我使用以下代码将图像/视频发送到php服务器：
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
HttpURLConnection 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);
DataOutputStream 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
int bytesAvailable = fileInputStream.available();
int bufferSize = Math.min(bytesAvailable, maxBufferSize);
byte[] buffer = new byte[bufferSize];
// read file and write it into form...
int 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);
在PHP中接收：
<?php
$file_path = "uploads/";
$file_path = $file_path . basename( $_FILES['uploaded_file']['name']);
if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $file_path)) {
echo "success";
} else{
echo "fail";
}
?>
现在，我还想将一个字符串发送到服务器。
示例： - 名称：＆＃34;用户＆＃34;，值：＆＃34; abc＆＃34;
这样我就可以在PHP中获取它：
$value = $_POST["user"]
如何将这样的字符串添加到输出流中以便在php中接收？
答案 0 :(得分：1)
我是用它做的：
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
HttpURLConnection 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);
DataOutputStream 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
int bytesAvailable = fileInputStream.available();
int bufferSize = Math.min(bytesAvailable, maxBufferSize);
byte[] buffer = new byte[bufferSize];
// read file and write it into form...
int 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 + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"user\"" + lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(this_number);
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);
答案 1 :(得分：0)
其中一种方法是发送字符串以及由唯一分隔符分隔的内容处置（ $ ）
Content-Disposition: form-data; name="uploaded_file";filename=""+ fileName +"_$_stringdata"+ """ + lineEnd
在PHP中，http://php.net/manual/en/httpresponse.getcontentdisposition.php
使用getContentDisposition并解析它。
Description
static string HttpResponse::getContentDisposition ( void )
Get current Content-Disposition setting.
其他方式：使用httpmime
只需在您的MultipartEntity中添加一些FormBodyPart即可。
您可以使用StringBody对象来提供值。
以下是如何使用它的示例：
byte[] data = {10,10,10,10,10};
HttpClient httpClient = new DefaultHttpClient();
HttpPost postRequest = new HttpPost("server url");
ByteArrayBody bab = new ByteArrayBody(data, "image.jpg");
MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
reqEntity.addPart("image", bab);
FormBodyPart bodyPart=new FormBodyPart("formVariableName", new StringBody("formValiableValue"));
reqEntity.addPart(bodyPart);
bodyPart=new FormBodyPart("formVariableName2", new StringBody("formValiableValue2"));
reqEntity.addPart(bodyPart);
bodyPart=new FormBodyPart("formVariableName3", new StringBody("formValiableValue3"));
reqEntity.addPart(bodyPart);
postRequest.setEntity(reqEntity);
HttpResponse response = httpClient.execute(postRequest);
BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String line = null;
while((line = in.readLine()) != null) {
System.out.println(line);
}
在php中：
$_FILES
Array
(
[image] => Array
(
[name] => image.jpg
[type] => application/octet-stream
[tmp_name] => /tmp/php6UHywL
[error] => 0
[size] => 5
)
)
$_POST:
Array
(
[formVariableName] => formValiableValue
[formVariableName2] => formValiableValue2
[formVariableName3] => formValiableValue3
)
答案 2 :(得分：0)
在搜索了大量资源后，我什么都没有，但是当我尝试从$ _SERVER超级全局变量中获取文本数据时，我得到了所有文本数据和$ _FILE以获取图像。
package com.example.kingmash.Helper;
import android.content.Context;
import android.os.AsyncTask;
import android.os.StrictMode;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;
import com.example.kingmash.DAO.Profile_cover;
import com.example.kingmash.DAO.User_profile_cover;
import com.example.kingmash.MainActivity;
import com.example.kingmesh.R;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import static com.example.kingmash.Helper.AllRequest.responseMessage;
public class UploadFileOnlyAsync extends AsyncTask<String, Void, String> {
String sourceFileUri, serverResponseMessage;
int serverResponseCode;
ProgressBar progressBar;
User_profile_cover upc;
int isdatainserted;
Context context;
public UploadFileOnlyAsync(Context context, String sourceFileUri, boolean requireprgressbar, User_profile_cover upc) {
this.sourceFileUri = sourceFileUri;
this.context = context;
progressBar = null;
this.upc = upc;
if (requireprgressbar) {
// progressBar = ((AppCompatActivity) context).findViewById(R.id.progressbar);
}
}
@Override
protected void onPreExecute() {
Log.d("on pre----", "on pre-----------");
if (progressBar != null) {
progressBar.setVisibility(View.GONE);
progressBar.setVisibility(View.VISIBLE);
}
}
@Override
protected void onProgressUpdate(Void... values) {
Log.d("On update-------------", "" + values[0]);
if (progressBar != null) {
progressBar.setProgress(Integer.parseInt(values[0].toString()));
}
}
@Override
protected String doInBackground(String... params) {
responseMessage = new Profile_cover(context).insert(upc, Routes.insertStepsURL);
if (responseMessage.get(0).equals("Inserted")) {
Log.d("key------insert fata", "" + isdatainserted);
try {
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()) {
try {
String upLoadServerUri = Routes.update_prfile_covrer_URL;
// open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
// 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("user_id", "1");
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"profile\";filename=\""
+ sourceFileUri + "\"" + 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();
serverResponseMessage = conn
.getResponseMessage();
if (serverResponseCode == 200) {
// messageText.setText(msg);
//Toast.makeText(ctx, "File Upload Complete.",
// Toast.LENGTH_SHORT).show();
// recursiveDelete(mDirectory1);
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
String line;
ArrayList responseMessage = new ArrayList();
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
while ((line = br.readLine()) != null) {
Log.d("line---", line);
responseMessage.add(line);
}
} catch (Exception e) {
// dialog.dismiss();
e.printStackTrace();
}
// dialog.dismiss();
} // End else block
} catch (Exception ex) {
// dialog.dismiss();
ex.printStackTrace();
}
}
Log.d("do in back-------------", "" + "Executed " + serverResponseMessage + "" + serverResponseCode + responseMessage);
return "Executed " + serverResponseMessage + "" + serverResponseCode + " " + responseMessage;
}
@Override
protected void onPostExecute(String result) {
if (progressBar != null) {
progressBar.setVisibility(View.GONE);
}
}
}
这是从$ _SERVER或getAllHeaders（）函数读取标头的php代码
<?php
session_start();
include '../Config/ConnectionObjectOriented.php';
include '../Config/DB.php';
$db = new DB($conn);
$info=$db->fileUploadWithTable($_FILES,"user_profile_cover",$user_id,"../img/user", "5m", "jpg,png");
echo $info[0];
echo $info[1];
// you can check the detail of header by this code
foreach (getallheaders() as $name => $value) {
echo "$name: $value <br>";
}