上传playframework中的表单错误413请求实体到大型

Question

def upload = Action(parse.multipartFormData) { request => 
    request.body.file("picture").map { picture =>
        import java.io.File
        val filename = picture.filename 
        val contentType = picture.contentType
        picture.ref.moveTo(new File("/tmp/picture"))
        Ok("File uploaded")
      }.getOrElse {
        Redirect(routes.Application.index).flashing(
          "error" -> "Missing file"
        )
      }
  }

GET     /admin/carro/upload         controllers.AdminCarro.upload

@import helper._


@main(new Main("Car Dealers", "Compra e venda de carros", "logo.png", "carro, compra, venda")) {
    <div class="container">
    @form(routes.AdminCarro.upload, 'enctype -> "multipart/form-data") {

        <input type="file" name="picture">

        <p>
            <input type="submit">
        </p>

    }
    </div>
}

Answer 1

我不确定你这样做是想达到什么目的。为什么不使用get来显示视图，而使用post来显示上传：

def uploadView = Action.async { request => 
   Future.successful(Ok(views.html.uploadForm))
}

def upload = Action(parse.multipartFormData).async { request => 
    request.body.file("picture").map { picture =>
        import java.io.File
        val filename = picture.filename 
        val contentType = picture.contentType
        picture.ref.moveTo(new File("/tmp/picture"))
        Future.successful(Ok("File uploaded"))
      }.getOrElse {
        Future.successful(Redirect(routes.Application.index).flashing(
          "error" -> "Missing file"
        ))
      }
  }

和路由文件：

  GET     /admin/carro/upload         controllers.AdminCarro.uploadView
  POST    /admin/carro/upload         controllers.AdminCarro.upload

另外，如果上传的是大文件，则可以为所有解析器指定最大值：

parsers.text.maxLength=5242880

Action(parse.text(maxLength = 1024 * 10))