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); //设置监听器监听上传状态 

  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！

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