer '+uni.getStorageSync('token') || ''
            }
            break;
        case 'postForm':
            methods = 'POST'
            headers = {
                'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
				'Authorization': 'Bearer '+uni.getStorageSync('token') || ''
            }
            break;
    }
	return new Promise((resolve, reject) => {
		uni.request({
			url: `${getApp().globalData.hostapi}${url}`,
			method: methods,
			data: options,
			header: headers,
			success: res => {
				console.log(`${url}返的结果===>`,res);
				if (res.statusCode == 200) {
					resolve(res.data);
				} else {
					// 接口返回错误信息
					checkError(res);
				}
			},
			fail: e => {
				// 接口请求错误
				checkError(e, reject);
			},
			complete: rest => {
				// 是否成功，都会执行
				console.log(rest,100);
			}
		})
	})
}
// 上传文件 封装请求
const uploadFile = (url, options) => {
    let tempData = options || {}
    return new Promise((resolve, reject) => {
        uni.uploadFile({
            url: `${getApp().globalData.hostapi}${url}`,
            filePath: tempData.path,
            name: 'image',
			fileType:'image',
            formData: tempData,
			header: {
				'Content-Type': 'multipart/form-data;charset=UTF-8',
				'Authorization': 'Bearer '+uni.getStorageSync('token') || ''
			},
            success: res => {
                if (res.statusCode == 200) {
                    let temp = JSON.parse(res.data)
                    if (temp.code == 0) {
                        resolve(temp)
                    }
                }
            }
        });
    })
}


export default {
    get: (url, options) => {
        return request('get', url, options)
    },
    // JOSN格式
    post: (url, options) => {
        return request('post', url, options)
    },
    // form-data格式
    postForm: (url, options) => {
        return request('postForm', url, options)
    },
    // 上传
    upload: (url, options) => {
        return uploadFile(url, options)
    }
}