当有互联网连接时，Hibernate工作正常 . 但是当没有互联网连接时，它就会给我
未设置'hibernate.dialect'时，对DialectResolutionInfo的访问不能为空
错误 . 我认为我的应用程序试图在运行时访问互联网连接 . 我得到的细节错误如下： -
2015年12月22日下午6:17:43 org.hibernate.engine.jdbc.connections.internal.ConnectionProviderInitiator initiateService WARN：HHH000181：遇到没有合适的连接提供程序，假设应用程序将提供连接初始SessionFactory创建failed.org.hibernate . HibernateException：当'hibernate.dialect'未设置org.hibernate.HibernateException时，对DialectResolutionInfo的访问不能为null当'hibernate.dialect'未设置为org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl时，对DialectResolutionInfo的访问不能为null .determineDialect（DialectFactoryImpl.java:104）atg.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect（DialectFactoryImpl.java:71）org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure（JdbcServicesImpl.java） ：209）org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService（StandardServiceRegistryImpl.java:111）at org.hibernate.service.internal.AbstractServiceRegistryImpl.initia org.hibernate.cfg中org.hibernate.cfg.Configuration.buildTypeRegistrations（Configuration.java:1885）上的org.hibernate.service.internal.AbstractServiceRegistryImpl.getService（AbstractServiceRegistryImpl.java:206）中的lizeService（AbstractServiceRegistryImpl.java:234） com.pos.admin.admin.admin_module.admin_module.admin_module.hibernatefiles.hibernate的com.pos.admin.admin_module.admin_module.hibernatefiles.hibernate.HibernateUtil.buildSessionFactory(HibernateUtil.java:32）中的.Configuration.buildSessionFactory（Configuration.java:1843） com.pos.admin.admin.admin_module.main.AdminModule.start（AdminModule.java:21）中的.HibernateUtil.getSessionFactory（HibernateUtil.java:44）at com.sun.javafx.application.LauncherImpl.lambda $ launchApplication1 $ 163（Unknown Source ）com.sun.javafx.application.PlatformImpl.lambda $ runAndWait $ 176（未知来源）at com.sun.javafx.application.PlatformImpl.lambda $ null $ 174（未知来源）at java.security.AccessController.doPrivileged（Native Method） ）在com.sun.javafx.application.PlatformImpl.lamb com.sun.glass.ui.InvokeLaterDispatcher的$ $ runLater $ 175（未知来源）com.sun.glass的com.sun.glass.ui.win.WinApplication._runLoop（本地方法）的$ Future.run（未知来源） java.lang.Thread.run中的.ui.win.WinApplication.lambda $ null $ 149（未知来源）（未知来源）sun.reflect.NativeMethodAccessorImpl.invoke0上的应用程序启动方法java.lang.reflect.InvocationTargetException中的异常（本机方法） ）位于com.un.javafx.application.LauncherImpl的java.lang.reflect.Method.invoke（未知来源）的sun.reflect.DelegatingMethodAccessorImpl.invoke（未知来源）的sun.reflect.NativeMethodAccessorImpl.invoke（未知来源） . 在sun.reflect的sun.reflect.NativeMethodAccessorImpl.invoke（未知来源）的sun.reflect.NativeMethodAccessorImpl.invoke0（本地方法）的com.sun.javafx.application.LauncherImpl.launchApplication（未知来源）中的launchApplicationWithArgs（未知来源） . DelegatingMethodAccessorImpl.invoke（未知来源）at java.lang.reflect.Method.invoke（Unknown S来自sun.launcher.LauncherHelper $ FXHelper.main（未知来源）引起：java.lang.RuntimeException：com.sun.javafx.application.LauncherImpl.launchApplication1（未知来源）中com.sun的Application start方法中的异常java.lang.Thread.run中的.javafx.application.LauncherImpl.lambda $ launchApplication $ 156（未知来源）（未知来源）引起：com.pos.admin.admin_module.admin_module.hibernatefiles.hibernate中的java.lang.ExceptionInInitializerError . HibernateUtil.buildSessionFactory（HibernateUtil.java:39）位于com.pos.admin.admin.admin_module.main.AdminModule.start的com.pos.admin.admin_module.admin_module.hibernatefiles.hibernate.HibernateUtil.getSessionFactory(HibernateUtil.java:44） AdminModule.java:21）com.sun.javafx.application.LauncherImpl.lambda $ launchApplication1 $ 163（未知来源）com.sun.javafx.application.PlatformImpl.lambda $ runAndWait $ 176（未知来源）com.sun.javafx java.security.AccessController上的.application.PlatformImpl.lambda $ null $ 174（未知来源） . comPrivileged（Native Method）位于com.sun.glass的com.sun.glass.ui.InvokeLaterDispatcher $ Future.run（未知来源）com.sun.javafx.application.PlatformImpl.lambda $ runLater $ 175（未知来源） . ui.win.WinApplication._runLoop（Native Method）at com.sun.glass.ui.win.WinApplication.lambda $ null $ 149（Unknown Source）... 1更多引起：org.hibernate.HibernateException：访问DialectResolutionInfo不能'hibernate.dialect'未设置为时为null在org.hibernate的org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect（DialectFactoryImpl.java:71）中的org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect（DialectFactoryImpl.java:104） . org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService（位于org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService（StandardServiceRegistryImpl.java:111）的engine.jdbc.internal.JdbcServicesImpl.configure（JdbcServicesImpl.java:209）位于org.hibernate.cfg.Configuration.buildTypeRegistrations（Configuration.java:1885）的org.hibernate.cfg.Configuration上的org.hibernate.service.internal.AbstractServiceRegistryImpl.getService（AbstractServiceRegistryImpl.java:206）中的AbstractServiceRegistryImpl.java:234） .buildSessionFactory（Configuration.java:1843）at com.pos.admin.admin_module.admin_module.hibernatefiles.hibernate.HibernateUtil.buildSessionFactory（HibernateUtil.java:32）... 11 more异常运行应用程序com.pos.admi n.admin_module.main.AdminModule
我的pom.xml文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.pos.admin.admin_module</groupId>
<artifactId>admin_module</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>admin_module</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<!-- <build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build> -->
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- <dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.0.5.Final</version>
</dependency> -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.5.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.37</version>
</dependency>
<!-- <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId>
<version>4.3.5.Final</version> </dependency> -->
<!-- <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId>
<version>5.2.2.Final</version> </dependency> -->
<!-- <dependency> <groupId>javax.el</groupId> <artifactId>javax.el-api</artifactId>
<version>2.2.4</version> </dependency> <dependency> <groupId>org.glassfish.web</groupId>
<artifactId>javax.el</artifactId> <version>2.2.4</version> </dependency> -->
</dependencies>
</project>
我的hibernate配置（hibernate.cfg.xml）文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/point_of_sales</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">
</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.current_session_context_class">thread</property>
<property name="hibernate.show_sql">true</property>
<!--
<property name="hbm2ddl.auto">update</property> -->
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.Category"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.ProductHeader"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.PurchaseDetail"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.PurchaseHeader"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.SalesDetail"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.SalesHeader"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.Settings"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.Unit"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.User"/>
<mapping class="com.pos.admin.admin_module.hibernatefiles.dto.Supplier"/>
<!-- <mapping class="com.pos.storekeeper.storekeeper_module.hibernateFiles.dto.Supplier"/>
<mapping class="com.pos.storekeeper.storekeeper_module.hibernateFiles.dto.PurchaseHeader"/>
<mapping class="com.pos.storekeeper.storekeeper_module.hibernateFiles.dto.ProductHeader"/>
<mapping class="com.pos.storekeeper.storekeeper_module.hibernateFiles.dto.Category"/>
<mapping class="com.pos.storekeeper.storekeeper_module.hibernateFiles.dto.Unit"/> -->
<!-- <mapping class="com.pos.storekeeper.storekeeper_module.hibernateFiles.dto.User"/> -->
<!-- <mapping class="com.pos.admin.admin_module.admin_module.main.Cart1"/> -->
</session-factory>
</hibernate-configuration>
我在HibernateUtil类中创建 Configuration 和 Session 对象
public class HibernateUtil {
private static SessionFactory sessionFactory;
private static SessionFactory buildSessionFactory() {
try {
// Create the SessionFactory from hibernate-annotation.cfg.xml
Configuration configuration = new Configuration();
try{
configuration.configure("hibernate.cfg.xml");
}catch(Exception e){
System.out.println("Exception while handling configureation file :" + e.getMessage());
System.out.println("asfsdaf " + configuration);
}
System.out.println("Hibernate Annotation Configuration loaded");
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
System.out.println("Hibernate Annotation serviceRegistry created");
SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);
return sessionFactory;
}
catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex);
ex.printStackTrace();
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
if(sessionFactory == null) sessionFactory = buildSessionFactory();
return sessionFactory;
}
public static void closeSessionFactory(){
if(!sessionFactory.isClosed()){
System.out.println("Closing SessionFactory");
sessionFactory.close();
}
}
}
我想解决这个问题，因为互联网连接无法始终可用 . 谢谢
2 回答
尝试从此删除
SessionFactory：成为：
或者像这样添加
buildSessionFactory()：要使用hibernate离线，你必须在xml映射和配置文件中更改你的dtd . 确保hibernate jar在你的类路径中
配置文件：
http://www.journaldev.com/2959/how-to-configure-hibernate-cfg-xml-to-work-offline