作者： admin

遇到这种问题看看前端json对象传给后台时，后台对接收的对象是不是处理有问题，例如

前端传给后台的就是Object对象，后台偏偏就把Object又处理成 JSON.parse(ctx.request.body)导致报这种错误

uniapp vue-cli vuecli uni-ui

推荐使用官方组价，其他第三方组件引入出现各种问题

https://uniapp.dcloud.net.cn/component/uniui/uni-calendar.html

vueCli项目默认是不编译node_modules下的组件的，导致条件编译等功能失效，导致组件异常。

需要我们在vue.config.js文件中，添加@dcloudio/uni-ui包的编译”transpileDependencies:[‘@dcloudio/uni-ui’]“即可正常。

// vue.config.js
module.exports = {
  transpileDependencies:['@dcloudio/uni-ui'],
  configureWebpack: {
    ...
  },
  chainWebpack: (config) => {
    ...
  },
  devServer: {
    ...
  }
}

 

 

安装sass、sass-loader

uniUi的使用必须要先安装sass以及sass-loader，两者的版本不推荐安装较高版本，有害无利。

npm install sass@1.22.10 -D
npm install sass-loader@7.2.0 -D

 

 

npm安装组件库

npm install @dcloudio/uni-ui@1.4.24 -S

 

在pages.json中添加easycom节点

{
    "easycom": {
        "autoscan": true,
        "custom": {
            "^uni-(.*)": "@dcloudio/uni-ui/lib/uni-$1/uni-$1.vue"
        }
    },
    "pages": [
        ...
    ],
    "globalStyle": {
        ...
    }
}

 

uniUi不支持全局Vue.use()，需要按需引入。

<uni-calendar 
    ref="calendar"
    :insert="false"
    @confirm="confirm"
/>
<button @click="open">打开日历</button>


import { uniCalendar } from '@dcloudio/uni-ui';

methods: {
  open(){
      this.$refs.calendar.open();
  },
  confirm(e) {
       console.log(e);
  }
},

https://blog.csdn.net/weixin_42216094/article/details/122171394

 

环境：

node 12.20.2
vue-cli 3.0.5
使用vue2
Hbuilder X 3.6.18.20230117

 

引入vant-weapp

地址：https://github.com/youzan/vant-weapp

https://gitee.com/vant-contrib/vant-weapp?_from=gitee_search

1）在pages同级目录下新建 wxcomponents 目录。
2）直接通过 git 下载 vant-weapp 最新源代码，并将dist目录命名为vant，并复制到wxcomponents目录中

 

 

 

pages.json新增代码

"easycom": {
     "autoscan": true,
     "custom": {
        "^van-(.*)": "@/wxcomponents/vant/$1/index.vue"
     }
},

"globalStyle": {
        
        "usingComponents": { 
                    "van-action-sheet": "/wxcomponents/vant/action-sheet/index",
                    "van-area": "/wxcomponents/vant/area/index",
                    // "van-badge": "/wxcomponents/vant/badge/index",
                    // "van-badge-group": "/wxcomponents/vant/badge-group/index",
                    "van-button": "/wxcomponents/vant/button/index",
                    "van-card": "/wxcomponents/vant/card/index",
                    "van-cell": "/wxcomponents/vant/cell/index",
                    "van-cell-group": "/wxcomponents/vant/cell-group/index",
                    "van-checkbox": "/wxcomponents/vant/checkbox/index",
                    "van-checkbox-group": "/wxcomponents/vant/checkbox-group/index",
                    "van-col": "/wxcomponents/vant/col/index",
                    "van-dialog": "/wxcomponents/vant/dialog/index",
                    "van-field": "/wxcomponents/vant/field/index",
                    "van-goods-action": "/wxcomponents/vant/goods-action/index",
                    "van-goods-action-icon": "/wxcomponents/vant/goods-action-icon/index",
                    "van-goods-action-button": "/wxcomponents/vant/goods-action-button/index",
                    "van-icon": "/wxcomponents/vant/icon/index",
                    "van-loading": "/wxcomponents/vant/loading/index",
                    "van-nav-bar": "/wxcomponents/vant/nav-bar/index",
                    "van-notice-bar": "/wxcomponents/vant/notice-bar/index",
                    "van-notify": "/wxcomponents/vant/notify/index",
                    "van-panel": "/wxcomponents/vant/panel/index",
                    "van-popup": "/wxcomponents/vant/popup/index",
                    "van-progress": "/wxcomponents/vant/progress/index",
                    "van-radio": "/wxcomponents/vant/radio/index",
                    "van-radio-group": "/wxcomponents/vant/radio-group/index",
                    "van-row": "/wxcomponents/vant/row/index",
                    "van-search": "/wxcomponents/vant/search/index",
                    "van-slider": "/wxcomponents/vant/slider/index",
                    "van-stepper": "/wxcomponents/vant/stepper/index",
                    "van-steps": "/wxcomponents/vant/steps/index",
                    "van-submit-bar": "/wxcomponents/vant/submit-bar/index",
                    "van-swipe-cell": "/wxcomponents/vant/swipe-cell/index",
                    "van-switch": "/wxcomponents/vant/switch/index",
                    // "van-switch-cell": "/wxcomponents/vant/switch-cell/index",
                    "van-tab": "/wxcomponents/vant/tab/index",
                    "van-tabs": "/wxcomponents/vant/tabs/index",
                    "van-tabbar": "/wxcomponents/vant/tabbar/index",
                    "van-tabbar-item": "/wxcomponents/vant/tabbar-item/index",
                    "van-tag": "/wxcomponents/vant/tag/index",
                    "van-toast": "/wxcomponents/vant/toast/index",
                    "van-transition": "/wxcomponents/vant/transition/index",
                    "van-tree-select": "/wxcomponents/vant/tree-select/index",
                    "van-datetime-picker": "/wxcomponents/vant/datetime-picker/index",
                    "van-rate": "/wxcomponents/vant/rate/index",
                    "van-collapse": "/wxcomponents/vant/collapse/index",
                    "van-collapse-item": "/wxcomponents/vant/collapse-item/index",
                    "van-picker": "/wxcomponents/vant/picker/index"
            }
}

 

 

 

app.vue新增代码

<style lang="scss">
  @import "@/wxcomponents/vant/common/index.wxss";
</style>

 

可能会报样式错误

修改\wxcomponents\vant\icon\index.wxss，在前面加空格

 

 

可能出现的报错：《Cannot find module ‘./index.vue?vue&type=style&index=0&lang=scss&’”》

dev:h5 模式可能需要安装 npm install sass-loader@7.3.1

 

解决方法：

安装npm install node-sass@4.14.1 -D //node v10.15.2
npm i node-sass@4.14.1 --sass_binary_site=https://npm.taobao.org/mirrors/node-sass

 

将Vue Cli版本降为了3.x版本之后，再次创建新的Vue项目，报以下错误：

意思：需要将~/.vuerc文件删除
文件路径：

C:\Users\Administrator