Android 上传图片、上传文件、提交表单 工具类

今天一天用MultiPartEntity,httpClient各种问题，无从下手。
于是，从最原生的HttpURLConnection着手，晚上，从大神那接过一武功秘籍，放此地共享与大家：

package com.shoes.seek.one.Common.utils;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;
import java.util.UUID;

import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.util.Log;

public class FileUploadUtil {
    public static String fileUploadBreak = "fileUploadBreak";
    private HttpURLConnection conn;

    public void stopConnection() {
        if (conn != null) {
            conn.disconnect();
        }
    }

    public String uploadImage(String urlString, Map<String, String> params,
            Map<String, Bitmap> bmMap) throws Exception {
        DataOutputStream dos;
        String boundary = UUID.randomUUID().toString(); // 边界标识 随机生成
        String twoLine = "--";
        String end = "\r\n";
        URL url = new URL(urlString);
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(30000);
        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setRequestProperty("Charset", "utf-8");
        conn.setRequestProperty("Content-Type",
                "multipart/form-data; boundary=" + boundary);
        dos = new DataOutputStream(conn.getOutputStream());
        StringBuffer sb = new StringBuffer();
        if (params != null) {
            for (String key : params.keySet()) {
                sb.append(end + twoLine + boundary + end);
                sb.append("Content-Disposition:form-data;name=\"").append(key)
                        .append("\"" + end);
                sb.append(end);
                sb.append(params.get(key));
            }
        }
        sb.append(end);
        dos.write(sb.toString().getBytes());
        /* * sb.append(end + twoLine + boundary + end); * sb.append("Content-Disposition:form-data;name=\"").append("version") * .append("\"" + end); sb.append(end); sb.append("1"); * * sb.append(end + twoLine + boundary + end); * sb.append("Content-Disposition:form-data;name=\"").append("phone") * .append("\"" + end); sb.append(end); sb.append("1"); * * sb.append(end + twoLine + boundary + end); * sb.append("Content-Disposition:form-data;name=\"").append("action") * .append("\"" + end); sb.append(end); sb.append("2"); * * sb.append(end + twoLine + boundary + end); * sb.append("Content-Disposition:form-data;name=\"").append("str") * .append("\"" + end); sb.append(end); sb.append("M"); * * sb.append(end + twoLine + boundary + end); * sb.append("Content-Disposition:form-data;name=\"").append("token") * .append("\"" + end); sb.append(end); * sb.append("5D1EF6E5-AECC-2FCF-1228-4817BBCFC5DA"); sb.append(end); */
        if (bmMap != null) {
            for (String key : bmMap.keySet()) {

                StringBuffer fileBuffer = new StringBuffer();
                fileBuffer.append(twoLine + boundary + end);
                fileBuffer.append("Content-Disposition:form-data;name=\"")
                        .append(key).append("\";").append("filename=\"")
                        .append("aa.png").append("\"" + end);
                fileBuffer.append("Content-Type: ").append("image/png")
                        .append(end);
                fileBuffer.append(end);
                dos.write(fileBuffer.toString().getBytes());

                /* * dis = new DataInputStream(new FileInputStream(new * File(path))); int lenth = 0; byte[] bytes = new byte[1024]; * while ((lenth = dis.read(bytes)) != -1) { } dis.close(); */

                dos.write(bmToByte(bmMap.get(key)));

                dos.write(end.getBytes());
            }
        }
        String string = twoLine + boundary + twoLine + end;
        dos.write(string.getBytes());
        dos.flush();
        dos.close();

        try {
            Thread.sleep(1);
        } catch (InterruptedException e) {
            if (conn != null) {
                conn.disconnect();
            }
            return fileUploadBreak;
        }
        /* 读取服务器信息 */
        BufferedReader br = new BufferedReader(new InputStreamReader(
                conn.getInputStream()));
        String getString = null;
        StringBuffer getBuffer = new StringBuffer();
        while ((getString = br.readLine()) != null) {
            getBuffer.append(getString);

            try {
                Thread.sleep(1);
            } catch (InterruptedException e) {
                if (conn != null) {
                    conn.disconnect();
                }
                return fileUploadBreak;
            }
        }
        br.close();
        if (conn != null) {
            conn.disconnect();
            conn = null;
        }
        if (getBuffer.length() == 0) {
            return "";
        }
        return getBuffer.toString();
    }

    public String uploadImageJpg(String urlString, Map<String, String> params,
            Map<String, Bitmap> bmMap) throws Exception {
        DataOutputStream dos;
        String boundary = UUID.randomUUID().toString(); // 边界标识 随机生成
        String twoLine = "--";
        String end = "\r\n";
        URL url = new URL(urlString);
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(30000);
        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setRequestProperty("Charset", "utf-8");
        conn.setRequestProperty("Content-Type",
                "multipart/form-data; boundary=" + boundary);

        dos = new DataOutputStream(conn.getOutputStream());
        StringBuffer sb = new StringBuffer();
        if (params != null) {
            for (String key : params.keySet()) {
                sb.append(end + twoLine + boundary + end);
                sb.append("Content-Disposition:form-data;name=\"").append(key)
                        .append("\"" + end);
                sb.append(end);
                sb.append(params.get(key));
            }
        }
        sb.append(end);
        dos.write(sb.toString().getBytes());
        if (bmMap != null) {
            for (String key : bmMap.keySet()) {

                StringBuffer fileBuffer = new StringBuffer();
                fileBuffer.append(twoLine + boundary + end);
                fileBuffer.append("Content-Disposition:form-data;name=\"")
                        .append(key).append("\";").append("filename=\"")
                        .append("aa.jpeg").append("\"" + end);
                fileBuffer.append("Content-Type: ").append("image/jpeg")
                        .append(end);
                fileBuffer.append(end);
                dos.write(fileBuffer.toString().getBytes());

                dos.write(bmToByteForJpg(bmMap.get(key)));

                dos.write(end.getBytes());
            }
        }
        String string = twoLine + boundary + twoLine + end;
        dos.write(string.getBytes());
        dos.flush();
        dos.close();

        /* 读取服务器信息 */
        BufferedReader br = new BufferedReader(new InputStreamReader(
                conn.getInputStream()));
        String getString = null;
        StringBuffer getBuffer = new StringBuffer();
        while ((getString = br.readLine()) != null) {
            getBuffer.append(getString);
        }
        br.close();
        if (conn != null) {
            conn.disconnect();
            conn = null;
        }
        if (getBuffer.length() == 0) {
            return "";
        }
        return getBuffer.toString();
    }
    public String uploadImageJpg(String urlString, Map<String, String> params,
            Map<String, Bitmap> bmMap,String fileName) throws Exception {
        DataOutputStream dos;
        String boundary = UUID.randomUUID().toString(); // 边界标识 随机生成
        String twoLine = "--";
        String end = "\r\n";
        URL url = new URL(urlString);
        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(30000);
        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setRequestProperty("Charset", "utf-8");
        conn.setRequestProperty("Content-Type",
                "multipart/form-data; boundary=" + boundary);

        dos = new DataOutputStream(conn.getOutputStream());
        StringBuffer sb = new StringBuffer();
        if (params != null) {
            for (String key : params.keySet()) {
                sb.append(end + twoLine + boundary + end);
                sb.append("Content-Disposition:form-data;name=\"").append(key)
                .append("\"" + end);
                sb.append(end);
                sb.append(params.get(key));
            }
        }
        sb.append(end);
        dos.write(sb.toString().getBytes());
        if (bmMap != null) {
            for (String key : bmMap.keySet()) {

                StringBuffer fileBuffer = new StringBuffer();
                fileBuffer.append(twoLine + boundary + end);
                fileBuffer.append("Content-Disposition:form-data;name=\"")
                .append(key).append("\";").append("filename=\"")
                .append(fileName).append("\"" + end);
                fileBuffer.append("Content-Type: ").append("image/jpeg")
                .append(end);
                fileBuffer.append(end);
                dos.write(fileBuffer.toString().getBytes());

                dos.write(bmToByteForJpg(bmMap.get(key)));

                dos.write(end.getBytes());
            }
        }
        String string = twoLine + boundary + twoLine + end;
        dos.write(string.getBytes());
        dos.flush();
        dos.close();

        /* 读取服务器信息 */
        BufferedReader br = new BufferedReader(new InputStreamReader(
                conn.getInputStream()));
        String getString = null;
        StringBuffer getBuffer = new StringBuffer();
        while ((getString = br.readLine()) != null) {
            getBuffer.append(getString);
        }
        br.close();
        if (conn != null) {
            conn.disconnect();
            conn = null;
        }
        if (getBuffer.length() == 0) {
            return "";
        }
        return getBuffer.toString();
    }

    public static byte[] bmToByte(Bitmap bm) {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        bm.compress(CompressFormat.PNG, 100, bos);
        return bos.toByteArray();
    }

    public static byte[] bmToByteForJpg(Bitmap bm) {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        bm.compress(CompressFormat.JPEG, 60, bos);
        return bos.toByteArray();
    }

    /** * 上传文件 * * @param urlStr * @param textMap * @param fileMap * @return */
    public  String formUpload(String urlStr, Map<String, String> textMap,
                                    Map<String, String> fileMap) {
        String res = "";
        String BOUNDARY = "---------------------------123821742118716"; // boundary就是request头和上传文件内容的分隔符
        try {
            URL url = new URL(urlStr);
            conn = (HttpURLConnection) url.openConnection();
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(30000);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("User-Agent",
                    "Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)");
            conn.setRequestProperty("Content-Type",
                    "multipart/form-data; boundary=" + BOUNDARY);

            OutputStream out = new DataOutputStream(conn.getOutputStream());
            // text
            if (textMap != null) {
                StringBuffer strBuf = new StringBuffer();
                for (String inputName : textMap.keySet()) {
                    String inputValue = textMap.get(inputName);
                    if (inputValue == null) {
                        continue;
                    }
                    strBuf.append("\r\n").append("--").append(BOUNDARY)
                            .append("\r\n");
                    strBuf.append("Content-Disposition: form-data; name=\""
                            + inputName + "\"\r\n\r\n");
                    strBuf.append(inputValue);
                }
                out.write(strBuf.toString().getBytes());
            }

            // file
            if (fileMap != null) {
                for (String inputName : fileMap.keySet()) {
                    String inputValue = fileMap.get(inputName);
                    if (inputValue == null) {
                        continue;
                    }
                    File file = new File(inputValue);
                    String filename = file.getName();
                    String contentType = null;
                    // new MimeTypeMap().getContentType(file);
                    if (filename.endsWith(".png")) {
                        contentType = "image/png";
                    }
                    if (filename.endsWith(".jpeg")) {
                        contentType = "image/jpeg";
                    }
                    if (contentType == null || contentType.equals("")) {
                        contentType = "application/octet-stream";
                    }

                    StringBuffer strBuf = new StringBuffer();
                    strBuf.append("\r\n").append("--").append(BOUNDARY)
                            .append("\r\n");
                    strBuf.append("Content-Disposition: form-data; name=\""
                            + inputName + "\"; filename=\"" + filename
                            + "\"\r\n");
                    strBuf.append("Content-Type:" + contentType + "\r\n\r\n");

                    out.write(strBuf.toString().getBytes());

                    DataInputStream in = new DataInputStream(
                            new FileInputStream(file));
                    int bytes = 0;
                    byte[] bufferOut = new byte[1024];
                    while ((bytes = in.read(bufferOut)) != -1) {
                        out.write(bufferOut, 0, bytes);
                    }
                    in.close();
                    Log.e("http", strBuf.toString());
                }
            }

            byte[] endData = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();
            out.write(endData);
            out.flush();
            out.close();

            // 读取返回数据
            StringBuffer strBuf = new StringBuffer();
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    conn.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                strBuf.append(line).append("\n");
            }
            res = strBuf.toString();
            reader.close();
            reader = null;
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (conn != null) {
                conn.disconnect();
                conn = null;
            }
        }
        return res;
    }

}

拿去用！不谢！最后附加一个压缩图片的方法：

    public static Bitmap cropBitmap(String path, Bitmap bitmap, int maxW,
                                       int maxH) {

        if (path != null && bitmap != null) {
            return null;
        }
        if (path == null && bitmap == null) {
            return null;
        }
        if (maxW == 0 || maxH == 0) {
            return null;
        }
        Bitmap bm;
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        if (path != null) {
            bm = BitmapFactory.decodeFile(path, options);
        }
        options.inJustDecodeBounds = false;
        int width = options.outWidth;
        int height = options.outHeight;

        if (width <= maxW && height <= maxH) {
            return BitmapFactory.decodeFile(path);
        } else if (width > maxW || height > maxH) {
            // 图片过大进行缩放
            int beW = 0;
            int beH = 0;
            int be = 1;
            if (maxH != 0 && maxW != 0) {
                beW = width / maxW;
                beH = height / maxH;
            }
            be = Math.max(beH, beW);
            if (be < 1) {
                be = 1;
            }
            options.inSampleSize = be;
            bm = BitmapFactory.decodeFile(path, options);
            // 重新测量长度，修改绝对的长和宽
            int scaleW = bm.getWidth();
            int scaleH = bm.getHeight();

            Matrix matrix = new Matrix();
            if (scaleH <= maxH && scaleW <= maxW) {
                return bm;
            }
            if (scaleH > maxH || scaleW > maxW) {
                float x = (float) maxW / (float) scaleW;
                float y = (float) maxH / (float) scaleH;
                if (x < y) {
                    matrix.postScale(x, x);
                } else {
                    matrix.postScale(y, y);
                }
                bm = Bitmap
                        .createBitmap(bm, 0, 0, scaleW, scaleH, matrix, true);
                return bm;
            }

        }
        return null;
    }