Spring & Spring Boot 基本のキ / Spring & Spring Boot for Beginner

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Spring & Spring Boot جຊͷΩ 2019/02/23 #javajo @otty_375

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Who am I? • ͍͚(@otty_375) • Javaঁࢠ෦ӡӦϝϯόʔ • Springྺ͸1೥൒΄Ͳ

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SpringΛॳΊͯ৮Δํʁ

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ࠓ೔ͷΰʔϧ • ॳΊͯͷํ • SpringΛ஌ͬͯ΋Β͏ • ܦݧ͕͋Δํ • ཧղΛਂΊͯ΋Β͏ ʘࠓޙSpringΛֶश͢Δ্Ͱͷ౔୆ʹͳΕ͹ʗ

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Agenda • Spring Projectͱ͸ • Spring Core • Spring MVC • Spring Boot • ·ͱΊ

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ϑϨʔϜϫʔΫͱ͸

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ϑϨʔϜϫʔΫͱ͸ • γεςϜ։ൃͰසൟʹ࢖ΘΕΔॲཧΛఏڙͯ͠ ͘ΕΔ΋ͷ • σʔλΞΫηεɺηογϣϯ؅ཧɺೝূ etc. • ར༻͢Δ͜ͱͰϏδωεϩδοΫʹूதͰ͖Δ

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Spring Project

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Spring Project • Java޲͚ͷΦʔϓϯιʔεϑϨʔϜϫʔΫ • ෳ਺ͷίϯϙʔωϯτͷ૊Έ߹ΘͤͰͰ͖ͯ ͍Δ • ެࣜαΠτ https://spring.io/

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Spring Project ͷҰ෦ • Spring Framework • Spring Data • Spring Security • Spring Batch • Spring Boot

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Spring Framework ͷҰ෦ • Spring Core • Dependency Injection (DI) • Aspect Oriented Programming (AOP) • Spring MVC • Spring Testing

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ࠓճѻ͏෦෼ • Spring Core • Dependency Injection (DI) • Spring MVC • Spring Boot

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Spring Core

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Dependency Injection (DI) • ௚༁͢Δͱʮґଘੑͷ஫ೖʯ • ར༻͍ͨ͠ΠϯελϯεΛར༻͢ΔଆͰੜ੒ ͢ΔͷͰ͸ͳ͘ɺ֎͔Βઃఆͯ͋͛͠Δ͜ͱ • ʢ஫ҙʣDIࣗମ͸Spring͚ͩͷػೳͰ͸ͳ͍

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DIͷྲྀΕ 1. Beanఆٛͨ͠ΒDIίϯςφʹొ࿥͞ΕΔ 2. ར༻͢ΔଆͷΫϥεͰBeanΛΠϯδΣΫγϣϯ ͯ͠࢖͏

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DIͷྲྀΕ 1. Beanఆٛͨ͠ΒDIίϯςφʹొ࿥͞ΕΔ 2. ར༻͢ΔଆͷΫϥεͰBeanΛΠϯδΣΫγϣϯ ͯ͠࢖͏

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Beanͱ͸ • Spring͕؅ཧ͢ΔΠϯελϯεͷ͜ͱ

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Beanఆٛͱ͸ • Springʹ؅ཧͯ͠΄͍͠Πϯελϯεͩͱ Θ͔ΔΑ͏ʹఆٛ͢Δ͜ͱ

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Beanఆٛͷํ๏3ͭ • XMLϕʔε • Java Conﬁgϕʔε ࠓճ͸͜Ε • Ξϊςʔγϣϯϕʔε ࠓճ͸͜Ε

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Java ConﬁgϕʔεͷྲྀΕ 1. @ConﬁgurationΛ͚ͭͨJavaΫϥεΛ༻ҙ 2. ͦͷΫϥεʹ@BeanΛ͚ͭͨϝιουΛ࡞੒ 3. ͦͷϝιου͸Beanͱͯ͠ఆ͍ٛͨ͠ΫϥεΛ newͨ͠΋ͷΛ໭Γ஋ʹͱΔ ʘ۩ମྫ͸ϋϯζΦϯύʔτʹͯʗ

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ΞϊςʔγϣϯϕʔεͷྲྀΕ 1. Beanొ࿥͍ͨ͠ΫϥεͩͱΘ͔ΔΑ͏ͳ໨ҹ ʢ=ΞϊςʔγϣϯʣΛ͚ͭΔ • Ξϊςʔγϣϯͷछྨ͸৭ʑ͋Δɹ @Controller, @Service, @Repository, @Component, etc. ʘ۩ମྫ͸ϋϯζΦϯύʔτʹͯʗ

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DIͷྲྀΕ 1. Beanఆٛͨ͠ΒDIίϯςφʹొ࿥͞ΕΔ 2. ར༻͢ΔଆͷΫϥεͰBeanΛΠϯδΣΫγϣϯ ͯ͠࢖͏

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DIίϯςφͱ͸ • BeanΛొ࿥͢Δ৔ॴͷ͜ͱ

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DIίϯςφొ࿥ͷྲྀΕ 1. Spring͸ىಈ࣌ʹBeanఆٛͷ໨ҹ͕͍ͭͨ ΋ͷΛ୳͢ 2. ݟ͔ͭͬͨΒDIίϯςφʹొ࿥͢Δ 3. ໨ҹΛ୳͢͜ͱΛίϯϙʔωϯτεΩϟϯ ͱ͍͏

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DIίϯςφొ࿥ͷਤ ᶃ %*ίϯςφ ʢ"QQMJDBUJPO$POUFYUʣ @Service 4BNQMF4FSWJDF Ϋϥε #FBO 4BNQMF4FSWJDF ։ൃऀ͕ΞϊςʔγϣϯΛ͚ͭͯ Beanఆٛ͢Δ

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DIίϯςφొ࿥ͷਤ ᶄ %*ίϯςφ ʢ"QQMJDBUJPO$POUFYUʣ @Service 4BNQMF4FSWJDF Ϋϥε #FBO 4BNQMF4FSWJDF Spring͕ίϯϙʔωϯτΩϟϯͯ͠ Beanର৅Λ୳͢

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DIίϯςφొ࿥ͷਤ ᶅ %*ίϯςφ ʢ"QQMJDBUJPO$POUFYUʣ @Service 4BNQMF4FSWJDF Ϋϥε #FBO 4BNQMF4FSWJDF Spring͕BeanΛDIίϯςφʹ ొ࿥͢Δ

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DIͷྲྀΕ 1. Beanఆٛͨ͠ΒDIίϯςφʹొ࿥͞ΕΔ 2. ར༻͢ΔଆͷΫϥεͰBeanΛΠϯδΣΫγϣϯ ͯ͠࢖͏

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ΠϯδΣΫγϣϯͱ͸ • Ϋϥεؒͷґଘؔ܎Λ֎͔ΒೖΕͯ͋͛Δ ͜ͱ

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ΠϯδΣΫγϣϯͷํ๏3ͭ • ϑΟʔϧυΠϯδΣΫγϣϯ • ηολʔΠϯδΣΫγϣϯ • ίϯετϥΫλΠϯδΣΫγϣϯ ࠓճ͸͜Ε

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ίϯετϥΫλΠϯδΣΫγϣϯ 1. BeanΛར༻͍ͨ͠ΫϥεͷίϯετϥΫλͷ Ҿ਺ʹΠϯδΣΫγϣϯ͍ͨ͠BeanΛ౉͠ɺ ࣗ਎ͷϑΟʔϧυʹηοτ͍ͯ͘͠ 2. ίϯετϥΫλʹ@AutowiredΛ͚ͭΔɹɹ ʢίϯετϥΫλ͕Ұͭͷ࣌͸লུՄೳʣ ʘ۩ମྫ͸ϋϯζΦϯύʔτʹͯʗ

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%*ίϯςφ @Service 4BNQMF4FSWJDF @Controller @Autowired 4BNQMF$POUSPMMFS QSJWBUFpOBM4BNQMF4FSWJDFTBNQMF4FSWJDF 4BNQMF$POUSPMMFS 4BNQMF4FSWJDFTBNQMF4FSWJDF \ UIJTTBNQMF4FSWJDFTBNQMF4FSWJDF ^ ΠϯδΣΫγϣϯͷਤ ᶃ

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%*ίϯςφ @Service 4BNQMF4FSWJDF #FBO 4BNQMF4FSWJDF #FBO 4BNQMF$POUSPMMFS @Controller @Autowired 4BNQMF$POUSPMMFS QSJWBUFpOBM4BNQMF4FSWJDFTBNQMF4FSWJDF 4BNQMF$POUSPMMFS 4BNQMF4FSWJDFTBNQMF4FSWJDF \ UIJTTBNQMF4FSWJDFTBNQMF4FSWJDF ^ ΠϯδΣΫγϣϯͷਤ ᶄ ΠϯδΣΫγϣϯ

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DIͰԿ͕͏Ε͍͔͠ • Πϯελϯεͷ࡞੒΍ॳظԽॲཧͳͲΛɹɹ ੾Γग़ͤΔͷͰίʔυͷݟ௨͕͠ྑ͘ͳΔ • DIίϯςφʹΠϯελϯεͷείʔϓ΍ɹɹ ϥΠϑαΠΫϧΛ؅ཧͯ͠΋Β͑Δ • ςετͰΠϯελϯεͷࠩ͠ସ͕͑͠΍͘͢ ͳΔ

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Spring MVC

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Spring MVC • SpringͰWebΞϓϦέʔγϣϯΛ։ൃ͢Δࡍʹ ར༻͢ΔϑϨʔϜϫʔΫͷҰͭ • MVCύλʔϯΛ࠾༻ • ϦΫΤετϚοϐϯάͳͲΛΞϊςʔγϣϯΛ ར༻ͯ͠ઃఆͰ͖Δ

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Spring MVC ͷਤ ϑϩϯτίϯτϩʔϥ %JTQBUDIFS4FSWMFU )BOEMFS.BQQJOH $POUSPMMFS 7JFX3FTPMWFS 7JFX ᶃ ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ

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Spring MVC ͷ಺෦ॲཧ ᶃ ֎෦͔ΒϦΫΤετ͕΍ͬͯ͘Δ ᶄ DispatcherServlet͕HandlerMappingʹϦΫΤετ͢Δ ᶅ HandlerMapping͕ϦΫΤετʹԠͨ͡ControllerΛฦͯ͘͠ΕΔ ᶆ DispatcherServlet͕ControllerʹॲཧΛҕৡ͢Δ ᶇ Controller͕View໊ͱModelΛฦ͢ ᶈ DispatcherServlet͕View໊ΛViewResolverʹ౉͢ ᶉ ViewResolver͕Viewͷ׬શύεΛฦ͢ ᶊ DispatcherServlet͕ViewʹModelΛ౉͢ ᶋ View͸ModelΛݩʹHTMLΛ૊Έཱͯͯฦ͢ ᶌ ֎෦ʹHTMLϨεϙϯεΛฦ͢

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ࠓճѻ͏෦෼ ϑϩϯτίϯτϩʔϥ %JTQBUDIFS4FSWMFU )BOEMFS.BQQJOH $POUSPMMFS 7JFX3FTPMWFS 7JFX

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ࠓճѻ͏෦෼ ᶃ ֎෦͔ΒϦΫΤετ͕΍ͬͯ͘Δ ᶄ DispatcherServlet͕HandlerMappingʹϦΫΤετ͢Δ ᶅ HandlerMapping͕ϦΫΤετʹԠͨ͡ControllerΛฦͯ͘͠ΕΔ ᶆ DispatcherServlet͕ControllerʹॲཧΛҕৡ͢Δ ᶇ Controller͕View໊ͱModelΛฦ͢ ᶈ DispatcherServlet͕View໊ΛViewResolverʹ౉͢ ᶉ ViewResolver͕Viewͷ׬શύεΛฦ͢ ᶊ DispatcherServlet͕ViewʹModelΛ౉͢ ᶋ View͸ModelΛݩʹHTMLΛ૊Έཱͯͯฦ͢ ᶌ ֎෦ʹHTMLϨεϙϯεΛฦ͢

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Controllerͱ͸ • HTTPϦΫΤετΛϚοϐϯάͨ͠Γɹɹɹ ྫ֎ϋϯυϦϯάΛߦ͏෦෼ • @Controller, @RestControllerΞϊςʔγϣϯ Λ͚ͭΔ

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RequestMapping • Controllerʹ༻ҙͨ͠ϝιουʹ͚ͭΔΞϊ ςʔγϣϯ • ͜ͷURLʹ͜ͷHTTPϝιουͷϦΫΤετ͕ དྷͨΒ͜ͷॲཧɺͱৼΓ෼͚ΔͨΊͷઃఆ

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Modelͱ͸ • ViewςϯϓϨʔτʹ஋Λड͚౉ͨ͢Ίʹ ࢖༻͞ΕΔ΋ͷ

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ModelͷྲྀΕ • ControllerͰModelʹ৘ใΛ٧Ίͯฦ͢ • Modelͷதͷ৘ใ͸View͕ݟΕΔҐஔʹ ஔ͔ΕɺViewͷ૊Έཱͯʹ࢖ΘΕΔ

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ModelͷྲྀΕͷਤ ᶃ ϑϩϯτίϯτϩʔϥ %JTQBUDIFS4FSWMFU )BOEMFS.BQQJOH $POUSPMMFS 7JFX3FTPMWFS 7JFX .PEFM greeting = "hello"

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ModelͷྲྀΕͷਤ ᶄ ϑϩϯτίϯτϩʔϥ %JTQBUDIFS4FSWMFU )BOEMFS.BQQJOH $POUSPMMFS 7JFX3FTPMWFS 7JFX .PEFM greeting = "hello"

.PEFM

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ModelͷྲྀΕͷਤ ᶅ ϑϩϯτίϯτϩʔϥ %JTQBUDIFS4FSWMFU )BOEMFS.BQQJOH $POUSPMMFS 7JFX3FTPMWFS 7JFX .PEFM greeting = "hello"

hello

.PEFM

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ϑϩϯτίϯτϩʔϥͷઃఆ • ࣗಈͰϑϩϯτίϯτϩʔϥΛ࢖͑ΔΑ͏ʹ ͢Δʹ͸ɺJava ConﬁgΫϥεʹ @EnableWebMvcΞϊςʔγϣϯΛ͚ͭΔ

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Spring Boot

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Spring Boot • SpringΛΑΓखܰʹɺ࠷খݶͷઃఆͰ࢖͑Δ Α͏ʹͨ͠ϑϨʔϜϫʔΫ

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Spring Boot ͷಛ௃ • Auto Conﬁguration • Spring Boot Starter • Stand-alone Application • etc.

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Spring Boot ͷಛ௃ • Auto Conﬁguration • Spring Boot Starter • Stand-alone Application

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Auto Configuration • SpringΛ࢖༻͢Δʹ͸༷ʑͳઃఆ͕ඞཁ • Spring Bootʹ͸ଟ͘ͷઃఆʢJava Configʣ ͕σϑΥϧτͰ༻ҙ͞Ε͍ͯΔ • @EnableAutoConfigurationΛ෇͚Δͱඞཁͳ ઃఆΛࣗಈͰಡΈࠐΜͰ͘ΕΔ

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Spring Boot ͷಛ௃ • Auto Conﬁguration • Spring Boot Starter • Stand-alone Application

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Spring Boot Starter • Spring Bootʹ͸ඞཁͳϥΠϒϥϦΛ·ͱΊͯ ͘ΕΔStarterͱ͍͏࢓૊Έ͕͋Δ • ґଘؔ܎ʹspring-boot-starter-xxxΛ௥Ճ͢Δ ͚ͩͰؔ࿈͢ΔϥΠϒϥϦΛ·ͱΊͯऔಘͯ͠ ͘ΕΔ

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ࠓճ࢖͏Starter • spring-boot-starter-web • webΞϓϦέʔγϣϯΛ࡞੒͢ΔͨΊ • spring-boot-starter-thymeleaf • Thymeleafͱ͍͏ViewςϯϓϨʔτΤϯδϯ Λར༻͢ΔͨΊ

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Spring Boot ͷಛ௃ • Auto Conﬁguration • Spring Boot Starter • Stand-alone Application

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Stand-alone Application • jarΛੜ੒͢Δࡍʹ૊ΈࠐΈαʔόΛؚΜͰɹ ͘ΕΔͷͰ୯ମͰ࣮ߦՄೳ • warΛੜ੒ͯ͠αʔόʹσϓϩΠ͠ͳͯ͘΋ ࣮ߦͰ͖Δ

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·ͱΊ

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Spring & Spring Boot ·ͱΊ • ෳ਺ͷίϯϙʔωϯτʢSpring Core, Spring MVC, etc.ʣͷ૊Έ߹ΘͤͰͰ͖͍ͯΔ • Springͷࠜװ͸DIʹ͋Γ • SpringΛΑΓखܰʹ࢖͑ΔΑ͏ʹͨ͠ͷ͕ Spring Boot

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ࢀߟࢿྉ

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ࢀߟࢿྉʢWebʣ • Spring ެࣜαΠτ • https://spring.io/ • ॳΊͯͰ΋30෼Ͱ෼͔ΔSpring 5 & Spring Boot 2Φʔ όʔϏϡʔ • https://www.slideshare.net/ masatoshitada7/30spring-5-spring- boot-2-103523666

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ࢀߟࢿྉʢॻ੶ʣ • Springపఈೖ໳