添加读取支付回调内容接口

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpService.java

@@ -577,4 +577,12 @@ public interface WxMpService {
      * @param outTradeNo
      */
     WxMpPayResult getJSSDKPayResult(String transactionId, String outTradeNo);
+    
+    /**
+     * 读取支付结果通知
+     * 详见http://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_7
+     * @param xmlData
+     * @return
+     */
+    WxMpPayCallback getJSSDKCallbackData(String xmlData);
 }

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpServiceImpl.java

@@ -747,6 +747,19 @@ public class WxMpServiceImpl implements WxMpService {
       }
       return new WxMpPayResult();
   }
+
+  @Override
+  public WxMpPayCallback getJSSDKCallbackData(String xmlData) {
+    try {
+      XStream xstream = XStreamInitializer.getInstance();
+      xstream.alias("xml", WxMpPayResult.class);
+      WxMpPayCallback wxMpCallback = (WxMpPayCallback) xstream.fromXML(xmlData);
+      return wxMpCallback;
+    } catch (Exception e){
+      e.printStackTrace();
+    }
+    return new WxMpPayCallback();
+  }
   
   
 }