post 地址reponse里面返回图片下载方式
一:axiso等在请求request里面添加responseType:'blob'
const service = axios.create({
baseURL: 'https://www.haorooms.com', // url = base url + request url
withCredentials: true // send cookies when cross-domain requests
})
service.interceptors.request.use(
config => {
if(config.url.indexOf('haorooms/imagedownload')!=-1){
config.responseType ='blob'
}
return config
},
error => {
console.log(error) // for debug
return Promise.reject(error)
}
)
二、转换为blob
let blob = new Blob([res])
三、创建地址,下载图片
let url = window.URL.createObjectURL(blob)
let downloadElement = document.createElement("a")
downloadElement.style.display = "none";
downloadElement.href = url
downloadElement.download = `${haorooms.imageName}${imageType == 'JPG' ? '.jpg' : '.png'}`
document.body.appendChild(downloadElement)
downloadElement.click()
document.body.removeChild(downloadElement)
window.URL.revokeObjectURL(url)
此方法对各种后端二进制数据均有效。
get请求下载excel
window.location.href = `${origin}/downloadExcel?haoroomsquery=${encodeURIComponent(JSON.stringify(queryData))}`