Optimized code

did-server/src/main/java/io/github/ehlxr/did/server/BaseServer.java

@@ -24,8 +24,8 @@
 
 package io.github.ehlxr.did.server;
 
-import io.github.ehlxr.did.generator.SnowFlake;
 import io.github.ehlxr.did.common.Try;
+import io.github.ehlxr.did.generator.SnowFlake;
 import io.netty.bootstrap.ServerBootstrap;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelOption;

did-server/src/main/java/io/github/ehlxr/did/server/http/HttpServer.java

@@ -24,9 +24,9 @@
 
 package io.github.ehlxr.did.server.http;
 
-import io.github.ehlxr.did.generator.SnowFlake;
 import io.github.ehlxr.did.common.Constants;
 import io.github.ehlxr.did.common.Try;
+import io.github.ehlxr.did.generator.SnowFlake;
 import io.github.ehlxr.did.server.BaseServer;
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.socket.SocketChannel;

did-server/src/main/java/io/github/ehlxr/did/server/http/HttpServerHandler.java

@@ -25,10 +25,10 @@
 package io.github.ehlxr.did.server.http;
 
 import io.github.ehlxr.did.SdkProto;
-import io.github.ehlxr.did.generator.SnowFlake;
 import io.github.ehlxr.did.common.Constants;
 import io.github.ehlxr.did.common.NettyUtil;
 import io.github.ehlxr.did.common.Result;
+import io.github.ehlxr.did.generator.SnowFlake;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelFutureListener;
 import io.netty.channel.ChannelHandlerContext;

did-server/src/main/java/io/github/ehlxr/did/server/sdk/SdkServer.java

@@ -24,11 +24,11 @@
 
 package io.github.ehlxr.did.server.sdk;
 
-import io.github.ehlxr.did.generator.SnowFlake;
 import io.github.ehlxr.did.adapter.MessageDecoder;
 import io.github.ehlxr.did.adapter.MessageEncoder;
 import io.github.ehlxr.did.common.Constants;
 import io.github.ehlxr.did.common.Try;
+import io.github.ehlxr.did.generator.SnowFlake;
 import io.github.ehlxr.did.server.BaseServer;
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.socket.SocketChannel;