diff --git a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxErrorExceptionHandler.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxErrorExceptionHandler.java
similarity index 82%
rename from weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxErrorExceptionHandler.java
rename to weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxErrorExceptionHandler.java
index 70940aef3..9abda804b 100644
--- a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxErrorExceptionHandler.java
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxErrorExceptionHandler.java
@@ -1,4 +1,4 @@
-package me.chanjar.weixin.common.util;
+package me.chanjar.weixin.common.api;
 
 import me.chanjar.weixin.common.exception.WxErrorException;
 
diff --git a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxMessageDuplicateChecker.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageDuplicateChecker.java
similarity index 96%
rename from weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxMessageDuplicateChecker.java
rename to weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageDuplicateChecker.java
index 1abe588b0..6cdb689a1 100644
--- a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxMessageDuplicateChecker.java
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageDuplicateChecker.java
@@ -1,4 +1,4 @@
-package me.chanjar.weixin.common.util;
+package me.chanjar.weixin.common.api;
 
 /**
  * <pre>
diff --git a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxMessageInMemoryDuplicateChecker.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageInMemoryDuplicateChecker.java
similarity index 98%
rename from weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxMessageInMemoryDuplicateChecker.java
rename to weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageInMemoryDuplicateChecker.java
index ae0e06231..1efc7a27e 100644
--- a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/WxMessageInMemoryDuplicateChecker.java
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/api/WxMessageInMemoryDuplicateChecker.java
@@ -1,4 +1,4 @@
-package me.chanjar.weixin.common.util;
+package me.chanjar.weixin.common.api;
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/result/WxMpJsapiSignature.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/WxJsapiSignature.java
similarity index 91%
rename from weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/result/WxMpJsapiSignature.java
rename to weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/WxJsapiSignature.java
index a09c40820..c01d6c61e 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/bean/result/WxMpJsapiSignature.java
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/WxJsapiSignature.java
@@ -1,9 +1,9 @@
-package me.chanjar.weixin.mp.bean.result;
+package me.chanjar.weixin.common.bean;
 
 /**
  * jspai signature
  */
-public class WxMpJsapiSignature {
+public class WxJsapiSignature {
 
   private String noncestr;
 
diff --git a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/LogExceptionHandler.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/LogExceptionHandler.java
index 1fa1af75b..a512e5992 100644
--- a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/LogExceptionHandler.java
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/LogExceptionHandler.java
@@ -1,5 +1,6 @@
 package me.chanjar.weixin.common.util;
 
+import me.chanjar.weixin.common.api.WxErrorExceptionHandler;
 import me.chanjar.weixin.common.exception.WxErrorException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/RandomUtils.java b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/RandomUtils.java
new file mode 100644
index 000000000..bbb11992b
--- /dev/null
+++ b/weixin-java-common/src/main/java/me/chanjar/weixin/common/util/RandomUtils.java
@@ -0,0 +1,17 @@
+package me.chanjar.weixin.common.util;
+
+public class RandomUtils {
+
+  private static final String RANDOM_STR = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+  private static final java.util.Random RANDOM = new java.util.Random();
+
+  public static String getRandomStr() {
+    StringBuilder sb = new StringBuilder();
+    for (int i = 0; i < 16; i++) {
+      sb.append(RANDOM_STR.charAt(RANDOM.nextInt(RANDOM_STR.length())));
+    }
+    return sb.toString();
+  }
+
+}
diff --git a/weixin-java-common/src/test/java/me/chanjar/weixin/common/util/WxMessageInMemoryDuplicateCheckerTest.java b/weixin-java-common/src/test/java/me/chanjar/weixin/common/util/WxMessageInMemoryDuplicateCheckerTest.java
index 28642c44d..7369d6371 100644
--- a/weixin-java-common/src/test/java/me/chanjar/weixin/common/util/WxMessageInMemoryDuplicateCheckerTest.java
+++ b/weixin-java-common/src/test/java/me/chanjar/weixin/common/util/WxMessageInMemoryDuplicateCheckerTest.java
@@ -1,5 +1,6 @@
 package me.chanjar.weixin.common.util;
 
+import me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker;
 import org.testng.Assert;
 import org.testng.annotations.Test;
 
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpConfigStorage.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpConfigStorage.java
index 44123a36a..94029841d 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpConfigStorage.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpConfigStorage.java
@@ -22,6 +22,20 @@ public interface WxCpConfigStorage {
 
   public void updateAccessToken(String accessToken, int expiresIn);
 
+  public String getJsapiTicket();
+
+  public boolean isJsapiTicketExpired();
+
+  /**
+   * 强制将jsapi ticket过期掉
+   */
+  public void expireJsapiTicket();
+
+  /**
+   * 应该是线程安全的
+   * @param jsapiTicket
+   */
+  public void updateJsapiTicket(String jsapiTicket, int expiresInSeconds);
 
   public String getCorpId();
   
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpInMemoryConfigStorage.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpInMemoryConfigStorage.java
index b7f662cd2..59fc6f2a1 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpInMemoryConfigStorage.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpInMemoryConfigStorage.java
@@ -25,6 +25,9 @@ public class WxCpInMemoryConfigStorage implements WxCpConfigStorage {
   protected volatile String http_proxy_username;
   protected volatile String http_proxy_password;
 
+  protected volatile String jsapiTicket;
+  protected volatile long jsapiTicketExpiresTime;
+
   public String getAccessToken() {
     return this.accessToken;
   }
@@ -46,6 +49,37 @@ public class WxCpInMemoryConfigStorage implements WxCpConfigStorage {
     this.expiresTime = System.currentTimeMillis() + (expiresInSeconds - 200) * 1000l;
   }
 
+  @Override
+  public String getJsapiTicket() {
+    return jsapiTicket;
+  }
+
+  public void setJsapiTicket(String jsapiTicket) {
+    this.jsapiTicket = jsapiTicket;
+  }
+
+  public long getJsapiTicketExpiresTime() {
+    return jsapiTicketExpiresTime;
+  }
+
+  public void setJsapiTicketExpiresTime(long jsapiTicketExpiresTime) {
+    this.jsapiTicketExpiresTime = jsapiTicketExpiresTime;
+  }
+
+  public boolean isJsapiTicketExpired() {
+    return System.currentTimeMillis() > this.jsapiTicketExpiresTime;
+  }
+
+  public synchronized void updateJsapiTicket(String jsapiTicket, int expiresInSeconds) {
+    this.jsapiTicket = jsapiTicket;
+    // 预留200秒的时间
+    this.jsapiTicketExpiresTime = System.currentTimeMillis() + (expiresInSeconds - 200) * 1000l;
+  }
+
+  public void expireJsapiTicket() {
+    this.jsapiTicketExpiresTime = 0;
+  }
+
   public String getCorpId() {
     return this.corpId;
   }
@@ -153,6 +187,8 @@ public class WxCpInMemoryConfigStorage implements WxCpConfigStorage {
         ", http_proxy_port=" + http_proxy_port +
         ", http_proxy_username='" + http_proxy_username + '\'' +
         ", http_proxy_password='" + http_proxy_password + '\'' +
+        ", jsapiTicket='" + jsapiTicket + '\'' +
+        ", jsapiTicketExpiresTime='" + jsapiTicketExpiresTime + '\'' +
         '}';
   }
 
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouter.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouter.java
index 52f16bf50..29798b918 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouter.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouter.java
@@ -5,9 +5,9 @@ import me.chanjar.weixin.common.session.InternalSessionManager;
 import me.chanjar.weixin.common.session.StandardSessionManager;
 import me.chanjar.weixin.common.session.WxSessionManager;
 import me.chanjar.weixin.common.util.LogExceptionHandler;
-import me.chanjar.weixin.common.util.WxErrorExceptionHandler;
-import me.chanjar.weixin.common.util.WxMessageDuplicateChecker;
-import me.chanjar.weixin.common.util.WxMessageInMemoryDuplicateChecker;
+import me.chanjar.weixin.common.api.WxErrorExceptionHandler;
+import me.chanjar.weixin.common.api.WxMessageDuplicateChecker;
+import me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker;
 import me.chanjar.weixin.cp.bean.WxCpXmlMessage;
 import me.chanjar.weixin.cp.bean.WxCpXmlOutMessage;
 import org.slf4j.Logger;
@@ -87,8 +87,8 @@ public class WxCpMessageRouter {
 
   /**
    * <pre>
-   * 设置自定义的 {@link me.chanjar.weixin.common.util.WxMessageDuplicateChecker}
-   * 如果不调用该方法，默认使用 {@link me.chanjar.weixin.common.util.WxMessageInMemoryDuplicateChecker}
+   * 设置自定义的 {@link me.chanjar.weixin.common.api.WxMessageDuplicateChecker}
+   * 如果不调用该方法，默认使用 {@link me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker}
    * </pre>
    * @param messageDuplicateChecker
    */
@@ -109,7 +109,7 @@ public class WxCpMessageRouter {
 
   /**
    * <pre>
-   * 设置自定义的{@link me.chanjar.weixin.common.util.WxErrorExceptionHandler}
+   * 设置自定义的{@link me.chanjar.weixin.common.api.WxErrorExceptionHandler}
    * 如果不调用该方法，默认使用 {@link me.chanjar.weixin.common.util.LogExceptionHandler}
    * </pre>
    * @param exceptionHandler
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouterRule.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouterRule.java
index 7fb253c74..cf453938e 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouterRule.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpMessageRouterRule.java
@@ -2,7 +2,7 @@ package me.chanjar.weixin.cp.api;
 
 import me.chanjar.weixin.common.exception.WxErrorException;
 import me.chanjar.weixin.common.session.WxSessionManager;
-import me.chanjar.weixin.common.util.WxErrorExceptionHandler;
+import me.chanjar.weixin.common.api.WxErrorExceptionHandler;
 import me.chanjar.weixin.cp.bean.WxCpXmlMessage;
 import me.chanjar.weixin.cp.bean.WxCpXmlOutMessage;
 
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpServiceImpl.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpServiceImpl.java
index 3f14a53c8..3fc393b09 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpServiceImpl.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpServiceImpl.java
@@ -8,6 +8,7 @@ import com.google.gson.internal.Streams;
 import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.JsonReader;
 import me.chanjar.weixin.common.bean.WxAccessToken;
+import me.chanjar.weixin.common.bean.WxJsapiSignature;
 import me.chanjar.weixin.common.bean.WxMenu;
 import me.chanjar.weixin.common.bean.result.WxError;
 import me.chanjar.weixin.common.bean.result.WxMediaUploadResult;
@@ -15,6 +16,7 @@ import me.chanjar.weixin.common.exception.WxErrorException;
 import me.chanjar.weixin.common.session.StandardSessionManager;
 import me.chanjar.weixin.common.session.WxSession;
 import me.chanjar.weixin.common.session.WxSessionManager;
+import me.chanjar.weixin.common.util.RandomUtils;
 import me.chanjar.weixin.common.util.StringUtils;
 import me.chanjar.weixin.common.util.crypto.SHA1;
 import me.chanjar.weixin.common.util.fs.FileUtils;
@@ -44,6 +46,7 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.StringReader;
+import java.security.NoSuchAlgorithmException;
 import java.util.List;
 import java.util.UUID;
 
@@ -54,7 +57,12 @@ public class WxCpServiceImpl implements WxCpService {
   /**
    * 全局的是否正在刷新access token的锁
    */
-  protected static final Object GLOBAL_ACCESS_TOKEN_REFRESH_LOCK = new Object();
+  protected final Object globalAccessTokenRefreshLock = new Object();
+
+  /**
+   * 全局的是否正在刷新jsapi_ticket的锁
+   */
+  protected final Object globalJsapiTicketRefreshLock = new Object();
 
   protected WxCpConfigStorage wxCpConfigStorage;
 
@@ -90,7 +98,7 @@ public class WxCpServiceImpl implements WxCpService {
       wxCpConfigStorage.expireAccessToken();
     }
     if (wxCpConfigStorage.isAccessTokenExpired()) {
-      synchronized (GLOBAL_ACCESS_TOKEN_REFRESH_LOCK) {
+      synchronized (globalAccessTokenRefreshLock) {
         if (wxCpConfigStorage.isAccessTokenExpired()) {
           String url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?"
               + "&corpid=" + wxCpConfigStorage.getCorpId()
@@ -121,6 +129,52 @@ public class WxCpServiceImpl implements WxCpService {
     return wxCpConfigStorage.getAccessToken();
   }
 
+  public String getJsapiTicket() throws WxErrorException {
+    return getJsapiTicket(false);
+  }
+
+  public String getJsapiTicket(boolean forceRefresh) throws WxErrorException {
+    if (forceRefresh) {
+      wxCpConfigStorage.expireJsapiTicket();
+    }
+    if (wxCpConfigStorage.isJsapiTicketExpired()) {
+      synchronized (globalJsapiTicketRefreshLock) {
+        if (wxCpConfigStorage.isJsapiTicketExpired()) {
+          String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi";
+          String responseContent = execute(new SimpleGetRequestExecutor(), url, null);
+          JsonElement tmpJsonElement = Streams.parse(new JsonReader(new StringReader(responseContent)));
+          JsonObject tmpJsonObject = tmpJsonElement.getAsJsonObject();
+          String jsapiTicket = tmpJsonObject.get("ticket").getAsString();
+          int expiresInSeconds = tmpJsonObject.get("expires_in").getAsInt();
+          wxCpConfigStorage.updateJsapiTicket(jsapiTicket, expiresInSeconds);
+        }
+      }
+    }
+    return wxCpConfigStorage.getJsapiTicket();
+  }
+
+  public WxJsapiSignature createJsapiSignature(String url) throws WxErrorException {
+    long timestamp = System.currentTimeMillis() / 1000;
+    String noncestr = RandomUtils.getRandomStr();
+    String jsapiTicket = getJsapiTicket(false);
+    try {
+      String signature = SHA1.genWithAmple(
+          "jsapi_ticket=" + jsapiTicket,
+          "noncestr=" + noncestr,
+          "timestamp=" + timestamp,
+          "url=" + url
+      );
+      WxJsapiSignature jsapiSignature = new WxJsapiSignature();
+      jsapiSignature.setTimestamp(timestamp);
+      jsapiSignature.setNoncestr(noncestr);
+      jsapiSignature.setUrl(url);
+      jsapiSignature.setSignature(signature);
+      return jsapiSignature;
+    } catch (NoSuchAlgorithmException e) {
+      throw new RuntimeException(e);
+    }
+  }
+
   public void messageSend(WxCpMessage message) throws WxErrorException {
     String url = "https://qyapi.weixin.qq.com/cgi-bin/message/send";
     post(url, message.toJson());
@@ -477,7 +531,7 @@ public class WxCpServiceImpl implements WxCpService {
        * 42001 access_token超时
        */
       if (error.getErrorCode() == 42001 || error.getErrorCode() == 40001) {
-        // 强制设置wxMpConfigStorage它的access token过期了，这样在下一次请求里就会刷新access token
+        // 强制设置wxCpConfigStorage它的access token过期了，这样在下一次请求里就会刷新access token
         wxCpConfigStorage.expireAccessToken();
         return execute(executor, uri, data);
       }
diff --git a/weixin-java-mp/src/main/java/TestNonAtomicLongAssignment.java b/weixin-java-mp/src/main/java/TestNonAtomicLongAssignment.java
new file mode 100644
index 000000000..e86d89fe3
--- /dev/null
+++ b/weixin-java-mp/src/main/java/TestNonAtomicLongAssignment.java
@@ -0,0 +1,68 @@
+/**
+ * Created by qianjia on 15/1/25.
+ */
+public class TestNonAtomicLongAssignment {
+
+  private static final long HI = 1l << 32;
+  private static final long LO = 1l;
+
+  private static final long TEST_NUMBER = HI | LO;
+
+  private static long assignee = 0l;
+
+  public static void main(String[] args) {
+
+    Thread writer = new Thread(new Runnable() {
+      @Override
+      public void run() {
+        while (true) {
+          assignee = TEST_NUMBER;
+        }
+      }
+    });
+    writer.setDaemon(true);
+
+    Thread reader = new Thread(new Runnable() {
+      @Override
+      public void run() {
+        long i = 0;
+        while (true) {
+          i++;
+          long test = assignee;
+          if (test != TEST_NUMBER) {
+            System.out.print(i + " times:" + toBin(test));
+            break;
+          }
+        }
+      }
+    });
+
+    //    Thread worker = new Thread(new Runnable() {
+    //      @Override
+    //      public void run() {
+    //        double d = 89009808877238948224343435452333323113131313133434434341212323232424243434335354232390490189190420928348910913094983.323334401928d;
+    //        while(true) {
+    //          Math.cbrt(d);
+    //          d = d - 1l;
+    //        }
+    //      }
+    //    });
+    //    worker.setDaemon(true);
+    //    worker.start();
+
+    writer.start();
+    reader.start();
+
+  }
+
+  public static String toBin(long n) {
+    StringBuilder sb = new StringBuilder(Long.toBinaryString(n));
+    int padding = 64 - sb.length();
+    while (padding > 0) {
+      sb.insert(0, '0');
+      padding--;
+    }
+    return sb.toString();
+  }
+
+}
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpInMemoryConfigStorage.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpInMemoryConfigStorage.java
index f1fb8fe63..3033d1789 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpInMemoryConfigStorage.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpInMemoryConfigStorage.java
@@ -51,6 +51,18 @@ public class WxMpInMemoryConfigStorage implements WxMpConfigStorage {
     return jsapiTicket;
   }
 
+  public void setJsapiTicket(String jsapiTicket) {
+    this.jsapiTicket = jsapiTicket;
+  }
+
+  public long getJsapiTicketExpiresTime() {
+    return jsapiTicketExpiresTime;
+  }
+
+  public void setJsapiTicketExpiresTime(long jsapiTicketExpiresTime) {
+    this.jsapiTicketExpiresTime = jsapiTicketExpiresTime;
+  }
+
   public boolean isJsapiTicketExpired() {
     return System.currentTimeMillis() > this.jsapiTicketExpiresTime;
   }
@@ -167,5 +179,4 @@ public class WxMpInMemoryConfigStorage implements WxMpConfigStorage {
         ", jsapiTicketExpiresTime='" + jsapiTicketExpiresTime + '\'' +
         '}';
   }
-
 }
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouter.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouter.java
index 1cd2f5809..d98c6a4a2 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouter.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouter.java
@@ -5,9 +5,9 @@ import me.chanjar.weixin.common.session.InternalSessionManager;
 import me.chanjar.weixin.common.session.StandardSessionManager;
 import me.chanjar.weixin.common.session.WxSessionManager;
 import me.chanjar.weixin.common.util.LogExceptionHandler;
-import me.chanjar.weixin.common.util.WxErrorExceptionHandler;
-import me.chanjar.weixin.common.util.WxMessageDuplicateChecker;
-import me.chanjar.weixin.common.util.WxMessageInMemoryDuplicateChecker;
+import me.chanjar.weixin.common.api.WxErrorExceptionHandler;
+import me.chanjar.weixin.common.api.WxMessageDuplicateChecker;
+import me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker;
 import me.chanjar.weixin.mp.bean.WxMpXmlMessage;
 import me.chanjar.weixin.mp.bean.WxMpXmlOutMessage;
 import org.slf4j.Logger;
@@ -87,8 +87,8 @@ public class WxMpMessageRouter {
 
   /**
    * <pre>
-   * 设置自定义的 {@link me.chanjar.weixin.common.util.WxMessageDuplicateChecker}
-   * 如果不调用该方法，默认使用 {@link me.chanjar.weixin.common.util.WxMessageInMemoryDuplicateChecker}
+   * 设置自定义的 {@link me.chanjar.weixin.common.api.WxMessageDuplicateChecker}
+   * 如果不调用该方法，默认使用 {@link me.chanjar.weixin.common.api.WxMessageInMemoryDuplicateChecker}
    * </pre>
    * @param messageDuplicateChecker
    */
@@ -109,7 +109,7 @@ public class WxMpMessageRouter {
 
   /**
    * <pre>
-   * 设置自定义的{@link me.chanjar.weixin.common.util.WxErrorExceptionHandler}
+   * 设置自定义的{@link me.chanjar.weixin.common.api.WxErrorExceptionHandler}
    * 如果不调用该方法，默认使用 {@link me.chanjar.weixin.common.util.LogExceptionHandler}
    * </pre>
    * @param exceptionHandler
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouterRule.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouterRule.java
index 95db8ab40..5f27dab05 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouterRule.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpMessageRouterRule.java
@@ -2,7 +2,7 @@ package me.chanjar.weixin.mp.api;
 
 import me.chanjar.weixin.common.exception.WxErrorException;
 import me.chanjar.weixin.common.session.WxSessionManager;
-import me.chanjar.weixin.common.util.WxErrorExceptionHandler;
+import me.chanjar.weixin.common.api.WxErrorExceptionHandler;
 import me.chanjar.weixin.mp.bean.WxMpXmlMessage;
 import me.chanjar.weixin.mp.bean.WxMpXmlOutMessage;
 
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpService.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpService.java
index 7d1d6dcfb..b27508713 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpService.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpService.java
@@ -1,10 +1,9 @@
 package me.chanjar.weixin.mp.api;
 
 import me.chanjar.weixin.common.bean.WxMenu;
+import me.chanjar.weixin.common.bean.WxJsapiSignature;
 import me.chanjar.weixin.common.bean.result.WxMediaUploadResult;
 import me.chanjar.weixin.common.exception.WxErrorException;
-import me.chanjar.weixin.common.session.WxSession;
-import me.chanjar.weixin.common.session.WxSessionManager;
 import me.chanjar.weixin.common.util.http.RequestExecutor;
 import me.chanjar.weixin.mp.bean.*;
 import me.chanjar.weixin.mp.bean.result.*;
@@ -86,7 +85,7 @@ public interface WxMpService {
    * @param url       url
    * @return
    */
-  public WxMpJsapiSignature createJsapiSignature(String url) throws WxErrorException;
+  public WxJsapiSignature createJsapiSignature(String url) throws WxErrorException;
 
   /**
    * <pre>
diff --git a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpServiceImpl.java b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpServiceImpl.java
index 9f7191401..f44ba14de 100644
--- a/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpServiceImpl.java
+++ b/weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpServiceImpl.java
@@ -7,11 +7,13 @@ import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.JsonReader;
 import me.chanjar.weixin.common.bean.WxAccessToken;
 import me.chanjar.weixin.common.bean.WxMenu;
+import me.chanjar.weixin.common.bean.WxJsapiSignature;
 import me.chanjar.weixin.common.bean.result.WxError;
 import me.chanjar.weixin.common.bean.result.WxMediaUploadResult;
 import me.chanjar.weixin.common.exception.WxErrorException;
 import me.chanjar.weixin.common.session.StandardSessionManager;
 import me.chanjar.weixin.common.session.WxSessionManager;
+import me.chanjar.weixin.common.util.RandomUtils;
 import me.chanjar.weixin.common.util.StringUtils;
 import me.chanjar.weixin.common.util.crypto.SHA1;
 import me.chanjar.weixin.common.util.fs.FileUtils;
@@ -42,15 +44,10 @@ import java.io.InputStream;
 import java.io.StringReader;
 import java.security.NoSuchAlgorithmException;
 import java.util.List;
-import java.util.Random;
 import java.util.UUID;
 
 public class WxMpServiceImpl implements WxMpService {
 
-  protected final String RANDOM_STR = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-
-  protected final Random RANDOM = new Random();
-
   protected final Logger log = LoggerFactory.getLogger(WxMpServiceImpl.class);
 
   /**
@@ -148,9 +145,9 @@ public class WxMpServiceImpl implements WxMpService {
     return wxMpConfigStorage.getJsapiTicket();
   }
 
-  public WxMpJsapiSignature createJsapiSignature(String url) throws WxErrorException {
+  public WxJsapiSignature createJsapiSignature(String url) throws WxErrorException {
     long timestamp = System.currentTimeMillis() / 1000;
-    String noncestr = getRandomStr();
+    String noncestr = RandomUtils.getRandomStr();
     String jsapiTicket = getJsapiTicket(false);
     try {
       String signature = SHA1.genWithAmple(
@@ -159,7 +156,7 @@ public class WxMpServiceImpl implements WxMpService {
           "timestamp=" + timestamp,
           "url=" + url
       );
-      WxMpJsapiSignature jsapiSignature = new WxMpJsapiSignature();
+      WxJsapiSignature jsapiSignature = new WxJsapiSignature();
       jsapiSignature.setTimestamp(timestamp);
       jsapiSignature.setNoncestr(noncestr);
       jsapiSignature.setUrl(url);
@@ -170,14 +167,6 @@ public class WxMpServiceImpl implements WxMpService {
     }
   }
 
-  protected String getRandomStr() {
-    StringBuilder sb = new StringBuilder();
-    for (int i = 0; i < 16; i++) {
-      sb.append(RANDOM_STR.charAt(RANDOM.nextInt(RANDOM_STR.length())));
-    }
-    return sb.toString();
-  }
-
   public void customMessageSend(WxMpCustomMessage message) throws WxErrorException {
     String url = "https://api.weixin.qq.com/cgi-bin/message/custom/send";
     execute(new SimplePostRequestExecutor(), url, message.toJson());