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SSH复习笔记(SSH框架学习笔记)

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SSH复习笔记(SSH框架学习笔记) 1 / 10 SSHЅלߤߌוЭ॒੢ By fydstudio@live.com ॕ▁଑Ӣ͵StrutsוЭ॒੢ Struts͹ׂйMVCગઋࠥڔङ Java Web FrameWorkͫݕ௤ Java WebڐՇବچ ͧModel͹ؘ࣫Џԇମ૾ङ JavaBean۪ EJBুўͺView͹▲ু JSPކўুۨͺControl͹ActionServletչ Servlet ͨ Strutsঐѝ͵ 1澝ActionServlet extends HttpServletͫݎݶબࡌ...

SSH复习笔记(SSH框架学习笔记)
1 / 10 SSHЅלߤߌוЭ॒੢ By fydstudio@live.com ॕ▁଑Ӣ͵StrutsוЭ॒੢ Struts͹ׂйMVCગઋࠥڔङ Java Web FrameWorkͫݕ௤ Java WebڐՇବچ ͧModel͹ؘ࣫Џԇମ૾ङ JavaBean۪ EJBুўͺView͹▲ু JSPކўুۨͺControl͹ActionServletչ Servlet ͨ Strutsঐѝ͵ 1澝ActionServlet extends HttpServletͫݎݶબࡌҒێͫ߿݇୆৥ކў struts-config.xmlИҫপ pathً ۅङқرબࡌсোثځङ actionث઻הࣲͧActionServletӫڏ actionث઻ͨ 2澝Action ոդث઻ ͫݎݶActionServletબࡌ લͫऀ JavaBeanثબࡌҟӀѽהࣲٷرրځҒێଏ֛োActionServlet 3澝ActionForm ث੮ԥރ݇ਘԈد੸澝௠ચ澝୍৥ 4澝Struts-config.xml ୆৥ކўͫث ActionFormͫރ࢛݇ͫAction љՃ૩૴૨ڬङ୆৥ͺৠॻ֢எԗҒێ૏࢛ङ୆ ৥ͺࠃ߫澝ݖўङ୆৥ StrutsٖҀࡗस͵ 1澝ڢ web serverկԈޞؘͫ҆ԗActionServletͫલऀҿ initސࡣͫserverପଋઆߤ struts-config.xmlކўੂՈ୆ ৥ҒێͧSAXઆߤͨͫ ر୆৥Ғێ؂ݹ֨՟य़୆৥ث઻И 2澝ClientՇଟ▲З*.DoङબࡌޞͫActionServlet ߲܇ ActionMapping୆৥Ғێҫপ pathًۅқͫӮލ ީի؂֨થ૨ڬબࡌͫif false͹404 error 3澝If TRUE͹Ӯލҫপީի߄ nameًۅͫif false͹ӫڏ Actionͫલऀ executeސࡣրځ Clientબࡌ 4澝If TRUE͹ӫڏثځङ ActionFormث઻ͧActionForm ث઻ю௳ઍӫڏ▲ࠩͨͫ ପଋՆذߑӲਘԈد੸ރ݇ͫӫڏ Actionͫલऀ executeސࡣրځ Clientબࡌ 2 / 10 ▁Ж੻֧࠭ Struts2ߤߌЗࣩדࣂלࠃӢНјЇӘЖࠖற 1 ؚۯঀӬ׷ԗ▲Зܶէ Servletؠ֘ͧ҆ײ Tomcatͨङબࡌ 2 ଑Зબࡌ৆ଋ▲঩ӧङଋࢡ֘ͧFilterͨ ͧ଑пଋࢡ֘И߄▲ЗՒҟ ActionContextCleanUp ङՕଣଋࢡ֘ͫ ଑Зଋࢡ֘ثй Struts2չҿѕࠃ߫ङதۨڮ߄ٮԉͫ҆ײ͹SiteMesh Pluginͨ 3 ݎवFilterDispatcherੴલऀ FͫilterDispatcherત୼ActionMapperߛӐؔ଑Зબࡌީի஬੽લऀ߮ЗAction 4 ײߧActionMapperӐؔ஬੽લऀ߮ЗActionͫFilterDispatcher܋બࡌङהࣲсো ActionProxy 5 ActionProxyପଋ Configuration Managerત୼ࠃ߫ङ୆৥ކўͫ܇ӱ஬੽લऀङActionঝ 6 ActionProxyӫڏ▲ЗActionInvocationङؘ҆澞 7 ActionInvocation ؘ҆҅ऀոդࠥڔߛલऀͫ֨લऀ Actionङଋ३ӹեͫࢄՃӱबҼܩ۬֘ͧIntercepterͨ ङલऀ澞 8 ▲ޚ Actionۼ੧؏ࡂͫActionInvocation િુ߿݇ struts.xml Иङ୆৥܇ӱثځङଏ֛ৈߧ澞ଏ֛ৈߧପٯ ީͧѸЉۈީͫЭՕ ਈީՐיङ▲З Action୥ͨ▲З஬੽ੴ੮ॐङ JSP۪ৱ FreeMarkerङࠥ࣍澞֨੮ॐङଋ३ИՕ љ҅ऀ Struts2 ࠃ߫И৐܈ङ߶঎澞֨଑Зଋ३И஬੽ࢄՃӱ ActionMapper Strutsࣩକ঴ ͧ1ͨͭ web.xmlކў П੽؏ۨث StrutsPrepareAndExecuteFilterङ୆৥ ؉ͫङؘૅީ▲Зଋࢡ֘ ؉ͫિુӬ׷ԗޅЗ Strutsࠃ߫ ٷЌהࣲ۱߄ङબࡌ澞 struts2 org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter ͧ2ͨͭ struts.xmlކў 3 / 10 ࠃ߫ङ߾ڶ୆৥ކўؼީ଑З௳ઍङ struts.xmlކў澞 Resultࣩூੜ६ֹފ dispatcherऀߛ૴է஼வͫପٯהࣲ JSP澞 ͧ3ͨͭ Actionङ୆৥ ▲З ActionՕљੴךࠩޥذ(Ց੽ action୆৥Иङ nameЉգ) name͹actionդ० class: ثځङঝङ૨ڬ method: લऀActionИङސࡣդ ױ߈Јକ঴ͧூੜ۝ਸ਼ executeݱࡄ ͧ4ͨͭ struts-default.xml ࠴ކўީ struts2ࠃ߫௳ઍԆૺङ୆৥ކў ؉ͫؔУд struts2▲п߾ڶbeanչܩ۬֘ ؉ͫѫਘԈԕխ(included) ӱ struts.xmlކўИ(ؘૅީପଋ)ͫٷО۩ћݕ҈д▲п߶ӕङ୆৥澞 ͧ5ͨͭ ҿ؉୆৥ކў struts.properties struts-plugin.xml һи namespace ֙Ж୪ਦتઊ͹request澝session澝application澝response StrutsЗܶрݤܨࣩГमݱړ͵ ސࡣ▲͹URLՀރ ސࡣи͹Form੮ԥ Action६З਑ڰ୪ਦتઊࣩݱࡄ͵ ސࡣ▲͹ள IoCͧݏӲՆ૴ Inversion of Controlͨސڔ HttpServletRequest request = ServletActionContext.getRequest(); HttpServletResponse response = ServletActionContext.getResponse(); ServletContext application = ServletActionContext.getServletContext(); HttpSession session = request.getSession(); ސࡣи͹ IoCސڔͫActionঝؘ࣫ثځङݎՍͫײڢ஬੽ږҵ Requestث઻ޞͫސࡣײЈ /forward/test.jsp /forward/test1.jsp struts.xmlИङӄؠ͹ test1 ୥ݎ֪֭ 4 / 10 public class MemberAction extends ActionSupport implements ServletRequestAware{ HttpServletRequest request; … public void setServletRequest(HttpServletRequest arg0) { this.request=arg0; } … } ҾєܯՌ͵ 1. ServletRequestAware 2. ServletResponseAware ܯՌݱࡄ͵ setServletResponse(HttpServletResponse response) 1. SessionAware ܯՌݱࡄ͵ setSession(Map session) ‹ ଑य़ސࡣੂڱङީ sessionङًۅޥذ(setAttribute) Strutsܶрய੩ࣩГमݱࡄ͵ ސࡣ▲͹ӯऀ JavaScript଒੧௠ચ ސࡣи͹୍ૺ ActionSupportИङސࡣ validate ױѽ১ؓТ▁Ж܊ۍ֗ͺ আ▲࠵͹ਘؔУ▲Зؘ࣫ InterceptorݎՍ۪ͧৱ৐܈ਘ AbstractInterceptorͨङঝ澞 আи࠵͹֨ strutx.xmlИࡨӆЇ▲࠵ИؔУङܩ۬֘澞 আІ࠵͹֨஬੽҅ऀङ Action ИږऀЇଚؔУङܩ۬֘ͫОдސҎЭՕرܩ۬֘ؔУО௳ઍङܩ۬֘ͫ଑߽֨Љ Ԇࣔ࠺גޢङەӑЈ۱߄ङ Actionୃੴ଑Зܩ۬֘ܩ۬澞 ܊ۍ֗ո૚ࢂࣩ֗ԙӯ ܩ۬֘ީׂй javaङՆذߑӲङͫ৲ଋࢡ֘ީׂйӡރ֛લ ଋࢡ֘҉૓й servletؠ֘ͫ৲ܩ۬֘Љ҉૓й servletؠ֘ ܩ۬֘Ցਈث actionબࡌ૜ҁऀͫ৲ଋࢡ֘өՕљثәЧ۱߄ङબࡌ૜ҁऀ ֘Օљઘ୼ actionЇЈކ澝қ߷ୌङث઻ͫ৲ଋࢡ֘Љਈͫଋࢡ֘П੽ث requestչ response଒੧הࣲ ֨ actionङࣿոյߊИͫܩ۬֘Օљךࠩੴલऀͫ৲ଋࢡ֘Ցਈ֨ؠ֘Ӭ׷ԗޞੴલऀ▲ࠩ 5 / 10 ࣐҄܊ۍࣩ֗Ѩ䎯 ௤ࢲࡴۅ Actionঝङऩ߶޾ԆЋࡨ. ґચдїुङՕયۅչ୍ऀۅ. ࡹડଋ३޾Ԇؠޣ MVC੦ਗ਼ࠆړࡘ߅͵ ڠӲر applicationङ૿ҵͫהࣲչ૿ӟӣڐͫӣОModel-View-Control Model͹Џԇރ݇չЏԇମ૾ֺͫࠥਈОךЗં֣ݕ҈ރ݇ͫݕ௤ځऀՕ୍ऀۅ View͹ં֣ީЊऀۯслङउவͫުॐबҼރ݇ٷݎݶऀۯङ૿ҵރ݇ͫં֣Љ଒੧ѠѾؘஎङЏԇהࣲ߲ͫતֺࠥङ ЏԇࣙہͫѸީЉਈ޾ݷֺࠥͫݎݶֺࠥהࣲङҒێͫԈہުॐৈߧ Control͹ݎݶऀۯબࡌͫٷલऀثځङֺࠥչં֣րځબࡌ Ѩ䎯͵1澝ךЗં֣ਈһц▲Зֺࠥͫݕ௤ځऀङՕ୍ऀۅ 2澝ֺࠥީਘԕխङͫչં֣澝ݏӲ֘ґܴबثࣞॹͫՕљސҎ֪ݷՊރ݇كչЏԇମ૾ؘ࣫ͫߣۨਧױङߠ凥 ՠ঩৏ 3澝ݏӲ֘ݕ௤д applicationङՕ୆৥ֺչࢲࡴۅ ॕз଑Ӣ͵HibernateוЭ॒੢ Hibernate͵આӐރ݇ڀٵՖङ१ࠛͫث JDBC APIҁૹ୏঴ङد੸ͫORMۃ۝ͧث઻----Ҽ঩ֺޥذͨ ьСފܕРԖ P͵ersistence ͫؼީ܋ӄ؂Иङރ݇ґ؂ӱ्दЇ҈љե۱ऀܴͫ Сԗङؘ࣫ଋ३םךପଋރ݇ڀߛ؏ۨ澞 تઊһॸކدͣObject Relational Mappingͫএ०ORMͤ ORM ީ▲य़ОдઆӐவէث઻ЊҼ঩ރ݇ڀ؂֨ङлЉԙ୆ङ࣫઻ङ܉ߐ澞এԥङપͫORM ީପଋ҅ऀݔଚث ઻չރ݇ڀФ୿ޥذङҫރ݇ͫر java ३پИङث઻ਘԈܴСԗӱҼ঩ރ݇ڀИ澞ߎૅЇؼީرރ݇ђ▲य़ڥڔ૴݅ 6 / 10 ӱՐי▲य़ڥڔ澞 ј஄զتઊࣩڤړ؎ۉتݤܨٿࣩݒҀ͵ 1澝ث઻չރ݇ڀ੮ङޥذҼ঩ͺ 2澝ث઻ङًۅչ੮ङ؁࠼஬੽ڏॹޥذҼ঩ͺ 3澝ث઻Ф୿ثځރ݇ڀ੮Ф୿ङޥذҼ঩ hibernate.cfg.Xml͵ї੮ޅЗ application Ҷق୆৥ͫثځ▲Зރ݇ڀକݎҒێङ୆৥ͺ୆৥ކ ўИԕխдପଋDialectݎՍؘ࣫ރ݇ڀސઈߑӲͺ Pojo͹ܴСԗङ▲Зث઻ͫঝѷй java Vo ث઻ͺpojo ঝڷீؘ࣫ Serializable ݎՍͫիөپӧԗڑٯͺ஬੽ݕ҈௳ ઍङޗՀߣଭӡރͺ ܕРԖࢩ㓆ࣩՉԖ͵ЛޞࣙہܴͫСԗࣙہͫ࢕ख़ࣙہͺ SessionFactory͵୍୏঴৙؂ͧи঴৙؂ͨͫ ԕխд hibernate۱߄ޥذކўङ࢛३پͺثйރ݇ڀ੮ङׂߎݱҁધՏ ଒੧௄ؔУͺҭڢ applicationչ DBФ୿ङїࣲͫ▲Зރ࢛݇юثځ▲З sessionfactoryͫݵܴٷՇઘ୼ͫݵܴি३ ؍Ҷͺ Session͵ૹ୏঴৙؂ͧ▲঴৙؂ͨͺ ৙؂дڢࠩݱҁङ pojoث઻ ͺӗص଍੧ޞ୿ͫݕ௤ۅਈͺ৙؂ hibernateࣿۨ ङ sqlધՏͺளি३؍ҶͺsessionЉਈһцͫ࠿ࠩݱҁ஬੽ڐկҼ୻ sessionͺ डં pojoث઻ङࣙہͫڢ pojoث઻ރ݇ՇࣿՊԗͫhibernateਘԈ޾ޏރ݇ڀґચ pojoչ DBգ࠵ͺ Session ন؁ࣩЅלҀ࣐͵ 1ͫӗصރ݇ڀङઘ୼ைࣤͫݕ௤ઘ୼ۅਈ澞 2ͫґચ৙؂Иङث઻Њރ݇ڀգ࠵ͫѹй৙؂Иङث઻०ОܴСԗث઻澞 3ͫڢܴСԗث઻Ф୿؂֨Ҽ৻ޞͫSession ґચЉӟ࣫ث઻֣ङ࠸୧澞 SessionѪੱ Session session = sessionFactory.openSession(); Session session = sessionFactory.getCurrentSession(); session.beginTransaction(); //ރ݇ڀݱҁ session.getTransaction().commit(); Hibernateକ঴ࠖற আ▲࠵͹ӫڏ▲Зؘѽঝͫԕխ͹ثځङؘѽًۅ澝௳ઍङߣଭӡރͧޗՀރङߣଭӡރ 澝ͨ࠿Зًۅङ getterչ setterސࡣ 7 / 10 আи࠵͹ӫڏޥذކў(Student.hbm.xml) ͜ࡉڿ▁Їԅ९؀Ѽ <--! Lazy ڌ૥ԅૉ --> <--! type ՔјЈӉͧॸঞѪ১ԇ੫ӯ --> <--! generatorОି࣏ۉज़ࣛ --> <--! Id࣐޼ؓТОି�Րৗޥ▁Ж --> <--! ױ߈୻ੌՔј࡮ԅmany-to-oneۋ one-to-manyॗ --> আІ࠵͹ؔУ Hibernate୆৥ކў ѹ৥͹֨ாऩङ srcऩڣЈͫӫڏ▲Зځऀ Hibernateङ୆৥ކўͫHibernate.cfg.xml ކدݧѝࣩԅҴ ߂եͫࡹડ଑З Hibernateځऀ ੇૉتઊ͵ load(ͨސࡣ Object loadͧClass entityClass,Serializable idͨ ऀйђރ݇ڀԆૺܶؔङܴСԗث઻ӱ Session৙؂Иͫױ߈ܗࣩؓ੢ڢЈ؁֧Ө۳Ӟڐٮͫ଑Њ getͧ ͨސ ࡣЉգ澞 getͧͨސࡣ Object getͧClass entityClass,Serializable idͨ ђރ݇ڀԆૺܶؔङܴСԗث઻ӱ Session৙؂ИͫײߧܶؔङઓڣЉ؂֨өଏ֛ null澞 ॕЅ଑Ӣ͵SpringוЭ॒੢ Spring͵ީ▲Зڐ࢛ङݏӲՆ૴(Inversion of Control ,IoC)չவէӤவ(AOP)ङૹ୏঴ؠ֘ࠃ߫ͫ؉ङП੽ऩڱީএ ԗѣЏڐՇ澞 ܰӱՅૃ IOCͣ Inverse of Controlͤ͵ Spring߾ڶࠢھͺؘ ࣫дث઻Ф୿Ҽ঩ङՆ૴ ͫث઻Ф୿ङफݎ҉૓Ҽ঩ं IOC ؠ֘ݏӲͺIOCОગઋࠥڔЇङࠢھͫӣОDependency Injectionͧ҉૓ࡨҵͨչ Service Locatorͧ߆ԇؔѹ֘ͨ फ़Ԥࣩ੣͹ंؠ֘ߛ঒ࣲث઻Ф୿ङ҉૓Ҽ঩ͧ৲Љީث઻ߎ૯ߛ঒ࣲͨͫ ؼՒȔݏӲՆ૴ȕ۪Ȕ҉૓ࡨҵ” ஄զӣ஄঩स AOPͣAspect oriented programingͤ͵ Springङ߾ڶࣔ਩ͺӤவ͹їࣲث઻Оऱؘث઻ݕ҈ङ߮З ߆ԇйЏԇ߾ڶङ௅ֿ߆ԇͺ жԆ͵Խ׿ۅͧAtomicͨͫ ▲ਚۅͧConsistencyͨͫ ஜख़ۅͧIsolationͨͫ ܴСۅͧDurabilityͨ Struts ո Springࣩঐۉ�ࠖற͵ আ▲࠵ Ԇૺ Jarԕͧstruts2-spring-plugin-2.1.8.jar澝spring.jar澝commons-logging.jarͨ আи࠵ ୆৥ Springङडծ֘ͧ֨web.xmlИͨ,િુ կԈ Springͫڐ׷ٗҁ org.springframework.web.context.ContextLoaderListener 8 / 10 ۪ৱ୆৥ ServletͧДय़ސࡣѠଣ▲य़ͨ context org.springframework.web.context.ContextLoaderServlet আІ࠵͹҉ࣁ Springङઁөͫ୆৥बҼङ beanؔУ澞 ҆ײ͹֨ RegisterBean.xmlИࢍԆ RegisterActionঝङ beanؔУ আ֚࠵͹ғݷԽߛङ Struts2ИҼй Actionङֲࠥ୆৥ކўͫر ActionИङ classًۅङқґܴչ SpringИङ ؔУङ beanङ idًۅङқґܴ▲ਚ ---------- ---------- /sshLabwork1/register_xhtml.jsp /sshLabwork1/register_detail_xhtml.jsp আм࠵͹ࢍԆ▲З௳ઍ SpringԆૺކўApplicationContext.xml,࠴ކўङ௳ઍѹ৥֨WEB-INFऩڣЈ //ڢથކўЉ֨௳ઍѹ৥ޞͫ֨web.xmlИગ৥▲ЗײЈՀރ contextConfigLocation /WEB-INF/classes/spring/applicationContext.xml 9 / 10 ॕ֙଑Ӣ͵SSHߤߌࣼһӃ؟ log4j֧WebڏՆЗࣩڀ࣐ log4jީ▲Зਈלٮԉ३پմ܋Ғێ૿ӟӱЉգ׽ѐङٗӀ澞؉Օљر૿ӟङҒێӣۨЉգङ঴ӰͫՕљਘؔУࠀ ڔԗ૿ӟङҒێ澞 Log4j࣒ЅЖଜੌࣩঐѝ߄ۉ͵ Logger -ޙںҒێङઓڣ֘ Appender -ޙںҒێङ૿ӟऩङ֪ Layout -ޙںҒێङ૿ӟࠀڔ澞 Log4j▁Һ؁֧�ЖׁޯࣩݺڹঃӯͧёѹӰள͵TRACE澝DEBUG澝INFO澝WARN澝ERRORљՃ FATAL澞 Log4jକ঴ࠖற͵ আ▲࠵͹۱஬ङ jarކў ږҵ log4jबځ࣍ߎङ jarކўՃҿҼ৻ކўͫ҆ײ commons-logging.jarչ log4j-1.2.15.jar আи࠵͹৚ӊ▲З୆৥ކў ѹ৥͹ݹ֨ srcЈͫୂ০ޞ֨ classesऩڣЈ ކўդ͹ ׂй xmlङ log4j.xml ׂйًۅކўङ log4j.properties আІ࠵͹֨їुИ૿ӟҒێ Logger logger = Logger.getLogger(this.getClass().getName()); logger.warn("----helloo json"); 10 / 10 AjaxͧAsynchronous JavaScript and XML֧ͨWebڏՆЗࣩڀ࣐ Љީ▲Зޏङ܉ߐͫзؘЇͫ؉ީ▲пޛ߄ۨࣅङ܉ߐљ▲य़Ҷޏ޾Ԇڠםङސڔޅՠ֨▲૜澞 Ajaxࣩһି۪ޱ͵ ҅ऀ XHTML(HTML)չ CSSߣڏ߶ӕԗङيॐك ҅ऀ DOM଒੧Ԉہުॐչсл ҅ऀ XMLչ XSLT଒੧ރ݇с݅չݱ঺ ҅ऀ XMLHttpRequestڑ࠵ੂՈރ݇ ҅ऀ JavaScriptر۱߄ҫপেؔ֨▲૜ Ajaxڀ࣐सٽࣩѨԍ֧и͵ 1. ପଋڑ࠵ࠥڔͧڐࠖՆ૮੻࠭ͨͫݕԟдऀۯѽ௠ 2. ѩԗдࡻઃ֘չ߆ԇ֘Ф୿ङѮ૿ͫӗصЉڷ੽ङރ݇ڪଏͫӗصд٫ءԩऀ 3. Ajaxږݲؚ֨ۯঀ଍੧ͫ܈ܛд▲ୂӣߎߛं߆ԇ֘܈ܛङٗҁͫђ৲ӗصдםऀۯ୏Јङ߆ԇ֘િૺ澞 XMLHttpRequestتઊࣩݱࡄي㓬ͧXMLHttpRequestث઻ީ Ajax ࣩߟڵͨ ݱࡄ͵ open()͹ڏॹӱ߆ԇ֘ङޏબࡌ send()͹է߆ԇ֘Շଟબࡌ onreadystatechange͹֛ܶؔલӡރ readyState͹ݕ҈ڢӹ HTML ङؼ৑ࣙہ status͹߆ԇ֘րځङࣙہїु responseText͹߆ԇ֘ଏ֛ङબࡌրځކߎ ًۅ પޢ readyState ث઻ࣙہ 0=ߌӬ׷ԗͺ 1=યՈИ 2=ٝયՈͺ3=слИͺ 4=؏ۨ responeText ߆ԇ֘ଏ֛ӄؠङކߎ responeXML ߆ԇ֘ଏ֛ङ XMLކࠈث઻ status ߆ԇ֘ଏ֛ङࣙہुͫײ 404ͫ200ঈ 200͹࠳ٯͺ404͹࡚߄܇ӱކў۪ऩڣͺ500͹߆ԇ֘ӄୂ୪ન statusText ߆ԇ֘ଏ֛ङࣙہुङކߎҒێ
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