This document contains diagrams and notes from a presentation about new features in Spring Framework 5.0 for Java 8 and 9. It discusses updated features in areas like core, web, data access, security, testing and Spring Boot to take advantage of newer Java versions. Specific topics mentioned include HTTP/2 support, Bean Validation 2.0, OAuth 2.0 authentication, JUnit 5 integration, and Java 9 module system compatibility in Spring Boot applications.

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1. Core 2. Web
3. Data4. Security
5. Test
6. Boot

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1. Core 2. Web
3. Data4. Security
5. Test
6. Boot

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▸ @NonNull / @Nullable
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▸ 😖
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requires
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module my.app {
requires spring.jdbc;
requires spring.webmvc;
requires spring.context;
}

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15※SpringOne 2017 Spring Framework 5.0 on JDK 8 & 9

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#
#Mon Jan 29 13:18:40 JST 2018
com.example.web.controller.TodoController=org.s
pringframework.stereotype.Component
com.example.persistence.repository.TodoReposito
ryImpl=org.springframework.stereotype.Component
com.example.service.TodoServiceImpl=org.springf
ramework.stereotype.Component
com.example.web.config.MvcConfig=org.springfram
ework.stereotype.Component
com.example.persistence.config.PersistenceConfi
g=org.springframework.stereotype.Component
com.example.service.config.ServiceConfig=org.sp
ringframework.stereotype.Component
▸ Bean

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https://twitter.com/snicoll/status/957893939054415872

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@NonNull/@Nullable
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1. Core 2. Web
3. Data4. Security
5. Test
6. Boot

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▸ WebMvcConfigurerAdapter
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▸ PushBuilder
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@GetMapping("/push")
public String push(PushBuilder pushBuilder) {
// …
}

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▸ @Email @NotEmpty @NotBlank
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▸ @Past @Future
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▸ List<@Size(min = 3) String>
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GlassFish
Java EE 8
-Bean Validation 2.0 -

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@Configuration
public class MvcConfig implements WebMvcConfigurer {
// …
}
@Configuration
public class MvcConfig extends WebMvcConfigurerAdapter {
// …
}
WebMvcConfigurerAdapter
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▸ WebMvcConfigurer

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@PostMapping
public String post(HelloForm helloForm) {
// …
}
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public class HelloForm {
private final String message;
public HelloForm(String message) {
this.message = message;
}
public String getMessage() {
return message;
}
}
final
getter
(setter )

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▸ -parameters
▸ -parameters
▸ 😅
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@DateTimeFormat
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▸ MaxUploadSizeExceededException
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▸ ResponseStatusException
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▸ ExceptionHandler
▸ RedirectAttribute
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1. Core 2. Web
3. Data4. Security
5. Test
6. Boot

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▸ Optional
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public interface CrudRepository<T, ID>
extends Repository<T, ID> {
// Iterable<S> save(Iterable<S> entities)
<S extends T> Iterable<S> saveAll(Iterable<S> entities);
// T find(ID id)
Optional<T> findById(ID id);
// …

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//
Iterable<T> findAllById(Iterable<ID> ids);
// boolean exists(ID id)
boolean existsById(ID id);
// void delete(ID id)
void deleteById(ID id);
// void delete(Iterable<? extends T> entities)
void deleteAll(Iterable<? extends T> entities);
//
}

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▸ JdbcTemplate
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public interface EmployeeRepository
extends CrudRepository<Employee, Long> {
// SQL
@Query("SELECT ... FROM employee WHERE ...")
List<Employee> findByHogeHoge(...);
// CrudRepository

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1. Core 2. Web
3. Data4. Security
5. Test
6. Boot

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▸ DelegatingPasswordEncoder
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@EnableWebSecurity
public class SecurityConfig
extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) {
http.authorizeRequest()
.anyRequest().authenticated();
http.oauth2Login();
}
// omitted
※
https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/#jc-oauth2login-javaconfig-wo-boot

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DelegatingPasswordEncoder
▸ PasswordEncoder
DelegatingPasswordEncoder
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@EnableWebSecurity
public class SecurityConfig
extends WebSecurityConfigurerAdapter {
@Override
protected void configure(
AuthenticationManagerBuilder auth)
auth.inMemoryAuthentication()
.withUser("…").password("…").roles("…").and()
.withUser("…").password("…").roles("…");
}
// omitted
Delegating
PasswordEncoder

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DelegatingPasswordEncoder
▸
PasswordEncoder
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Delegating
Password
Encoder
BCrypt
Password
Encoder
Pbkdf2
Password
Encoder
NoOp
Password
Encoder
{bcrypt}$2a$10$…
{pbkdf2}5d623b44…
{noop}password

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PasswordEncoder
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▸ PasswordEncoder
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DelegatingPasswordEncoder

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1. Core 2. Web
3. Data4. Security
5. Test
6. Boot

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▸ SpringExtension
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@ExtendWith(SpringExtension.class)
@ContextConfiguration(
classes = HelloTestConfig.class)
public class HelloTest {
@Autowired HelloService service;
// …
}

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▸ SpringExtension
ParameterResolver
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@ExtendWith(SpringExtension.class)
@ContextConfiguration(
classes = HelloTestConfig.class)
public class HelloTest {
@Test
void test(@Autowired HelloService service) {
// …
}
}

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▸ @SpringJUnitConfig
▸ = @ExtendWith(SpringExtension.class)
+ @ContextConfiguration
▸ @SpringJUnitWebConfig
▸ = @ExtendWith(SpringExtension.class)
+ @ContextConfiguration + @WebAppConfiguration
▸ @EnabledIf / @DisabledIf
▸
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1. Core 2. Web
3. Data4. Security
5. Test
6. Boot

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-parameters
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▸ 😅
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▸ WebSecurityConfigurerAdapter
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▸ /actuator
▸ /info /health
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# /shutdown
management.endpoint.< >.enabled=true
#
management.endpoints.web.exposure.include=< >

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@Configuration
public class SecurityConfig
extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http)
throws Exception {
http.httpBasic();
http.authorizeRequests()
.requestMatchers(EndpointRequest.toAnyEndpoint())
.hasRole(" ")
.anyRequest().authenticated();
}

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▸ server.context-path
server.servlet.context-path
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<!— —>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-properties-migrator</artifactId>
<scope>runtime</scope>
</dependency>

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Core JDK 8 JDK 9/10
Web HTTP/2 Bean Validation 2.0
Data Repository API
Security OAuth 2.0 DelegatingPasswordEncoder
Test JUnit 5
Boot JDK 8/9 Actuator

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