Fix bug - public msg_id from RequestException

Author: Javen

src/cn/jpush/api/common/APIRequestException.java

@@ -21,6 +21,14 @@ public int getStatus() {
         return this.responseWrapper.responseCode;
     }
 
+    public long getMsgId() {
+        ErrorObject eo = getErrorObject();
+        if (null != eo) {
+            return eo.msg_id;
+        }
+        return 0;
+    }
+    
     public int getErrorCode() {
         ErrorObject eo = getErrorObject();
         if (null != eo) {

src/cn/jpush/api/common/ResponseWrapper.java

@@ -50,6 +50,7 @@ public String toString() {
 	}
 
 	public class ErrorObject {
+	    public long msg_id;
 	    public ErrorEntity error;
 	}
 

src/cn/jpush/api/examples/PushExample.java

@@ -52,6 +52,7 @@ public static void testSendPush() {
             LOG.info("HTTP Status: " + e.getStatus());
             LOG.info("Error Code: " + e.getErrorCode());
             LOG.info("Error Message: " + e.getErrorMessage());
+            LOG.info("Msg ID: " + e.getMsgId());
         }
 	}