diff --git a/README.md b/README.md
index 678dc10f4..30d2fbeb3 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
-weixin-tools
+weixin-java-tools
 ===========
 
 微信java开发工具，本项目提供了两个主要特性：微信消息路由器、微信Java API
 
 ## 微信消息路由器
 
-你可以使用``WxMessageRouter``来对微信推送过来的消息、事件进行路由，交给特定的``WxMessageHandler``处理。
+你可以使用``WxMessageRouter``来对微信推送过来的消息、事件进行路由，交给的``WxMessageHandler``处理。
 
 使用方法：
 
@@ -13,32 +13,269 @@ weixin-tools
 WxMessageRouter router = new WxMessageRouter();
 router
   .rule()
-      .msgType("MSG_TYPE").event("EVENT").eventKey("EVENT_KEY").content("CONTENT")
-      .interceptor(interceptor, ...).handler(handler, ...)
+      .msgType("MSG_TYPE")
+      .event("EVENT")
+      .eventKey("EVENT_KEY")
+      .content("CONTENT")
+      .interceptor(interceptor).handler(handler)
   .end()
   .rule()
-      // 另外一个匹配规则
+      .msgType("MSG_TYPE")
+      .handler(handler)
   .end()
 ;
 
 // 将WxXmlMessage交给消息路由器
+WxXmlMessage message = WxXmlMessage.fromXml(xml);
 router.route(message);
 ```
 
 1. 开发人员需实现自己的``WxMessageHandler``和``WxMessageInterceptor``
 1. 配置路由规则时要按照从细到粗的原则，否则可能消息可能会被提前处理
-2. 默认情况下消息只会被处理一次，除非使用 ``WxMessageRouter#Rule#next()``
-3. 规则的结束必须用``WxMessageRouter#Rule#end()``或者``WxMessageRouter#Rule#next()``，否则不会生效
+2. 默认情况下消息只会被处理一次，除非使用 ``Rule.next()``
+3. 规则的结束必须用``Rule.end()``或者``Rule.next()``，否则不会生效
+4. 具体使用可以看源代码中的``WxMessageRouterTest``单元测试，或者查看Javadoc
 
 ## 微信Java API
 
-使用``WxService``可以调用微信API。目前实现了以下功能，其余功能以后陆续补充：
+使用``WxService``可以调用微信API。目前实现的功能有：
 
-1. 发送客服消息
-1. 创建自定义菜单
-1. 删除自定义菜单
-1. 查询自定义菜单
-1. 刷新access_token
+### 构造WxService
+
+``WxService``依赖于``WxConfigStorage``，``WxConfigStorage``是微信客户端配置所存储的地方，本工具提供了默认的``WxInMemoryConfigStorage``，这是一个存储在内存中的实现，生产环境中需要开发人员提供自己的实现。
+
+```java
+WxConfigStorage config = new WxInMemoryConfigStorage();
+config.setAppId(...);
+config.setSecret(...);
+config.setToken(...);
+WxServiceImpl wxService = new WxServiceImpl();
+wxService.setWxConfigStorage(config);
+```
+
+### 验证消息
+
+```java
+if(!wxService.checkSignature(timestamp, nonce, signature)) {
+   // 验证失败
+}
+```
+
+### 刷新access_token
+
+```java
+wxService.accessTokenRefresh();
+```
+
+刷新后的accessToken存在WxConfigStorage中。
+
+### 多媒体文件
+
+#### 上传多媒体文件
+```java
+InputStream inputStream = ...;
+File file = ...;
+WxMediaUploadResult res = wxService.mediaUpload(mediaType, fileType, inputStream);
+// 或者
+res = wxService.mediaUpload(mediaType, file);
+res.getType();
+res.getCreated_at();
+res.getMedia_id();
+res.getThumb_media_id();
+```
+
+#### 下载多媒体文件
+```java
+// 获得一个在系统临时目录的一个文件
+File file = wxService.mediaDownload(media_id);
+```
+
+### 分组管理
+
+#### 创建分组
+```java
+WxGroup res = wxService.groupCreate("测试分组1");
+```
+
+#### 获得分组列表
+```java
+List<WxGroup> groupList = wxService.groupGet();
+```
+
+#### 更新分组名
+```java
+WxGroup g = new WxGroup();
+g.setId(...);
+g.setName(...);
+wxService.groupUpdate(group);
+```
+
+### 用户管理
+
+#### 更新用户备注名
+```java
+wxService.userUpdateRemark(openid, "测试备注名");
+```
+
+#### 获得用户信息
+```java
+String lang = "zh_CN"; //语言
+WxUser user = wxService.userInfo(openid, lang);
+```
+
+#### 获得用户列表
+```java
+WxUserList wxUserList = wxService.userList(next_openid);
+```
+
+#### 查询用户所在分组
+```java
+long groupid = wxService.userGetGroup(openid);
+```
+
+#### 将用户移到分组
+```java
+wxService.userUpdateGroup(openid, to_groupid);
+```
+
+### 发送客服消息
+
+```java
+WxCustomMessage message = new WxCustomMessage();
+// 设置消息的内容等信息
+wxService.customMessageSend(message);
+```
+
+### 群发消息
+
+下面用用户列表群发（``WxMassOpenIdsMessage``）做例子，如果要使用分组群发，则使用``WxMassGroupMessage``即可。
+
+#### 文本消息
+```java
+WxMassOpenIdsMessage massMessage = new WxMassOpenIdsMessage();
+massMessage.setMsgtype(WxConsts.MASS_MSG_TEXT);
+massMessage.setContent("消息内容");
+massMessage.getTouser().add(openid);
+
+WxMassSendResult massResult = wxService.massOpenIdsMessageSend(massMessage);
+```
+
+#### 视频消息
+```java
+WxMediaUploadResult uploadMediaRes = wxService.mediaUpload(WxConsts.MEDIA_VIDEO, WxConsts.FILE_MP4, inputStream);
+
+// 把视频变成可被群发的媒体
+WxMassVideo video = new WxMassVideo();
+video.setTitle("测试标题");
+video.setDescription("测试描述");
+video.setMedia_id(uploadMediaRes.getMedia_id());
+WxMassUploadResult uploadResult = wxService.massVideoUpload(video);
+
+WxMassOpenIdsMessage massMessage = new WxMassOpenIdsMessage();
+massMessage.setMsgtype(WxConsts.MASS_MSG_VIDEO);
+massMessage.setMedia_id(uploadResult.getMedia_id());
+massMessage.getTouser().add(openid);
+
+WxMassSendResult massResult = wxService.massOpenIdsMessageSend(massMessage);
+```
+
+#### 图片消息
+```java
+WxMediaUploadResult uploadMediaRes = wxService.mediaUpload(WxConsts.MEDIA_IMAGE, WxConsts.FILE_JPG, inputStream);
+
+WxMassOpenIdsMessage massMessage = new WxMassOpenIdsMessage();
+massMessage.setMsgtype(WxConsts.MASS_MSG_IMAGE);
+massMessage.setMedia_id(uploadMediaRes.getMedia_id());
+massMessage.getTouser().add(openid);
+
+WxMassSendResult massResult = wxService.massOpenIdsMessageSend(massMessage);
+```
+
+#### 语音消息
+```java
+WxMediaUploadResult uploadMediaRes = wxService.mediaUpload(WxConsts.MEDIA_VOICE, WxConsts.FILE_MP3, inputStream);
+
+WxMassOpenIdsMessage massMessage = new WxMassOpenIdsMessage();
+massMessage.setMsgtype(WxConsts.MASS_MSG_VOICE);
+massMessage.setMedia_id(uploadMediaRes.getMedia_id());
+massMessage.getTouser().add(openid);
+
+WxMassSendResult massResult = wxService.massOpenIdsMessageSend(massMessage);
+```
+
+#### 图文消息
+```java
+// 先上传图文消息里需要的图片
+WxMediaUploadResult uploadMediaRes = wxService.mediaUpload(WxConsts.MEDIA_IMAGE, WxConsts.FILE_JPG, inputStream);
+
+WxMassNews news = new WxMassNews();
+WxMassNewsArticle article1 = new WxMassNewsArticle();
+article1.setTitle("标题1");
+article1.setContent("内容1");
+article1.setThumb_media_id(uploadMediaRes.getMedia_id());
+news.addArticle(article1);
+
+WxMassNewsArticle article2 = new WxMassNewsArticle();
+article2.setTitle("标题2");
+article2.setContent("内容2");
+article2.setThumb_media_id(uploadMediaRes.getMedia_id());
+article2.setShow_cover_pic(true);
+article2.setAuthor("作者2");
+article2.setContent_source_url("www.baidu.com");
+article2.setDigest("摘要2");
+news.addArticle(article2);
+
+WxMassUploadResult massUploadResult = wxService.massNewsUpload(news);
+
+WxMassOpenIdsMessage massMessage = new WxMassOpenIdsMessage();
+massMessage.setMsgtype(WxConsts.MASS_MSG_NEWS);
+massMessage.setMedia_id(uploadResult.getMedia_id());
+massMessage.getTouser().add(openid);
+
+WxMassSendResult massResult = wxService.massOpenIdsMessageSend(massMessage);
+```
+
+### 自定义菜单
+
+#### 创建自定义菜单
+```java
+WxMenu wxMenu = new WxMenu();
+// 设置菜单
+wxService.menuCreate(wxMenu);
+```
+
+#### 删除自定义菜单
+```java
+wxService.menuDelete();
+```
+
+#### 获得自定义菜单
+```java
+WxMenu wxMenu = wxService.menuGet()
+```
+
+### 二维码
+
+#### 获得二维码ticket
+```java
+// 临时ticket
+WxQrCodeTicket ticket = wxService.qrCodeCreateTmpTicket(scene, expire_seconds);
+// 永久ticket
+WxQrCodeTicket ticket = wxService.qrCodeCreateLastTicket(scene);
+```
+
+#### 换取二维码图片
+```java
+WxQrCodeTicket ticket = ...;
+// 获得一个在系统临时目录下的文件，是jpg格式的
+File file = wxService.qrCodePicture(ticket);
+```
+
+### 短链接
+
+```java
+String shortUrl = wxService.shortUrl("www.baidu.com");
+```
 
 ## 如何执行单元测试
 将 ``src/test/resources/test-config.sample.xml`` 改成 ``test-config.xml`` 设置appId, secret, accessToken(可选), openId
diff --git a/src/main/java/chanjarster/weixin/api/WxService.java b/src/main/java/chanjarster/weixin/api/WxService.java
index ac67c8796..c6d22ed87 100644
--- a/src/main/java/chanjarster/weixin/api/WxService.java
+++ b/src/main/java/chanjarster/weixin/api/WxService.java
@@ -210,7 +210,7 @@ public interface WxService {
    * @param openid 微信用户的openid 
    * @throws WxErrorException
    */
-  public long groupQueryUserGroup(String openid) throws WxErrorException;
+  public long userGetGroup(String openid) throws WxErrorException;
   
   /**
    * <pre>
@@ -296,7 +296,7 @@ public interface WxService {
 
   /**
    * <pre>
-   * 换取二维码图片
+   * 换取二维码图片文件，jpg格式
    * 详情请见: http://mp.weixin.qq.com/wiki/index.php?title=生成带参数的二维码
    * </pre>
    * @param ticket    二维码ticket
diff --git a/src/main/java/chanjarster/weixin/api/WxServiceImpl.java b/src/main/java/chanjarster/weixin/api/WxServiceImpl.java
index 89f103858..ba4c4fe2e 100644
--- a/src/main/java/chanjarster/weixin/api/WxServiceImpl.java
+++ b/src/main/java/chanjarster/weixin/api/WxServiceImpl.java
@@ -223,7 +223,7 @@ public class WxServiceImpl implements WxService {
     return WxGsonBuilder.INSTANCE.create().fromJson(tmpJsonElement.getAsJsonObject().get("groups"), new TypeToken<List<WxGroup>>(){}.getType());
   }
   
-  public long groupQueryUserGroup(String openid) throws WxErrorException {
+  public long userGetGroup(String openid) throws WxErrorException {
     String url = "https://api.weixin.qq.com/cgi-bin/groups/getid";
     JsonObject o = new JsonObject();
     o.addProperty("openid", openid);
diff --git a/src/test/java/chanjarster/weixin/api/WxGroupAPITest.java b/src/test/java/chanjarster/weixin/api/WxGroupAPITest.java
index d3ab5699a..aa4a3da2a 100644
--- a/src/test/java/chanjarster/weixin/api/WxGroupAPITest.java
+++ b/src/test/java/chanjarster/weixin/api/WxGroupAPITest.java
@@ -6,7 +6,6 @@ import org.testng.Assert;
 import org.testng.annotations.Guice;
 import org.testng.annotations.Test;
 
-import chanjarster.weixin.api.ApiTestModule.WxXmlConfigStorage;
 import chanjarster.weixin.bean.WxGroup;
 import chanjarster.weixin.exception.WxErrorException;
 
@@ -42,22 +41,10 @@ public class WxGroupAPITest {
     }
   }
   
-  @Test(dependsOnMethods="testGroupCreate")
-  public void testGroupQueryUserGroup() throws WxErrorException {
-    WxXmlConfigStorage configStorage = (WxXmlConfigStorage) wxService.wxConfigStorage;
-    long groupid = wxService.groupQueryUserGroup(configStorage.getOpenId());
-    Assert.assertTrue(groupid != -1l);
-  }
-  
   @Test(dependsOnMethods={"testGroupGet", "testGroupCreate"})
   public void getGroupUpdate() throws WxErrorException {
     group.setName("分组改名");
     wxService.groupUpdate(group);
   }
 
-  @Test(dependsOnMethods={"testGroupGet", "testGroupCreate"})
-  public void getGroupMoveUser() throws WxErrorException {
-    WxXmlConfigStorage configStorage = (WxXmlConfigStorage) wxService.wxConfigStorage;
-    wxService.userUpdateGroup(configStorage.getOpenId(), group.getId());
-  }
 }
diff --git a/src/test/java/chanjarster/weixin/api/WxMediaAPITest.java b/src/test/java/chanjarster/weixin/api/WxMediaAPITest.java
index b10ce5860..cfb200b27 100644
--- a/src/test/java/chanjarster/weixin/api/WxMediaAPITest.java
+++ b/src/test/java/chanjarster/weixin/api/WxMediaAPITest.java
@@ -1,5 +1,6 @@
 package chanjarster.weixin.api;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
@@ -57,7 +58,8 @@ public class WxMediaAPITest {
   
   @Test(dependsOnMethods = { "testUploadMedia" }, dataProvider="downloadMedia")
   public void testDownloadMedia(String media_id) throws WxErrorException {
-    wxService.mediaDownload(media_id);
+    File file = wxService.mediaDownload(media_id);
+    Assert.assertNotNull(file);
   }
   
   @DataProvider
diff --git a/src/test/java/chanjarster/weixin/api/WxShortUrlAPITest.java b/src/test/java/chanjarster/weixin/api/WxShortUrlAPITest.java
index d957ffcc4..d4cd31d7e 100644
--- a/src/test/java/chanjarster/weixin/api/WxShortUrlAPITest.java
+++ b/src/test/java/chanjarster/weixin/api/WxShortUrlAPITest.java
@@ -9,7 +9,7 @@ import chanjarster.weixin.exception.WxErrorException;
 import com.google.inject.Inject;
 
 /**
- * 测试用户相关的接口
+ * 测试短连接
  * 
  * @author chanjarster
  */
diff --git a/src/test/java/chanjarster/weixin/api/WxUserAPITest.java b/src/test/java/chanjarster/weixin/api/WxUserAPITest.java
index 1381f158e..64a0e0308 100644
--- a/src/test/java/chanjarster/weixin/api/WxUserAPITest.java
+++ b/src/test/java/chanjarster/weixin/api/WxUserAPITest.java
@@ -8,7 +8,6 @@ import chanjarster.weixin.api.ApiTestModule.WxXmlConfigStorage;
 import chanjarster.weixin.bean.result.WxUser;
 import chanjarster.weixin.bean.result.WxUserList;
 import chanjarster.weixin.exception.WxErrorException;
-import chanjarster.weixin.util.json.WxGsonBuilder;
 
 import com.google.inject.Inject;
 
@@ -17,7 +16,7 @@ import com.google.inject.Inject;
  * @author chanjarster
  *
  */
-@Test(groups = "userAPI", dependsOnGroups = { "baseAPI" })
+@Test(groups = "userAPI", dependsOnGroups = { "baseAPI", "groupAPI" })
 @Guice(modules = ApiTestModule.class)
 public class WxUserAPITest {
 
@@ -33,7 +32,6 @@ public class WxUserAPITest {
     WxXmlConfigStorage configProvider = (WxXmlConfigStorage) wxService.wxConfigStorage;
     WxUser user = wxService.userInfo(configProvider.getOpenId(), null);
     Assert.assertNotNull(user);
-    System.out.println(WxGsonBuilder.INSTANCE.create().toJson(user));
   }
   
   public void testUserList() throws WxErrorException  {
@@ -44,4 +42,15 @@ public class WxUserAPITest {
       Assert.assertFalse(wxUserList.getOpenids().size() == -1);
   }
     
+  public void testGroupQueryUserGroup() throws WxErrorException {
+    WxXmlConfigStorage configStorage = (WxXmlConfigStorage) wxService.wxConfigStorage;
+    long groupid = wxService.userGetGroup(configStorage.getOpenId());
+    Assert.assertTrue(groupid != -1l);
+  }
+  
+  public void getGroupMoveUser() throws WxErrorException {
+    WxXmlConfigStorage configStorage = (WxXmlConfigStorage) wxService.wxConfigStorage;
+    wxService.userUpdateGroup(configStorage.getOpenId(), wxService.groupGet().get(3).getId());
+  }
+  
 }
diff --git a/src/test/resources/testng.xml b/src/test/resources/testng.xml
index d5b967a2d..2f3bddf2c 100644
--- a/src/test/resources/testng.xml
+++ b/src/test/resources/testng.xml
@@ -6,13 +6,13 @@
 			<class name="chanjarster.weixin.api.WxBaseAPITest" />
 			<class name="chanjarster.weixin.api.WxCustomMessageAPITest" />
 			<class name="chanjarster.weixin.api.WxMenuAPITest" />
-			<class name="chanjarster.weixin.api.WxMessageRouterTest" />
+			<class name="chanjarster.weixin.api.WxGroupAPITest" />
 			<class name="chanjarster.weixin.api.WxMassMessageAPITest" />
 			<class name="chanjarster.weixin.api.WxMediaAPITest" />
-			<class name="chanjarster.weixin.api.WxMassMessageAPITest" />
       <class name="chanjarster.weixin.api.WxUserAPITest" />
       <class name="chanjarster.weixin.api.WxQrCodeAPITest" />
       <class name="chanjarster.weixin.api.WxShortUrlAPITest" />
+			<class name="chanjarster.weixin.api.WxMessageRouterTest" />
 		</classes>
 	</test>