支付宝安卓端调用说明

后台配置

生成密钥

下载相关链接中的RSA密钥工具
解压后点击 支付宝RAS密钥生成器SHAwithRSA2048_V1.0.bat弹出以下界面

点击生成RSA密钥，会在当前文件夹下生成三个密钥文件

rsa_private_key.pem

私钥：目前没有使用到

rsa_private_key_pkcs8.pem

pkcs8格式的私钥：用于生成签名，建议放在服务器端

rsa_public_key.pem

公钥：在支付宝后台中使用

配置公钥

登录支付宝后台-开发者中心-我的应用-XXX(需要调用支付的应用)-应用信息-开发配置-接口加签方式

点击设置应用公钥，之后将rsa_public_key.pem中的公钥配置到后台中即可

代码实现

支付宝接口的调用需要在线程中实现
调用代码

/**支付宝支付实现Begin**/public void payV2() {    /**     * 这里只是为了方便直接向商户展示支付宝的整个支付流程；所以Demo中加签过程直接放在客户端完成；     * 真实App里，privateKey等数据严禁放在客户端，加签过程务必要放在服务端完成；     * 防止商户私密数据泄露，造成不必要的资金损失，及面临各种安全风险；     *      * orderInfo的获取必须来自服务端；     */     Runnable payRunnable = new Runnable() {        @Override        public void run() {            // 通过http向服务器请求订单信息            orderInfo = gson.fromJson(HttpUtils.doPost(url), ZhiFuBean.class);            boolean rsa2 = (RSA2_PRIVATE.length() > 0);            // 拼接相关参数(应放在服务端完成)            Map<String, String> params = OrderInfoUtil2_0.buildOrderParamMap(APPID, rsa2, orderInfo.getOrderInfo());            String orderParam = OrderInfoUtil2_0.buildOrderParam(params);            String sign = OrderInfoUtil2_0.getSign(params, RSA2_PRIVATE, rsa2);            String orderRequest = orderParam + "&" + sign;            // 调用充值方法            PayTask alipay = new PayTask(a);            Map<String, String> result = alipay.payV2(orderRequest, true);            Log.i("msp", result.toString());            Message msg = new Message();            msg.what = SDK_PAY_FLAG;            msg.obj = result;            mHandler.sendMessage(msg);        }     };     Thread payThread = new Thread(payRunnable);     // 启动线程     payThread.start();}/**支付宝支付支付实现END**/

参数说明

/**支付宝支付变量Begin**/// 应用ID(在支付宝后台中可以找到)public String APPID = Constants.APPID;// rsa_private_key_pkcs8.pem 密钥(必须放在服务端)public String RSA2_PRIVATE = Constants.RSA2_PRIVATE;// 常量，为1private static final int SDK_PAY_FLAG = Constants.SDK_PAY_FLAG;/**支付宝支付变量END**/

ZhiFuBean.class

public class ZhiFuBean extends RequestBean {    private OrderInfo orderInfo;    public OrderInfo getOrderInfo() {        return orderInfo;    }    public void setOrderInfo(OrderInfo orderInfo) {        this.orderInfo = orderInfo;    }}

OrderInfo.class

public class OrderInfo {    private String app_id; // 应用ID    private String method; // 接口名称    private String charset; // 字符集    private String sign_type; // 签名算法    private String timestamp; // 时间戳    private String version; // 版本    private String notify_url; // 回调地址    private BizContent biz_content; // 请求参数集合    public String getApp_id() {        return app_id;    }    public void setApp_id(String app_id) {        this.app_id = app_id;    }    public String getMethod() {        return method;    }    public void setMethod(String method) {        this.method = method;    }    public String getCharset() {        return charset;    }    public void setCharset(String charset) {        this.charset = charset;    }    public String getSign_type() {        return sign_type;    }    public void setSign_type(String sign_type) {        this.sign_type = sign_type;    }    public String getTimestamp() {        return timestamp;    }    public void setTimestamp(String timestamp) {        this.timestamp = timestamp;    }    public String getVersion() {        return version;    }    public void setVersion(String version) {        this.version = version;    }    public String getNotify_url() {        return notify_url;    }    public void setNotify_url(String notify_url) {        this.notify_url = notify_url;    }    public BizContent getBiz_content() {        return biz_content;    }    public void setBiz_content(BizContent biz_content) {        this.biz_content = biz_content;    }}

OrderInfoUtil2_0.buildOrderParamMap()

/** * 构造支付订单参数列表 * @return */public static Map<String, String> buildOrderParamMap(String app_id, boolean rsa2,OrderInfo orderInfo) {    Map<String, String> keyValues = new HashMap<String, String>();    keyValues.put("app_id", orderInfo.getApp_id());    keyValues.put("biz_content", gson.toJson(orderInfo.getBiz_content()).toString());    keyValues.put("charset", orderInfo.getCharset());    keyValues.put("method", orderInfo.getMethod());    keyValues.put("sign_type", orderInfo.getSign_type());    keyValues.put("timestamp", orderInfo.getTimestamp());    keyValues.put("version", orderInfo.getVersion());    keyValues.put("notify_url", orderInfo.getNotify_url());    return keyValues;}

OrderInfoUtil2_0.buildOrderParam()

/** * 构造支付订单参数信息 *  * @param map * 支付订单参数 * @return */public static String buildOrderParam(Map<String, String> map) {    List<String> keys = new ArrayList<String>(map.keySet());    StringBuilder sb = new StringBuilder();    for (int i = 0; i < keys.size() - 1; i++) {        String key = keys.get(i);        String value = map.get(key);        sb.append(buildKeyValue(key, value, true));        sb.append("&");    }    String tailKey = keys.get(keys.size() - 1);    String tailValue = map.get(tailKey);    sb.append(buildKeyValue(tailKey, tailValue, true));    return sb.toString();}

OrderInfoUtil2_0.getSign()

/** * 对支付参数信息进行签名 *  * @param map *            待签名授权信息 *  * @return */public static String getSign(Map<String, String> map, String rsaKey, boolean rsa2) {    List<String> keys = new ArrayList<String>(map.keySet());    Collections.sort(keys);    StringBuilder authInfo = new StringBuilder();    for (int i = 0; i < keys.size() - 1; i++) {        String key = keys.get(i);        String value = map.get(key);        authInfo.append(buildKeyValue(key, value, false));        authInfo.append("&");    }    String tailKey = keys.get(keys.size() - 1);    String tailValue = map.get(tailKey);    authInfo.append(buildKeyValue(tailKey, tailValue, false));    String oriSign = SignUtils.sign(authInfo.toString(), rsaKey, rsa2);    String encodedSign = "";    try {        encodedSign = URLEncoder.encode(oriSign, "UTF-8");    } catch (UnsupportedEncodingException e) {        e.printStackTrace();    }    return "sign=" + encodedSign;}

AndroidManifest.xml需要添加

<activity    android:name="com.alipay.sdk.app.H5PayActivity"    android:configChanges="orientation|keyboardHidden|navigation"    android:exported="false"    android:screenOrientation="behind" ></activity><activity    android:name="com.alipay.sdk.auth.AuthActivity"    android:configChanges="orientation|keyboardHidden|navigation"    android:exported="false"    android:screenOrientation="behind" > </activity>

<uses-permission android:name="android.permission.INTERNET" /><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /><uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /><uses-permission android:name="android.permission.READ_PHONE_STATE" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

相关链接

开发者文档
支付宝后台
RSA密钥工具