我需要将图像从SD卡上传到服务器，我在课堂上使用以下代码，我无法将图像从SD卡发送到服务器，也没有得到任何回复服务器是否成功上传。谁能帮我吗 ？我已经尝试了很多次，我不知道我在下面的代码中遇到问题。还请查看我给出的下面的PHP脚本，是对还是错。
public class UploadImage {
static int serverResponseCode = 0;
/********** File Path *************/
final static String uploadFilePath = Environment.getExternalStorageDirectory().getPath() + "/PMGRMS/";
static String upLoadServerUri = "api-filepath";
public static int uploadImage(String fName) {
String fileName = uploadFilePath + "service_lifecycle.png";
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "---------------------------147378098314876653456641449";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(fileName);
if (!sourceFile.isFile()) {
Log.e("UploadImage: ", "Image not found on SD");
return 0;
} else {
try {
// open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0,bufferSize);
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : " + serverResponseMessage + ": " + serverResponseCode);
if (serverResponseCode == 200) {
Log.i("UploadImage: ", "Image not found on SD");
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (Exception e) {
Log.e("Upload file to server Exception", "Exception : " + e.getMessage(), e);
}
return serverResponseCode;
} // End else block
}
}`
这是我正在使用的PHP脚本..
// PHP Script
if($id == "android")
{
// gallery path
$file_path = "../Gallery/Android/";
$file_path = $file_path . basename( $_FILES['PMGRMS']['name']);
if(move_uploaded_file($_FILES['PMGRMS']['tmp_name'], $file_path)) {
echo "Image is upload";
} else{enter code here
echo "Image is not Upload";
}
}
答案 0 :(得分：0)
在你的PHP代码中你正在检查id android但我找不到任何conn.setRequestProperty()设置值为“android”请尝试添加一些具有值“android”的属性
如果不成功，请尝试以下代码上传文件，我在我的应用程序中使用此代码将图像上传到我的服务器。
public String multipartRequest(String urlTo, String post, String filepath, String filefield) throws ParseException, IOException {
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
InputStream inputStream = null;
String twoHyphens = "--";
String boundary = "*****" + Long.toString(System.currentTimeMillis()) + "*****";
String lineEnd = "\r\n";
String result = "";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
String[] q = filepath.split("/");
int idx = q.length - 1;
try {
File file = new File(filepath);
FileInputStream fileInputStream = new FileInputStream(file);
URL url = new URL(urlTo);
connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("User-Agent", "Android Multipart HTTP Client 1.0");
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
outputStream = new DataOutputStream(connection.getOutputStream());
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-Disposition: form-data; name=\"" + filefield + "\"; filename=\"" + q[idx] + "\"" + lineEnd);
outputStream.writeBytes("Content-Type: application/octet-stream" + lineEnd);
outputStream.writeBytes("Content-Type: image/jpeg" + lineEnd);
outputStream.writeBytes("Content-Transfer-Encoding: binary" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
final double totalSize = bytesAvailable;
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
double uploaded = bytesRead;
while (bytesRead > 0) {
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
final int percent = (int) (uploaded / totalSize) * 100;
final double sizeUploaded = uploaded;
mContext.runOnUiThread(new Runnable() {
@Override
public void run() {
upload_progress.setProgress(percent);
title.setText(sizeUploaded + "(" + totalSize + ")");
}
});
System.out.println(uploaded / totalSize);
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
uploaded = uploaded + bytesRead;
HomeActivity.mNotifyBuilder.setProgress(100, percent, false);
// Displays the progress bar for the first time.
HomeActivity.mNotificationManager.notify(HomeActivity.NOTIFICATION_ID, HomeActivity.mNotifyBuilder.build());
}
outputStream.writeBytes(lineEnd);
// Upload POST Data
String[] posts = post.split("&");
int max = posts.length;
for (int i = 0; i < max; i++) {
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
String[] kv = posts[i].split("=");
outputStream.writeBytes("Content-Disposition: form-data; name=\"" + kv[0] + "\"" + lineEnd);
outputStream.writeBytes("Content-Type: text/plain" + lineEnd);
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(kv[1]);
outputStream.writeBytes(lineEnd);
}
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
inputStream = connection.getInputStream();
result = this.convertStreamToString(inputStream);
fileInputStream.close();
inputStream.close();
outputStream.flush();
outputStream.close();
return result;
} catch (Exception e) {
Log.e("MultipartRequest", "Multipart Form Upload Error");
e.printStackTrace();
return "error";
}
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
答案 1 :(得分：0)
试试这段代码
public String postData(String post_url,List<NameValuePair> post_parameters_list,String file) throws ClientProtocolException, IOException
{
int response_code = -1;
HttpPost httppost = new HttpPost(post_url);
httppost.setEntity(new UrlEncodedFormEntity(post_parameters_list));
FileEntity reqEntity = new FileEntity(new File(file),"binary/octet-stream");
reqEntity.setChunked(true);
httppost.setEntity(reqEntity);
HttpResponse response = httpclient.execute(httppost);
response_code = response.getStatusLine().getStatusCode();
if (response_code == HttpStatus.SC_UNAUTHORIZED)
{
Log.e("HttpResponse", "un authorized");
// insertActivityLog("Session timed out. The operation will be retried again");
}
else if(response_code == 999 || response_code == HttpStatus.SC_INTERNAL_SERVER_ERROR)
{
Log.e("HttpResponse", "Internal Server");
new Error("Time Out","Internal Server Error. Please contact support.");
}
else if(response_code == -1 )
{
Log.e("HttpResponse", "Socket connection timeout");
new Error("Time Out","Response returned from the server is empty. Please contact support.");
}
if (response_code == HttpStatus.SC_UNAUTHORIZED)
{
// credential check failed
Log.e("HTTP status", "unauthorised");
new Error("UNAUTHORIZED","unauthorised for the user " + post_parameters_list.get(0).getName());
}
else if (response_code == HttpStatus.SC_FORBIDDEN)
{
// forbidden
Log.e("HTTP status", "Forbidden");
new Error("Forbidden","User " + post_parameters_list.get(0).getName() + " does not have access to this project");
}
return response_code == HttpStatus.SC_OK ? EntityUtils.toString(response.getEntity()) : null;
}
答案 2 :(得分：0)
这段代码是工作用java
HttpClient client = new DefaultHttpClient();
HttpPost postMethod = new HttpPost("http://192.195.68.83/Upload/index.php");
File file = new File(fileUri.getPath());
MultipartEntity entity = new MultipartEntity();
FileBody contentFile = new FileBody(file);
entity.addPart("userfile",contentFile);
StringBody contentString = new StringBody("This is contentString");
entity.addPart("contentString",contentString);
postMethod.setEntity(entity);
HttpResponse response = client.execute(postMethod);
和php的代码
$uploads_dir = '/Library/WebServer/Documents/Upload/upload/'.$_FILES['userfile']['name'];
if(is_uploaded_file($_FILES['userfile']['tmp_name'])) {
echo $_POST["contentString"]."\n";
echo "File path = ".$uploads_dir;
move_uploaded_file ($_FILES['userfile'] ['tmp_name'], $uploads_dir);
} else {
echo "\n Upload Error";
echo "filename '". $_FILES['userfile']['tmp_name'] . "'.";
print_r($_FILES);
}