转自　Android技术分享

[链接：] (https://www.jianshu.com/p/d2df4c0c3420)

package com.hy.autolink.test002;

import android.Manifest;
import android.content.Context;

import android.content.pm.PackageManager;


import android.os.Build;

import android.provider.Settings;
import android.support.v4.app.ActivityCompat;
import android.telephony.TelephonyManager;

import java.security.MessageDigest;
import java.util.Locale;
import java.util.UUID;
import android.util.Log;


public class DeviceIdUtil {
    /**
     * 获得设备硬件标识
     *
     * @param context 上下文
     * @return 设备硬件标识
     */
    public String getDeviceId(Context context) {
        StringBuilder sbDeviceId = new StringBuilder();

        //获得设备默认IMEI（>=6.0 需要ReadPhoneState权限）
        String imei = getIMEI(context);
        Log.d("HY","IMEI: " +imei);
        //获得AndroidId（无需权限）
        String androidid = getAndroidId(context);
        Log.d("HY","androidid: " +androidid);
        //获得设备序列号（无需权限）
        String serial = getSERIAL();
        Log.d("HY","serial: " +serial);
        //获得硬件uuid（根据硬件相关属性，生成uuid）（无需权限）
        String uuid = getDeviceUUID().replace("-", "");
        Log.d("HY","uuid: " +uuid);

        //追加imei
        if (imei != null && imei.length() > 0) {
            sbDeviceId.append(imei);
            sbDeviceId.append("|");
        }
        Log.d("HY","sbDeviceId 1: " +sbDeviceId);
        //追加androidid
        if (androidid != null && androidid.length() > 0) {
            sbDeviceId.append(androidid);
            sbDeviceId.append("|");
        }
        Log.d("HY","sbDeviceId 2: " +sbDeviceId);
        //追加serial
        if (serial != null && serial.length() > 0) {
            sbDeviceId.append(serial);
            sbDeviceId.append("|");
        }
        Log.d("HY","sbDeviceId 3: " +sbDeviceId);
        //追加硬件uuid
        if (uuid != null && uuid.length() > 0) {
            sbDeviceId.append(uuid);
        }

        //生成SHA1，统一DeviceId长度
        if (sbDeviceId.length() > 0) {
            try {
                byte[] hash = getHashByString(sbDeviceId.toString());
                String sha1 = bytesToHex(hash);
                if (sha1 != null && sha1.length() > 0) {
                    //返回最终的DeviceId
                    return sha1;
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }

        //如果以上硬件标识数据均无法获得，
        //则DeviceId默认使用系统随机数，这样保证DeviceId不为空
        return UUID.randomUUID().toString().replace("-", "");
    }

    //需要获得READ_PHONE_STATE权限，>=6.0，默认返回null
    private String getIMEI(Context context) {
        try {
            TelephonyManager tm = (TelephonyManager)
                    context.getSystemService(Context.TELEPHONY_SERVICE);
            if (ActivityCompat.checkSelfPermission(context, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
                //    ActivityCompat#requestPermissions
                // here to request the missing permissions, and then overriding
                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                //                                          int[] grantResults)
                // to handle the case where the user grants the permission. See the documentation
                // for ActivityCompat#requestPermissions for more details.
                return "867931021606429";
            }
            return tm.getDeviceId();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return "";
    }

    /**
     * 获得设备的AndroidId
     *
     * @param context 上下文
     * @return 设备的AndroidId
     */
    private static String getAndroidId(Context context) {
        try {
            return Settings.Secure.getString(context.getContentResolver(),
                    Settings.Secure.ANDROID_ID);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return "";
    }

    /**
     * 获得设备序列号（如：WTK7N16923005607）, 个别设备无法获取
     *
     * @return 设备序列号
     */
    private static String getSERIAL() {
        try {
            return Build.SERIAL;
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return "";
    }

    /**
     * 获得设备硬件uuid
     * 使用硬件信息，计算出一个随机数
     *
     * @return 设备硬件uuid
     */
    private static String getDeviceUUID() {
        try {
            String dev = "3883756" +
                    Build.BOARD.length() % 10 +
                    Build.BRAND.length() % 10 +
                    Build.DEVICE.length() % 10 +
                    Build.HARDWARE.length() % 10 +
                    Build.ID.length() % 10 +
                    Build.MODEL.length() % 10 +
                    Build.PRODUCT.length() % 10 +
                    Build.SERIAL.length() % 10;
            return new UUID(dev.hashCode(),
                    Build.SERIAL.hashCode()).toString();
        } catch (Exception ex) {
            ex.printStackTrace();
            return "";
        }
    }

    /**
     * 取SHA1
     *
     * @param data 数据
     * @return 对应的hash值
     */
    private static byte[] getHashByString(String data) {
        try {
            MessageDigest messageDigest = MessageDigest.getInstance("SHA1");
            messageDigest.reset();
            messageDigest.update(data.getBytes("UTF-8"));
            return messageDigest.digest();
        } catch (Exception e) {
            return "".getBytes();
        }
    }

    /**
     * 转16进制字符串
     *
     * @param data 数据
     * @return 16进制字符串
     */
    private static String bytesToHex(byte[] data) {
        StringBuilder sb = new StringBuilder();
        String stmp;
        for (int n = 0; n < data.length; n++) {
            stmp = (Integer.toHexString(data[n] & 0xFF));
            if (stmp.length() == 1)
                sb.append("0");
            sb.append(stmp);
        }
        return sb.toString().toUpperCase(Locale.CHINA);
    }
}