上传文件到服务器与Android [英] Uploading file to server with android
本文介绍了上传文件到服务器与Android的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我一直在一个应用程序在Android上，应该抓住从SD卡的图像，然后将其上传到我的服务器。我能得到事先知情同意用这个作为URI的例子给了 HTTP上传到服务器： //www.androidexample.com/media/UploadToServer.php 。但是，图像将无法上传到我的本地服务器我使用URI 192.1xx.x.xxx/使用来自无线本地主机从Android设备uploadtoserver.php，我收到一个serverresponse 200和确定。
我用Google搜索的答案，并研究了3天，不能得到这个工作。
我的code：
Java的一部分：
公共类UploadToServer延伸活动{
TextView中的MessageText;
按钮uploadButton;
INT serverResponse code = 0;
ProgressDialog对话框= NULL;
字符串upLoadServerUri = NULL;
/********** 文件路径 *************/
字符串路径= Environment.getExternalStoragePublicDirectory（Environment.DIRECTORY_PICTURES）的ToString（）;
最后弦乐uploadFilePath =路径+/ MyApp的/温度/;
最后弦乐uploadFileName =temp.png;
@覆盖
公共无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_upload_to_server）;
uploadButton =（按钮）findViewById（R.id.uploadButton）;
=的MessageText（TextView中）findViewById（R.id.messageText）;
messageText.setText（上传文件路径： - 到/ mnt / SD卡/+ uploadFileName +'）;
/ ************* PHP脚本路径**************** /
upLoadServerUri =http://192.168.1.144/UploadToServer.php;
uploadButton.setOnClickListener（新OnClickListener（）{
@覆盖
公共无效的onClick（视图v）{
对话框= ProgressDialog.show（UploadToServer.this，，上传文件...，真正的）;
新主题（新的Runnable（）{
公共无效的run（）{
runOnUiThread（新的Runnable（）{
公共无效的run（）{
messageText.setText（上传开始......）;
}
}）;
uploadFile（uploadFilePath ++ uploadFileName）;
}
}）。开始（）;
}
}）;
}
公众诠释uploadFile（字符串sourceFileUri）{
字符串文件名= sourceFileUri;
HttpURLConnection的康恩= NULL;
DataOutputStream类DOS = NULL;
字符串lineEnd =\ r \ N的;
串twoHyphens = - ;
字符串边界=*****;
INT读取动作，方bytesAvailable，缓冲区大小;
byte []的缓冲区;
INT maxBufferSize = 1 * 1024 * 1024;
文件的SourceFile =新的文件（sourceFileUri）;
如果（！sourceFile.isFile（））{
dialog.dismiss（）;
Log.e（一个UploadFile，源文件不存在
+ uploadFilePath ++ uploadFileName）;
runOnUiThread（新的Runnable（）{
公共无效的run（）{
messageText.setText（源文件不存在
+ uploadFilePath ++ uploadFileName）;
}
}）;
返回0;
}
其他
{
尝试 {
//打开一个URL连接到这个Servlet
的FileInputStream的FileInputStream =新的FileInputStream（的资源文件）;
网址URL =新的URL（upLoadServerUri）;
//打开一个HTTP连接网址
康恩=（HttpURLConnection类）url.openConnection（）;
conn.setDoInput（真正的）; //允许输入
conn.setDoOutput（真正的）; //允许输出
conn.setUseCaches（假）; //不要使用缓存副本
conn.setRequestMethod（POST）;
conn.setRequestProperty（连接，保持活动）;
conn.setRequestProperty（ENCTYPE，多部分/表单数据）;
conn.setRequestProperty（内容类型，多部分/格式数据;边界=+界）;
conn.setRequestProperty（uploaded_file，文件名）;
DOS =新DataOutputStream类（conn.getOutputStream（））;
dos.writeBytes（twoHyphens +边界+ lineEnd）;
dos.writeBytes（内容处置：表格数据;名称= \uploaded_file \;文件名= \
+文件名+\+ lineEnd）;
dos.writeBytes（lineEnd）;
//创建最大大小的缓冲区
方bytesAvailable = fileInputStream.available（）;
BUFFERSIZE = Math.min（方bytesAvailable，maxBufferSize）;
缓冲区=新的字节[BUFFERSIZE]
//读取文件，并将其写入形式...
读取动作= fileInputStream.read（缓冲液，0，BUFFERSIZE）;
而（读取动作大于0）{
dos.write（缓冲液，0，BUFFERSIZE）;
方bytesAvailable = fileInputStream.available（）;
BUFFERSIZE = Math.min（方bytesAvailable，maxBufferSize）;
读取动作= fileInputStream.read（缓冲液，0，BUFFERSIZE）;
}
//发送多部分表格数据文件数据后necesssary ...
dos.writeBytes（lineEnd）;
dos.writeBytes（twoHyphens +边界+ twoHyphens + lineEnd）;
从服务器//回应（code和消息）
serverResponse code = conn.getResponse code（）;
串serverResponseMessage = conn.getResponseMessage（）;
Log.i（一个UploadFile，HTTP响应是：
+ serverResponseMessage +：+ serverResponse code）;
如果（serverResponse code == 200）{
runOnUiThread（新的Runnable（）{
公共无效的run（）{
弦乐味精=文件上传已完成\ñ\ñ看到这里上传的文件：\ñ\ N
+http://192.168.1.144/UploadToServer.php/
+ uploadFileName;
messageText.setText（MSG）;
Toast.makeText（UploadToServer.this，文件上传完成。，
Toast.LENGTH_SHORT）.show（）;
}
}）;
}
//关闭流//
fileInputStream.close（）;
dos.flush（）;
dos.close（）;
}赶上（MalformedURLException的前）{
dialog.dismiss（）;
ex.printStackTrace（）;
runOnUiThread（新的Runnable（）{
公共无效的run（）{
messageText.setText（MalformedURLException的例外情况：检查脚本的网址。）;
Toast.makeText（UploadToServer.this，MalformedURLException的，
Toast.LENGTH_SHORT）.show（）;
}
}）;
Log.e（上传文件到服务器，错误：+ ex.getMessage（），前）;
}赶上（例外五）{
dialog.dismiss（）;
e.printStackTrace（）;
runOnUiThread（新的Runnable（）{
公共无效的run（）{
messageText.setText（GOT例外：看logcat的）;
Toast.makeText（UploadToServer.this，得到了异常：看logcat的，
Toast.LENGTH_SHORT）.show（）;
}
}）;
Log.e（上传文件到服务器异常，异常
+ e.getMessage（），E）;
}
dialog.dismiss（）;
返回serverResponse code;
} //结束else块
}
}
由于它工作在一台服务器上，我相信这是一个服务器端的问题
PHP部分
＆LT; PHP
$ target_path1 =无功/网络/图片/
$ target_path1 = $ target_path1。基本名（$ _ FILES ['uploaded_file'] ['名称']）;
如果（move_uploaded_file（$ _ FILES ['uploaded_file'] ['tmp_name的值']，$ target_path1））{
回声成功;
} 其他{
回声失败;}
？＆GT;
解决方案
＆LT; PHP
$ target_path1 =/无功/网络/图片/
$ target_path1 = $ target_path1。基本名（$ _ FILES ['uploaded_file'] ['名称']）;
如果（move_uploaded_file（$ _ FILES ['uploaded_file'] ['tmp_name的值']，$ target_path1））{
回声成功;
} 其他 {
回声不及格;
}
？＆GT;
它看起来就像你引用一个相对目录：无功/网络/图片/ ，如果你的PHP文件是 /无功/网络/ 来开始将指向 /无功/网络/无功/网络/图片/ 我怀疑是你打算。
只要修改 $ target_path1 使它成为绝对路径 /无功/网络/图片/
I have been working on an app on android that should grab an image from the sd card and then upload it to my server. I was able to get the pic to upload to a server using this as the uri the example gave "http://www.androidexample.com/media/UploadToServer.php. However the image will not upload to my localhost server i am using the local host from a wifi from an android device using URI 192.1xx.x.xxx/uploadtoserver.php. I recieve a serverresponse 200 and OK.
I have googled for answers and researched for 3 days and cannot get this to work.
My Code:
Java part:
public class UploadToServer extends Activity {
TextView messageText;
Button uploadButton;
int serverResponseCode = 0;
ProgressDialog dialog = null;
String upLoadServerUri = null;
/********** File Path *************/
String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString();
final String uploadFilePath = path + "/MyApp/Temp/";
final String uploadFileName = "temp.png";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload_to_server);
uploadButton = (Button)findViewById(R.id.uploadButton);
messageText = (TextView)findViewById(R.id.messageText);
messageText.setText("Uploading file path :- '/mnt/sdcard/"+uploadFileName+"'");
/************* Php script path ****************/
upLoadServerUri = "http://192.168.1.144/UploadToServer.php";
uploadButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
dialog = ProgressDialog.show(UploadToServer.this, "", "Uploading file...", true);
new Thread(new Runnable() {
public void run() {
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("uploading started.....");
}
});
uploadFile(uploadFilePath + "" + uploadFileName);
}
}).start();
}
});
}
public int uploadFile(String sourceFileUri) {
String fileName = sourceFileUri;
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
dialog.dismiss();
Log.e("uploadFile", "Source File not exist :"
+uploadFilePath + "" + uploadFileName);
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Source File not exist :"
+uploadFilePath + "" + uploadFileName);
}
});
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");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
// 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){
runOnUiThread(new Runnable() {
public void run() {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+" http://192.168.1.144/UploadToServer.php/"
+uploadFileName;
messageText.setText(msg);
Toast.makeText(UploadToServer.this, "File Upload Complete.",
Toast.LENGTH_SHORT).show();
}
});
}
//close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("MalformedURLException Exception : check script url.");
Toast.makeText(UploadToServer.this, "MalformedURLException",
Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (Exception e) {
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Got Exception : see logcat ");
Toast.makeText(UploadToServer.this, "Got Exception : see logcat ",
Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server Exception", "Exception : "
+ e.getMessage(), e);
}
dialog.dismiss();
return serverResponseCode;
} // End else block
}
}
Since it works on one server i believe this is a server-side issue
PHP part
<?php
$target_path1 = "var/www/images/"
$target_path1 = $target_path1 . basename( $_FILES['uploaded_file']['name']);
if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $target_path1)) {
echo "Success";
} else{
echo "fail";}
?>
解决方案
<?php
$target_path1 = "/var/www/images/"
$target_path1 = $target_path1 . basename( $_FILES['uploaded_file']['name']);
if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $target_path1)) {
echo "Success";
} else {
echo "fail";
}
?>
It looks like you were referencing a relative directory: var/www/images/ which, if your php file was in /var/www/ to begin with would be pointing to /var/www/var/www/images/ which I doubt is what you were intending.
Just change $target_path1 to make it an absolute path /var/www/images/
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