diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/WxMpPayServiceImpl.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/WxMpPayServiceImpl.java
index 475f54065..dcb1e89f4 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/WxMpPayServiceImpl.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/WxMpPayServiceImpl.java
@@ -28,7 +28,6 @@ import me.chanjar.weixin.mp.api.WxMpService;
 import me.chanjar.weixin.mp.bean.pay.WxMpPayCallback;
 import me.chanjar.weixin.mp.bean.pay.WxMpPayRefundResult;
 import me.chanjar.weixin.mp.bean.pay.WxMpPayResult;
-import me.chanjar.weixin.mp.bean.pay.WxMpPrepayIdResult;
 import me.chanjar.weixin.mp.bean.pay.WxRedpackResult;
 import me.chanjar.weixin.mp.bean.pay.WxSendRedpackRequest;
 import me.chanjar.weixin.mp.bean.pay.WxUnifiedOrderRequest;
@@ -287,7 +286,7 @@ public class WxMpPayServiceImpl implements WxMpPayService {
 
     if (!TRADE_TYPES.contains(request.getTradeType())) {
       throw new IllegalArgumentException(
-"trade_type目前必须为" + TRADE_TYPES + "其中之一");
+          "trade_type目前必须为" + TRADE_TYPES + "其中之一");
 
     }
 
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/WxMpXmlMessage.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/WxMpXmlMessage.java
index c02406488..460e7ce6f 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/WxMpXmlMessage.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/WxMpXmlMessage.java
@@ -1,21 +1,23 @@
 package me.chanjar.weixin.mp.bean;
 
-import com.thoughtworks.xstream.annotations.XStreamAlias;
-import com.thoughtworks.xstream.annotations.XStreamConverter;
-import me.chanjar.weixin.common.util.xml.XStreamCDataConverter;
-import me.chanjar.weixin.mp.api.WxMpConfigStorage;
-import me.chanjar.weixin.mp.util.crypto.WxMpCryptUtil;
-import me.chanjar.weixin.mp.util.xml.XStreamTransformer;
-import org.apache.commons.io.IOUtils;
-import org.apache.commons.lang3.builder.ToStringBuilder;
-import org.apache.commons.lang3.builder.ToStringStyle;
-
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringStyle;
+
+import com.thoughtworks.xstream.annotations.XStreamAlias;
+import com.thoughtworks.xstream.annotations.XStreamConverter;
+
+import me.chanjar.weixin.common.util.xml.XStreamCDataConverter;
+import me.chanjar.weixin.mp.api.WxMpConfigStorage;
+import me.chanjar.weixin.mp.util.crypto.WxMpCryptUtil;
+import me.chanjar.weixin.mp.util.xml.XStreamTransformer;
+
 /**
  * <pre>
  * 微信推送过来的消息，也是同步回复给用户的消息，xml格式
@@ -239,7 +241,7 @@ public class WxMpXmlMessage implements Serializable {
   private String msg;
 
   public String getStoreUniqId() {
-    return storeUniqId;
+    return this.storeUniqId;
   }
 
   public void setStoreUniqId(String storeUniqId) {
@@ -247,7 +249,7 @@ public class WxMpXmlMessage implements Serializable {
   }
 
   public String getPoiId() {
-    return poiId;
+    return this.poiId;
   }
 
   public void setPoiId(String poiId) {
@@ -255,7 +257,7 @@ public class WxMpXmlMessage implements Serializable {
   }
 
   public String getResult() {
-    return result;
+    return this.result;
   }
 
   public void setResult(String result) {
@@ -263,7 +265,7 @@ public class WxMpXmlMessage implements Serializable {
   }
 
   public String getMsg() {
-    return msg;
+    return this.msg;
   }
 
   public void setMsg(String msg) {
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/tag/WxTagListUser.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/tag/WxTagListUser.java
index 0ba48edce..b07314bac 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/tag/WxTagListUser.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/tag/WxTagListUser.java
@@ -1,11 +1,13 @@
 package me.chanjar.weixin.mp.bean.tag;
 
-import com.google.gson.annotations.SerializedName;
-import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
+import java.util.List;
+
 import org.apache.commons.lang3.builder.ToStringBuilder;
 import org.apache.commons.lang3.builder.ToStringStyle;
 
-import java.util.List;
+import com.google.gson.annotations.SerializedName;
+
+import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
 
 /**
  * 获取标签下粉丝列表的结果对象
@@ -46,7 +48,7 @@ public class WxTagListUser {
   private String nextOpenid;
 
   public Integer getCount() {
-    return count;
+    return this.count;
   }
 
   public void setCount(Integer count) {
@@ -54,7 +56,7 @@ public class WxTagListUser {
   }
 
   public WxTagListUserData getData() {
-    return data;
+    return this.data;
   }
 
   public void setData(WxTagListUserData data) {
@@ -62,7 +64,7 @@ public class WxTagListUser {
   }
 
   public String getNextOpenid() {
-    return nextOpenid;
+    return this.nextOpenid;
   }
 
   public void setNextOpenid(String nextOpenid) {
@@ -82,7 +84,7 @@ public class WxTagListUser {
     private List<String> openidList;
 
     public List<String> getOpenidList() {
-      return openidList;
+      return this.openidList;
     }
 
     public void setOpenidList(List<String> openidList) {