uploadpgy.gradle

// 打包apk上传蒲公英
task packageApk(group: 'upload') {
    // 让packageApk 依赖于assembleRelease. 包构建成功后，才会执行uploadApk()
    dependsOn("assembleRelease")
    doLast {
        uploadApk()
    }
}

def uploadApk() {
    // 查找上传的 apk 文件, 这里需要换成自己 apk 路径"
    def apkDir = new File("./app/build/outputs/apk/release")
    def apk = null
    for (int i = apkDir.listFiles().length - 1; i >= 0; i--) {
        File file = apkDir.listFiles()[i]
        if (file.name.endsWith(".apk")) {
            apk = file
            break
        }
    }
    if (apk == null || !apk.exists()) {
        throw new RuntimeException("apk file not exists!")
    }
    println "*************** upload start ***************"

    String BOUNDARY = UUID.randomUUID().toString(); // 边界标识 随机生成
    String PREFIX = "--", LINE_END = "\r\n";
    String CONTENT_TYPE = "multipart/form-data"; // 内容类型

    try {
        URL url = new URL("https://www.pgyer.com/apiv2/app/upload");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setReadTimeout(30000);
        conn.setConnectTimeout(30000);
        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", "UTF-8"); // 设置编码
        conn.setRequestProperty("connection", "keep-alive");
        conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);
        DataOutputStream dos = new DataOutputStream(conn.getOutputStream());

        StringBuffer sb = new StringBuffer();
        sb.append(PREFIX).append(BOUNDARY).append(LINE_END);//分界符
        sb.append("Content-Disposition: form-data; name=\"" + "_api_key" + "\"" + LINE_END);
        sb.append("Content-Type: text/plain; charset=UTF-8" + LINE_END);
        //sb.append("Content-Transfer-Encoding: 8bit" + LINE_END);
        sb.append(LINE_END);
        sb.append("你自己的蒲公英key");
        sb.append(LINE_END);//换行！


        if (apk != null) {
            /**
             * 当文件不为空，把文件包装并且上传
             */

            sb.append(PREFIX);
            sb.append(BOUNDARY);
            sb.append(LINE_END);
            /**
             * 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("Content-Disposition: form-data; name=\"file\"; filename=\"" + apk.getName() + "\"" + LINE_END);
            sb.append("Content-Type: application/octet-stream; charset=UTF-8" + LINE_END);
            sb.append(LINE_END);
            dos.write(sb.toString().getBytes())

            InputStream is = new FileInputStream(apk)
            byte[] bytes = new byte[1024];
            int len = 0;
            while ((len = is.read(bytes)) != -1) {
                dos.write(bytes, 0, len);
            }
            is.close();
            dos.write(LINE_END.getBytes());
            byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END).getBytes();

            dos.write(end_data);
            dos.flush();
            /**
             * 获取响应码 200=成功 当响应成功，获取响应的流
             */
            int res = conn.getResponseCode();
            if (res == 200) {
                println("Upload request success");
                BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()))
                StringBuffer ret = new StringBuffer();
                String line
                while ((line = br.readLine()) != null) {
                    ret.append(line)
                }
                String result = ret.toString();
                println("Upload result : " + result);
                println "*************** upload finish ***************"
            }
        }
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}