android 回调 微信授权 微信授权api

/**
 * 第一步、获取access_token
 * APPID和APPSECRET可以去微信公众平台---“开发----基本配置”中查找。
 */
public static String getAccessToken() {
    String access_token = cacheUtil.getString(ACCESS_TOKEN);
    if (StringUtils.isBlank(access_token)) {
        String grant_type = "client_credential";//获取access_token填写client_credential
        //这个url链接地址和参数皆不能变
        String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=" + grant_type + "&appid=" + appId + "&secret=" + appSecret;
        try {
            URL urlGet = new URL(url);
            HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
            http.setRequestMethod("GET"); // 必须是get方式请求
            http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            http.setDoOutput(true);
            http.setDoInput(true);
            System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒
            System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒
            http.connect();
            InputStream is = http.getInputStream();
            int size = is.available();
            byte[] jsonBytes = new byte[size];
            is.read(jsonBytes);
            String message = new String(jsonBytes, "UTF-8");
            JSONObject demoJson = JSONObject.fromObject(message);
            logger.info("=getAccessToken==JSON字符串=" + demoJson);
            access_token = demoJson.getString("access_token");
            is.close();
        } catch (Exception e) {
            logger.error("getAccessToken", e);
        }
        cacheUtil.setString(ACCESS_TOKEN, access_token, EXPIRE_TIME);
    }
    logger.info("=getAccessToken=" + access_token);
    return access_token;

}

/**
 * 第二步、获取jsapi_ticket
 */
public static String getTicket(String access_token) {
    String ticket = cacheUtil.getString(JSAPI_TICKET);
    if (StringUtils.isBlank(ticket)) {
        String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=" + access_token + "&type=jsapi";//这个url链接和参数不能变
        try {
            URL urlGet = new URL(url);
            HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
            http.setRequestMethod("GET"); // 必须是get方式请求
            http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            http.setDoOutput(true);
            http.setDoInput(true);
            System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒
            System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒
            http.connect();
            InputStream is = http.getInputStream();
            int size = is.available();
            byte[] jsonBytes = new byte[size];
            is.read(jsonBytes);
            String message = new String(jsonBytes, "UTF-8");
            JSONObject demoJson = JSONObject.fromObject(message);
            logger.info("==getTicket==JSON字符串=" + demoJson);
            ticket = demoJson.getString("ticket");
            is.close();
        } catch (Exception e) {
            logger.error("=getTicket=" + e);
        }
        cacheUtil.setString(JSAPI_TICKET, ticket, EXPIRE_TIME);
    }
    return ticket;
}

/**
 * sha1的加密算法
 * 拿到了jsapi_ticket之后就要参数名排序和拼接字符串，并加密
 */
public static String SHA1(String decript) {
    try {
        MessageDigest digest = java.security.MessageDigest.getInstance("SHA-1");
        digest.update(decript.getBytes());
        byte messageDigest[] = digest.digest();
        // Create Hex String
        StringBuffer hexString = new StringBuffer();
        // 字节数组转换为 十六进制 数
        for (int i = 0; i < messageDigest.length; i++) {
            String shaHex = Integer.toHexString(messageDigest[i] & 0xFF);
            if (shaHex.length() < 2) {
                hexString.append(0);
            }
            hexString.append(shaHex);
        }
        return hexString.toString();
    } catch (NoSuchAlgorithmException e) {
        logger.error("=SHA1=", e);
    }
    return "";
}

获取微信API的sign

//1、获取AccessToken

//2、获取Ticket

//3、时间戳和随机字符串
String noncestr = UUID.randomUUID().toString().replace("-", "").substring(0, 16);//随机字符串
String timestamp = String.valueOf(System.currentTimeMillis() / 1000);//时间戳

//4、将参数排序并拼接字符串
String str = "jsapi_ticket=" + jsapi_ticket + "&noncestr=" + noncestr + "×tamp=" + timestamp + "&url=" + url;

//5、将字符串进行sha1加密
String signature = SHA1(str);

//6.javascript里去初始化微信API接口

引入 //res.wx.qq.com/open/js/jweixin-1.2.0.js

wx.config({
    debug: false,
    appId: data.appId, //公众号的唯一标识
    timestamp: data.timestamp, //生成签名的时间戳
    nonceStr: data.noncestr, //生成签名的随机串
    signature: data.signature, //签名
    jsApiList: [ //需要使用的JS接口列表
        'onMenuShareTimeline', //分享到朋友圈
        'onMenuShareAppMessage', //分享给朋友
        'getLocation',
        'chooseImage',
        'uploadImage',
        'scanQRCode'
    ]
});

获取微信定位

wx.getLocation({
      type: 'wgs84',
      success: function (res) {
        latitude = res.latitude; // 纬度，浮点数，范围为90 ~ -90
        longitude = res.longitude; // 经度，浮点数，范围为180 ~ -180。
        var speed = res.speed; // 速度，以米/每秒计
        var accuracy = res.accuracy; // 位置精度
    }
}

/*分享到朋友圈*/
wx.onMenuShareTimeline({
    title: data.name, // 分享标题
    desc: data.message, // 分享描述
    link: data.link, // 分享链接
    imgUrl: data.imgUrl, // 分享图标
    success: function() {
        // 用户确认分享后执行的回调函数
        alert("您已分享");
    },
    cancel: function() {
        // 用户取消分享后执行的回调函数
        alert('您已取消分享');
    }
});

/*分享给朋友*/
wx.onMenuShareAppMessage({
    title: data.name, // 分享标题
    desc: data.message, // 分享描述
    link: data.link, // 分享链接
    imgUrl: data.imgUrl, // 分享图标
    type: 'link', // 分享类型,music、video或link，不填默认为link
    dataUrl: '', // 如果type是music或video，则要提供数据链接，默认为空
    success: function() {
        // 用户确认分享后执行的回调函数
        alert("您已分享");
    },
    cancel: function() {
        // 用户取消分享后执行的回调函数
        alert('您已取消分享');
    }
});
wx.error(function(res) {
    alert(res.errMsg);
});