Android 如何将图像添加到web服务器
在这里我想上传图片到网站上 我列出了代码,但它不起作用 请帮我纠正一下 MyImageUploader.javaAndroid 如何将图像添加到web服务器,android,file-upload,Android,File Upload,在这里我想上传图片到网站上 我列出了代码,但它不起作用 请帮我纠正一下 MyImageUploader.java import java.io.BufferedReader; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.i
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Bitmap.CompressFormat;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
import android.provider.SyncStateContract.Constants;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MyImageUploader extends Activity{
private static final int PICK_IMAGE = 1;
private ImageView imageview;
private TextView textview;
private Button button;
private EditText edittext;
private Bitmap bitmap;
private ProgressDialog dialog;
String albumId = ConstantData.album_id;
Integer userId = ConstantData.userId;
Bitmap photoId;
ArrayList<Object> result;
XmlParser parser;
HttpResponse response;
InputStream in;
String strResponse;
HttpPost post;
int width_tmp,height_tmp;
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.myimageuploader);
imageview = (ImageView)findViewById(R.id.upldimgvw);
button = (Button)findViewById(R.id.btn_imgupld);
edittext = (EditText)findViewById(R.id.edt_cptn);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(bitmap == null){
Toast.makeText(getApplicationContext(), "Please select image..", Toast.LENGTH_SHORT).show();
}
else{
dialog = ProgressDialog.show(MyImageUploader.this, "Uploading", "Please wait...",true);
new ImageUploadTask().execute();
}
}
});
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.imageupload_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.ic_menu_gallery:
try{
Intent intent = new Intent();
intent.setType("Image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"),PICK_IMAGE);
}catch (Exception e) {
// TODO: handle exception
Toast.makeText(getApplicationContext(), "Get Picture" ,Toast.LENGTH_SHORT).show();
Log.e(e.getClass().getName(),e.getMessage(),e);
break;
}
return true;
case R.id.ic_menu_Images:
Toast.makeText(this, "You pressed the Image!", Toast.LENGTH_LONG).show();
break;
}
return super.onOptionsItemSelected(item);
}
protected void onActivityResult(int requestcode,int resultcode, Intent data){
Log.i("Request Code",""+requestcode);
Log.i("Result Code", ""+resultcode);
Log.i("Intent Data",""+data);
switch(requestcode){
case PICK_IMAGE:
if(resultcode == Activity.RESULT_OK);
Uri selectedImageUri = data.getData();
String filePath = null;
try{
String filemanagerstring = selectedImageUri.getPath();
String selectedImagePath = getPath(selectedImageUri);
if(selectedImagePath != null)
{
filePath = selectedImagePath;
}else if(filemanagerstring != null)
{
filePath = filemanagerstring;
}else{
Toast.makeText(getApplicationContext(), "Unknown Path",Toast.LENGTH_SHORT).show();
Log.e("Bitmap","Unknown Path");
}
if(filePath != null){
decodeFile(filePath);
}
else{
bitmap = null;
}
}catch (Exception e) {
// TODO: handle exception
Toast.makeText(getApplicationContext(), "Internal Error", Toast.LENGTH_SHORT);
Log.e(e.getClass().getName(), e.getMessage(), e);
}
}
}
class ImageUploadTask extends AsyncTask<Void, Void, String>{
@Override
protected String doInBackground(Void... params) {
// TODO Auto-generated method stub
try{
DefaultHttpClient client = new DefaultHttpClient();
post = new HttpPost("http://192.168.5.10/ijoomer_development/index.php?option=com_ijoomer&plg_name=jomsocial&pview=album&ptask=album_list&upload_photo&userid=80&sessionid=3011e063260d55b8a7095bc3a581130c&tmpl=component 14:34");
StringBuffer strBuffer = new StringBuffer("<data><userid>" + userId + "</userid><albumid>" + albumId + "</albumid><photo>"+photoId+"</photo></data>");
StringEntity strEntity = new StringEntity(strBuffer.toString());
post.setEntity(strEntity);
MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.JPEG, 100, bos);
byte[] data = bos.toByteArray();
entity.addpart("userId");
entity.addPart("albumId");
entity.addPart("photoId", new FileBody(new File(filepath)));
post.setEntity(entity);
response = client.execute(post);
in = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(in, "UTF-8"));
strResponse = convertStreamToString(in);
parser = new XmlParser(in, new AddAlbumDetailBean());
result = parser.parse("data", "photo");
}catch (Exception e){
if (dialog.isShowing())
dialog.dismiss();
Toast.makeText(getApplicationContext(),"image",Toast.LENGTH_LONG).show();
Log.e(e.getClass().getName(), e.getMessage(), e);
return null;
}
return albumId;
}
}
protected void onPostExecution(String strResponse){
try{
if(dialog.isShowing())
dialog.dismiss();
if(strResponse != null)
{
Toast.makeText(getApplicationContext(),"Success", Toast.LENGTH_SHORT).show();
}
else{
Toast.makeText(getApplicationContext(), "Photo Uploaded Successfully", Toast.LENGTH_SHORT).show();
edittext.setText("");
}
}catch (Exception e) {
// TODO: handle exception
Toast.makeText(getApplicationContext(),"Exception Image", Toast.LENGTH_SHORT).show();
Log.e(e.getClass().getName(), e.getMessage(), e);
}
}
public String getPath(Uri uri){
String[] projection = {MediaStore.Images.Media.DATA};
Cursor cursor = managedQuery(uri, projection, null, null, null);
if(cursor != null){
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
else{
return null;
}
}
public void decodeFile(String filePath){
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath,o);
final int REQUEST_SIZE = 1024;
int width_tmp = o.outWidth,height_tmp = o.outHeight;
int scale = 1;
while(true){
// if(width_tmp <REQUEST_SIZE && height_tmp < REQUEST_SIZE){
//break;
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
// }
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
bitmap = BitmapFactory.decodeFile(filePath,o2);
imageview.setImageBitmap(bitmap);
}
}
public String convertStreamToString(InputStream in)
throws IOException {
if (in != null) {
Writer writer = new StringWriter();
char[] buffer = new char[1024];
try {
Reader reader = new BufferedReader(
new InputStreamReader(in, "UTF-8"));
int n;
while ((n = reader.read(buffer)) != -1) {
writer.write(buffer, 0, n);
}
} finally {
// in.close();
}
return writer.toString();
} else {
return "";
}
}
}
导入java.io.BufferedReader;
导入java.io.ByteArrayOutputStream;
导入java.io.File;
导入java.io.IOException;
导入java.io.InputStream;
导入java.io.InputStreamReader;
导入java.io.Reader;
导入java.io.StringWriter;
导入java.io.Writer;
导入java.util.ArrayList;
导入org.apache.http.HttpResponse;
导入org.apache.http.client.HttpClient;
导入org.apache.http.client.methods.HttpPost;
导入org.apache.http.entity.StringEntity;
导入org.apache.http.impl.client.DefaultHttpClient;
导入org.apache.http.protocol.BasicHttpContext;
导入org.apache.http.protocol.HttpContext;
导入android.app.Activity;
导入android.app.ProgressDialog;
导入android.content.Intent;
导入android.database.Cursor;
导入android.graphics.Bitmap;
导入android.graphics.BitmapFactory;
导入android.graphics.Bitmap.CompressFormat;
导入android.net.Uri;
导入android.os.AsyncTask;
导入android.os.Bundle;
导入android.provider.MediaStore;
导入android.provider.SyncStateContract.Constants;
导入android.util.Log;
导入android.view.Menu;
导入android.view.MenuInflater;
导入android.view.MenuItem;
导入android.view.view;
导入android.view.view.OnClickListener;
导入android.widget.Button;
导入android.widget.EditText;
导入android.widget.ImageView;
导入android.widget.TextView;
导入android.widget.Toast;
公共类MyImageUploader扩展活动{
私有静态最终整型拾取图像=1;
私人影像视图;
私有文本视图文本视图;
私人按钮;
私人编辑文本;
私有位图;
私人对话;
字符串albumId=ConstantData.album\u id;
整数userId=ConstantData.userId;
位图照片;
阵列列表结果;
XmlParser;
HttpResponse响应;
输入流输入;
字符串响应;
HttpPost;
整数宽度\u tmp,高度\u tmp;
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.myimageuploader);
imageview=(imageview)findViewById(R.id.upldimgvw);
按钮=(按钮)findViewById(R.id.btn_imgupld);
edittext=(edittext)findViewById(R.id.edt_cptn);
setOnClickListener(新的OnClickListener(){
@凌驾
公共void onClick(视图v){
//TODO自动生成的方法存根
如果(位图==null){
Toast.makeText(getApplicationContext(),“请选择图像…”,Toast.LENGTH\u SHORT.show();
}
否则{
dialog=ProgressDialog.show(MyImageUploader.this,“正在上载”,“请稍候…”,true);
新建ImageUploadTask().execute();
}
}
});
}
公共布尔onCreateOptions菜单(菜单){
MenuInflater充气机=getMenuInflater();
充气机。充气(右菜单。图像上传菜单,菜单);
返回true;
}
@凌驾
公共布尔值onOptionsItemSelected(菜单项项){
开关(item.getItemId()){
案例R.id.ic\U菜单\U图库:
试一试{
意图=新意图();
intent.setType(“Image/*”);
intent.setAction(intent.ACTION\u GET\u CONTENT);
startActivityForResult(Intent.createChooser(Intent,“选择图片”),PICK_IMAGE);
}捕获(例外e){
//TODO:处理异常
Toast.makeText(getApplicationContext(),“获取图片”,Toast.LENGTH\u SHORT.show();
Log.e(e.getClass().getName(),e.getMessage(),e);
打破
}
返回true;
案例R.id.ic_菜单_图像:
Toast.makeText(这是“您按下了图像!”,Toast.LENGTH_LONG.show();
打破
}
返回super.onOptionsItemSelected(项目);
}
受保护的void onActivityResult(int请求代码、int结果代码、意图数据){
Log.i(“请求代码”,“请求代码”);
Log.i(“结果代码”,“结果代码”);
Log.i(“意图数据”,即“+”数据);
开关(请求代码){
案例选取图像:
if(resultcode==Activity.RESULT\u OK);
Uri selectedImageUri=data.getData();
字符串filePath=null;
试一试{
字符串filemanagerstring=selectedImageUri.getPath();
字符串selectedImagePath=getPath(selectedImageUri);
如果(selectedImagePath!=null)
{
filePath=selectedImagePath;
}else if(filemanagerstring!=null)
{
filePath=filemanagerstring;
}否则{
Toast.makeText(getApplicationContext(),“未知路径”,Toast.LENGTH\u SHORT.show();
Log.e(“位图”,“未知路径”);
}
if(filePath!=null){
解码文件(文件路径);
}
否则{
位图=空;
}
}捕获(例外e){
//TODO:处理异常
Toast.makeText(getApplicationContext(),“内部错误”,Toast.LENGTH\u SHORT);
Log.e(e.getClass().getName(),e.getMessage(),e);
}
}
}
类ImageUploadTask扩展了AsyncTask{
@凌驾
受保护字符串doInBackground(无效…参数){
//TODO自动生成的方法存根
试一试{
DefaultHttpClient=新的DefaultHttpClient();
post=新的HttpPost(“http://192.168.5.10/ijoomer_development/index.php?option=com_ijoome
public void uploadImage(String fileName)
{
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
DataInputStream inputStream = null;
String pathToOurFile = fileName;
String urlServer = GlobalHandler.getImageUploadUrl();
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;
try
{
FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) );
URL url = new URL(urlServer);
connection = (HttpURLConnection) url.openConnection();
// Allow Inputs & Outputs
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
// Enable POST method
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
if(GlobalHandler.getUserId()!=null)
connection.addRequestProperty("user_id", GlobalHandler.getUserId());
else
connection.addRequestProperty("user_id", "007");
outputStream = new DataOutputStream( connection.getOutputStream() );
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-Disposition: form-data; name=\"upload_file\"; filename=\"" + pathToOurFile +"\"" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// Read file
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0)
{
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
int serverResponseCode = connection.getResponseCode();
String serverResponseMessage = connection.getResponseMessage();
fileInputStream.close();
outputStream.flush();
outputStream.close();
}
catch (Exception ex)
{
//Exception handling
}
}