extendsIFloodlightService>>（）;
l.add（IFloodlightProviderService.class）;
returnl;
}
@Override
publicvoidinit（FloodlightModuleContextcontext）
throwsFloodlightModuleException{
this.floodlightProvider=context.getServiceImpl（IFloodlightProviderService.class）;
this.counterStore=context.getServiceImpl（ICounterStoreService.class）;
logger=LoggerFactory.getLogger（TrafficAnalyser.class）;
}
@Override
publicvoidstartUp（FloodlightModuleContextcontext）{
floodlightProvider.addOFMessageListener（OFType.PACKET_IN,this）;
}
@Get（"json"）
publicMapretrieve（）{
StringcounterTitle=
（String）getRequestAttributes（）.get（"counterTitle"）;
Mapmodel=newHashMap（）;
CounterValuev;
if（counterTitle.equalsIgnoreCase（"all"））{
Mapcounters=this.counterStore.getAll（）;
if（counters!
=null）{
Iterator>it=
counters.entrySet（）.iterator（）;
while（it.hasNext（））{
Entryentry=it.next（）;
StringcounterName=entry.getKey（）;
v=entry.getValue（）.getCounterValue（）;
if（CounterValue.CounterType.LONG==v.getType（））{
model.put（counterName,v.getLong（））;
}elseif（v.getType（）==CounterValue.CounterType.DOUBLE）{
model.put（counterName,v.getDouble（））;
}
}
}
}else{
ICountercounter=this.counterStore.getCounter（counterTitle）;
if（counter!
=null）{
v=counter.getCounterValue（）;
}else{
v=newCounterValue（CounterValue.CounterType.LONG）;
}
if（CounterValue.CounterType.LONG==v.getType（））{
model.put（counterTitle,v.getLong（））;
}elseif（v.getType（）==CounterValue.CounterType.DOUBLE）{
model.put（counterTitle,v.getDouble（））;
}
}
returnmodel;
}
protectedvoiddoInit（）throwsResourceException{
super.doInit（）;
counterStore=
（ICounterStoreService）getContext（）.getAttributes（）.
get（ICounterStoreService.class.getCanonicalName（））;
}
@Override
publicnet.floodlightcontroller.core.IListener.Commandreceive（IOFSwitchsw,OFMessagemsg,FloodlightContextcntx）{
System.out.println（retrieve（）.toString（））;
returnCommand.CONTINUE;
}
}
这歌代码没有报错，可是，控制器只能连接到ovs,在mininet中用hosts去pingall的时候就会一下连接，一下断开，无法ping通。
于是就简化了一下代码，去掉觉得有bug的代码，抛出的异常是没有实例化；
代码如下：
packageedu.wzu.steve.trafficanalyser;
importjava.util.ArrayList;
importjava.util.Collection;
importjava.util.HashMap;
importjava.util.Iterator;
importjava.util.Map;
importjava.util.Map.Entry;
importorg.restlet.resource.ResourceException;
importorg.restlet.resource.ServerResource;
importnet.floodlightcontroller.counter.CounterValue;
importnet.floodlightcontroller.counter.ICounter;
importorg.restlet.resource.Get;
importnet.floodlightcontroller.core.FloodlightContext;
importnet.floodlightcontroller.core.IFloodlightProviderService;
importnet.floodlightcontroller.core.IOFMessageListener;
importnet.floodlightcontroller.core.IOFSwitch;
importnet.floodlightcontroller.core.module.FloodlightModuleContext;
importnet.floodlightcontroller.core.module.FloodlightModuleException;
importnet.floodlightcontroller.core.module.IFloodlightModule;
importnet.floodlightcontroller.core.module.IFloodlightService;
importnet.floodlightcontroller.counter.ICounterStoreService;
importorg.openflow.protocol.OFMessage;
importorg.openflow.protocol.OFType;
importorg.slf4j.Logger;
importorg.slf4j.LoggerFactory;
publicclassTrafficAnalyserextendsServerResourceimplementsIOFMessageListener,IFloodlightModule{
protectedICounterStoreServicecounterStore;
protectedIFloodlightProviderServicefloodlightProvider;
protectedstaticLoggerlogger;
@Override
publicStringgetName（）{
//TODOAuto-generatedmethodstub
returnTrafficAnalyser.class.getSimpleName（）;
}
@Override
publicbooleanisCallbackOrderingPrereq（OFTypetype,Stringname）{
//TODOAuto-generatedmethodstub
returnfalse;
}
@Override
publicbooleanisCallbackOrderingPostreq（OFTypetype,Stringname）{
//TODOAuto-generatedmethodstub
returnfalse;
}
@Override
publicCollectionextendsIFloodlightService>>getModuleServices（）{
//TODOAuto-generatedmethodstub
returnnull;
}
@Override
publicMapextendsIFloodlightService>,IFloodlightService>getServiceImpls（）{
//TODOAuto-generatedmethodstub
returnnull;
}
@Override
publicCollectionextendsIFloodlightService>>getModuleDependencies（）{
//TODOAuto-generatedmethodstub
CollectionextendsIFloodlightService>>l=
newArrayListextendsIFloodlightService>>（）;
l.add（IFloodlightProviderService.class）;
returnl;
}
@Override
publicvoidinit（FloodlightModuleContextcontext）
throwsFloodlightModuleException{
this.floodlightProvider=context.getServiceImpl（IFloodlightProviderService.class）;
this.counterStore=context.getServiceImpl（ICounterStoreService.class）;
logger=LoggerFactory.getLogger（TrafficAnalyser.class）;
}
@Override
publicvoidstartUp（FloodlightModuleContextcontext）{
floodlightProvider.addOFMessageListener（OFType.PACKET_IN,this）;
}
@Get（"json"）
publicMapretrieve（）{
Mapmodel=newHashMap（）;
CounterValuev;
Mapcounters=this.counterStore.getAll（）;
if（counters!
=null）{
Iterator>it=
counters.entrySet（）.iterator（）;
while（it.hasNext（））{
Entryentry=it.next（）;
StringcounterName=entry.getKey（）;
v=entry.getValue（）.getCounterValue（）;
if（CounterValue.CounterType.LONG==v.getType（））{
model.put（counterName,v.getLong（））;
}elseif（v.getType（）==CounterValue.CounterType.DOUBLE）{
model.put（counterName,v.getDouble（））;
}
}
}
returnmodel;
}
protectedvoiddoInit（）throwsResourceException{
super.doInit（）;
counterStore=
（ICounterStoreService）getContext（）.getAttributes（）.
get（ICounterStoreService.class.getCanonicalName（））;
}
@Override
publicnet.floodlightcontroller.core.IListener.Commandreceive（IOFSwitchsw,OFMessagemsg,FloodlightContextcntx）{
System.out.println（retrieve（）.toString（））;
returnCommand.CONTINUE;
}
}
用
sudomn--toposingle,3--mac--switchovsk--controller=remote,ip=10.0.2.15,port=6633
建立hosts去pingall
eclipse中控制台出来的信息截图如上，完整信息如下：
00:
58:
01.133INFO[n.f.c.m.FloodlightModuleLoader:
main]Loadingdefaultmodules
00:
58:
01.846INFO[n.f.c.i.Controller:
main]ControllerrolesettoMASTER
00:
58:
01.869INFO[n.f.c.i.Controller:
main]Flushswitchesonreconnect--Disabled
00:
58:
02.968ERROR[o.s.s.i.c.DelegatingCCProvider:
main]Failedtoinitializeproviderorg.sdnplatform.sync.internal.config.SyncStoreCCProvider
org.sdnplatform.sync.error.PersistException:
Couldnotinitializepersistentstorage
atorg.sdnplatform.sync.internal.store.JavaDBStorageEngine.（JavaDBStorageEngine.java:
106）~[bin/:
na]
atorg.sdnplatform.sync.internal.StoreRegistry.register（StoreRegistry.java:
116）~[bin/:
na]
atorg.sdnplatform.sync.internal.SyncManager.registerPersistentStore（SyncManager.java:
184）[bin/:
na]
atorg.sdnplatform.sync.internal.config.SyncStoreCCProvider.init（SyncStoreCCProvider.java:
85）~[bin/:
na]
atorg.sdnplatform.sync.internal.config.DelegatingCCProvider.init（DelegatingCCProvider.java:
37）
升级会员 