微信支付：新增授权码查询OPENID接口

weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/Pay3Api.java

@@ -28,6 +28,7 @@ import com.foxinmy.weixin4j.model.WeixinPayAccount;
 import com.foxinmy.weixin4j.payment.PayURLConsts;
 import com.foxinmy.weixin4j.payment.PayUtil;
 import com.foxinmy.weixin4j.payment.mch.ApiResult;
+import com.foxinmy.weixin4j.payment.mch.AuthCodeOpenIdResult;
 import com.foxinmy.weixin4j.payment.mch.Order;
 import com.foxinmy.weixin4j.payment.mch.RefundRecord;
 import com.foxinmy.weixin4j.payment.mch.RefundResult;
@@ -430,6 +431,30 @@ public class Pay3Api {
 		return response.getAsXmlResult();
 	}
 
+	/**
+	 * 授权码查询OPENID接口
+	 * 
+	 * @param authCode
+	 *            扫码支付授权码，设备读取用户微信中的条码或者二维码信息
+	 * @return 查询结果
+	 * @see com.foxinmy.weixin4j.payment.mch.AuthCodeOpenIdResult
+	 * @see <a
+	 *      href="https://pay.weixin.qq.com/wiki/doc/api/micropay.php?chapter=9_13&index=9">授权码查询OPENID</a>
+	 * @throws WeixinException
+	 */
+	public AuthCodeOpenIdResult authCode2openId(String authCode)
+			throws WeixinException {
+		Map<String, String> map = baseMap(null);
+		map.put("auth_code", authCode);
+		String sign = PayUtil.paysignMd5(map, weixinAccount.getPaySignKey());
+		map.put("sign", sign);
+		String param = XmlStream.map2xml(map);
+		WeixinResponse response = weixinClient.post(
+				PayURLConsts.MCH_AUTHCODE_OPENID_URL, param);
+		return response.getAsObject(new TypeReference<AuthCodeOpenIdResult>() {
+		});
+	}
+
 	/**
 	 * V3接口请求基本数据
 	 * 

weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/PayURLConsts.java

@@ -102,9 +102,15 @@ public final class PayURLConsts {
 	 * 商户平台下native支付的url-模式1
 	 */
 	public static final String MCH_NATIVE_URL1 = "weixin://wxpay/bizpayurl?sign=%s&appid=%s&mch_id=%s&product_id=%s&time_stamp=%s&nonce_str=%s";
-	
+
 	/**
 	 * 商户平台下native支付的url-模式2
 	 */
 	public static final String MCH_NATIVE_URL2 = "weixin://wxpay/bizpayurl?sr=%s";
+
+	/**
+	 * 授权码查询OPENID接口
+	 */
+	public static final String MCH_AUTHCODE_OPENID_URL = MCH_BASE_URL
+			+ "/tools/authcodetoopenid";
 }

weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/WeixinPayProxy.java

@@ -17,6 +17,7 @@ import com.foxinmy.weixin4j.payment.coupon.CouponDetail;
 import com.foxinmy.weixin4j.payment.coupon.CouponResult;
 import com.foxinmy.weixin4j.payment.coupon.CouponStock;
 import com.foxinmy.weixin4j.payment.mch.ApiResult;
+import com.foxinmy.weixin4j.payment.mch.AuthCodeOpenIdResult;
 import com.foxinmy.weixin4j.payment.mch.MPPayment;
 import com.foxinmy.weixin4j.payment.mch.MPPaymentRecord;
 import com.foxinmy.weixin4j.payment.mch.MPPaymentResult;
@@ -505,4 +506,21 @@ public class WeixinPayProxy {
 		return cashApi.mchPaymentQuery(new FileInputStream(DEFAULT_CA_FILE),
 				outTradeNo);
 	}
+
+	/**
+	 * 授权码查询OPENID接口
+	 * 
+	 * @param authCode
+	 *            扫码支付授权码，设备读取用户微信中的条码或者二维码信息
+	 * @return 查询结果
+	 * @see com.foxinmy.weixin4j.api.CashApi
+	 * @see com.foxinmy.weixin4j.payment.mch.AuthCodeOpenIdResult
+	 * @see <a
+	 *      href="https://pay.weixin.qq.com/wiki/doc/api/micropay.php?chapter=9_13&index=9">授权码查询OPENID</a>
+	 * @throws WeixinException
+	 */
+	public AuthCodeOpenIdResult authCode2openId(String authCode)
+			throws WeixinException {
+		return pay3Api.authCode2openId(authCode);
+	}
 }

weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/AuthCodeOpenIdResult.java

@@ -0,0 +1,41 @@
+package com.foxinmy.weixin4j.payment.mch;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+
+import com.alibaba.fastjson.annotation.JSONField;
+
+/**
+ * authcode2openid
+ * 
+ * @className AuthCodeOpenIdResult
+ * @author jy
+ * @date 2015年7月23日
+ * @since JDK 1.7
+ * @see
+ */
+@XmlRootElement
+@XmlAccessorType(XmlAccessType.FIELD)
+public class AuthCodeOpenIdResult extends ApiResult {
+
+	private static final long serialVersionUID = 902743989722741814L;
+
+	/**
+	 * 用户在商户appid下的唯一标识
+	 */
+	@XmlElement(name = "openid")
+	@JSONField(name = "openid")
+	private String openId;
+
+	public String getOpenId() {
+		return openId;
+	}
+
+	@Override
+	public String toString() {
+		return "AuthCodeOpenIdResult [openId=" + openId + ", "
+				+ super.toString() + "]";
+	}
+}