Question

[警告]
正如我所看到的那样，这个问题越来越受到关注，我想告诉你不要使用以下任何代码。
当我问到这个问题时，Swift还有不到一年的时间，速度很快，大部分图书馆都不是Swift友好且不稳定的。我强烈建议您尝试使用Alamofire或其他库来完成此类任务。但不要自己动手 [/警告]

我想将图像上传到Drupal端点。

我遇到的问题是我收到带有text / html内容类型的HTTP 200 OK响应。在HTML响应中，有一条明确的信息表明节点已正确创建。但在服务器端，图像与节点无关。

我也不期待text / html，但是我在Accept标题中指定了application / json。

它已经可以在使用Android Rest Template的Android应用中运行。以下是供参考的代码：

String url = getUrl("node/{info_id}/attach_file");

HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);

if (user.isLoggedIn()) {
    headers.add(user.getSessionName(), user.getSessionId());
    headers.add("X-CSRF-Token", user.getToken());
    headers.add("Cookie", user.getSessionName() + "=" + user.getSessionId());
}

MultiValueMap<String, Object> parts = new LinkedMultiValueMap<>();

parts.add("files[field_mobileinfo_image]",
        new FileSystemResource(info.getImageUri()));
parts.add("field_name", "field_mobileinfo_image");

HttpEntity<MultiValueMap<String, Object>> request = new HttpEntity<>(parts, headers);
return getRestTemplate().exchange(url, HttpMethod.POST, request, Void.class, info.getId()).getBody();

我知道我没有检查Android中的响应（Void.class），但一切正常，图像附加到服务器端的节点上。

现在在Swift的iOS上我尝试了很多东西。

使用AFNetworking：

func upload(mobileInfo: MobileInfo) {
    let user = userService.load()
    let url = Config.buildUrl("")

    let manager = AFHTTPRequestOperationManager(baseURL: NSURL(string:url)!)
    let serializer = AFHTTPRequestSerializer()
    serializer.setValue(user.sessionId, forHTTPHeaderField: user.sessionName)
    serializer.setValue(user.token, forHTTPHeaderField: "X-CSRF-Token")
    serializer.setValue("\(user.sessionName)=\(user.sessionId)", forHTTPHeaderField: "Cookie")
    manager.requestSerializer = serializer

    manager.responseSerializer.acceptableContentTypes.removeAll(keepCapacity: false)
    manager.responseSerializer.acceptableContentTypes.insert("application/json")

    let imageData = UIImageJPEGRepresentation(mobileInfo.image, 0.3)    
    manager.POST("/node/\(mobileInfo.id)/attach_file", parameters: nil, constructingBodyWithBlock: { (formData) -> Void in
        formData.appendPartWithFileData(
            imageData,
            name: "files[field_mobileinfo_image]",
            fileName: "field_mobileinfo_image",
            mimeType: "image/jpeg")
        formData.appendPartWithFormData("field_mobileinfo_image".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true), name: "field_name")
    },
    success: { (operation, data) -> Void in
        println(data)
    }) { (operation, error) -> Void in
        println(error)
    }
}

手动从其他stackoverflow问题抓取信息：

func upload2(mobileInfo: MobileInfo) {
    let user = userService.load()
    let imageData = UIImageJPEGRepresentation(mobileInfo.image, 0.3)
    let url = NSURL(string:Config.buildUrl("/node/\(mobileInfo.id)/attach_file"))!
    println(url)
    var request = NSMutableURLRequest(URL: url)
    var session = NSURLSession.sharedSession()
    request.HTTPMethod = "POST"
    var boundary = "---------------------------14737809831466499882746641449"
    var contentType = "multipart/form-data; boundary=\(boundary)"
    println(contentType)
    request.addValue(contentType, forHTTPHeaderField: "Content-Type")
    request.addValue("application/json", forHTTPHeaderField: "Accept")
    request.addValue("\(user.sessionName)=\(user.sessionId)", forHTTPHeaderField: "Cookie")
    request.addValue(user.sessionId, forHTTPHeaderField: user.sessionName)
    request.addValue(user.token, forHTTPHeaderField: "X-CSRF-Token")

    println(request.allHTTPHeaderFields)

    var body = NSMutableData()

    body.appendData("\r\n--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("Content-Disposition: form-data; name=\"field_name\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("field_mobileinfo_image".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)!)

    body.appendData("\r\n--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("Content-Disposition: form-data; name=\"files[field_mobileinfo_image]\"; filename=\"img.jpg\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("Content-Type: application/octet-stream\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData(imageData)
    body.appendData("\r\n--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)


    var returnData = NSURLConnection.sendSynchronousRequest(request, returningResponse: nil, error: nil)

    var returnString = NSString(data: returnData!, encoding: NSUTF8StringEncoding)

    println("returnString \(returnString)")
}

使用SRWebClient：

func upload3(mobileInfo: MobileInfo) {
    let user = userService.load()
    let imageData:NSData = NSData(data: UIImageJPEGRepresentation(mobileInfo.image, 0.3))
    SRWebClient.POST("http://master.test.lesfrontaliers.lu/node/\(mobileInfo.id)/attach_file")
        .headers(["Accept": "application/json",
            user.sessionName: user.sessionId,
            "X-CSRF-Token": user.token,
            "Cookie": "\(user.sessionName)=\(user.sessionId)"])
        .data(imageData, fieldName:"files[field_mobileinfo_image]", data:["field_name":"field_mobileinfo_image"])
        .send({ (response: AnyObject!, status: Int) -> Void in
            println(status)
            println(response)
        },failure:{(error:NSError!) -> Void in
            println(error)
        })
}

请救救我！ ;-) 我尝试了很多东西让它发挥作用，如果我做错了什么我就再也看不到了。对我来说似乎没问题。我能看到的唯一区别是我没有将图像存储在文件系统上，而是直接发送最终相同的二进制数据。

这是在Postman（工作和接收json）中创建的请求的图像

Postman

[编辑]如果它可以帮助此人是上述手动请求的错误部分的正确代码：

var body = NSMutableData()

body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"field_name\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("field_mobileinfo_image\r\n".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)!)

body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"files[field_mobileinfo_image]\"; filename=\"img.jpg\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Type: image/jpeg\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData(imageData)
body.appendData("\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

body.appendData("--\(boundary)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

request.HTTPBody = body

Answer 1

对于任何swift 2.0 JSON请求和PHP代码： - （手动）

    let imageData = UIImageJPEGRepresentation(userImage, 0.3)
    let url:NSURL = NSURL(string: serverURL!)! // Give ur request URL
    let request = NSMutableURLRequest(URL: url)
    request.HTTPMethod = "POST"
    let boundary = "---------------------------14737809831466499882746641449"
    let contentType = "multipart/form-data; boundary=\(boundary)"
    request.addValue(contentType, forHTTPHeaderField: "Content-Type")
    let body = NSMutableData()
    body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("Content-Disposition: form-data; name=\"userfile\"; filename=\"img.jpg\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("Content-Type: image/jpeg\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("Content-Transfer-Encoding: binary\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData(imageData!)
    body.appendData("\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    body.appendData("--\(boundary)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
    request.HTTPBody = body

PHP代码： -

<?php

//http://192.168.1.154/Contact/uploadImgwebservice.php

//print the username  and password using php

echo $_POST[‘username’];

echo $_POST[‘password’];

//upload your file

$uploaddir = ‘./uploads/’;

$file = basename($_FILES[‘userfile’][‘name’]);

$uploadfile = $uploaddir . $file;

if (move_uploaded_file($_FILES[‘userfile’][‘tmp_name’], $uploadfile)) {

    echo “http://192.168.1.154/Contact/uploads/{$file}”;

}

?>

使用Swift

1 个答案: