小编Ram*_*amu的帖子

在我的应用程序中，我们使用多个数据源，因此我们有多个数据库配置（会话工厂）。在我们的本地（whindows 机器）上一切正常，但是当我们将 war 文件部署到 Unix 应用程序时失败，出现以下异常：

org.springframework.beans.factory.BeanCreationException：创建名为“cpnRepository”的 bean 时出错：自动装配依赖项的注入失败；嵌套异常是 org.springframework.beans.factory.BeanCreationException：无法自动装配字段：私有 org.hibernate.SessionFactory org.npcc.ccms.dao.GenericDB1Dao.sessionFactory; 嵌套异常是 org.springframework.beans.factory.BeanCreationException：创建名为“DB1Config”的 bean 时出错：自动装配依赖项的注入失败；嵌套异常是 org.springframework.beans.factory.BeanCreationException：无法自动装配字段：私有 org.hibernate.SessionFactory org.npcc.ccms.config.db.DB1Config.sessionFactory; 嵌套异常是 org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creation bean with name '

这是 dao 的实现：

@Repository("cpnRepository")
public class ProgramNodeDaoImpl extends GenericDB1Dao<Integer, CustomProgramNode> implements CPNRepositoryDao {
    @Override
    public List<CustomProgramNode> findAllNodes() {
        Criteria criteria = createEntityCriteria();
        return (List<CustomProgramNode>) criteria.list();
    }

    @Override
    public List<CustomProgramNode> findByStatus(String status) {
        Query query = getSession().createQuery("from CustomProgramNode where status = :status");
        query.setParameter("status", status);
        List<CustomProgramNode> list = query.list();
        return list;        

    }

}

DB1 的通用 …

我们的应用程序需要处理多个数据库.我们尝试通过Hibernate配置配置多个数据源,并为数据库1添加了两个配置,为数据库2添加了第二个配置.此配置失败,并出现以下异常

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'DB1TransactionManager' defined in class path resource [org/npcc/ccms/config/db/HibernateConfig4DB1.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type [org.hibernate.SessionFactory]: : No qualifying bean of type [org.hibernate.SessionFactory] is defined: expected single matching bean but found 2: AgrgtrSessionFactory,HRSessionFactory,StageSessionFactory; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [org.hibernate.SessionFactory] is defined: expected single matching bean but found 3: DB1SessionFactory,DB2SessionFactory
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:747)
    org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:462)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:530)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) …

我们如何将20个字母的字符串缩小/编码为6个字母.我发现很少有算法可以解决数据压缩问题,如RLE,算术编码,通用代码,但它们都不能保证6个字母.

原始字符串可以包含字符AZ(大写),0-9和短划线.