図解で学ぶ Spring MVC / Architecture of Spring MVC

Transcript

1. ਤղͰֶͿ Spring MVC 2019/08/28 JSUGษڧձ 2019ͦͷ8 Spring for Beginner #jsug ͍͚ @otty_375
   
2. ࣗݾ঺հ • ͍͚ʢ@otty_375ʣ • ITاۀͰWebγεςϜ։ൃӡ༻ • Springྺ͸2೥΄Ͳ
   
3. ࠓ೔ͷΰʔϧ • Spring MVC ͷΞʔΩςΫνϟ͕ΠϝʔδͰ͖Δ • Spring MVC ͷجຊతͳ࣮૷ํ๏͕ཧղͰ͖Δ
    ʘࠓޙSpring MVC Λֶश͢Δ্Ͱͷ౔୆ʹͳΕ͹ʗ
4. ΞδΣϯμ 1. Spring MVC ͱ͸ 2. Spring MVC ͷΞʔΩςΫνϟ 3. Spring MVC ͷجຊతͳ࣮૷ํ๏ 4. Spring MVC ͷͦͷଞͷػೳ 5. ·ͱΊ
   
5. Spring MVC ͱ͸
   
6. Spring MVC ͱ͸ • WebΞϓϦέʔγϣϯΛ։ൃ͢Δࡍʹར༻͢Δ ϑϨʔϜϫʔΫ • ϑϩϯτίϯτϩʔϥύλʔϯΛ࠾༻ • ϦΫΤετϚοϐϯάͳͲΛΞϊςʔγϣϯΛ ར༻ͯ͠ઃఆͰ͖Δ
   
7. ϑϩϯτίϯτϩʔϥύλʔϯ • શͯͷϦΫΤετͷΤϯτϦʔϙΠϯτͱͯ͠ ϑϩϯτίϯτϩʔϥΛ࢖༻͢Δ • ద੾ͳ໾ׂͷΦϒδΣΫτʹॲཧΛҕৡ͢Δ • ϝϦοτɿϦΫΤετʹؔ͢Δॲཧͷڞ௨Խ
   
8. Spring MVC ͷ ΞʔΩςΫνϟ
   
9. ॲཧͷྲྀΕ ҎԼͷαϯϓϧΞϓϦΛྫʹઆ໌͠·͢ • ϦΫΤετɿ/greet [GET] • Ϩεϙϯεɿgreet.html • ࣌ؒଳʹΑͬͯҟͳΔݴ༿Λฦ͢
   
10. Spring MVC ͷΞʔΩςΫνϟ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶃ ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ։ൃऀ͕࣮૷͢Δ෦෼ Spring MVC ಺෦ ᶌ ᶎ ᶍ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD
11. ॲཧͷྲྀΕ ͦͷ̍ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ ᶎ ᶍ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ
12. DispatcherServlet • શͯͷϦΫΤετͷΤϯτϦʔϙΠϯτͱͳΔ αʔϒϨοτΫϥε • ༷ʑͳ໾ׂͷΠϯλʔϑΣʔεΛݺͼग़ͯ͠ ϑϨʔϜϫʔΫશମΛ੍ޚ͍ͯ͠Δ
    
13. ॲཧͷྲྀΕ ͦͷ̍ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ ᶎ ᶍ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ ΫϥΠΞϯτ
    ʮHSFFU
    Λऔಘ͍ͨ͠Ͱ͢ʯ %JTQBUDIFS4FSWMFU
    ʮྃղͰ͢ʯ
14. ॲཧͷྲྀΕ ͦͷ̎ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ ᶍ ᶎ
15. HandlerMapping • ࢖༻͢ΔHandlerΛಛఆ͢Δ໾ׂͷ ΠϯλʔϑΣʔε • ύε΍HTTPϝιουͳͲΛݩʹɹɹ ͲͷHandlerΛݺͼग़͔͢ಛఆ͢Δ
    
16. Handler • ϦΫΤετʹର͢Δ۩ମతͳॲཧΛߦ͏໾ׂ • ։ൃऀ͕࣮૷͢Δ෦෼ • ϦΫΤετύε΍HTTPϝιουͳͲͷɹɹɹ ϚοϐϯάઃఆΛߦ͏
    
17. ॲཧͷྲྀΕ ͦͷ̎ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ ᶍ ᶎ )BOEMFS.BQQJOH
    ʮ(SFFU$POUSPMMFSͷHSFFUϝιουͰ͢ʯ Ͳͷ)BOEMFS͔ʁ ύε )551ϝιου ύϥϝʔλ )FMMP$POUSPMMFS ͷIFMMPϝιου IFMMP (&5 ͳ͠ (SFFU$POUSPMMFS ͷHSFFUϝιου HSFFU (&5 ͳ͠ ʜ ʜ ʜ ʜ %JTQBUDIFS4FSWMFU
    ʮHSFFUͷ(&5ϝιουͷ)BOEMFSΛ ڭ͍͑ͯͩ͘͞ʯ
18. ॲཧͷྲྀΕ ͦͷ̏ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ ᶍ ᶎ
19. HandlerAdapter • HandlerΛݺͼग़͢໾ׂͷΠϯλʔϑΣʔε • ݺͼग़͠લޙʹదٓඞཁͳॲཧΛߦ͏ • ϦΫΤετϘσΟΛJavaΦϒδΣΫτʹม׵ • Bean Validation ͳͲ
    
20. Handler • ϦΫΤετʹର͢Δ۩ମతͳॲཧΛߦ͏໾ׂ • ViewΛ࢖༻͢Δ৔߹ɺ໭Γ஋͸Viewͷ໊લΛ ฦ͠ը໘ͷදࣔʹඞཁͳσʔλ͸Modelͷதʹ ٧Ίͯฦ͢
    
21. Model • Handler͔ΒViewςϯϓϨʔτʹ஋Λड͚౉͢ ͨΊʹར༻͞ΕΔΠϯλʔϑΣʔε • Modelͷதͷ৘ใ͸View͕ݟΕΔҐஔʹஔ͔Ε Viewͷ૊Έཱͯʹ࢖ΘΕΔ
    
22. ॲཧͷྲྀΕ ͦͷ̏ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ )BOEMFS"EBQUFS
    ʮඞཁͳલॲཧ͸͓͍ͯͨ͠ͷͰ
    ॲཧΑΖ͓͘͠ئ͍͠·͢ʯ ᶍ ᶎ ᶆ %JTQBUDIFS4FSWMFU
    ʮ(SFFU$POUSPMMFSͷHSFFUϝιουͷ
    ݺͼग़͠Λ͓ئ͍͠·͢ʯ
23. ॲཧͷྲྀΕ ͦͷ̏ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ )BOEMFS
    ʮॲཧऴΘΓ·ͨ͠
    7JFXͷ໊લ͸HSFFUͰ͢
    ඞཁͳσʔλ͸.PEFMʹ٧Ί͓͖ͯ·ͨ͠ʯ ᶍ ᶎ .PEFM message = "hello" ᶉ )BOEMFS"EBQUFS
    ʮඞཁͳޙॲཧ͸͓͖ͯ͠·ͨ͠
    7JFXͷ໊લ͸HSFFUͰ͢ʯ .PEFM
24. ॲཧͷྲྀΕ ͦͷ̐ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ ᶍ ᶎ
25. ViewResolver • Handler͔Βฦ٫͞ΕͨView໊ΛݩʹɺView ͷ࣮૷ΫϥεΛಛఆ͠Viewͷ׬શύεΛฦ͢ ໾ׂ
    
26. ॲཧͷྲྀΕ ͦͷ̐ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ ᶍ 7JFX3FTPMWFS
    ʮUFNQMBUFTHSFFUIUNMͰ͢ʯ ᶎ ᶊ %JTQBUDIFS4FSWMFU
    ʮ7JFX໊͕HSFFUͳͷͰ͕͢
    ۩ମతͳύεΛڭ͍͑ͯͩ͘͞ʯ
27. ॲཧͷྲྀΕ ͦͷ̑ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ ᶎ ᶍ
28. View • Ϩεϙϯεσʔλͷੜ੒Λߦ͏໾ׂ • ModelͷதͷσʔλΛࢀরͯ͠ςϯϓϨʔτ ʹຒΊࠐΉ
    
29. ॲཧͷྲྀΕ ͦͷ̑ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ 7JFX
    ʮ.PEFMͷσʔλͱUFNQMBUFTHSFFUIUNM Λ࢖ͬͯϨεϙϯεΛੜ੒͠·͢ʯ ᶎ ᶍ .PEFM message = "hello" <p th:text=“${message}"></p> ᶌ %JTQBUDIFS4FSWMFU
    ʮϨεϙϯεͷੜ੒Λ
    ͓ئ͍͠·͢ʯ
30. ॲཧͷྲྀΕ ͦͷ̑ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ᶌ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD ᶃ %JTQBUDIFS4FSWMFU
    ʮϨεϙϯεͱͯ͠HSFFUIUNMΛฦ͠·͢ʯ ᶎ ᶍ 7JFX
    ʮϨεϙϯε͕׬੒͠·ͨ͠ʯ ᶍ <p>hello</p>
31. Spring MVC ͷ جຊతͳ࣮૷ํ๏
    
32. جຊతͳ࣮૷ํ๏ Spring BootΛ࢖༻͢Δ৔߹Λྫʹ͠·͢ 1. Spring MVCͷґଘ௥Ճ 2. Controller࣮૷ 3. View࣮૷
    
33. • Mavenͷ৔߹ɿpom.xmlͷdependenciesʹ௥Ճ 1. Spring MVC ͷґଘ௥Ճ
     <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!— ͦͷଞඞཁͳґଘΛهࡌɻࠓճ͸ςϯϓϨʔτΤϯδϯʹThymeleafΛ࢖༻ --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> </dependencies>
34. 2. Controller࣮૷
     package com.example.demo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class GreetController { @GetMapping("/greet") public String greet(Model model) { String message = getGreetMessage(); model.addAttribute("message", message); return "greet"; } } GreetController.java
35. 2. Controller࣮૷ ͦͷ̍
     package com.example.demo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class GreetController { @GetMapping("/greet") public String greet(Model model) { String message = getGreetMessage(); model.addAttribute("message", message); return "greet"; } } GreetController.java #FBOొ࿥͢ΔͨΊʹ
    Ϋϥεʹ!$POUSPMMFSΛ෇༩͢Δ
36. 2. Controller࣮૷ ͦͷ̎
     package com.example.demo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class GreetController { @GetMapping("/greet") public String greet(Model model) { String message = getGreetMessage(); model.addAttribute("message", message); return "greet"; } } GreetController.java ϦΫΤετͱͷϚοϐϯάઃఆΛ
    ϝιουʹ෇༩͢Δ
    ଞʹ͸!1PTU.BQQJOH
    !1VU.BQQJOHͳͲ
37. 2. Controller࣮૷ ͦͷ̐
     package com.example.demo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class GreetController { @GetMapping("/greet") public String greet(Model model) { String message = getGreetMessage(); model.addAttribute("message", message); return "greet"; } } GreetController.java 7JFXͰ࢖༻͢ΔσʔλΛηοτ͢ΔͨΊͷ .PEFMΛҾ਺Ͱड͚औΔ
38. 2. Controller࣮૷ ͦͷ̏
     package com.example.demo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class GreetController { @GetMapping("/greet") public String greet(Model model) { String message = getGreetMessage(); model.addAttribute("message", message); return "greet"; } } GreetController.java ඞཁͳϏδωεϩδοΫΛ࣮૷
    ʢ͜͜Ͱ͸ݱࡏ࣌ࠁʹԠͯ͡ҟͳΔϝοηʔδΛ ฦ͢Α͏ͳϝιουʣ
39. 2. Controller࣮૷ ͦͷ̐
     package com.example.demo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class GreetController { @GetMapping("/greet") public String greet(Model model) { String message = getGreetMessage(); model.addAttribute("message", message); return "greet"; } } GreetController.java 7JFXͰ࢖༻͢ΔσʔλΛ.PEFMʹηοτ͢Δ
    ʢ͜͜Ͱ͸NFTTBHFͱ͍͏໊લͰ஋Ληο τʣ
40. 2. Controller࣮૷ ͦͷ̑
     package com.example.demo.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class GreetController { @GetMapping("/greet") public String greet(Model model) { String message = getGreetMessage(); model.addAttribute("message", message); return "greet"; } } GreetController.java 7JFX໊Λฦ͢
41. 3. View࣮૷
     <!DOCTYPE html> <html xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8" /> <title>Greet</title> </head> <body> <p th:text="${message}"></p> </body> </html> greet.html ʢςϯϓϨʔτΤϯδϯɿThymeleafʣ
42. 3. View࣮૷
     <!DOCTYPE html> <html xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8" /> <title>Greet</title> </head> <body> <p th:text="${message}"></p> </body> </html> greet.html ʢςϯϓϨʔτΤϯδϯɿThymeleafʣ )BOEMFSͰฦ٫͞ΕΔ7JFX໊ʹରԠ͢ΔϑΝΠϧΛ ࡞੒
43. 3. View࣮૷
     <!DOCTYPE html> <html xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8" /> <title>Greet</title> </head> <body> <p th:text="${message}"></p> </body> </html> greet.html .PEFMʹηοτ͞ΕΔ஋ΛຒΊࠐΉهࡌ
    ʢ͜ͷ৔߹͸ల։͞ΕΔͱ
    
    QIFMMPQ
    ͷΑ͏ʹͳΔʣ ʢςϯϓϨʔτΤϯδϯɿThymeleafʣ
44. ิ଍ɿඞཁͳConfiguration • ࠓճ͸Spring BootͷAutoConfigurationػೳʹ ΑΓɺඞཁͳConfigurationͳͲ͸Spring Boot ͕༻ҙ͍ͯ͠ΔσϑΥϧτͷ΋ͷΛ࢖༻͢Δ͜ ͱͱ͠·͢
    
45. ิ଍ɿSpring Initializr • Spring Boot ϓϩδΣΫτͷ਽ܗΛੜ੒Ͱ͖Δ • ࠷ॳ͔ΒDependenciesʹ௥Ճ͢Δ͜ͱ͕Մೳ • https://start.spring.io/ •
    
46. ิ଍ɿRestController • REST APIͷ৔߹͸@RestControllerΛ࢖༻ • ϝιουͷ໭Γ஋͸View໊Ͱ͸ͳ͘ɹɹɹ JavaΦϒδΣΫτͳͲͷϨεϙϯεϘσΟ • JavaΦϒδΣΫτ <-> JSON ͷม׵͸ HandlerAdapterͷ෦෼ͰߦΘΕΔ
    
47. Spring MVC ͷ ͦͷଞͷػೳ
    
48. Spring MVC ͷͦͷଞͷػೳ • ҎԼͷΑ͏ͳجຊతͳػೳ΋͋Γ·͢ • όϦσʔγϣϯ • ྫ֎ϋϯυϥ • RESTΫϥΠΞϯτʢRestTemplateʣ • ςετʢMockMvcʣ ͳͲ
    
49. Spring MVC ͷͦͷଞͷػೳ • ҎԼͷΑ͏ͳԠ༻తͳػೳ΋͋Γ·͢ • ηογϣϯͰͷσʔλ؅ཧ • ඇಉظॲཧ • ࠃࡍԽɹͳͲ
    
50. ·ͱΊ
    
51. Spring MVC ·ͱΊ • WebΞϓϦέʔγϣϯΛ։ൃ͢Δࡍʹར༻͢Δ ϑϨʔϜϫʔΫ • DispatcherServlet͕શϦΫΤετͷΤϯτϦʔ ϙΠϯτͰϑϨʔϜϫʔΫશମΛ੍ޚ͍ͯ͠Δ • ϦΫΤετϚοϐϯάͳͲΛΞϊςʔγϣϯΛ ར༻ͯ͠ઃఆͰ͖Δ
    
52. Spring MVC ͷΞʔΩςΫνϟ %JTQBUDIFS
    4FSWMFU )BOEMFS.BQQJOH ᶃ ᶄ ᶅ ᶆ ᶇ ᶈ ᶉ ᶊ ᶋ ։ൃऀ͕࣮૷͢Δ෦෼ Spring MVC಺෦ ᶌ ᶎ ᶍ
     )BOEMFS"EBQUFS 7JFX3FTPMWFS 7JFX )BOEMFS IUNM
    
    FUD
53. ࢀߟࢿྉ
    
54. ࢀߟࢿྉʢॻ੶ʣ • Springపఈೖ໳ʢגࣜձࣾNTTσʔλ / ஶʣ
    
55. 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
    
56. EOP