[已回复] 将 MobileIMSDK 集成到 WEB项目启动，客户端连接错误

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用DOME测试连接调用，服务报错日志如下，，，

{INFO } [2017-04-13 16:15:17,468] <net.openmob.mobileimsdk.server.ServerCoreHandler> : [IMCORE]与{uid:null,cid:-1}/192.168.1.19:8463的会话建立(sessionCreated)了...
{INFO } [2017-04-13 16:15:17,515] <net.openmob.mobileimsdk.server.ServerCoreHandler> : [IMCORE]与{uid:null,cid:-1}/192.168.1.19:8463的会话(sessionOpened)打开了...
{ERROR} [2017-04-13 16:15:17,640] <net.openmob.mobileimsdk.server.ServerCoreHandler> : [IMCORE]exceptionCaught捕获到错了，原因是：No-args constructor for class net.openmob.mobileimsdk.server.protocal.Protocal does not exist. Register an InstanceCreator with Gson for this type to fix this problem.
java.lang.RuntimeException: No-args constructor for class net.openmob.mobileimsdk.server.protocal.Protocal does not exist. Register an InstanceCreator with Gson for this type to fix this problem.
      at com.google.gson.MappedObjectConstructor.constructWithNoArgConstructor(MappedObjectConstructor.java:64)
      at com.google.gson.MappedObjectConstructor.construct(MappedObjectConstructor.java:53)
      at com.google.gson.JsonObjectDeserializationVisitor.constructTarget(JsonObjectDeserializationVisitor.java:41)
      at com.google.gson.JsonDeserializationVisitor.getTarget(JsonDeserializationVisitor.java:56)
      at com.google.gson.ObjectNavigator.accept(ObjectNavigator.java:101)
      at com.google.gson.JsonDeserializationContextDefault.fromJsonObject(JsonDeserializationContextDefault.java:73)
      at com.google.gson.JsonDeserializationContextDefault.deserialize(JsonDeserializationContextDefault.java:51)
      at com.google.gson.Gson.fromJson(Gson.java:495)
      at com.google.gson.Gson.fromJson(Gson.java:444)
      at com.google.gson.Gson.fromJson(Gson.java:396)
      at com.google.gson.Gson.fromJson(Gson.java:372)
      at net.openmob.mobileimsdk.server.protocal.ProtocalFactory.parse(ProtocalFactory.java:35)
      at net.openmob.mobileimsdk.server.ServerCoreHandler.fromIOBuffer(ServerCoreHandler.java:455)
      at net.openmob.mobileimsdk.server.ServerCoreHandler.messageReceived(ServerCoreHandler.java:57)
      at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:690)
      at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:417)
      at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:47)
      at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:765)
      at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:74)
      at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
      at java.lang.Thread.run(Thread.java:722)