优化了代码

weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/PayApi.java

@@ -582,7 +582,7 @@ public class PayApi extends MpApi {
 			String param = map2xml(map);
 			response = request.post(refundquery_uri, param);
 		}
-		return new RefundConverter().fromXML(response.getAsString());
+		return RefundConverter.fromXML(response.getAsString());
 	}
 
 	/**

weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/TmplApi.java

@@ -28,7 +28,7 @@ public class TmplApi extends MpApi {
 	/**
 	 * 发送模板消息
 	 * 
-	 * @param message
+	 * @param message 消息对象
 	 * @return 发送结果
 	 * @throws WeixinException
 	 * @see <a
@@ -40,9 +40,8 @@ public class TmplApi extends MpApi {
 			throws WeixinException {
 		Token token = tokenHolder.getToken();
 		String template_send_uri = getRequestUri("template_send_uri");
-		String para = JSON.toJSONString(tplMessage);
 		Response response = request.post(
-				String.format(template_send_uri, token.getAccessToken()), para);
+				String.format(template_send_uri, token.getAccessToken()), JSON.toJSONString(tplMessage));
 
 		return response.getAsJsonResult();
 	}

weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/PayUtil.java

@@ -56,7 +56,7 @@ public class PayUtil {
 			return createPayJsRequestJsonV3((PayPackageV3) payPackage,
 					weixinAccount);
 		}
-		throw new PayException("-1", "unknown pay");
+		throw new PayException("unknown pay");
 	}
 
 	/**

weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/RefundConverter.java

@@ -31,25 +31,26 @@ import com.thoughtworks.xstream.mapper.Mapper;
  */
 public class RefundConverter {
 	private final static XStream xStream = XStream.get();
-	private final Mapper mapper;
-	private final ReflectionProvider reflectionProvider;
-
-	public RefundConverter() {
+	private final static Mapper mapper;
+	private final static ReflectionProvider reflectionProvider;
+	private final static Pattern pattern = Pattern.compile("(_\\d)$");
+	static {
 		xStream.processAnnotations(Refund.class);
-		xStream.registerConverter(new RefundConverter.$());
-		this.mapper = xStream.getMapper();
-		this.reflectionProvider = xStream.getReflectionProvider();
+		xStream.processAnnotations(RefundDetail.class);
+		xStream.registerConverter(new $());
+		mapper = xStream.getMapper();
+		reflectionProvider = xStream.getReflectionProvider();
 	}
 
-	public String toXML(Refund refund) {
+	public static String toXML(Refund refund) {
 		return xStream.toXML(refund);
 	}
 
-	public Refund fromXML(String xml) {
+	public static Refund fromXML(String xml) {
 		return xStream.fromXML(xml, Refund.class);
 	}
 
-	private class $ implements Converter {
+	private static class $ implements Converter {
 		@Override
 		public boolean canConvert(@SuppressWarnings("rawtypes") Class clazz) {
 			return clazz.equals(Refund.class);
@@ -67,7 +68,6 @@ public class RefundConverter {
 		public Object unmarshal(HierarchicalStreamReader reader,
 				UnmarshallingContext context) {
 			Refund refund = new Refund();
-			Pattern pattern = Pattern.compile("(_\\d)$");
 			Matcher matcher = null;
 			Map<String, Map<String, String>> outMap = new HashMap<String, Map<String, String>>();
 			while (reader.hasMoreChildren()) {
@@ -108,9 +108,8 @@ public class RefundConverter {
 				detailXml.append("</").append(detailCanonicalName).append(">");
 			}
 			detailXml.append("</list>");
-			xStream.processAnnotations(RefundDetail.class);
 			refund.setDetails(xStream.fromXML(detailXml.toString(), List.class));
 			return refund;
 		}
 	}
-}
+}