一. 创建request文件夹–>创建index.js文件
第一种:
const config = require('./api.js'); // 请求的base URL
const getTokenHandle = () => {
return uni.getStorageSync('token') // 获取登录用户token
}
// 请求白名单页面(不需要token请求的页面)
const pageWhiteList = ['pages/login/login', 'pages/login/phoneLogin'];
// 请求响应拦截处理
const resInterceptHandle = () => {
const routes = getCurrentPages(); // 获取当前打开过的页面路由数组
const curRoute = routes[routes.length - 1].route // 获取当前页面路由
const flag = pageWhiteList.includes(curRoute)
if (!flag) {
console.log(`---[ ${curRoute} ]页面获取数据需要登录---`)
uni.navigateTo({
url: '/pages/login/login'
})
}
return flag
}
// 请求参数处理
const requestParam = (data, method) => {
let str = '';
if (method == 'post') {
str = JSON.stringify(data);
return str;
} else if (method == 'get') {
for (let i in data) {
str += i + '=' + data[i] + '&';
}
str = str.length > 0 ? str.substring(0, str.length - 1) : '';
return encodeURI(str);
}
};
// 请求封装
const sendRequest = (method = 'GET', url = '', params = {}, ) => {
let promise = new Promise(async (resolve, reject) => {
let token = await getTokenHandle()
const URL = config.baseUcodeURL + url + (method === 'GET' ? params : '')
//网络请求
wx.request({
header: {
Authorization: token
},
url: URL,
method,
data: method === 'GET' ? {} : params,
success: function(res) {
// 响应403拦截跳转登录
if (res.statusCode == 200 && res.data.status === 403) {
resInterceptHandle()
return
}
// 服务器返回数据
if (res.statusCode == 200) {
resolve(res.data);
} else {
console.log(`============${method} 请求失败:============`);
console.error(
'接口地址: ',
'【 ' + URL + ' 】'
);
console.error('请求参数: ', params);
console.error('返回结果: ', res);
wx.showToast({
title: res.data.emsg,
icon: 'none',
duration: 3000,
mask: true
});
reject(res);
}
},
fail: function(res) {
console.log(`============${method} 请求失败:============`);
console.error(
'接口地址: ',
'【 ' + URL + ' 】'
);
console.error('请求参数: ', params);
console.error('返回结果: ', res);
reject(res);
}
});
});
return promise;
}
// 封装post请求(url:请求接口; data:请求参数;)
const httpPost = async (url, data) => {
const params = requestParam(data, 'post');
const res = await sendRequest('POST', url, params)
console.log('post请求成功响应:', res)
return res
};
// 封装get请求(url:请求接口; data:请求参数;)
const httpGet = async (url, data) => {
let params = data && JSON.stringify(data) != '{}' ?
'?' + requestParam(data, 'get') :
'';
const res = await sendRequest('GET', url, params)
console.log('get请求成功响应', res)
return res
};
// 自定义请求类型
const http = async (params = {
method: 'GET',
url: '',
data: {}
}) => {
const res = await sendRequest(params.method, params.url, params.data)
console.log(`自定义${params.method}请求成功响应`, res)
return res
};
module.exports = {
Post: httpPost,
Get: httpGet,
http: http
};
第二种:
const config = require('./api.js'); // 请求的base URL
// 判断是否有token,没有跳转到登录页
const token = uni.getStorageSync("token");
if (!token) {
uni.navigateTo({
url: "/pages/login/login",
});
resolve(false);
} else {
resolve(true);
}
// 请求参数处理
const requestParam = (data, method) => {
let str = '';
if (method == 'post') {
str = JSON.stringify(data);
return str;
} else if (method == 'get') {
for (let i in data) {
str += i + '=' + data[i] + '&';
}
str = str.length > 0 ? str.substring(0, str.length - 1) : '';
return encodeURI(str);
}
};
// 请求封装
const sendRequest = (method = 'GET', url = '', params = {}, ) => {
let promise = new Promise(async (resolve, reject) => {
let token = await getTokenHandle()
const URL = config.baseUcodeURL + url + (method === 'GET' ? params : '')
//网络请求
wx.request({
header: {
Authorization: token
},
url: URL,
method,
data: method === 'GET' ? {} : params,
success: function(res) {
// 响应403拦截跳转登录
if (res.statusCode == 200 && res.data.status === 403) {
resInterceptHandle()
return
}
// 服务器返回数据
if (res.statusCode == 200) {
resolve(res.data);
} else {
console.log(`============${method} 请求失败:============`);
console.error(
'接口地址: ',
'【 ' + URL + ' 】'
);
console.error('请求参数: ', params);
console.error('返回结果: ', res);
wx.showToast({
title: res.data.emsg,
icon: 'none',
duration: 3000,
mask: true
});
reject(res);
}
},
fail: function(res) {
console.log(`============${method} 请求失败:============`);
console.error(
'接口地址: ',
'【 ' + URL + ' 】'
);
console.error('请求参数: ', params);
console.error('返回结果: ', res);
reject(res);
}
});
});
return promise;
}
// 封装post请求(url:请求接口; data:请求参数;)
const httpPost = async (url, data) => {
const params = requestParam(data, 'post');
const res = await sendRequest('POST', url, params)
console.log('post请求成功响应:', res)
return res
};
// 封装get请求(url:请求接口; data:请求参数;)
const httpGet = async (url, data) => {
let params = data && JSON.stringify(data) != '{}' ?
'?' + requestParam(data, 'get') :
'';
const res = await sendRequest('GET', url, params)
console.log('get请求成功响应', res)
return res
};
// 自定义请求类型
const http = async (params = {
method: 'GET',
url: '',
data: {}
}) => {
const res = await sendRequest(params.method, params.url, params.data)
console.log(`自定义${params.method}请求成功响应`, res)
return res
};
module.exports = {
Post: httpPost,
Get: httpGet,
http: http
};
二. 在main.js中把封装的方法挂载到全局对象上
const {Get,http,Post} = require("./request/index");
Vue.prototype.$http = http
Vue.prototype.$get = Get
Vue.prototype.$post = Post
三. 使用
this.$post('/login/login', data).then(res => {}).catch(err=>{})
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