我使用 Spring 版本 3.2.2.RELEASE。
我想用 hibernate 创建一个 webapp 并具有以下配置：
public class LifepulseServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { PersistenceConfig.class};
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] { LifepulseWebConfig.class };
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
@Override
protected WebApplicationContext createRootApplicationContext() {
return super.createRootApplicationContext();
}
}
我的两个带有 @Configuration 注释的文件如下所示：
我的PersistenceConfig应该用于 ContextLoaderListener：
@Configuration
@EnableTransactionManagement(proxyTargetClass=true, mode=AdviceMode.PROXY)
public class PersistenceConfig{
Logger logger = LoggerFactory.getLogger(PersistenceConfig.class);
/** The Application Context. */
@Autowired
ApplicationContext context;
/**
* Gets the database url.
*
* @return the database url
*/
@Bean(name="databaseUrl")
public String getDatabaseUrl(){
return "jdbc:mysql://localhost/lifepulse";
}
/**
* Gets the session factory properties.
*
* @return the session factory properties
*/
@Bean(name="sessionFactoryProperties")
public Properties getSessionFactoryProperties(){
Properties props = new Properties();
props.put("hibernate.dialect", MySQL5InnoDBDialect.class.getName());
props.put("hibernate.hbm2ddl.auto", "create-drop");
props.put("hibernate.show_sql", "true");
props.put("hibernate.format_sql", "true");
return props;
}
/** The Constant ANNOTATED_CLASSES. */
@SuppressWarnings("unchecked")
private static final Class<? extends Serializable>[] ANNOTATED_CLASSES=new Class[]{
Melder.class,
LogEntry.class
};
/**
* Gets the annotated classes.
*
* @return the annotated classes
*/
private static Class<? extends Serializable>[] getAnnotatedClasses(){
return ANNOTATED_CLASSES;
}
/**
* Gets the data source.
* This bean represents the application's MYSQL datasource, without using xml.
*
* @return the data source
*/
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUrl(getDatabaseUrl());
dataSource.setUsername("lifepulse");
dataSource.setPassword("lifepulse");
return dataSource;
}
/**
* Session factory.
* This bean represents the Hibernate Session Factory. By declaring this bean
* it can easily be injected into Spring DAOs later on.
*
* @return the local session factory bean
*/
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean factory = new LocalSessionFactoryBean();
factory.setAnnotatedClasses(getAnnotatedClasses());
factory.setHibernateProperties(getSessionFactoryProperties());
factory.setDataSource(dataSource());
return factory;
}
@Bean()
public GenericDao genericDao() {
return new HibernateDaoImpl();
}
@Bean
PlatformTransactionManager txManager(){
HibernateTransactionManager htm = new HibernateTransactionManager(sessionFactory().getObject());
return htm;
}
}
我的LifepulseWebConfig应该用于 DispatcherSerlvet：
@Configuration
@EnableWebMvc
@ComponentScan(value= {"com.ansiworks.lifepulse.controllers"})
@EnableTransactionManagement(proxyTargetClass=true, mode=AdviceMode.PROXY)
public class LifepulseWebConfig extends WebMvcConfigurerAdapter{
@Autowired
ApplicationContext context;
@Bean
ViewResolver viewResolver(){
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
//resolver.setPrefix("");
resolver.setSuffix(".jsp");
return resolver;
}
@Bean
MainService mainService(){
return new MainServiceImpl();
}
}
此配置不起作用。dispathcer servlet 不会加载我的 PersistenceConfig，因此 bean 不会继承到 LifepulseWebConfig。
但是：当我将PersistenceConfig添加到方法LifepulseServletInitializer#getServletConfigClasses()的类数组中时，一切正常。但是......我不能以这种方式使用sprint-security......
我究竟做错了什么！？为什么 ContextLoaderListener 不读取LifepulseServletInitializer#getRootConfigClasses()返回的配置类？
我也尝试过这种方式（没有LifepulseServletInitializer），效果相同。我的PersistenceConfig的 bean根本没有加载......
public class MyWebAppInitializer implements WebApplicationInitializer {
@Override
public void onStartup(ServletContext container) {
// Create the 'root' Spring application context
AnnotationConfigWebApplicationContext rootContext =
new AnnotationConfigWebApplicationContext();
rootContext.register(PersistenceConfig.class);
// Manage the lifecycle of the root application context
container.addListener(new ContextLoaderListener(rootContext));
// Create the dispatcher servlet's Spring application context
AnnotationConfigWebApplicationContext dispatcherContext =
new AnnotationConfigWebApplicationContext();
dispatcherContext.register(LifepulseWebConfig.class);
// Register and map the dispatcher servlet
ServletRegistration.Dynamic dispatcher =
container.addServlet("dispatcher", new DispatcherServlet(dispatcherContext));
dispatcher.setLoadOnStartup(1);
dispatcher.addMapping("/");
}
}