我有这样的项目结构:
的persistence.xml:
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="todos" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jboss/datasources/PostgreSQLDS</jta-data-source>
<class>server.entity.Holiday</class>
<properties>
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.hbm2ddl.auto" value="update" />
</properties>
</persistence-unit>
</persistence>
Web.xml(如您所见,我正在使用上下文类,我将使用JSON):
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
metadata-complete="false">
<display-name>Spring MVC Application</display-name>
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<init-param>
<param-name>contextClass</param-name>
<param-value>
org.springframework.web.context.support.AnnotationConfigWebApplicationContext
</param-value>
</init-param>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>server.config</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
WebAppConfig.class:
@Configuration
@EnableWebMvc
@ComponentScan("server")
public class WebAppConfig extends WebMvcConfigurerAdapter {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/pages/**").addResourceLocations("/pages/");
}
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
converter.setObjectMapper(new ObjectMapper());
converter.setSupportedMediaTypes(Collections.singletonList(MediaType.APPLICATION_JSON));
converters.add(converter);
}
@Bean
public InternalResourceViewResolver setupViewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/pages/");
resolver.setSuffix(".jsp");
resolver.setViewClass(JstlView.class);
return resolver;
}
}
HolidayController.class
@RestController
@RequestMapping("/holidays")
public class HolidayController {
@Autowired
private HolidayRepository holidayRepository;
@RequestMapping(value = "", method = RequestMethod.GET)
@ResponseBody
public List<Holiday> getAllHolidays() {
// List<User> list = userRepository.findAll();
return holidayRepository.findAll();
}
HolidayRepository.class:
@Repository
public interface HolidayRepository extends JpaRepository<Holiday, Long> {
}
我有这个错误: org.springframework.beans.factory.NoSuchBeanDefinitionException:没有为依赖项找到[server.repository.HolidayRepository]类型的限定bean:期望至少有1个bean符合此依赖项的autowire候选者。依赖注释:{@ org.springframework.beans.factory.annotation.Autowired(required = true)}
请帮帮我。
答案 0 :(得分:1)
我似乎在你的JavaConfig中需要@EnableJpaRepositories
见第3.2节 - &gt; http://docs.spring.io/spring-data/jpa/docs/1.9.4.RELEASE/reference/html/#repositories.definition
创建一个新的JavaConfig类:
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
@Configuration
@EnableJpaRepositories
class JpaSpringDataConfig {}
或者将其添加到您的XML配置中:
<jpa:repositories base-package="server.repository"/>
由于您的日志显示它需要WebApplicationInitializer,请删除您的web.xml并包含类似的类:
public class RestWebApplicationInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class<?>[] { JpaSpringDataConfig.class };
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class<?>[] { WebAppConfig.class };
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}
答案 1 :(得分:0)
将注释@Repository
添加到HolidayRepository interface.