我正在关注这些家伙
Martin Lasek教程,现在我正在“图片上传”.
似乎没有人能回答“如何上传i Vapor 3图像”的问题
似乎没有人能回答“如何上传i Vapor 3图像”的问题
Db连接正常,所有其他值都保存.
这是我的创建方法：
func create(_ req: Request) throws -> Future<Response> {
return try req.content.decode(Question.self).flatMap { question in
return question.save(on: req).map { _ in
return req.redirect(to: "/form")
}
}
}
和型号：
final class Question: PostgresqlModel {
var id: Int?
var questionText: String
var answers: [String]
var theme: String?
var imageName: String?
var imageData: File?
init(id: Int? = nil,questionText: String,answers: [String],theme: String,imageName: String?,imageData: File?) {
self.id = id
self.questionText = questionText
self.answers = answers
self.theme = theme
self.imageName = imageName
self.imageData = imageData
}
}
和叶子模板：
<form action="/save" method="POST" enctype="multipart/form-data" id="upload-form"> <input type="file" accept="image/png,image/jpg" name="image"> <input class="btn btn-success btn-block" type="submit" value="Legg til"> </form>
我知道需要一种管理文件的方法和原始图像字节,
但我怎么去那里？
这使用多部分表单的自动解码：
router.get("upload") {
request -> Future<View> in
return try request.view().render("upload")
}
struct ExampleUpload: Content {
let document: File
}
// this saves the file into a Question
router.post(ExampleUpload.self,at:"upload") {
request,upload -> Future<HTTPResponseStatus> in
let question = try Question()
question.imageData = upload.document.data
question.imageName = upload.document.filename
return question.save(on:request).transform(to: HTTPResponseStatus.ok)
}
upload.leaf文件是：
<form method="POST" enctype="multipart/form-data"> <input type="file" name="document" /> <input type="submit" value="Send" /> </form>
使用File类型可以访问上载文件的本地文件名以及文件数据.如果将其余的Question字段添加到ExampleUpload结构中,则可以使用该路径捕获整个表单的字段.