diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/WxMpConfigStorage.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/WxMpConfigStorage.java
index d0d7003a2..88520adf6 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/WxMpConfigStorage.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/WxMpConfigStorage.java
@@ -1,9 +1,9 @@
 package me.chanjar.weixin.mp.config;
 
 import me.chanjar.weixin.common.bean.WxAccessToken;
+import me.chanjar.weixin.common.enums.TicketType;
 import me.chanjar.weixin.common.util.http.apache.ApacheHttpClientBuilder;
 import me.chanjar.weixin.mp.bean.WxMpHostConfig;
-import me.chanjar.weixin.common.enums.TicketType;
 
 import java.io.File;
 import java.util.concurrent.locks.Lock;
@@ -14,10 +14,25 @@ import java.util.concurrent.locks.Lock;
  * @author chanjarster
  */
 public interface WxMpConfigStorage {
+  /**
+   * Gets access token.
+   *
+   * @return the access token
+   */
   String getAccessToken();
 
+  /**
+   * Gets access token lock.
+   *
+   * @return the access token lock
+   */
   Lock getAccessTokenLock();
 
+  /**
+   * Is access token expired boolean.
+   *
+   * @return the boolean
+   */
   boolean isAccessTokenExpired();
 
   /**
@@ -40,14 +55,34 @@ public interface WxMpConfigStorage {
    */
   void updateAccessToken(String accessToken, int expiresInSeconds);
 
+  /**
+   * Gets ticket.
+   *
+   * @param type the type
+   * @return the ticket
+   */
   String getTicket(TicketType type);
 
+  /**
+   * Gets ticket lock.
+   *
+   * @param type the type
+   * @return the ticket lock
+   */
   Lock getTicketLock(TicketType type);
 
+  /**
+   * Is ticket expired boolean.
+   *
+   * @param type the type
+   * @return the boolean
+   */
   boolean isTicketExpired(TicketType type);
 
   /**
    * 强制将ticket过期掉.
+   *
+   * @param type the type
    */
   void expireTicket(TicketType type);
 
@@ -61,44 +96,115 @@ public interface WxMpConfigStorage {
    */
   void updateTicket(TicketType type, String ticket, int expiresInSeconds);
 
+  /**
+   * Gets app id.
+   *
+   * @return the app id
+   */
   String getAppId();
 
+  /**
+   * Gets secret.
+   *
+   * @return the secret
+   */
   String getSecret();
 
+  /**
+   * Gets token.
+   *
+   * @return the token
+   */
   String getToken();
 
+  /**
+   * Gets aes key.
+   *
+   * @return the aes key
+   */
   String getAesKey();
 
+  /**
+   * Gets template id.
+   *
+   * @return the template id
+   */
   String getTemplateId();
 
+  /**
+   * Gets expires time.
+   *
+   * @return the expires time
+   */
   long getExpiresTime();
 
+  /**
+   * Gets oauth 2 redirect uri.
+   *
+   * @return the oauth 2 redirect uri
+   */
   String getOauth2redirectUri();
 
+  /**
+   * Gets http proxy host.
+   *
+   * @return the http proxy host
+   */
   String getHttpProxyHost();
 
+  /**
+   * Gets http proxy port.
+   *
+   * @return the http proxy port
+   */
   int getHttpProxyPort();
 
+  /**
+   * Gets http proxy username.
+   *
+   * @return the http proxy username
+   */
   String getHttpProxyUsername();
 
+  /**
+   * Gets http proxy password.
+   *
+   * @return the http proxy password
+   */
   String getHttpProxyPassword();
 
+  /**
+   * Gets tmp dir file.
+   *
+   * @return the tmp dir file
+   */
   File getTmpDirFile();
 
   /**
    * http client builder.
    *
-   * @return ApacheHttpClientBuilder
+   * @return ApacheHttpClientBuilder apache http client builder
    */
   ApacheHttpClientBuilder getApacheHttpClientBuilder();
 
   /**
    * 是否自动刷新token.
+   *
+   * @return the boolean
    */
   boolean autoRefreshToken();
 
   /**
    * 得到微信接口地址域名部分的自定义设置信息.
+   *
+   * @return the host config
    */
   WxMpHostConfig getHostConfig();
+
+  /**
+   * 设置微信接口地址域名部分的自定义设置信息.
+   *
+   * @param hostConfig host config
+   */
+  void setHostConfig(WxMpHostConfig hostConfig);
 }
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/impl/WxMpDefaultConfigImpl.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/impl/WxMpDefaultConfigImpl.java
index 0cb350f72..637b7b557 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/impl/WxMpDefaultConfigImpl.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/config/impl/WxMpDefaultConfigImpl.java
@@ -1,18 +1,18 @@
 package me.chanjar.weixin.mp.config.impl;
 
+import lombok.Data;
+import me.chanjar.weixin.common.bean.WxAccessToken;
+import me.chanjar.weixin.common.enums.TicketType;
+import me.chanjar.weixin.common.util.http.apache.ApacheHttpClientBuilder;
+import me.chanjar.weixin.mp.bean.WxMpHostConfig;
+import me.chanjar.weixin.mp.config.WxMpConfigStorage;
+import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
+
 import java.io.File;
 import java.io.Serializable;
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantLock;
 
-import lombok.Data;
-import me.chanjar.weixin.common.bean.WxAccessToken;
-import me.chanjar.weixin.common.util.http.apache.ApacheHttpClientBuilder;
-import me.chanjar.weixin.mp.config.WxMpConfigStorage;
-import me.chanjar.weixin.mp.bean.WxMpHostConfig;
-import me.chanjar.weixin.common.enums.TicketType;
-import me.chanjar.weixin.mp.util.json.WxMpGsonBuilder;
-
 /**
  * 基于内存的微信配置provider，在实际生产环境中应该将这些配置持久化.
  *
@@ -46,15 +46,17 @@ public class WxMpDefaultConfigImpl implements WxMpConfigStorage, Serializable {
   protected volatile String cardApiTicket;
   protected volatile long cardApiTicketExpiresTime;
 
-  protected Lock accessTokenLock = new ReentrantLock();
-  protected Lock jsapiTicketLock = new ReentrantLock();
-  protected Lock sdkTicketLock = new ReentrantLock();
-  protected Lock cardApiTicketLock = new ReentrantLock();
+  protected volatile Lock accessTokenLock = new ReentrantLock();
+  protected volatile Lock jsapiTicketLock = new ReentrantLock();
+  protected volatile Lock sdkTicketLock = new ReentrantLock();
+  protected volatile Lock cardApiTicketLock = new ReentrantLock();
 
   protected volatile File tmpDirFile;
 
   protected volatile ApacheHttpClientBuilder apacheHttpClientBuilder;
 
+  private WxMpHostConfig hostConfig = null;
+
   @Override
   public boolean isAccessTokenExpired() {
     return System.currentTimeMillis() > this.expiresTime;
@@ -183,7 +185,12 @@ public class WxMpDefaultConfigImpl implements WxMpConfigStorage, Serializable {
 
   @Override
   public WxMpHostConfig getHostConfig() {
-    return null;
+    return this.hostConfig;
+  }
+
+  @Override
+  public void setHostConfig(WxMpHostConfig hostConfig) {
+    this.hostConfig = hostConfig;
   }
 
 }