一、uniapp配置
1、新建utils目录,在utils文件里新建request.js 输入代码如下
request.js
import util from './util.js';
//import authLogin from './autuLogin.js';
import { HTTP_REQUEST_URL,HEADER , TOKENNAME} from './../config.js';
/**
* 发送请求
*/
export default function request(api, method, data, {noAuth = false, noVerify = false})
{
let Url = HTTP_REQUEST_URL, header = HEADER;
if (!noAuth) {
//登录过期自动登录
//if (!util.checkLogin()) return authLogin().then(res => { return request(api, method, data, { noAuth, noVerify}); });
}
//if (getApp().globalData.token) header[TOKENNAME] = 'Bearer ' + getApp().globalData.token;
if(uni.getStorageSync('token')){
header[TOKENNAME] = uni.getStorageSync('token');
}
return new Promise((reslove, reject) => {
wx.request({
url: Url + '/appApi/' + api,
method: method || 'GET',
header: header,
data: data || {},
success: (res) => {
if (noVerify)
reslove(res.data, res);
else if (res.data.code == 0)
reslove(res.data, res);
else if (res.data.status == 402)
reslove(res.data, res);
else if ([410000, 410001, 410002].indexOf(res.data.status) !== -1) {
//util.logout()
//return authLogin().then(res => { return request(api, method, data, { noAuth, noVerify }); });
} else
reject(res.data.msg || '系统错误');
},
fail: (msg) => {
reject('请求失败');
}
})
});
}
['options', 'get', 'post', 'put', 'head', 'delete', 'trace', 'connect'].forEach((method) => {
request[method] = (api, data, opt) => request(api, method, data, opt || {})
});
2、再次在utils项目里新建util.js文件,输入代码如下
util.js
import { TOKENNAME } from './../config.js';
const formatTime = date => {
const year = date.getFullYear()
const month = date.getMonth() + 1
const day = date.getDate()
const hour = date.getHours()
const minute = date.getMinutes()
const second = date.getSeconds()
return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}
const $h={
//除法函数,用来得到精确的除法结果
//说明:javascript的除法结果会有误差,在两个浮点数相除的时候会比较明显。这个函数返回较为精确的除法结果。
//调用:$h.Div(arg1,arg2)
//返回值:arg1除以arg2的精确结果
Div:function (arg1, arg2) {
arg1 = parseFloat(arg1);
arg2 = parseFloat(arg2);
var t1 = 0, t2 = 0, r1, r2;
try { t1 = arg1.toString().split(".")[1].length; } catch (e) { }
try { t2 = arg2.toString().split(".")[1].length; } catch (e) { }
r1 = Number(arg1.toString().replace(".", ""));
r2 = Number(arg2.toString().replace(".", ""));
return this.Mul(r1 / r2 , Math.pow(10, t2 - t1));
},
//加法函数,用来得到精确的加法结果
//说明:javascript的加法结果会有误差,在两个浮点数相加的时候会比较明显。这个函数返回较为精确的加法结果。
//调用:$h.Add(arg1,arg2)
//返回值:arg1加上arg2的精确结果
Add: function (arg1, arg2) {
arg2 = parseFloat(arg2);
var r1, r2, m;
try { r1 = arg1.toString().split(".")[1].length } catch (e) { r1 = 0 }
try { r2 = arg2.toString().split(".")[1].length } catch (e) { r2 = 0 }
m = Math.pow(100, Math.max(r1, r2));
return (this.Mul(arg1, m) + this.Mul(arg2, m)) / m;
},
//减法函数,用来得到精确的减法结果
//说明:javascript的加法结果会有误差,在两个浮点数相加的时候会比较明显。这个函数返回较为精确的减法结果。
//调用:$h.Sub(arg1,arg2)
//返回值:arg1减去arg2的精确结果
Sub: function (arg1, arg2) {
arg1 = parseFloat(arg1);
arg2 = parseFloat(arg2);
var r1, r2, m, n;
try { r1 = arg1.toString().split(".")[1].length } catch (e) { r1 = 0 }
try { r2 = arg2.toString().split(".")[1].length } catch (e) { r2 = 0 }
m = Math.pow(10, Math.max(r1, r2));
//动态控制精度长度
n = (r1 >= r2) ? r1 : r2;
return ((this.Mul(arg1, m) - this.Mul(arg2, m)) / m).toFixed(n);
},
//乘法函数,用来得到精确的乘法结果
//说明:javascript的乘法结果会有误差,在两个浮点数相乘的时候会比较明显。这个函数返回较为精确的乘法结果。
//调用:$h.Mul(arg1,arg2)
//返回值:arg1乘以arg2的精确结果
Mul: function (arg1, arg2) {
arg1 = parseFloat(arg1);
arg2 = parseFloat(arg2);
var m = 0, s1 = arg1.toString(), s2 = arg2.toString();
try { m += s1.split(".")[1].length } catch (e) { }
try { m += s2.split(".")[1].length } catch (e) { }
return Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m);
},
}
const formatNumber = n => {
n = n.toString()
return n[1] ? n : '0' + n
}
/**
* 处理服务器扫码带进来的参数
* @param string param 扫码携带参数
* @param string k 整体分割符 默认为:&
* @param string p 单个分隔符 默认为:=
* @return object
*
*/
const getUrlParams = (param,k,p) => {
if (typeof param!='string') return {};
k = k ? k : '&';//整体参数分隔符
p = p ? p : '=';//单个参数分隔符
var value = {};
if (param.indexOf(k) !== -1) {
param = param.split(k);
for (var val in param) {
if (param[val].indexOf(p) !== -1) {
var item = param[val].split(p);
value[item[0]] = item[1];
}
}
} else if (param.indexOf(p) !== -1){
var item = param.split(p);
value[item[0]] = item[1];
}else{
return param;
}
return value;
}
const wxgetUserInfo = function()
{
return new Promise((resolve, reject) =>{
wx.getUserInfo({
lang: 'zh_CN',
success(res) {
resolve(res);
},
fail(res){
reject(res);
}
})
});
}
const checkLogin = function (token, expiresTime, isLog)
{
if (getApp()){
token = getApp().globalData.token;
expiresTime = getApp().globalData.expiresTime;
isLog = getApp().globalData.isLog;
}
let res = token ? true : false;
let res1 = isLog;
let res2 = res && res1;
if (res2){
let newTime=Math.round(new Date() / 1000);
if (expiresTime < newTime) return false;
}
return res2;
}
const logout = function()
{
getApp().globalData.token = '';
getApp().globalData.isLog = false;
}
const chekWxLogin = function()
{
return new Promise((resolve, reject)=>{
if (checkLogin())
return resolve({ userinfo: getApp().globalData.userInfo, isLogin: true });
wx.getSetting({
success(res) {
if (!res.authSetting['scope.userInfo']) {
return reject({authSetting:false});
} else {
wx.getStorage({
key: 'cache_key',
success(res){
wxgetUserInfo().then(userInfo => {
userInfo.cache_key = res.data;
return resolve({ userInfo: userInfo, isLogin: false });
}).catch(res => {
return reject(res);
});
},
fail(){
getCodeLogin((code) => {
wxgetUserInfo().then(userInfo => {
userInfo.code = code;
return resolve({ userInfo: userInfo, isLogin: false });
}).catch(res => {
return reject(res);
})
});
}
})
}
},
fail(res) {
return reject(res);
}
})
})
}
/**
*
* 授权过后自动登录
*/
const autoLogin = function()
{
return new Promise((resolve, reject) => {
wx.getStorage({
key: 'cache_key',
success(res) {
wxgetUserInfo().then(userInfo => {
userInfo.cache_key = res.data;
return resolve(userInfo);
}).catch(res => {
return reject(res);
})
},
fail(){
getCodeLogin((code) => {
wxgetUserInfo().then(userInfo => {
userInfo.code = code;
return resolve(userInfo);
}).catch(res => {
return reject(res);
})
});
}
});
})
}
const getCodeLogin = function(successFn)
{
wx.login({
success(res){
successFn(res);
}
})
}
/*
* 合并数组
*/
const SplitArray= function (list, sp) {
if (typeof list != 'object') return [];
if (sp === undefined) sp = [];
for (var i = 0; i < list.length; i++) {
sp.push(list[i]);
}
return sp;
}
/**
* opt object | string
* to_url object | string
* 例:
* this.Tips('/pages/test/test'); 跳转不提示
* this.Tips({title:'提示'},'/pages/test/test'); 提示并跳转
* this.Tips({title:'提示'},{tab:1,url:'/pages/index/index'}); 提示并跳转值table上
* tab=1 一定时间后跳转至 table上
* tab=2 一定时间后跳转至非 table上
* tab=3 一定时间后返回上页面
* tab=4 关闭所有页面跳转至非table上
* tab=5 关闭当前页面跳转至table上
*/
const Tips= function (opt, to_url) {
if (typeof opt == 'string') {
to_url = opt;
opt = {};
}
var title = opt.title || '', icon = opt.icon || 'none', endtime = opt.endtime || 2000;
if (title) wx.showToast({ title: title, icon: icon, duration: endtime })
if (to_url != undefined) {
if (typeof to_url == 'object') {
var tab = to_url.tab || 1, url = to_url.url || '';
switch (tab) {
case 1:
//一定时间后跳转至 table
setTimeout(function () {
wx.switchTab({
url: url
})
}, endtime);
break;
case 2:
//跳转至非table页面
setTimeout(function () {
wx.navigateTo({
url: url,
})
}, endtime);
break;
case 3:
//返回上页面
setTimeout(function () {
wx.navigateBack({
delta: parseInt(url),
})
}, endtime);
break;
case 4:
//关闭当前所有页面跳转至非table页面
setTimeout(function () {
wx.reLaunch({
url: url,
})
}, endtime);
break;
case 5:
//关闭当前页面跳转至非table页面
setTimeout(function () {
wx.redirectTo({
url: url,
})
}, endtime);
break;
}
}else if(typeof to_url == 'function'){
setTimeout(function () {
to_url && to_url();
}, endtime);
}else{
//没有提示时跳转不延迟
setTimeout(function () {
wx.navigateTo({
url: to_url,
})
}, title ? endtime : 0);
}
}
}
/*
* 单图上传
* @param object opt
* @param callable successCallback 成功执行方法 data
* @param callable errorCallback 失败执行方法
*/
const uploadImageOne=function (opt, successCallback, errorCallback) {
if (typeof opt === 'string') {
var url = opt;
opt = {};
opt.url = url;
}
var count = opt.count || 1, sizeType = opt.sizeType || ['compressed'], sourceType = opt.sourceType || ['album', 'camera'],
is_load = opt.is_load || true, uploadUrl = opt.url || '', inputName = opt.name || 'pics';
wx.chooseImage({
count: count, //最多可以选择的图片总数
sizeType: sizeType, // 可以指定是原图还是压缩图,默认二者都有
sourceType: sourceType, // 可以指定来源是相册还是相机,默认二者都有
success: function (res) {
//启动上传等待中...
wx.showLoading({
title: '图片上传中',
});
wx.uploadFile({
url: getApp().globalData.url+'/api/'+uploadUrl,
filePath: res.tempFilePaths[0],
name: inputName,
formData: {
'filename': inputName
},
header: {
"Content-Type": "multipart/form-data",
[TOKENNAME]: 'Bearer '+getApp().globalData.token
},
success: function (res) {
wx.hideLoading();
if (res.statusCode == 403) {
Tips({ title: res.data });
} else {
var data = res.data ? JSON.parse(res.data) : {};
if (data.status == 200) {
successCallback && successCallback(data)
} else {
errorCallback && errorCallback(data);
Tips({ title: data.msg });
}
}
}, fail: function (res) {
wx.hideLoading();
Tips({ title: '上传图片失败' });
}
})
}
})
}
/**
* 移除数组中的某个数组并组成新的数组返回
* @param array array 需要移除的数组
* @param int index 需要移除的数组的键值
* @param string | int 值
* @return array
*
*/
const ArrayRemove= (array,index,value) =>{
const valueArray=[];
if (array instanceof Array){
for (let i = 0; i < array.length;i++){
if (typeof index == 'number' && array[index] != i){
valueArray.push(array[i]);
} else if (typeof index == 'string' && array[i][index] != value){
valueArray.push(array[i]);
}
}
}
return valueArray;
}
/**
* 生成海报获取文字
* @param string text 为传入的文本
* @param int num 为单行显示的字节长度
* @return array
*/
const textByteLength = (text, num) =>{
let strLength = 0;
let rows = 1;
let str = 0;
let arr = [];
for (let j = 0; j < text.length; j++) {
if (text.charCodeAt(j) > 255) {
strLength += 2;
if (strLength > rows * num) {
strLength++;
arr.push(text.slice(str, j));
str = j;
rows++;
}
} else {
strLength++;
if (strLength > rows * num) {
arr.push(text.slice(str, j));
str = j;
rows++;
}
}
}
arr.push(text.slice(str, text.length));
return [strLength, arr, rows] // [处理文字的总字节长度,每行显示内容的数组,行数]
}
/**
* 获取分享海报
* @param array arr2 海报素材
* @param string store_name 素材文字
* @param string price 价格
* @param function successFn 回调函数
*
*
*/
const PosterCanvas = (arr2, store_name, price,successFn) =>{
wx.showLoading({ title: '海报生成中', mask: true });
const ctx = wx.createCanvasContext('myCanvas');
ctx.clearRect(0, 0, 0, 0);
/**
* 只能获取合法域名下的图片信息,本地调试无法获取
*
*/
wx.getImageInfo({
src: arr2[0],
success: function (res) {
const WIDTH = res.width;
const HEIGHT = res.height;
ctx.drawImage(arr2[0], 0, 0, WIDTH, HEIGHT);
ctx.drawImage(arr2[1], 0, 0, WIDTH, WIDTH);
ctx.save();
let r = 90;
let d = r * 2;
let cx = 40;
let cy = 990;
ctx.arc(cx + r, cy + r, r, 0, 2 * Math.PI);
ctx.clip();
ctx.drawImage(arr2[2], cx, cy, d, d);
ctx.restore();
const CONTENT_ROW_LENGTH = 40;
let [contentLeng, contentArray, contentRows] = textByteLength(store_name, CONTENT_ROW_LENGTH);
if (contentRows > 2) {
contentRows =2;
let textArray=contentArray.slice(0,2);
textArray[textArray.length-1]+='……';
contentArray = textArray;
}
ctx.setTextAlign('center');
ctx.setFontSize(32);
let contentHh = 32 * 1.3;
for (let m = 0; m < contentArray.length; m++) {
ctx.fillText(contentArray[m], WIDTH / 2, 820 + contentHh * m);
}
ctx.setTextAlign('center')
ctx.setFontSize(48);
ctx.setFillStyle('red');
ctx.fillText('¥' + price, WIDTH / 2, 860 + contentHh);
ctx.draw(true, function () {
wx.canvasToTempFilePath({
canvasId: 'myCanvas',
fileType: 'png',
destWidth: WIDTH,
destHeight: HEIGHT,
success: function (res) {
wx.hideLoading();
successFn && successFn(res.tempFilePath);
}
})
});
},
fail:function(){
wx.hideLoading();
Tips({title:'无法获取图片信息'});
}
})
}
/**
* 数字变动动画效果
* @param float BaseNumber 原数字
* @param float ChangeNumber 变动后的数字
* @param object that 当前this
* @param string name 变动字段名称
* */
const AnimationNumber = (BaseNumber,ChangeNumber,that,name) => {
var difference = $h.Sub(ChangeNumber,BaseNumber) //与原数字的差
var absDifferent = Math.abs(difference) //差取绝对值
var changeTimes = absDifferent < 6 ? absDifferent : 6 //最多变化6次
var changeUnit = absDifferent < 6 ? 1 : Math.floor(difference/6);
// 依次变化
for (var i = 0; i < changeTimes; i += 1) {
// 使用闭包传入i值,用来判断是不是最后一次变化
(function (i) {
setTimeout(() => {
that.setData({
[name]: $h.Add(BaseNumber,changeUnit)
})
// 差值除以变化次数时,并不都是整除的,所以最后一步要精确设置新数字
if (i == changeTimes - 1) {
that.setData({
[name]: $h.Add(BaseNumber, difference)
})
}
}, 100 * (i + 1))
})(i)
}
}
module.exports = {
formatTime: formatTime,
$h:$h,
Tips: Tips,
uploadImageOne: uploadImageOne,
SplitArray: SplitArray,
ArrayRemove: ArrayRemove,
PosterCanvas: PosterCanvas,
AnimationNumber: AnimationNumber,
getUrlParams: getUrlParams,
chekWxLogin: chekWxLogin,
getCodeLogin: getCodeLogin,
checkLogin: checkLogin,
wxgetUserInfo: wxgetUserInfo,
autoLogin: autoLogin,
logout: logout
}
3、在utils文件夹同级目录下新建config.js文件输入代码如下erer
module.exports = {
// 请求域名 格式: https://您的域名
HTTP_REQUEST_URL:'http://localhost:8081',
// Socket链接 暂不做配置
WSS_SERVER_URL:'',
// 以下配置非开发者,无需修改
// 请求头
HEADER:{
'content-type': 'application/json'
},
// Socket调试模式
SERVER_DEBUG:true,
// 心跳间隔
PINGINTERVAL:3000,
// 回话密钥名称
TOKENNAME: 'x-token',
//用户信息缓存名称
CACHE_USERINFO:'USERINFO',
//token缓存名称
CACHE_TOKEN:'TOKEN',
//token过期事件
CACHE_EXPIRES_TIME:'EXPIRES_TIME',
//模板缓存
CACHE_SUBSCRIBE_MESSAGE:'SUBSCRIBE_MESSAGE',
//用户信息缓存名称
CACHE_USERINFO: 'USERINFO',
//缓存经度
CACHE_LONGITUDE: 'LONGITUDE',
//缓存纬度
CACHE_LATITUDE: 'LATITUDE',
}
二、springboot 配置
1、在controller包的同级新建config包,之后在config包里新建CorsConfig.java文件录入代码如下
CorsConfig.java
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
@EnableWebMvc
public class CorsConfig implements WebMvcConfigurer {
@Override
public void addCorsMappings(CorsRegistry registry){
//设置允许跨域的路径
registry.addMapping("/**")
//设置允许跨域请求的域名
.allowedOriginPatterns("*")
//这里:是否允许证书 不再默认开启
.allowCredentials(true)
//设置允许的方法
.allowedMethods("*")
//跨域允许时间
.maxAge(3600);
System.out.println("跨域配置已执行 ");
}
}
2、找到springboot项目的启动类,让启动类实现WebMvcConfigurer配置类如下,重启项目
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@SpringBootApplication
public class FinanceApplication implements WebMvcConfigurer {
public static void main(String[] args) {
SpringApplication.run(FinanceApplication.class, args);
}
}
三,uniapp配置
1、打开uniapp项目在pages同级创建api文件,在文件里新建api.js文件,输入一下代码
import request from "./../utils/request.js";
export function login(data){
return request.post('user/login',data)
}
2、在pages里引用 import{login} from '@/api/api.js'后在methods中直接使用即可