使用jdk 1.8
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:
为什么错误鼓励以及如何解决它?
的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>
产物-servlet.xml中
<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/>
控制器的
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;
public class 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];
}
}
DataConfig
@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;
}
答案 0 :(得分:1)
您可能忘记将产品系列导入配置类
您可以将product-servlet.xml移动到'resources',以便在classpath中可用
所以你的servlet映射看起来像这个
<servlet>
<servlet-name>product</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/product-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>product</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
在您的配置中
@Configuration
@EnableTransactionManagement
@ComponentScan("com.kopylov.spring")
@PropertySource("classpath:/com/kopylov/spring/resources/app.properties")
@EnableJpaRepositories("com.kopylov.spring.repository")
@ImportResource("classpath:/product-servlet.xml")
public class DataConfig {
//..
}
BTW,最好不要混合匹配xml和java配置。由于java配置已经成为常态,您可以使用 WebMvcConfigurerAdapter
http://www.mkyong.com/spring-mvc/gradle-spring-4-mvc-hello-world-example-annotation/
答案 1 :(得分:1)
完美的解决方案对我有用:
将commons-configuration-1.6.jar添加到lib目录
答案 2 :(得分:0)
我认为你的调度程序在你的web.xml中没有正确配置。您没有任何<init-param>
代码。见文档
http://docs.spring.io/spring-flex/docs/1.0.x/reference/html/ch02s02.html
尝试编辑:
<servlet>
<servlet-name>product</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/product-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
编辑其他信息 另外,我相信您需要在@RequestMapping注释中添加一些映射,请参阅link:
答案 3 :(得分:0)
First clean your project and build again. Check whether you are getting this error.
Then Check with this: nested exception is java.lang.NoSuchMethodError:
org.springframework.core.annotation.AnnotatedElementUtils.hasAnnotation
我认为你错过了pom.xml中的一些存储库或pom.xml中不同版本的多个jar。有时你的春天的罐子彼此不相称。
添加:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-framework-bom</artifactId>
<version>4.3.3.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
从所有spring依赖项中删除4.3.3.RELEASE。
参考:http://docs.spring.io/spring/docs/current/spring-framework-reference/html/overview.html(阅读:Maven&#34;物料清单&#34;依赖性)
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<dependencies>
答案 4 :(得分:0)
首先检查所有构建路径错误是否都已解决。 在大多数情况下,如果无法解决构建路径错误,Spring初始化器会抛出此错误。