Spring MVC Java Config (конфигурация с аннотациями) для mvc-config.xml
Пример преобразования mvc-config.xml в конфигурацию Spring MVC Java Config (конфигурация с аннотациями).
Обзор приложения Spring MVC + AngularJS + Bootstrap + HTML5
Используемые технологии и библиотеки
- Spring MVC 4.2.4.Release
1. Описание задачи
Преобразовать mvc-config.xml в аналогичный по функционалу Java класс с использованием аннотаций.
2. Структура проекта
Это продолжение первой статьи по преобразованию xml конфигурации приложения на Java конфигурацию.
3. mvc-config.xml
mvc-config.xml:
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<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:security="http://www.springframework.org/schema/security" 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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd"> <!--Spring security enabled annotations--> <security:global-method-security pre-post-annotations="enabled" secured-annotations="enabled" jsr250-annotations="enabled"/> <!-- context:component-scan This tag will scan @Component, @Repository, @Service, @Controller and also resolves @Autowired and @Qualifier --> <context:component-scan base-package="ru.javastudy.mvcHtml5Angular.mvc" /> <!-- mvc:annotation-driven configures Spring MVC annotations Support for validating @Controller inputs with @Valid, if a JSR-303 Provider is present on the classpath. HttpMessageConverter support for @RequestBody method parameters and @ResponseBody method return values from @RequestMapping or @ExceptionHandler methods. --> <mvc:annotation-driven> <!--use int RestController to produce pretty json response--> <mvc:message-converters> <bean id="jacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="prettyPrint" value="true" /> </bean> </mvc:message-converters> </mvc:annotation-driven> <!-- activate @Transactional JPA annotation --> <tx:annotation-driven/> <!-- ViewResolver bean config for mapping strings to jsp views --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- Example: a logical view name of 'showMessage' is mapped to '/WEB-INF/jsp/showMessage.jsp' --> <property name="order" value="1" /> <property name="prefix" value="/WEB-INF/view/" /> <property name="suffix" value=".jsp" /> </bean> <!-- File Upload bean config--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- set the maximum file size in bytes --> <property name="maxUploadSize" value="1000000"/> </bean> <!--Excel and PDF xml view configuration --> <!--disabling for jUnit test. --> <bean class="org.springframework.web.servlet.view.XmlViewResolver"> <property name="order" value="0" /> <property name="location" value="/excel-pdf-config.xml"/> </bean> <mvc:view-controller path="/" view-name="/index"/> <mvc:view-controller path="/index.html" view-name="/index"/> <mvc:view-controller path="/login.html" view-name="/form/login"/> <mvc:view-controller path="/about.html" view-name="/about/about"/> <mvc:view-controller path="/file.html" view-name="/file/file"/> <mvc:view-controller path="/jdbc.html" view-name="/jdbc/jdbc"/> <mvc:view-controller path="/email.html" view-name="/email/email"/> <mvc:view-controller path="/rest.html" view-name="/rest/rest"/> <mvc:view-controller path="/orm.html" view-name="/orm/orm"/> <mvc:view-controller path="/jstl.html" view-name="/jstl/jstl"/> <mvc:view-controller path="/scope.html" view-name="/scope/scope"/> <mvc:view-controller path="/cookie.html" view-name="/cookie/cookieView"/> <mvc:view-controller path="/security.html" view-name="/security/security"/> <mvc:view-controller path="/security/admin.html" view-name="/security/admin"/> <mvc:view-controller path="/angularIndex.html" view-name="/angularjs/angularindex"/> <mvc:view-controller path="/angularjson.html" view-name="/angularjs/angularjson"/> <mvc:view-controller path="/expressions.html" view-name="/angularjs/expressions"/> <mvc:view-controller path="/ng-bind-model.html" view-name="/angularjs/ng-bind-model"/> <mvc:view-controller path="/ng-class.html" view-name="/angularjs/ng-class"/> <mvc:view-controller path="/ng-click-show.html" view-name="/angularjs/ng-click-show"/> <mvc:view-controller path="/ng-if-switch.html" view-name="/angularjs/ng-if-switch"/> <mvc:view-controller path="/ng-init.html" view-name="/angularjs/ng-init"/> <mvc:view-controller path="/ng-repeat.html" view-name="/angularjs/ng-repeat"/> <mvc:view-controller path="/two-way-binding.html" view-name="/angularjs/two-way-binding"/> <mvc:view-controller path="/angularDI.html" view-name="/angularjs/angularDI"/> <mvc:view-controller path="/ng-controller.html" view-name="/angularjs/ng-controller"/> <mvc:view-controller path="/angularfilters.html" view-name="/angularjs/filters"/> <mvc:view-controller path="/angularvalidation.html" view-name="/angularjs/validation"/> <mvc:view-controller path="/angularrouting.html" view-name="/angularjs/routing"/> <mvc:view-controller path="/angularhttpresource.html" view-name="/angularjs/httpresource"/> <mvc:view-controller path="/customdirective.html" view-name="/angularjs/customdirective"/> <mvc:view-controller path="/html5.html" view-name="/html5/html5"/> <!-- Static Resources Configuration (get access to static sources such as CSS and JavaScript files) --> <mvc:resources mapping="/resources/**" location="/resources/" /> <!-- themes can be put in different folder such as <mvc:resources mapping="/resources/**" location="/resources/themeBlue" /> <mvc:resources mapping="/resources/**" location="/resources/themeGreen" /> --> <mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/interceptorCall/*"/> <!--need to use ' /** ' not ' /* ' if you want to intercept all requests.--> <!--<mvc:mapping path="/**"/>--> <bean class="ru.javastudy.mvcHtml5Angular.mvc.interceptors.SiteInterceptor"/> </mvc:interceptor> <mvc:interceptor> <mvc:mapping path="/*" /> <bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"> <property name="paramName" value="languageVar" /> </bean> </mvc:interceptor> </mvc:interceptors> <bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver"> <property name="defaultLocale" value="ru" /> <!-- cookieMaxAge in seconds. if you set it to -1, the cookie will be deleted when browser is closed) --> <property name="cookieMaxAge" value="100000"/> </bean> <!-- MessageSource ReloadableResourceBundleMessageSource configuration --> <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> <property name="basenames" value="classpath:/locales/messages"/> <property name="cacheSeconds" value="1"/> <property name="defaultEncoding" value="UTF-8" /> </bean> </beans> |
Вот эту конфигурацию мы будем преобразовывать в Java класс с использованием аннотаций.
4. MVCConfig
Для начала приведу полный файл MVCConfig.java, который соответствует mvc-config.xml:
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package ru.javastudy.mvcHtml5Angular.javaconfig; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.context.support.ReloadableResourceBundleMessageSource; import org.springframework.core.io.ClassPathResource; import org.springframework.core.io.Resource; import org.springframework.http.converter.HttpMessageConverter; import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; import org.springframework.web.multipart.commons.CommonsMultipartResolver; import org.springframework.web.servlet.config.annotation.*; import org.springframework.web.servlet.i18n.CookieLocaleResolver; import org.springframework.web.servlet.i18n.LocaleChangeInterceptor; import org.springframework.web.servlet.view.InternalResourceViewResolver; import org.springframework.web.servlet.view.XmlViewResolver; import ru.javastudy.mvcHtml5Angular.mvc.interceptors.SiteInterceptor; import java.util.List; import java.util.Locale; /** * Created for JavaStudy.ru on 28.05.2016. * mvc-config.xml analogue */ @EnableWebMvc //<mvc:annotation-driven> @Configuration @ComponentScan(basePackages = {"ru.javastudy.mvcHtml5Angular.mvc"}) //<context:component-scan base-package=''> public class MVCConfig extends WebMvcConfigurerAdapter { /** * <mvc:resources mapping="/resources/**" location="/resources/" /> */ @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/resources/**").addResourceLocations("/resources/"); } /** * bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> */ @Bean public InternalResourceViewResolver jspViewResolver() { InternalResourceViewResolver viewResolver = new InternalResourceViewResolver(); viewResolver.setOrder(1); viewResolver.setPrefix("/WEB-INF/view/"); viewResolver.setSuffix(".jsp"); return viewResolver; } /** * <mvc:view-controller path="/about.html" view-name="/about/about"/> */ @Override public void addViewControllers(ViewControllerRegistry registry) { super.addViewControllers(registry); registry.addViewController("/").setViewName("forward:/index.html"); registry.addViewController("/about.html").setViewName("/about/about"); registry.addViewController("/index.html").setViewName("/index"); registry.addViewController("/").setViewName("/index"); registry.addViewController("/index.html").setViewName("/index"); registry.addViewController("/login.html").setViewName("/form/login"); registry.addViewController("/about.html").setViewName("/about/about"); registry.addViewController("/file.html").setViewName("/file/file"); registry.addViewController("/jdbc.html").setViewName("/jdbc/jdbc"); registry.addViewController("/email.html").setViewName("/email/email"); registry.addViewController("/rest.html").setViewName("/rest/rest"); registry.addViewController("/orm.html").setViewName("/orm/orm"); registry.addViewController("/jstl.html").setViewName("/jstl/jstl"); registry.addViewController("/scope.html").setViewName("/scope/scope"); registry.addViewController("/cookie.html").setViewName("/cookie/cookieView"); registry.addViewController("/security.html").setViewName("/security/security"); registry.addViewController("/security/admin.html").setViewName("/security/admin"); registry.addViewController("/angularIndex.html").setViewName("/angularjs/angularindex"); registry.addViewController("/angularjson.html").setViewName("/angularjs/angularjson"); registry.addViewController("/expressions.html").setViewName("/angularjs/expressions"); registry.addViewController("/ng-bind-model.html").setViewName("/angularjs/ng-bind-model"); registry.addViewController("/ng-class.html").setViewName("/angularjs/ng-class"); registry.addViewController("/ng-click-show.html").setViewName("/angularjs/ng-click-show"); registry.addViewController("/ng-if-switch.html").setViewName("/angularjs/ng-if-switch"); registry.addViewController("/ng-init.html").setViewName("/angularjs/ng-init"); registry.addViewController("/ng-repeat.html").setViewName("/angularjs/ng-repeat"); registry.addViewController("/two-way-binding.html").setViewName("/angularjs/two-way-binding"); registry.addViewController("/angularDI.html").setViewName("/angularjs/angularDI"); registry.addViewController("/ng-controller.html").setViewName("/angularjs/ng-controller"); registry.addViewController("/angularfilters.html").setViewName("/angularjs/filters"); registry.addViewController("/angularvalidation.html").setViewName("/angularjs/validation"); registry.addViewController("/angularrouting.html").setViewName("/angularjs/routing"); registry.addViewController("/angularhttpresource.html").setViewName("/angularjs/httpresource"); registry.addViewController("/customdirective.html").setViewName("/angularjs/customdirective"); registry.addViewController("/html5.html").setViewName("/html5/html5"); } @Override public void configureMessageConverters(List<HttpMessageConverter<?>> converters) { converters.add(getJacksonHttpMessageConverter()); } @Bean(name = "jacksonHttpMessageConverter") public MappingJackson2HttpMessageConverter getJacksonHttpMessageConverter() { MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter(); converter.setPrettyPrint(true); return converter; } /** * <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> */ @Bean(name = "multipartResolver") public CommonsMultipartResolver getMultipartResolver() { CommonsMultipartResolver cmr = new CommonsMultipartResolver(); cmr.setMaxUploadSize(1000000); return cmr; } /** * <bean class="org.springframework.web.servlet.view.XmlViewResolver"> */ @Bean(name = "xmlViewResolver") public XmlViewResolver getXmlViewResolver() { XmlViewResolver xmlViewResolver = new XmlViewResolver(); Resource resource = new ClassPathResource("excel-pdf-config.xml");//note it in java resources, not webapp xmlViewResolver.setOrder(0); xmlViewResolver.setLocation(resource); return xmlViewResolver; } /** * <mvc:interceptors> */ @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(siteInterceptor).addPathPatterns("/interceptorCall/*"); registry.addInterceptor(getLocaleChangeInterceptor()).addPathPatterns("/*"); } @Bean(name = "localeChangeInterceptor") public LocaleChangeInterceptor getLocaleChangeInterceptor() { LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor(); localeChangeInterceptor.setParamName("languageVar"); return localeChangeInterceptor; } @Autowired private SiteInterceptor siteInterceptor; /** * <bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver"> */ @Bean(name = "localeResolver") public CookieLocaleResolver getLocaleResolver() { CookieLocaleResolver cookieLocaleResolver = new CookieLocaleResolver(); cookieLocaleResolver.setDefaultLocale(new Locale("ru")); cookieLocaleResolver.setCookieMaxAge(100000); return cookieLocaleResolver; } /** * <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> */ @Bean(name = "messageSource") public ReloadableResourceBundleMessageSource getMessageSource() { ReloadableResourceBundleMessageSource resource = new ReloadableResourceBundleMessageSource(); resource.setBasename("classpath:/locales/messages"); resource.setCacheSeconds(1); resource.setDefaultEncoding("UTF-8"); return resource; } } |
Теперь разобьем их по частям.
4.1. context:component-scan
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<context:component-scan base-package="ru.javastudy.mvcHtml5Angular.mvc" /> |
и
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@ComponentScan(basePackages = {"ru.javastudy.mvcHtml5Angular.mvc"}) |
4.2. mvc:annotation-driven и mvc:message-converters
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<mvc:annotation-driven> <!--use int RestController to produce pretty json response--> <mvc:message-converters> <bean id="jacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="prettyPrint" value="true" /> </bean> </mvc:message-converters> </mvc:annotation-driven> |
и
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@EnableWebMvc //<mvc:annotation-driven> public class MVCConfig extends WebMvcConfigurerAdapter { ... @Override public void configureMessageConverters(List<HttpMessageConverter<?>> converters) { converters.add(getJacksonHttpMessageConverter()); } |
4.3. tx:annotation-driven
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<!-- activate @Transactional JPA annotation --> <tx:annotation-driven/> |
и
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@EnableTransactionManagement public class MVCConfig extends WebMvcConfigurerAdapter { |
4.4. bean class = «org.springframework.web.servlet.view.InternalResourceViewResolver»
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<!-- ViewResolver bean config for mapping strings to jsp views --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- Example: a logical view name of 'showMessage' is mapped to '/WEB-INF/jsp/showMessage.jsp' --> <property name="order" value="1" /> <property name="prefix" value="/WEB-INF/view/" /> <property name="suffix" value=".jsp" /> </bean> |
Этот же бин в java config:
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@Bean public InternalResourceViewResolver jspViewResolver() { InternalResourceViewResolver viewResolver = new InternalResourceViewResolver(); viewResolver.setOrder(1); viewResolver.setPrefix("/WEB-INF/view/"); viewResolver.setSuffix(".jsp"); return viewResolver; } |
4.5. bean id = «multipartResolver» class=»org.springframework.web.multipart.commons.CommonsMultipartResolver»
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<!-- File Upload bean config--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- set the maximum file size in bytes --> <property name="maxUploadSize" value="1000000"/> </bean> |
аналог
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@Bean(name = "multipartResolver") public CommonsMultipartResolver getMultipartResolver() { CommonsMultipartResolver cmr = new CommonsMultipartResolver(); cmr.setMaxUploadSize(1000000); return cmr; } |
4.6. bean class = «org.springframework.web.servlet.view.XmlViewResolver»
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<bean class="org.springframework.web.servlet.view.XmlViewResolver"> <property name="order" value="0" /> <property name="location" value="/excel-pdf-config.xml"/> </bean> |
Здесь стоит обратить внимание, что excel-pdf-config.xml не переписывался, а был перенесен в src/resources. Он выглядит так:
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<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" 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"> <!-- When a controller returns excelDocument render the model with the spring.mvc.excelpdf.ExcelDocument class --> <bean id="excelDocument" class="ru.javastudy.mvcHtml5Angular.mvc.excelpdf.ExcelDocument" /> <!-- When a controller returns pdfDocument render the model with the spring.mvc.excelpdf.PDFDocument class --> <bean id="pdfDocument" class="ru.javastudy.mvcHtml5Angular.mvc.excelpdf.PDFDocument"/> </beans> |
Аналог в Java конфигурации следующий:
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@Bean(name = "xmlViewResolver") public XmlViewResolver getXmlViewResolver() { XmlViewResolver xmlViewResolver = new XmlViewResolver(); Resource resource = new ClassPathResource("excel-pdf-config.xml");//note it in java resources, not webapp xmlViewResolver.setOrder(0); xmlViewResolver.setLocation(resource); return xmlViewResolver; } |
4.7. mvc:view-controller path = «/» view-name = «/index»
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<mvc:view-controller path="/" view-name="/index"/> <mvc:view-controller path="/index.html" view-name="/index"/> <mvc:view-controller path="/login.html" view-name="/form/login"/> <mvc:view-controller path="/about.html" view-name="/about/about"/> <mvc:view-controller path="/file.html" view-name="/file/file"/> //и т.д. |
в классе:
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@Override public void addViewControllers(ViewControllerRegistry registry) { super.addViewControllers(registry); registry.addViewController("/").setViewName("forward:/index.html"); registry.addViewController("/about.html").setViewName("/about/about"); registry.addViewController("/index.html").setViewName("/index"); //и т.д. |
4.8. mvc:resources mapping = «/resources/**» location = «/resources/»
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<mvc:resources mapping="/resources/**" location="/resources/" /> |
эта же настройка в программной конфигурации:
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@Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/resources/**").addResourceLocations("/resources/"); } |
4.9. mvc:interceptors
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<mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/interceptorCall/*"/> <!--need to use ' /** ' not ' /* ' if you want to intercept all requests.--> <!--<mvc:mapping path="/**"/>--> <bean class="ru.javastudy.mvcHtml5Angular.mvc.interceptors.SiteInterceptor"/> </mvc:interceptor> <mvc:interceptor> <mvc:mapping path="/*" /> <bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"> <property name="paramName" value="languageVar" /> </bean> </mvc:interceptor> </mvc:interceptors> |
Перехватчики с помощью Java кода:
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@Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(siteInterceptor).addPathPatterns("/interceptorCall/*"); registry.addInterceptor(getLocaleChangeInterceptor()).addPathPatterns("/*"); } @Bean(name = "localeChangeInterceptor") public LocaleChangeInterceptor getLocaleChangeInterceptor() { LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor(); localeChangeInterceptor.setParamName("languageVar"); return localeChangeInterceptor; } @Autowired private SiteInterceptor siteInterceptor; |
где SiteInterceptor — компонент (бин) из пакета interceptors. Описан в теме о перехватчиках (см. содержание).
4.10. bean id = «localeResolver» class = «org.springframework.web.servlet.i18n.CookieLocaleResolver»
Переключение локали
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<bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver"> <property name="defaultLocale" value="ru" /> <!-- cookieMaxAge in seconds. if you set it to -1, the cookie will be deleted when browser is closed) --> <property name="cookieMaxAge" value="100000"/> </bean> |
или
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@Bean(name = "localeResolver") public CookieLocaleResolver getLocaleResolver() { CookieLocaleResolver cookieLocaleResolver = new CookieLocaleResolver(); cookieLocaleResolver.setDefaultLocale(new Locale("ru")); cookieLocaleResolver.setCookieMaxAge(100000); return cookieLocaleResolver; } |
4.11. bean id = «messageSource» class = «org.springframework.context.support.ReloadableResourceBundleMessageSource»
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<!-- MessageSource ReloadableResourceBundleMessageSource configuration --> <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> <property name="basenames" value="classpath:/locales/messages"/> <property name="cacheSeconds" value="1"/> <property name="defaultEncoding" value="UTF-8" /> </bean> |
MessageSource в java классе выглядит так:
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@Bean(name = "messageSource") public ReloadableResourceBundleMessageSource getMessageSource() { ReloadableResourceBundleMessageSource resource = new ReloadableResourceBundleMessageSource(); resource.setBasename("classpath:/locales/messages"); resource.setCacheSeconds(1); resource.setDefaultEncoding("UTF-8"); return resource; } |
Другие части перехода с xml на Java конфигурацию
Spring MVC Java Config (конфигурация с аннотациями) для web.xml
Spring MVC Java Config (конфигурация с аннотациями) для Spring Security (security-config.xml)
Spring MVC Java Config (конфигурация с аннотациями) для application-context.xml
Исходный код
23. Annotations config — проект в IDEA
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