我正在关注这些人马丁·拉塞克教程,现在我处于“图像上传”。
似乎没有人能回答“Vapor 3 如何上传图片”这个问题
数据库连接正常,所有其他值均已保存。
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以及原始图像字节,
但我怎样才能到达那里呢?
这使用多部分形式的自动解码:
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)
}
The upload.leaf
文件是:
<form method="POST" enctype="multipart/form-data">
<input type="file" name="document" />
<input type="submit" value="Send" />
</form>
使用类型File
允许访问上传文件的本地文件名以及文件数据。如果将问题字段的其余部分添加到ExampleUpload 结构中,则可以使用该路由来捕获整个表单的字段。
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