Swift - HTTP网络操作库Alamofire使用详解2（文件上传）

1，Alamofire支持如下上传类型：
2，使用文件流的形式上传文件

let fileURL = Bundle.main.url(forResource: "hangge", withExtension: "zip")

Alamofire.upload(fileURL!, to: "http://www.hangge.com/upload.php")
    .responseJSON { response in
        debugPrint(response)
    }

  附：服务端代码（upload.php）

<?php  
/** php 接收流文件 
* @param  String  $file 接收后保存的文件名 
* @return boolean 
*/  
function receiveStreamFile($receiveFile){    
    $streamData = isset($GLOBALS['HTTP_RAW_POST_DATA'])? $GLOBALS['HTTP_RAW_POST_DATA'] : '';  
  
    if(empty($streamData)){  
        $streamData = file_get_contents('php://input');  
    }  
  
    if($streamData!=''){  
        $ret = file_put_contents($receiveFile, $streamData, true);  
    }else{  
        $ret = false;  
    }  
 
    return $ret;    
}  

//定义服务器存储路径和文件名
$receiveFile =  $_SERVER["DOCUMENT_ROOT"]."/uploadFiles/hangge.zip";  
$ret = receiveStreamFile($receiveFile);  
echo json_encode(array('success'=>(bool)$ret));  
?>

3，上传时附带上传进度

let fileURL = Bundle.main.url(forResource: "hangge", withExtension: "zip")

Alamofire.upload(fileURL!, to: "http://www.hangge.com/upload.php")
    .uploadProgress { progress in // main queue by default
        print("当前进度: \(progress.fractionCompleted)")
    }
    .responseJSON { response in
        debugPrint(response)
    }

可以看到控制台不断输出已上传的进度（1则表示上传完毕）： 
（2）文本参数与文件一起提交（文件除了可以使用fileURL，还可以上传NSData类型的文件数据）

//字符串
let strData = "hangge.com".data(using: String.Encoding.utf8)
//数字
let intData = String(10).data(using: String.Encoding.utf8)
//文件1
let path = Bundle.main.url(forResource: "hangge", withExtension: "png")!
let file1Data = try! Data(contentsOf: path)
//文件2
let file2URL = Bundle.main.url(forResource: "hangge", withExtension: "zip")

Alamofire.upload(
    multipartFormData: { multipartFormData in
        multipartFormData.append(strData!, withName: "value1")
        multipartFormData.append(intData!, withName: "value2")
        multipartFormData.append(file1Data, withName: "file1",
                                 fileName: "h.png", mimeType: "image/png")
        multipartFormData.append(file2URL!, withName: "file2")
    },
    to: "http://www.hangge.com/upload2.php",
    encodingCompletion: { encodingResult in
        switch encodingResult {
        case .success(let upload, _, _):
            upload.responseJSON { response in
                debugPrint(response)
            }
        case .failure(let encodingError):
            print(encodingError)
        }
    }
)

  附：服务端代码（upload2.php）

<? 
$value1 = $_POST["value1"];
$value2 = $_POST["value2"];

move_uploaded_file($_FILES["file1"]["tmp_name"],
    $_SERVER["DOCUMENT_ROOT"]."/uploadFiles/" . $_FILES["file1"]["name"]);
 
move_uploaded_file($_FILES["file2"]["tmp_name"],
    $_SERVER["DOCUMENT_ROOT"]."/uploadFiles/" . $_FILES["file2"]["name"]);
?>