diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/AbstractAction.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/AbstractAction.java
index 373e76b2..c3f0bec7 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/AbstractAction.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/AbstractAction.java
@@ -20,8 +20,7 @@ import com.foxinmy.weixin4j.xml.XStream;
  * @see com.foxinmy.weixin4j.action.WeixinAction
  */
 @SuppressWarnings("unchecked")
-public abstract class AbstractAction<M extends BaseMsg> implements
-		WeixinAction {
+public abstract class AbstractAction<M extends BaseMsg> implements WeixinAction {
 
 	public abstract ResponseMessage execute(M inMessage);
 
@@ -29,11 +28,7 @@ public abstract class AbstractAction<M extends BaseMsg> implements
 	public ResponseMessage execute(String msg) throws DocumentException {
 		BaseMsg message = MessageUtil.xml2msg(msg);
 		if (message == null) {
-			Class<M> messageClass = getGenericType();
-			XStream xstream = XStream.get();
-			xstream.processAnnotations(messageClass);
-			xstream.alias("xml", messageClass);
-			return execute(xstream.fromXML(msg, messageClass));
+			return execute(XStream.get(msg, getGenericType()));
 		}
 		return execute((M) message);
 	}
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/README.md b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/README.md
index f560b504..1cb9faa2 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/README.md
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/action/README.md
@@ -1,3 +1,3 @@
 消息处理接口,与weixin4j-*-server配合使用
 
-如果只使用API包,则可以不关注
\ No newline at end of file
+如果单纯只使用API包,则可以不关注
\ No newline at end of file
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/PayException.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/PayException.java
index bfd492a1..a05ea1b1 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/PayException.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/PayException.java
@@ -2,39 +2,21 @@ package com.foxinmy.weixin4j.exception;
 
 /**
  * 调用微信支付抛出的异常
+ * 
  * @className PayException
  * @author jy
  * @date 2014年10月28日
  * @since JDK 1.7
  * @see
  */
-public class PayException extends Exception {
-
+public class PayException extends WeixinException {
 	private static final long serialVersionUID = 7148145661883468514L;
 
-	private String errorCode;
-	private String errorMsg;
+	public PayException(String errorMsg) {
+		super(errorMsg);
+	}
 
 	public PayException(String errorCode, String errorMsg) {
-		this.errorCode = errorCode;
-		this.errorMsg = errorMsg;
-	}
-
-	public PayException(String errorMsg) {
-		this.errorCode = "-1";
-		this.errorMsg = errorMsg;
-	}
-
-	public String getErrorCode() {
-		return this.errorCode;
-	}
-
-	public String getErrorMsg() {
-		return this.errorMsg;
-	}
-
-	@Override
-	public String getMessage() {
-		return String.format("%s,%s", getErrorMsg(), getErrorCode());
+		super(errorCode, errorMsg);
 	}
 }
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/WeixinException.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/WeixinException.java
index e5172c5f..6d936d3c 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/WeixinException.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/exception/WeixinException.java
@@ -22,7 +22,7 @@ public class WeixinException extends Exception {
 	}
 
 	public WeixinException(String errorMsg) {
-		this.errorCode = "";
+		this.errorCode = "-1";
 		this.errorMsg = errorMsg;
 	}
 
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Consts.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Consts.java
index 9e0901ce..19563cc4 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Consts.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Consts.java
@@ -1,5 +1,12 @@
 package com.foxinmy.weixin4j.model;
-
+/**
+ * 常量类
+ * @className Consts
+ * @author jy
+ * @date 2014年12月3日
+ * @since JDK 1.7
+ * @see
+ */
 public final class Consts {
 	public static final String SUCCESS = "SUCCESS";
 	public static final String FAIL = "FAIL";
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Token.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Token.java
index ecefbe07..7c785fd4 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Token.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/Token.java
@@ -14,7 +14,8 @@ import com.thoughtworks.xstream.annotations.XStreamAlias;
  * @date 2014年4月5日
  * @since JDK 1.7
  * @see <a
- *      href="http://mp.weixin.qq.com/wiki/index.php?title=%E8%8E%B7%E5%8F%96access_token">获取token</a>
+ *      href="http://mp.weixin.qq.com/wiki/index.php?title=%E8%8E%B7%E5%8F%96access_token">微信公众平台获取token</a>
+ * @see <a href="http://qydev.weixin.qq.com/wiki/index.php?title=%E4%B8%BB%E5%8A%A8%E8%B0%83%E7%94%A8">微信企业号的主动模式</a>
  */
 @XStreamAlias("app-token")
 public class Token implements Serializable {
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinAccount.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinAccount.java
index e8a749a4..4060288d 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinAccount.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinAccount.java
@@ -103,7 +103,7 @@ public abstract class WeixinAccount implements Serializable {
 
 	@Override
 	public String toString() {
-		return "WeixinAccount [id=" + id + ", secret=" + secret + ", token="
-				+ token + ", encodingAesKey=" + encodingAesKey + "]";
+		return "id=" + id + ", secret=" + secret + ", token=" + token
+				+ ", encodingAesKey=" + encodingAesKey;
 	}
 }
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinMpAccount.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinMpAccount.java
index 3d26f1d3..4745eaa9 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinMpAccount.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinMpAccount.java
@@ -171,8 +171,6 @@ public class WeixinMpAccount extends WeixinAccount {
 				+ partnerKey + ", mchId=" + mchId + ", deviceInfo="
 				+ deviceInfo + ", version=" + version + ", isAlive=" + isAlive
 				+ ", isService=" + isService + ", isSubscribe=" + isSubscribe
-				+ ", getId()=" + getId() + ", getSecret()=" + getSecret()
-				+ ", getToken()=" + getToken() + ", getEncodingAesKey()="
-				+ getEncodingAesKey() + "]";
+				+ ", " + super.toString() + "]";
 	}
 }
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinQyAccount.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinQyAccount.java
index 9192ff25..504d1cd2 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinQyAccount.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/model/WeixinQyAccount.java
@@ -26,9 +26,6 @@ public class WeixinQyAccount extends WeixinAccount {
 
 	@Override
 	public String toString() {
-		return "WeixinQyAccount [getTokenUrl()=" + getTokenUrl() + ", getId()="
-				+ getId() + ", getSecret()=" + getSecret() + ", getToken()="
-				+ getToken() + ", getEncodingAesKey()=" + getEncodingAesKey()
-				+ "]";
+		return "WeixinQyAccount [" + super.toString() + "]";
 	}
 }
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/msg/event/LocationEventMessage.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/msg/event/LocationEventMessage.java
index ce02a385..440337ad 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/msg/event/LocationEventMessage.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/msg/event/LocationEventMessage.java
@@ -44,17 +44,8 @@ public class LocationEventMessage extends EventMessage {
 
 	@Override
 	public String toString() {
-		StringBuilder sb = new StringBuilder();
-		sb.append("[LocationEventMessage ,toUserName=").append(
-				super.getToUserName());
-		sb.append(" ,fromUserName=").append(super.getFromUserName());
-		sb.append(" ,msgType=").append(super.getMsgType());
-		sb.append(" ,eventType=").append(super.getEventType().name());
-		sb.append(" ,longitude=").append(longitude);
-		sb.append(" ,latitude=").append(latitude);
-		sb.append(" ,precision=").append(precision);
-		sb.append(" ,createTime=").append(super.getCreateTime());
-		sb.append(" ,msgId=").append(super.getMsgId()).append("]");
-		return sb.toString();
+		return "LocationEventMessage [latitude=" + latitude + ", longitude="
+				+ longitude + ", precision=" + precision + ", "
+				+ super.toString() + "]";
 	}
 }
diff --git a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/PayApi.java b/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/PayApi.java
index 16c239c3..66ba5c09 100644
--- a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/PayApi.java
+++ b/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());
 	}
 
 	/**
diff --git a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/TmplApi.java b/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/TmplApi.java
index efea9308..8f1037f1 100644
--- a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/api/TmplApi.java
+++ b/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();
 	}
diff --git a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/PayUtil.java b/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/PayUtil.java
index c7ba5041..7a900a56 100644
--- a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/PayUtil.java
+++ b/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");
 	}
 
 	/**
diff --git a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/RefundConverter.java b/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/RefundConverter.java
index 0630f117..ae0f8674 100644
--- a/weixin4j-mp/weixin4j-mp-api/src/main/java/com/foxinmy/weixin4j/mp/payment/RefundConverter.java
+++ b/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;
 		}
 	}
-}
+}
\ No newline at end of file