FRAMEWORK/SPRING
WebMvcConfigurerAdapter
적외선
2017. 10. 19. 16:25
spring mvc의 xml과 java config를 비교해서 한번 살펴보겠다.
EnableWebMvc
@Configuration
@EnableWebMvc
public class WebConfig {
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<mvc:annotation-driven/>
</beans>
xml의
@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {
}
우리는 WebMvcConfigurerAdapter을 상속받아서 커스터마이징을 할 수 있다.
@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {
@Override
public void addFormatters(FormatterRegistry registry) {
}
}
Conversion and Formatting
<mvc:annotation-driven conversion-service="conversionService"/>
<bean id="conversionService"
class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
<property name="converters">
<set>
<bean class="org.example.MyConverter"/>
</set>
</property>
<property name="formatters">
<set>
<bean class="org.example.MyFormatter"/>
<bean class="org.example.MyAnnotationFormatterFactory"/>
</set>
</property>
<property name="formatterRegistrars">
<set>
<bean class="org.example.MyFormatterRegistrar"/>
</set>
</property>
</bean>
위의 xml과 javaconfig는 똑같은 설정이다. 간단하게 addFormatters 메서드를 재정의하면 된다.
Validation
@Override
public Validator getValidator() {
return null;
}
<mvc:annotation-driven validator="globalValidator"/>
마찬가지로 getValidator를 재정의하면 위의 xml과 같은 설정이 된다.
Interceptors
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new LocaleInterceptor());
registry.addInterceptor(new ThemeInterceptor()).addPathPatterns("/**").excludePathPatterns("/admin/**");
registry.addInterceptor(new SecurityInterceptor()).addPathPatterns("/secure/*");
}
<mvc:interceptors>
<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"/>
<mvc:interceptor>
<mvc:mapping path="/**"/>
<mvc:exclude-mapping path="/admin/**"/>
<bean class="org.springframework.web.servlet.theme.ThemeChangeInterceptor"/>
</mvc:interceptor>
<mvc:interceptor>
<mvc:mapping path="/secure/*"/>
<bean class="org.example.SecurityInterceptor"/>
</mvc:interceptor>
</mvc:interceptors>
위의 설정은 인터셉터이다. addInterceptors를 재정의해서 등록하면 된다.
Content Negotiation
@Override
public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
configurer.mediaType("json", MediaType.APPLICATION_JSON);
}
<mvc:annotation-driven content-negotiation-manager="contentNegotiationManager"/>
<bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
<property name="mediaTypes">
<value>
json=application/json
xml=application/xml
</value>
</property>
</bean>
위의 xml설정은 java config의 configureContentNegotiation 재정의해서 등록하면 된다.
View Controllers
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("home");
}
<mvc:view-controller path="/" view-name="home"/>
static한 html을 바로 사용하기 좋은 설정이다. addViewControllers만 재정의해서 등록하면 된다.
Serving of Resources
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/public-resources/");
}
<mvc:resources mapping="/resources/**" location="/public-resources/"/>
리소스들은 등록한다 addResourceHandlers만 재정의하면 된다.
<mvc:resources mapping="/resources/**" location="/public-resources/" cache-period="31556926"/>
캐쉬 설정도 가능하다.
Falling Back On the “Default” Servlet To Serve Resources
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
<mvc:default-servlet-handler/>
위는 같은 설정이다.
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable("myCustomDefaultServlet");
}
<mvc:default-servlet-handler default-servlet-name="myCustomDefaultServlet"/>
Path Matching
@Override
public void configurePathMatch(PathMatchConfigurer configurer) {
configurer
.setUseSuffixPatternMatch(true)
.setUseTrailingSlashMatch(false)
.setUseRegisteredSuffixPatternMatch(true)
.setPathMatcher(antPathMatcher())
.setUrlPathHelper(urlPathHelper());
}
@Bean
public UrlPathHelper urlPathHelper() {
//...
}
@Bean
public PathMatcher antPathMatcher() {
//...
}
<mvc:annotation-driven>
<mvc:path-matching
suffix-pattern="true"
trailing-slash="false"
registered-suffixes-only="true"
path-helper="pathHelper"
path-matcher="pathMatcher"/>
</mvc:annotation-driven>
<bean id="pathHelper" class="org.example.app.MyPathHelper"/>
<bean id="pathMatcher" class="org.example.app.MyPathMatcher"/>
configurePathMatch만 재정의 하면 된다.
Message Converters
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder()
.indentOutput(true)
.dateFormat(new SimpleDateFormat("yyyy-MM-dd"))
.modulesToInstall(new ParameterNamesModule());
converters.add(new MappingJackson2HttpMessageConverter(builder.build()));
converters.add(new MappingJackson2XmlHttpMessageConverter(builder.xml().build()));
}
<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="objectMapper" ref="objectMapper"/>
</bean>
<bean class="org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter">
<property name="objectMapper" ref="xmlMapper"/>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<bean id="objectMapper" class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean"
p:indentOutput="true"
p:simpleDateFormat="yyyy-MM-dd"
p:modulesToInstall="com.fasterxml.jackson.module.paramnames.ParameterNamesModule"/>
<bean id="xmlMapper" parent="objectMapper" p:createXmlMapper="true"/>
위의 설정도 같은 설정이다.
솔직히 거의다 아는 내용이지만 아예 모르거나 긴가민가 하는 부분도 몇개 있다. 다음에는 저 설정이 어떤 역할을 하는지 알아보자!
출처 : http://docs.spring.io/spring/docs/4.3.0.RC2/spring-framework-reference/htmlsingle/#mvc-config-