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54英文原文SSHisSpring+struts+Hibernateanintegrationframework,isoneofthemorepopularaWebapplicationframework.SpringLightweight--fromtwoaspectsintermsofsizeandcostoftheSpringarelightweight.AcompleteSpringframeworkcaninonesizeonly1MBmultipleJARfilesreleased.AndSpringrequiredprocessingoverheadisnotworthmentioning.Inversionofcontrol--Springthroughaknownasinversionofcontrol(IoC)technologypromotesloosecoupling.WhenusingIoC,anobjectdependonotherobjectswillbepassedinthroughpassiveway,butnottheobjectofitsowntocreateorfindadependentobject.YoucanthinkofIoCandJNDIinstead--nottheobjectfromthecontainerfordependent,butindifferentcontainerobjectisinitializedobjectrequestonowninitiativewillrelyontoit.Aspectorientedprogramming--Springprovidesrichsupport,allowedbyseparatingtheapplication'sbusinesslogicandsystemlevelservicecohesiondevelopment.Applicationobjectonlyrealizetheyshoulddo--completebusinesslogic.Theyarenotresponsibleforothersystemlevelconcerns.Container--Springcontainsandmanagementapplicationobjectconfigurationandlifecycle,inthissense,itisakindofcontainer,youcanconfigureeachofyourbeantobecreated--Basedonareconfigurableprototype(prototype),yourbeancancreateasingleinstanceoreverytimewhentheyareneededtogenerateanewexamples--andhowtheyareinterrelated.However,SpringshouldnotbeconfusedwiththetraditionalheavyweightEJBcontainer,theyareoftenlargeandunwieldy,difficulttouse.StrutsStrutsonModel,ViewandControllerareprovidedwiththecorrespondingcomponents.ActionServlet,thisisStrutscorecontroller,responsibleforinterceptingtherequestfromtheuser.Action,thisclassistypicallyprovidedbytheuser,thecontrollerreceivesfromtheActionServletrequest,andaccordingtotherequesttocallthemodelbusinesslogicmethodtoprocessingtherequest,andtheresultswillbereturnedtotheJSPpagedisplay.55PartModelByActionFormandJavaBean,whereActionFormusedtopackagetheusertherequestparameters,packagedintoaActionFormobject,theobjecttobeforwardedtotheActionActionServletActionActionFrom,accordingtowhichtherequestparametersproce
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