图片流上传前压缩

图片上传之前要进行压缩 

  private void uploadPic(final String filestr, Bitmap bm) {
        bitmap = bm;
        dialog.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(filestr, fileKey, urlpic, params);
        File file = new File(filestr);
        uploadFileInThreadByOkHttp(file);

    }
    // 压缩图片并上传
    private void uploadFileInThreadByOkHttp(final File tempPic) {
        final String pic_path = tempPic.getPath();
        String targetPath = Environment.getExternalStorageDirectory().getPath() +File.separator+ "compressPic.jpg";
        final String compressImage = compressImage(pic_path, targetPath, 30);
        final File compressedPic = new File(compressImage);
        if (compressedPic.exists()) {
            LogUtils.LOGI("tag", "图片压缩上传");
            String fileKey = "pic";
            UploadUtil uploadUtil = UploadUtil.getInstance();
            uploadUtil.setOnUploadProcessListener(this); //设置监听器监听上传状态
            Map, String> params = new HashMap, String>();
            uploadUtil.uploadFile(compressedPic, "pic", urlpic, params);
        }
    }

    public static String compressImage(String filePath, String targetPath, int quality) {
        Bitmap bm = getSmallBitmap(filePath);
        //旋转照片角度，省略
        /*int degree = readPictureDegree(filePath);
        if(degree!=0){
            bm=rotateBitmap(bm,degree);
        }*/
        File outputFile = new File(targetPath);
        try {
            if (!outputFile.exists()) {
                outputFile.getParentFile().mkdirs();
                //outputFile.createNewFile();
            } else {
                outputFile.delete();
            }
            FileOutputStream out = new FileOutputStream(outputFile);
            bm.compress(Bitmap.CompressFormat.JPEG, quality, out);
        } catch (Exception e) {
        }
        return outputFile.getPath();
    }

    /**
     * 根据路径获得突破并压缩返回bitmap用于显示
     */
    public static Bitmap getSmallBitmap(String filePath) {
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;//只解析图片边沿，获取宽高
        BitmapFactory.decodeFile(filePath, options);
        // 计算缩放比
        int w = options.outWidth;
        int h = options.outHeight;

        float hh = 800f;// 这里设置高度为800f
        float ww = 480f;// 这里设置宽度为480f
        // 缩放比。由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可
        int be = 1;// be=1表示不缩放
        if (w > h && w > ww) {// 如果宽度大的话根据宽度固定大小缩放
            be = (int) (options.outWidth / ww);
        } else if (w < h && h > hh) {// 如果高度高的话根据宽度固定大小缩放
            be = (int) (options.outHeight / hh);
        }
        if (be <= 0)
            be = 1;
        options.inSampleSize = be;
        // 完整解析图片返回bitmap
        options.inJustDecodeBounds = false;
        return BitmapFactory.decodeFile(filePath, options);
    }

/**
 * 上传工具类
 *
 * @author spring sky

 *         Email :[email protected]

 *         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 = 100 * 1000; // 读取超时
    private int connectTimeout = 100 * 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, 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 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> 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> 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, 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 {

    }

}