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Android选择图片或拍照图片上传到服务器

作者：手机用户2702933940 | 来源：互联网 | 2022-01-14 13:30

这篇文章主要为大家详细介绍了android选择图片或拍照图片上传到服务器的方法，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

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
 
 * Email :vipa1888@163.com
 
 * QQ: 840950105
 
 * 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 params = new HashMap(); 
  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
 
 * Email :vipa1888@163.com
 
 * QQ: 840950105
 
 * @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
 
 * Email :vipa1888@163.com
 
 * QQ: 840950105
 
 * 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 xxx就是这里的fileKey 
  * @param RequestURL 
  *   请求的URL 
  */ 
 public void uploadFile(String filePath, String fileKey, String RequestURL, 
   Map 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 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 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 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 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

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。