分享一个react 图片上传组件 支持OSS 七牛云

摘要：是一个基于组件的图片上传组件支持等服务端自定义获取签名批量上传预览删除排序等功能需要版本大于支持地址安装引入调用图片上传服务地址图片查看地址前缀配置项类型默认值描述类型目前

react-uplod-img 是一个基于 React antd组件的图片上传组件 支持oss qiniu等服务端自定义获取签名,批量上传, 预览, 删除, 排序等功能

需要 react 版本大于 v16.1.0 支持async await

git地址

demo

安装

npm i react-uplod-img --save

引入

import UpImage from "react-uplod-img"

调用

const getOSSSign = (suffix,width,height, extraParam) => {
    const apiServerUrl = "https://hp.bncry.cn/util/getAliyunSignature";
    const url = `${apiServerUrl}?${[
        `bizName=${extraParam.bizName}`,
        `suffix=${suffix}`,
        `width=${width}`,
        `height=${height}`,
    ].join("&")}`;

    return new Promise((resolve,reject)=>{
        fetch(url).then(async (response)=>{
            const res = await response.json();
            const formData = res.data;
            resolve({
                key: formData.dirPath,
                policy: formData.policy,
                OSSAccessKeyId: formData.OSSAccessKeyId,
                success_action_status: "200",
                callback: formData.callback,
                signature: formData.signature,
            });
        })
    })
};

const ossUploadConfig = {
            type:"oss",
            imageUploadServerHost: "https://hp-file-lf.oss-cn-hangzhou.aliyuncs.com", //图片上传服务地址
            imageShowServiceHost: "https://hp-file-lf.oss-cn-hangzhou.aliyuncs.com", // 图片查看地址前缀
            totalNum: 5,
            supportSort: true,
            value:"avatar/2018-10-10/f2b3ace0-cc33-11e8-8ad4-3550e70cc242_220_138.jpg;avatar/2018-10-10/f2b42210-cc33-11e8-8ad4-3550e70cc242_1080_1920.jpg;avatar/2018-10-10/f2b44920-cc33-11e8-8ad4-3550e70cc242_1280_719.jpg"
        };

suffix 图片后缀  width 图片宽度 height 图片高度  extraParam 自定义的参数

width 和 height 参数是组件通过渲染获取的图片真实宽高,
推荐传递到服务器端参与签名 生成的URL key中能携带宽高信息 如
/avatar/2018-10-10/f2b3ace0-cc33-11e8-8ad4-3550e70cc242_800_600.jpg 图片路径中携带了宽高信息 后期前端页面图片懒加载时 可以通过链接中的宽高信息做优化

    // oss
    const getSign = (suffix,width,height, extraParam) => {
        const apiServerUrl = "https://hp.bncry.cn/util/getAliyunSignature";
        const url = `${apiServerUrl}?${[
            `bizName=${extraParam.bizName}`,
            `suffix=${suffix}`,
            `width=${width}`,
            `height=${height}`,
        ].join("&")}`;

        return new Promise((resolve,reject)=>{
            fetch(url).then(async (response)=>{
                const res = await response.json();
                const formData = res.data;
                resolve({
                    key: formData.dirPath,
                    policy: formData.policy,
                    OSSAccessKeyId: formData.OSSAccessKeyId,
                    success_action_status: "200",
                    callback: formData.callback,
                    signature: formData.signature,
                });
            })
        })
    };

    // qiniu

    const getSign = (suffix,width,height, extraParam) => {
        const qiniuApiServerUrl = "https://hp.bncry.cn/util/getQiniuSignature";
        const url = `${qiniuApiServerUrl}?${[
            `suffix=${suffix}`,
            `width=${width}`,
            `height=${height}`,
        ].join("&")}`;

        return new Promise((resolve,reject)=>{
            fetch(url).then(async (response)=>{
                const formData = await response.json();
                resolve({
                    token: formData.uptoken,
                });
            })
        })
    };

注意事项

获取签名采用的是async await的异步处理方式 需要你的项目支持async await 如果不支持 会报 ReferenceError: regeneratorRuntime is not defined

解决方案

npm i --save-dev babel-plugin-transform-runtime
在 .babelrc 文件中添加：
"plugins": [[
    "transform-runtime",
    {
      "helpers": false,
      "polyfill": false,
      "regenerator": true,
      "moduleName": "babel-runtime"
    }
  ]]