【发布时间】：2017-03-15 20:15:26
【问题描述】：
使用 jdk 1.8
- SpringMVC-4.3.3
- SpringCore-4.3.3
- javax.servlet-api-3.0.1
- spring-data-jpa:1.10.4
- hibernate-entitymanager:4.2.5.Final
- hibernate-core:4.2.5.Final
- Java 的简单日志外观：1.6.1
我遇到了这样的错误
org.springframework.beans.factory.BeanCreationException: 错误 用名字创建bean 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping'： 调用 init 方法失败；嵌套异常是 java.lang.NoSuchMethodError： org.springframework.core.annotation.AnnotatedElementUtils.hasAnnotation
我的问题：
为什么会出现错误以及如何解决？
web.xml
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>product</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>product</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
product-servlet.xml
<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"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
<context:component-scan base-package="com.kopylov.spring.controller" />
<mvc:annotation-driven/>
控制器
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class ProductController {
@RequestMapping
public String showHome(){
return "home";
}
}
AppInitializer
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
公共类 AppInitializer 扩展 AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses(){
return new Class<?>[]{
DataConfig.class
};
}
@Override
protected Class<?>[] getServletConfigClasses(){
return new Class<?>[0];
}
@Override
protected String[] getServletMappings(){
return new String[0];
}
}
数据配置
@Configuration
@EnableTransactionManagement
@ComponentScan("com.kopylov.spring")
@PropertySource("classpath:/com/kopylov/spring/resources/app.properties")
@EnableJpaRepositories("com.kopylov.spring.repository")
public class DataConfig {
private static final String PROP_DATABASE_DRIVER = "db.driver";
private static final String PROP_DATABASE_PASSWORD = "db.password";
private static final String PROP_DATABASE_URL = "db.url";
private static final String PROP_DATABASE_USERNAME = "db.username";
private static final String PROP_HIBERNATE_DIALECT = "db.hibernate.dialect";
private static final String PROP_HIBERNATE_SHOW_SQL = "db.hibernate.dialect";
private static final String PROP_ENTITYMANAGER_PACKAGES_TO_SCAN = "db.entitymanager.packages.to.scan";
private static final String PROP_HIBERNATE_HBM2DDL_AUTO = "db.hibernate.hbm2ddl.auto";
@Resource
private Environment env;
@Bean
public DataSource dataSource(){
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(env.getRequiredProperty(PROP_DATABASE_DRIVER));
dataSource.setUrl(env.getRequiredProperty(PROP_DATABASE_URL));
dataSource.setUsername(env.getRequiredProperty(PROP_DATABASE_USERNAME));
dataSource.setPassword(env.getRequiredProperty(PROP_DATABASE_PASSWORD));
return dataSource;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(){
LocalContainerEntityManagerFactoryBean emfb = new LocalContainerEntityManagerFactoryBean();
emfb.setDataSource(dataSource());
emfb.setPersistenceProviderClass(HibernatePersistence.class);
emfb.setPackagesToScan(env.getRequiredProperty(PROP_ENTITYMANAGER_PACKAGES_TO_SCAN));
emfb.setJpaProperties(getHibernateProperties());
return emfb;
}
@Bean
public JpaTransactionManager transactionManager(){
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
return transactionManager;
}
private Properties getHibernateProperties(){
Properties properties = new Properties();
properties.put(PROP_HIBERNATE_DIALECT, env.getRequiredProperty(PROP_HIBERNATE_DIALECT));
properties.put(PROP_HIBERNATE_SHOW_SQL, env.getRequiredProperty(PROP_HIBERNATE_SHOW_SQL));
properties.put(PROP_HIBERNATE_HBM2DDL_AUTO, env.getRequiredProperty(PROP_HIBERNATE_HBM2DDL_AUTO));
return properties;
}
【问题讨论】：
标签： java spring spring-mvc spring-data-jpa spring-annotations