diff --git a/center.manager/src/test/java/center/manager/test/user/DeadLockTest.java b/center.manager/src/test/java/center/manager/test/user/DeadLockTest.java
new file mode 100644
index 0000000..d402197
--- /dev/null
+++ b/center.manager/src/test/java/center/manager/test/user/DeadLockTest.java
@@ -0,0 +1,43 @@
+package center.manager.test.user;
+public class DeadLockTest implements Runnable {
+	private int flag;
+	static Object o1 = new Object(), o2 = new Object(); // 静态的对象，被DeadLockTest的所有实例对象所公用
+
+	public void run() {
+
+		System.out.println(flag);
+		if (flag == 0) {
+			synchronized (o1) {
+				try {
+					Thread.sleep(500);
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
+				synchronized (o2) {
+				}
+			}
+		}
+		if (flag == 1) {
+			synchronized (o2) {
+				try {
+					Thread.sleep(500);
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
+				synchronized (o1) {
+				}
+			}
+		}
+	}
+
+	public static void main(String[] args) {
+		DeadLockTest test1 = new DeadLockTest();
+		DeadLockTest test2 = new DeadLockTest();
+		test1.flag = 1;
+		test2.flag = 0;
+		Thread thread1 = new Thread(test1);
+		Thread thread2 = new Thread(test2);
+		thread1.start();
+		thread2.start();
+	}
+}
\ No newline at end of file
diff --git a/core.sdk/src/main/java/com/lyms/sycn/channel/ChannelData.java b/core.sdk/src/main/java/com/lyms/sycn/channel/ChannelData.java
index 8ac9cf1..fa0d710 100644
--- a/core.sdk/src/main/java/com/lyms/sycn/channel/ChannelData.java
+++ b/core.sdk/src/main/java/com/lyms/sycn/channel/ChannelData.java
@@ -86,6 +86,7 @@ public class ChannelData implements Serializable {
 	 * @param remoteClazz
 	 * @param remoteMethod
 	 * @param data
+	 *            {@link ChannelData#toJsonString()}
 	 * @param loop
 	 */
 	public ChannelData(String id, String remote, String remoteClazz, String remoteMethod, String data, boolean loop) {
diff --git a/hospital.web/src/main/java/com/lyms/hospital/service/sys/SyncDataBasicService.java b/hospital.web/src/main/java/com/lyms/hospital/service/sys/SyncDataBasicService.java
index bd9a98a..67c20f9 100644
--- a/hospital.web/src/main/java/com/lyms/hospital/service/sys/SyncDataBasicService.java
+++ b/hospital.web/src/main/java/com/lyms/hospital/service/sys/SyncDataBasicService.java
@@ -47,4 +47,5 @@ public interface SyncDataBasicService extends BaseService<SyncDataBasic> {
 	public ChannelData selectOne();
 
 	public Boolean updateBasic(Serializable id);
+
 }