Android选择图片或拍照图片上传到服务器

最近要搞一个项目，需要上传相册和拍照的图片，不负所望，终于完成了！  不过需要说明一下，其实网上很多教程拍照的图片，都是缩略图不是很清晰，所以需要在调用照相机的时候，事先生成一个地址，用于标识拍照的图片URI

具体上传代码：

1.选择图片和上传界面，包括上传完成和异常的回调监听

package com.spring.sky.image.upload;

import java.util.HashMap;
import java.util.Map;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.spring.sky.image.upload.network.UploadUtil;
import com.spring.sky.image.upload.network.UploadUtil.OnUploadProcessListener;
/**
* @author spring sky<br>
* Email :vipa1888@163.com<br>
* QQ: 840950105<br>
* 说明：主要用于选择文件和上传文件操作
*/
public class MainActivity extends Activity implements OnClickListener,OnUploadProcessListener{
private static final String TAG = "uploadImage";

/**
 * 去上传文件
 */
protected static final int TO_UPLOAD_FILE = 1;
/**
 * 上传文件响应
 */
protected static final int UPLOAD_FILE_DONE = 2; //
/**
 * 选择文件
 */
public static final int TO_SELECT_PHOTO = 3;
/**
 * 上传初始化
 */
private static final int UPLOAD_INIT_PROCESS = 4;
/**
 * 上传中
 */
private static final int UPLOAD_IN_PROCESS = 5;
/***
 * 这里的这个URL是我服务器的javaEE环境URL
 */
private static String requestURL = "http://192.168.10.160:8080/fileUpload/p/file!upload";
private Button selectButton,uploadButton;
private ImageView imageView;
private TextView uploadImageResult;
private ProgressBar progressBar;

private String picPath = null;
private ProgressDialog progressDialog;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 initView();
}

/**
 * 初始化数据
 */
private void initView() {
 selectButton = (Button) this.findViewById(R.id.selectImage);
 uploadButton = (Button) this.findViewById(R.id.uploadImage);
 selectButton.setOnClickListener(this);
 uploadButton.setOnClickListener(this);
 imageView = (ImageView) this.findViewById(R.id.imageView);
 uploadImageResult = (TextView) findViewById(R.id.uploadImageResult);
 progressDialog = new ProgressDialog(this);
 progressBar = (ProgressBar) findViewById(R.id.progressBar1);
}

@Override
public void onClick(View v) {
 switch (v.getId()) {
 case R.id.selectImage:
  Intent intent = new Intent(this,SelectPicActivity.class);
  startActivityForResult(intent, TO_SELECT_PHOTO);
  break;
 case R.id.uploadImage:
  if(picPath!=null)
  {
   handler.sendEmptyMessage(TO_UPLOAD_FILE);
  }else{
   Toast.makeText(this, "上传的文件路径出错", Toast.LENGTH_LONG).show();
  }
  break;
 default:
  break;
 }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 if(resultCode==Activity.RESULT_OK && requestCode == TO_SELECT_PHOTO)
 {
  picPath = data.getStringExtra(SelectPicActivity.KEY_PHOTO_PATH);
  Log.i(TAG, "最终选择的图片="+picPath);
  Bitmap bm = BitmapFactory.decodeFile(picPath);
  imageView.setImageBitmap(bm);
 }
 super.onActivityResult(requestCode, resultCode, data);
}

/**
 * 上传服务器响应回调
 */
@Override
public void onUploadDone(int responseCode, String message) {
 progressDialog.dismiss();
 Message msg = Message.obtain();
 msg.what = UPLOAD_FILE_DONE;
 msg.arg1 = responseCode;
 msg.obj = message;
 handler.sendMessage(msg);
}

private void toUploadFile()
{
 uploadImageResult.setText("正在上传中...");
 progressDialog.setMessage("正在上传文件...");
 progressDialog.show();
 String fileKey = "pic";
 UploadUtil uploadUtil = UploadUtil.getInstance();;
 uploadUtil.setOnUploadProcessListener(this); //设置 * 监听上传状态

Map<String, String> params = new HashMap<String, String>();
 params.put("orderId", "11111");
 uploadUtil.uploadFile( picPath,fileKey, requestURL,params);
}

private Handler handler = new Handler(){
 @Override
 public void handleMessage(Message msg) {
  switch (msg.what) {
  case TO_UPLOAD_FILE:
   toUploadFile();
   break;

case UPLOAD_INIT_PROCESS:
   progressBar.setMax(msg.arg1);
   break;
  case UPLOAD_IN_PROCESS:
   progressBar.setProgress(msg.arg1);
   break;
  case UPLOAD_FILE_DONE:
   String result = "响应码："+msg.arg1+"\n响应信息："+msg.obj+"\n耗时："+UploadUtil.getRequestTime()+"秒";
   uploadImageResult.setText(result);
   break;
  default:
   break;
  }
  super.handleMessage(msg);
 }

};

@Override
public void onUploadProcess(int uploadSize) {
 Message msg = Message.obtain();
 msg.what = UPLOAD_IN_PROCESS;
 msg.arg1 = uploadSize;
 handler.sendMessage(msg );
}

@Override
public void initUpload(int fileSize) {
 Message msg = Message.obtain();
 msg.what = UPLOAD_INIT_PROCESS;
 msg.arg1 = fileSize;
 handler.sendMessage(msg );
}

}

2.选择图片界面，主要涉及两种方式：选择图片和及时拍照图片

package com.spring.sky.image.upload;

import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.Toast;

/**
* @author spring sky<br>
* Email :vipa1888@163.com<br>
* QQ: 840950105<br>
* @version 创建时间：2012-11-22 上午9:20:03
* 说明：主要用于选择文件操作
*/

public class SelectPicActivity extends Activity implements OnClickListener{

/***
 * 使用照相机拍照获取图片
 */
public static final int SELECT_PIC_BY_TACK_PHOTO = 1;
/***
 * 使用相册中的图片
 */
public static final int SELECT_PIC_BY_PICK_PHOTO = 2;

/***
 * 从Intent获取图片路径的KEY
 */
public static final String KEY_PHOTO_PATH = "photo_path";

private static final String TAG = "SelectPicActivity";

private LinearLayout dialogLayout;
private Button takePhotoBtn,pickPhotoBtn,cancelBtn;

/**获取到的图片路径*/
private String picPath;

private Intent lastIntent ;

private Uri photoUri;
@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.select_pic_layout);
 initView();
}
/**
 * 初始化加载View
 */
private void initView() {
 dialogLayout = (LinearLayout) findViewById(R.id.dialog_layout);
 dialogLayout.setOnClickListener(this);
 takePhotoBtn = (Button) findViewById(R.id.btn_take_photo);
 takePhotoBtn.setOnClickListener(this);
 pickPhotoBtn = (Button) findViewById(R.id.btn_pick_photo);
 pickPhotoBtn.setOnClickListener(this);
 cancelBtn = (Button) findViewById(R.id.btn_cancel);
 cancelBtn.setOnClickListener(this);

lastIntent = getIntent();
}

@Override
public void onClick(View v) {
 switch (v.getId()) {
 case R.id.dialog_layout:
  finish();
  break;
 case R.id.btn_take_photo:
  takePhoto();
  break;
 case R.id.btn_pick_photo:
  pickPhoto();
  break;
 default:
  finish();
  break;
 }
}

/**
 * 拍照获取图片
 */
private void takePhoto() {
 //执行拍照前，应该先判断SD卡是否存在
 String SDState = Environment.getExternalStorageState();
 if(SDState.equals(Environment.MEDIA_MOUNTED))
 {

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//"android.media.action.IMAGE_CAPTURE"
  /***
   * 需要说明一下，以下操作使用照相机拍照，拍照后的图片会存放在相册中的
   * 这里使用的这种方式有一个好处就是获取的图片是拍照后的原图
   * 如果不实用ContentValues存放照片路径的话，拍照后获取的图片为缩略图不清晰
   */
  ContentValues values = new ContentValues();
  photoUri = this.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
  intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, photoUri);
  /**-----------------*/
  startActivityForResult(intent, SELECT_PIC_BY_TACK_PHOTO);
 }else{
  Toast.makeText(this,"内存卡不存在", Toast.LENGTH_LONG).show();
 }
}

/***
 * 从相册中取图片
 */
private void pickPhoto() {
 Intent intent = new Intent();
 intent.setType("image/*");
 intent.setAction(Intent.ACTION_GET_CONTENT);
 startActivityForResult(intent, SELECT_PIC_BY_PICK_PHOTO);
}

@Override
public boolean onTouchEvent(MotionEvent event) {
 finish();
 return super.onTouchEvent(event);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 if(resultCode == Activity.RESULT_OK)
 {
  doPhoto(requestCode,data);
 }
 super.onActivityResult(requestCode, resultCode, data);
}

/**
 * 选择图片后，获取图片的路径
 * @param requestCode
 * @param data
 */
private void doPhoto(int requestCode,Intent data)
{
 if(requestCode == SELECT_PIC_BY_PICK_PHOTO ) //从相册取图片，有些手机有异常情况，请注意
 {
  if(data == null)
  {
   Toast.makeText(this, "选择图片文件出错", Toast.LENGTH_LONG).show();
   return;
  }
  photoUri = data.getData();
  if(photoUri == null )
  {
   Toast.makeText(this, "选择图片文件出错", Toast.LENGTH_LONG).show();
   return;
  }
 }
 String[] pojo = {MediaStore.Images.Media.DATA};
 Cursor cursor = managedQuery(photoUri, pojo, null, null,null);  
 if(cursor != null )
 {
  int columnIndex = cursor.getColumnIndexOrThrow(pojo[0]);
  cursor.moveToFirst();
  picPath = cursor.getString(columnIndex);
  cursor.close();
 }
 Log.i(TAG, "imagePath = "+picPath);
 if(picPath != null && ( picPath.endsWith(".png") || picPath.endsWith(".PNG") ||picPath.endsWith(".jpg") ||picPath.endsWith(".JPG") ))
 {
  lastIntent.putExtra(KEY_PHOTO_PATH, picPath);
  setResult(Activity.RESULT_OK, lastIntent);
  finish();
 }else{
  Toast.makeText(this, "选择图片文件不正确", Toast.LENGTH_LONG).show();
 }
}
}

3. 上传工具类，主要实现了图片的上传，上传过程的初始化监听和上传完成的监听，还有上传耗时的计算

package com.spring.sky.image.upload.network;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Iterator;
import java.util.Map;
import java.util.UUID;

import android.util.Log;

/**
*
* 上传工具类
* @author spring sky<br>
* Email :vipa1888@163.com<br>
* QQ: 840950105<br>
* 支持上传文件和参数
*/
public class UploadUtil {
private static UploadUtil uploadUtil;
private static final String BOUNDARY = UUID.randomUUID().toString(); // 边界标识 随机生成
private static final String PREFIX = "--";
private static final String LINE_END = "\r\n";
private static final String CONTENT_TYPE = "multipart/form-data"; // 内容类型
private UploadUtil() {

}

/**
 * 单例模式获取上传工具类
 * @return
 */
public static UploadUtil getInstance() {
 if (null == uploadUtil) {
  uploadUtil = new UploadUtil();
 }
 return uploadUtil;
}

private static final String TAG = "UploadUtil";
private int readTimeOut = 10 * 1000; // 读取超时
private int connectTimeout = 10 * 1000; // 超时时间
/***
 * 请求使用多长时间
 */
private static int requestTime = 0;

private static final String CHARSET = "utf-8"; // 设置编码

/***
 * 上传成功
 */
public static final int UPLOAD_SUCCESS_CODE = 1;
/**
 * 文件不存在
 */
public static final int UPLOAD_FILE_NOT_EXISTS_CODE = 2;
/**
 * 服务器出错
 */
public static final int UPLOAD_SERVER_ERROR_CODE = 3;
protected static final int WHAT_TO_UPLOAD = 1;
protected static final int WHAT_UPLOAD_DONE = 2;

/**
 * android上传文件到服务器
 *
 * @param filePath
 *   需要上传的文件的路径
 * @param fileKey
 *   在网页上<input type=file name=xxx/> xxx就是这里的fileKey
 * @param RequestURL
 *   请求的URL
 */
public void uploadFile(String filePath, String fileKey, String RequestURL,
  Map<String, String> param) {
 if (filePath == null) {
  sendMessage(UPLOAD_FILE_NOT_EXISTS_CODE,"文件不存在");
  return;
 }
 try {
  File file = new File(filePath);
  uploadFile(file, fileKey, RequestURL, param);
 } catch (Exception e) {
  sendMessage(UPLOAD_FILE_NOT_EXISTS_CODE,"文件不存在");
  e.printStackTrace();
  return;
 }
}

/**
 * android上传文件到服务器
 *
 * @param file
 *   需要上传的文件
 * @param fileKey
 *   在网页上<input type=file name=xxx/> xxx就是这里的fileKey
 * @param RequestURL
 *   请求的URL
 */
public void uploadFile(final File file, final String fileKey,
  final String RequestURL, final Map<String, String> param) {
 if (file == null || (!file.exists())) {
  sendMessage(UPLOAD_FILE_NOT_EXISTS_CODE,"文件不存在");
  return;
 }

Log.i(TAG, "请求的URL=" + RequestURL);
 Log.i(TAG, "请求的fileName=" + file.getName());
 Log.i(TAG, "请求的fileKey=" + fileKey);
 new Thread(new Runnable() { //开启线程上传文件
  @Override
  public void run() {
   toUploadFile(file, fileKey, RequestURL, param);
  }
 }).start();

}

private void toUploadFile(File file, String fileKey, String RequestURL,
  Map<String, String> param) {
 String result = null;
 requestTime= 0;

long requestTime = System.currentTimeMillis();
 long responseTime = 0;

try {
  URL url = new URL(RequestURL);
  HttpURLConnection conn = (HttpURLConnection) url.openConnection();
  conn.setReadTimeout(readTimeOut);
  conn.setConnectTimeout(connectTimeout);
  conn.setDoInput(true); // 允许输入流
  conn.setDoOutput(true); // 允许输出流
  conn.setUseCaches(false); // 不允许使用缓存
  conn.setRequestMethod("POST"); // 请求方式
  conn.setRequestProperty("Charset", CHARSET); // 设置编码
  conn.setRequestProperty("connection", "keep-alive");
  conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
  conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);
//   conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

/**
   * 当文件不为空，把文件包装并且上传
   */
  DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
  StringBuffer sb = null;
  String params = "";

/***
   * 以下是用于上传参数
   */
  if (param != null && param.size() > 0) {
   Iterator<String> it = param.keySet().iterator();
   while (it.hasNext()) {
    sb = null;
    sb = new StringBuffer();
    String key = it.next();
    String value = param.get(key);
    sb.append(PREFIX).append(BOUNDARY).append(LINE_END);
    sb.append("Content-Disposition: form-data; name=\"").append(key).append("\"").append(LINE_END).append(LINE_END);
    sb.append(value).append(LINE_END);
    params = sb.toString();
    Log.i(TAG, key+"="+params+"##");
    dos.write(params.getBytes());
//     dos.flush();
   }
  }

sb = null;
  params = null;
  sb = new StringBuffer();
  /**
   * 这里重点注意： name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件
   * filename是文件的名字，包含后缀名的 比如:abc.png
   */
  sb.append(PREFIX).append(BOUNDARY).append(LINE_END);
  sb.append("Content-Disposition:form-data; name=\"" + fileKey
    + "\"; filename=\"" + file.getName() + "\"" + LINE_END);
  sb.append("Content-Type:image/pjpeg" + LINE_END); // 这里配置的Content-type很重要的 ，用于服务器端辨别文件的类型的
  sb.append(LINE_END);
  params = sb.toString();
  sb = null;

Log.i(TAG, file.getName()+"=" + params+"##");
  dos.write(params.getBytes());
  /**上传文件*/
  InputStream is = new FileInputStream(file);
  onUploadProcessListener.initUpload((int)file.length());
  byte[] bytes = new byte[1024];
  int len = 0;
  int curLen = 0;
  while ((len = is.read(bytes)) != -1) {
   curLen += len;
   dos.write(bytes, 0, len);
   onUploadProcessListener.onUploadProcess(curLen);
  }
  is.close();

dos.write(LINE_END.getBytes());
  byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END).getBytes();
  dos.write(end_data);
  dos.flush();
//  
//   dos.write(tempOutputStream.toByteArray());
  /**
   * 获取响应码 200=成功 当响应成功，获取响应的流
   */
  int res = conn.getResponseCode();
  responseTime = System.currentTimeMillis();
  this.requestTime = (int) ((responseTime-requestTime)/1000);
  Log.e(TAG, "response code:" + res);
  if (res == 200) {
   Log.e(TAG, "request success");
   InputStream input = conn.getInputStream();
   StringBuffer sb1 = new StringBuffer();
   int ss;
   while ((ss = input.read()) != -1) {
    sb1.append((char) ss);
   }
   result = sb1.toString();
   Log.e(TAG, "result : " + result);
   sendMessage(UPLOAD_SUCCESS_CODE, "上传结果："
     + result);
   return;
  } else {
   Log.e(TAG, "request error");
   sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败：code=" + res);
   return;
  }
 } catch (MalformedURLException e) {
  sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败：error=" + e.getMessage());
  e.printStackTrace();
  return;
 } catch (IOException e) {
  sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败：error=" + e.getMessage());
  e.printStackTrace();
  return;
 }
}

/**
 * 发送上传结果
 * @param responseCode
 * @param responseMessage
 */
private void sendMessage(int responseCode,String responseMessage)
{
 onUploadProcessListener.onUploadDone(responseCode, responseMessage);
}

/**
 * 下面是一个自定义的回调函数，用到回调上传文件是否完成
 *
 * @author shimingzheng
 *
 */
public static interface OnUploadProcessListener {
 /**
  * 上传响应
  * @param responseCode
  * @param message
  */
 void onUploadDone(int responseCode, String message);
 /**
  * 上传中
  * @param uploadSize
  */
 void onUploadProcess(int uploadSize);
 /**
  * 准备上传
  * @param fileSize
  */
 void initUpload(int fileSize);
}
private OnUploadProcessListener onUploadProcessListener;

public void setOnUploadProcessListener(
  OnUploadProcessListener onUploadProcessListener) {
 this.onUploadProcessListener = onUploadProcessListener;
}

public int getReadTimeOut() {
 return readTimeOut;
}

public void setReadTimeOut(int readTimeOut) {
 this.readTimeOut = readTimeOut;
}

public int getConnectTimeout() {
 return connectTimeout;
}

public void setConnectTimeout(int connectTimeout) {
 this.connectTimeout = connectTimeout;
}
/**
 * 获取上传使用的时间
 * @return
 */
public static int getRequestTime() {
 return requestTime;
}

public static interface uploadProcessListener{

}

}

以上代码，我就不详细讲解原理，相关难点注释已经写得很清楚了！分享出来，和大家一起学习！

相关服务器端代码和客户端下载：
android客户端下载
javaEE服务器端

来源：http://blog.csdn.net/springsky_/article/details/8213898