我正在制作一个spring mvc项目，我遇到了以下错误。 我有一个基于java的配置，包含3个文件
AppConfig java
@EnableAutoConfiguration
@ComponentScan("com.gmc.controller")
@Import(DBConfig.class)
@EnableWebMvc
public class AppConfig extends WebMvcConfigurerAdapter {
@Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/view/");
resolver.setSuffix(".jsp");
return resolver;
}
@Bean
public MessageSource messageSource() {
ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
messageSource.setBasename("/WEB-INF/i18/messages");
messageSource.setDefaultEncoding("UTF-8");
return messageSource;
}
@Bean
public LocaleResolver localeResolver(){
CookieLocaleResolver resolver = new CookieLocaleResolver();
resolver.setDefaultLocale(new Locale("en"));
resolver.setCookieName("myLocaleCookie");
resolver.setCookieMaxAge(4800);
return resolver;
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
LocaleChangeInterceptor interceptor = new LocaleChangeInterceptor();
interceptor.setParamName("mylocale");
registry.addInterceptor(interceptor);
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/app-resources/**").addResourceLocations("/resources/");
}
}
WebAppInitializer
public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { AppConfig.class };
}
@Override
protected Class<?>[] getServletConfigClasses() {
return null;
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}
的DBConfig
@EnableAutoConfiguration
@EnableTransactionManagement
@PropertySource("classpath:database.properties")
public class DBConfig {
@Autowired
private Environment env;
@Bean
public HibernateTemplate hibernateTemplate() {
return new HibernateTemplate(sessionFactory());
}
@Bean
public SessionFactory sessionFactory() {
LocalSessionFactoryBean lsfb = new LocalSessionFactoryBean();
lsfb.setDataSource(getDataSource());
lsfb.setPackagesToScan("com.gmc.entity");
lsfb.setHibernateProperties(hibernateProperties());
try {
lsfb.afterPropertiesSet();
} catch (IOException e) {
e.printStackTrace();
}
return lsfb.getObject();
}
@Bean
public DataSource getDataSource() {
try {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName(env.getProperty("database.driver"));
dataSource.setUrl(env.getProperty("database.url"));
dataSource.setUsername(env.getProperty("database.root"));
dataSource.setPassword(env.getProperty("database.password"));
return dataSource;
}catch (Throwable ex) {
ex.printStackTrace();
throw new ExceptionInInitializerError(ex);
}
}
@Bean
public HibernateTransactionManager hibTransMan(){
return new HibernateTransactionManager(sessionFactory());
}
private Properties hibernateProperties() {
Properties properties = new Properties();
properties.put("hibernate.dialect", env.getProperty("hibernate.dialect"));
properties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
properties.put("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
return properties;
}
}
我有一个带有数据库详细信息的database.properties 我正在使用Intellij Idea，并且我已经启用了与远程主机的连接，我可以使用我的所有表创建一个hibernate.cfg.xml。 我的连接是远程数据库，而不是本地
database.driver = com.mysql.jdbc.Driver
database.url = jdbc:mysql://localhost:620xx/xxxxx
database.root = ebspma_gesdocent
database.password =xxxxxx
hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
hibernate.hbm2ddl.auto = update
hibernate.show_sql = true
当我运行项目时，我有以下错误
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1054)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:829)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4715)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1702)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:482)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:431)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
那么，这个问题是连接问题还是配置问题？ 感谢
更新 从调试到DBConfig中的返回dataSource
defaultAutoCommit = null
defaultReadOnly = null
defaultTransactionIsolation = -1
defaultQueryTimeout = null
defaultCatalog = null
cacheState = true
driver = null
driverClassName = "com.mysql.jdbc.Driver"
driverClassLoader = null
lifo = true
maxTotal = 8
maxIdle = 8
minIdle = 0
initialSize = 0
maxWaitMillis = -1
poolPreparedStatements = false
maxOpenPreparedStatements = -1
testOnCreate = false
testOnBorrow = true
testOnReturn = false
timeBetweenEvictionRunsMillis = -1
numTestsPerEvictionRun = 3
minEvictableIdleTimeMillis = 1800000
softMinEvictableIdleTimeMillis = -1
evictionPolicyClassName = "org.apache.commons.pool2.impl.DefaultEvictionPolicy"
testWhileIdle = false
password = "1-RCqITS=.9B"
url = "jdbc:mysql://localhost:xxxx/xxxx"
username = "ebspma_gesdocent"
validationQuery = null
validationQueryTimeout = -1
connectionInitSqls = null
accessToUnderlyingConnectionAllowed = false
maxConnLifetimeMillis = -1
logExpiredConnections = true
jmxName = null
enableAutoCommitOnReturn = true
rollbackOnReturn = true
disconnectionSqlCodes = null
fastFailValidation = false
connectionPool = null
connectionProperties = {Properties@4254} size = 0
dataSource = null
logWriter = {PrintWriter@4255}
abandonedConfig = null
closed = false
registeredJmxName = null
通过这个，显然已经读取了application.properties，但我没有以下细节
hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
hibernate.hbm2ddl.auto = update
hibernate.show_sql = true
我迷路了......