課件tomcat在世界里一個server代表整個容器Tomc

IntheTomcatworld,aServerrepresentsthewholecontainer.TomcatprovidesadefaultimplementationoftheServerinterface.,andthisisrarelycustomizedbyusers.tomcat的世界里,server代表整個容器.Tomcatorg.apache.catalina接口的實現(xiàn).用戶很少AServiceisanintermediatecomponentwhichlivesinsideaServerandtiesoneormoreConnectorstoexactlyoneEngine.TheServiceelementisrarelycustomizedbyusers,asthedefaultimplementationissimpleandsufficient:Serviceinterface.Service是一個中間件,Server的內(nèi)部,ConnectorsEngine上.默認的實現(xiàn)已經(jīng)足夠用了.org.apache.catalina.Service接口的一個實現(xiàn).A"Service"isacollectionofoneormore"Connectors"thatshareasingle一個Service是一個或者多個Connectors的集合，這些個Connectors共個容器AnEnginerepresentsrequestprocessingpipelineforaspecificService.AsaServicemayhavemultipleConnectors,theEnginereceivedandprocessesallrequestsfromtheseconnectors,handingtheresponsebacktotheappropriateconnectorfortransmissiontothe .TheEngineinterfacemaybeimplementedtosupplycustomEngines,thoughthisis 一個EngineService的請求處理的管道.Service可以有多個Connectors,Engine接收并且Connectors過來的所有的請求.connector并發(fā)送給客戶端.org.apache.catalina.InterfaceEngineEngines,雖然一般不需要這樣做NotethattheEnginemaybeusedforTomcatserverclusteringviathejvmRouteparameter.ReadtheClusteringationformoreinformation.AHostisanassociationofanetworkname,e.g. ,totheTomcatserver.AnEnginemaycontainmultiplehosts,andtheHostelementalsosupportsnetworkaliasessuchas UsersrarelycreatecustomHostsbecausetheStandardHostimplementationprovidessignificantadditionalfunctionality.一個Host將一個 和tomcat聯(lián)系起來.一個Engine可以包含多個hosts,并且一個Host還支持網(wǎng)絡(luò)別名(例如 ).用戶很少去實現(xiàn)一個org.apache.catalina.InterfaceHost接口,因為AConnectorhandlescommunicationswiththe .TherearemultipleconnectorsavailablewithTomcat,allofwhichimplementtheConnectorinterface.TheseincludetheCoyoteconnectorwhichisusedformostHTTPtraffic,especiallywhenrunningTomcatasastandaloneserver,andtheJK2connectorwhichimplementstheAJPprocotolusedwhenconnectingTomcattoanApacheHTTPDserver.Creatingacustomizedconnectorisasignificanteffort.Connector處理和客戶端的通信.tomcatconnectors.connectorsConnector接口connector是非常復(fù)雜的AJP是為TomcatHTTPTomcat服務(wù)器集成中，讀者可以不必關(guān)心AJP協(xié)議的細節(jié)。關(guān)于AJP的知識也可以參考IISApache服務(wù)器。TomcatServlet/JSP組件。HTTP服務(wù)器之間通過專門的插件來通信。<Connectorport="8080"protocol="HTTP/1.1"connectionTimeout="20000"redirectPort="8443"<Connectorport="8009"protocol="AJP/1.3"redirectPort="8443"第接器8080端口，負責建立HTTP連接。在通過瀏覽器Tomcat服務(wù)器的Web應(yīng)用時，使用的第二個連接器8009端口，負責和其他的HTTP服務(wù)器建立連接。在把Tomcat與其他HTTP服務(wù)器集成時，TomcatJKTomcatHTTPJKHTTP服務(wù)HTTP服務(wù)器，TomcatJKWindowsApacheHTTPLinux（RedHet）ApacheHTTP服務(wù)器集成：mod_jk.so-ap2.0.46-rh72..46-IISAJPTomcatHTTP關(guān)于AJP的知識也可以參考mon/AJPv13.html如果兩個Tomcat服務(wù)器都在同一臺機器上運行，則至少應(yīng)該對其中一個Tomcat服務(wù)器的以上3個端都進AContextrepresentsawebapplication.AHostmaycontainmultiplecontexts,eachwithauniquepath.TheContextinterfacemaybeimplementedtocreatecustomContexts,but