Question

我目前正在Swift中创建一个应用程序，并且在PHP方面经验很少。我使用在线教程创建了一个辅助服务器，以下是代码：

的index.php：

<html>
<head>
<title>PHP Upload Test</title>
</head>
<body>
    <form action="upload.php" method="post" enctype="multipart/form-data">
        <input type="file" name="fileToUpload" />
        <input type ="hidden" name="partyGroupId" id="partyGroupId" value="10050"/>
        <input type="submit" name="submit" value="Click to Upload"/>
    </form>
</body>
</html>

upload.php的：

<?php //ignore this comment >
$uploadFolder = "./upload";
if (!file_exists($uploadFolder)) {
    mkdir($uploadFolder);
}

 $uploadFile = $uploadFolder . "/" . basename($_FILES["fileToUpload"]
 ["name"]);

if(!(getimagesize($_FILES["fileToUpload"]["tmp_name"]) !== false)) {
    echo "Sorry, your image is invalid";
    exit;
}

$imageFileType = strtolower(pathinfo($uploadFile, PATHINFO_EXTENSION));
if($imageFileType != "jpg"
        && $imageFileType != "png"
        && $imageFileType != "jpeg"
        && $imageFileType != "gif" ) {
    echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
    exit;
}

if ($_FILES["fileToUpload"]["size"] > 2000000) {
    echo "Sorry, your file is too large.";
    exit;
}

if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], 
$uploadFile)) {
    echo "Successfully";
} else {
    echo "Sorry, there was an error uploading your file.";
}
?>

Swift 3.0代码：

func UploadRequest()
    {
    let url = URL(string: "http://localhost:8080")

let request = NSMutableURLRequest(url: url!)
request.httpMethod = "POST"

let boundary = generateBoundaryString()


request.setValue("multipart/form-data; boundary=\(boundary)", 
forHTTPHeaderField: "Content-Type")

if (notesImage.image == nil)
{
    return
}

let image_data = UIImagePNGRepresentation(notesImage.image!)


if(image_data == nil)
{
    return
}


let body = NSMutableData()

let fname = "test.png"
let mimetype = "image/png"


body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Disposition:form-data; name=\"test\"\r\n\r\n".data(using: String.Encoding.utf8)!)
body.append("hi\r\n".data(using: String.Encoding.utf8)!)



body.append("--\(boundary)\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Disposition:form-data; name=\"file\"; filename=\"\(fname)\"\r\n".data(using: String.Encoding.utf8)!)
body.append("Content-Type: \(mimetype)\r\n\r\n".data(using: String.Encoding.utf8)!)
body.append(image_data!)
body.append("\r\n".data(using: String.Encoding.utf8)!)


body.append("--\(boundary)--\r\n".data(using: String.Encoding.utf8)!)


request.httpBody = body as Data



let session = URLSession.shared


let task = session.dataTask(with: request as URLRequest, completionHandler: {
    (
    data, response, error) in

    guard ((data) != nil), let _:URLResponse = response, error == nil else {
        print("error")
        return
    }

    if let dataString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
    {
        print(dataString)
    }

})

task.resume()


}


func generateBoundaryString() -> String
{
    return "Boundary-\(UUID().uuidString)"
}

}

当我运行iOS应用时，它始终会显示消息：抱歉您的图片无效。我尝试了不同的图像，但它无法正常工作。我该怎么办？

Answer 1

你的php期望图像为＆＃34; fileToUpload＆＃34;，但是在Swift中你使用名称＆＃34; file＆＃34;，所以php代码将无法获得预期的图像。

将图像从Swift应用程序上传到PHP Side服务器

1 个答案: