//t.printStackTrace();
t=CRMUtils.getCaused(t);
if(t instanceof ServerThrowException){
return (InteractionException) t;
}if(t instanceof ConnectException){
return new CannotConnectException("Connect refused", 2);//连接被拒绝
}else if(t instanceof SocketTimeoutException){//connect timed out 21 Read timed out 14
return new CannotConnectException("Connect timed out",t, 1);//连接超时//网络不畅通
}else if(t instanceof NoRouteToHostException){
return new CannotConnectException("No routeto host", 0);//没有到主机的路由
}else if(t instanceof SocketTimeoutException){
return new CannotConnectException("Read timed out", 1);//读取数据超时
}else if(t instanceof FileNotFoundException){
return new ServerThrowException("Cannot connect to Server",t, 0);//连接失败，导致此异常极有可能服务端异常405
}else{
return new CannotConnectException("连接失败", t,0);
}
}