2016-06-07 96 views
0

我想知道是否有人可以帮助我使用tomcat(最有可能的)配置问题。当通过apache tomcat运行时,无法运行h2数据库查询8

我正在使用tomcat 8/eclipse Mars/h2数据库。建立一个项目(写入h2的示例独立应用程序)并且工作正常(我可以看到行被添加到数据库中)。但是,当我尝试在我的Web应用程序中使用相同的步骤时 - 我收到一个异常。

之前在这里张贴的问题,我看这些链接:。 http://j2stuff.blogspot.com/2012/11/setup-datasource-for-h2-and-postgres-on.html Configuring Liberty Profile to use H2 database https://keithrieck.wordpress.com/2010/01/28/h2-database-on-tomcat/ (以及更多:-(),但仍无法使我的申请工作

这里是调用堆栈

Jun 07, 2016 10:17:16 AM org.hibernate.jpa.internal.util.LogHelper logPersistenceUnitInformation 
INFO: HHH000204: Processing PersistenceUnitInfo [ 
    name: h2 
    ...] 
Jun 07, 2016 10:17:16 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure 
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!) 
Jun 07, 2016 10:17:16 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator 
INFO: HHH10001005: using driver [null] at URL [jdbc:h2:tcp://localhost/~/h2db] 
Jun 07, 2016 10:17:16 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator 
INFO: HHH10001001: Connection properties: {user=sa} 
Jun 07, 2016 10:17:16 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator 
INFO: HHH10001003: Autocommit mode: false 
Jun 07, 2016 10:17:16 AM org.hibernate.engine.jdbc.connections.internal.PooledConnections <init> 
INFO: HHH000115: Hibernate connection pool size: 20 (min=1) 
Jun 07, 2016 10:17:16 AM org.apache.catalina.core.StandardWrapperValve invoke 
SEVERE: Servlet.service() for servlet [com.cerner.cloud.setup.JerseyApplication] in context with path [/person-search-service] threw exception [A MultiException has 4 exceptions. They are: 
1. javax.persistence.PersistenceException: Unable to build entity manager factory 
2. java.lang.IllegalStateException: Unable to perform operation: create on com.cerner.cloud.service.InMemoryPersonServiceImpl 
3. java.lang.IllegalArgumentException: While attempting to resolve the dependencies of com.cerner.cloud.resource.PersonResource errors were found 
4. java.lang.IllegalStateException: Unable to perform operation: resolve on com.cerner.cloud.resource.PersonResource 
] with root cause 
java.sql.SQLException: No suitable driver found for jdbc:h2:tcp://localhost/~/h2db 
    at java.sql.DriverManager.getConnection(DriverManager.java:689) 
    at java.sql.DriverManager.getConnection(DriverManager.java:208) 
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionCreator.makeConnection(DriverManagerConnectionCreator.java:34) 
    at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:58) 
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections.addConnections(PooledConnections.java:106) 
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:40) 
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections.<init>(PooledConnections.java:19) 
    at org.hibernate.engine.jdbc.connections.internal.PooledConnections$Builder.build(PooledConnections.java:138) 
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildPool(DriverManagerConnectionProviderImpl.java:110) 
    at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:74) 
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:217) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:189) 
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145) 
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66) 
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) 
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) 
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:234) 

下面是从context.xml中的部分(在eclipse - >服务器)

<ResourceLink name="jdbc/h2" 
    auth="Container" 
    type="javax.sql.DataSource"/> 

下面是从server.xml中的部分(在Eclipse - >服务器)

<Resource name="h2" auth="Container" 
     global = "h2" 
     type="javax.sql.DataSource" 
     driverClassName="org.h2.Driver" 
     url="jdbc:h2:localhost:8082/h2DB" 
     username="sa" password="" 
     maxActive="20" maxIdle="10" maxWait="-1" 
     description="Datasource to person database" /> 

这里是我的persistence.xml

<?xml version="1.0" encoding="UTF-8" ?> 
<persistence xmlns="http://java.sun.com/xml/ns/persistence" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation="http://java.sun.com/xml/ns/persistence 
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> 

    <persistence-unit name="h2" transaction-type="RESOURCE_LOCAL"> 
    <provider>org.hibernate.ejb.HibernatePersistence</provider> 

<!-- <class>Entity.Person</class> --> 

    <properties> 
     <property name="connection.driver_class" value="org.h2.Driver"/> 
     <property name="hibernate.connection.url" value="jdbc:h2:tcp://localhost/~/h2db"/> 
     <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/> 
<!--   <property name="hibernate.hbm2ddl.auto" value="create-drop"/> --> 
     <property name="hibernate.show_sql" value="false" /> 
     <property name="javax.persistence.jdbc.user" value="sa" /> 

    </properties> 
</persistence-unit> 
</persistence> 

这里是单独工作在支架上的代码应用程序,我试图从Web应用程序调用

public class DBTalkImplementation { 

    EntityManagerFactory emf = Persistence.createEntityManagerFactory("h2"); 

    public DBTalkImplementation() 
    { 
     System.out.println("In default constructor"); 
     //Class.forName("org.h2.Driver"); 


    } 

    //Function to add row to the database (person table) 
    public void AddPerson(int AssociateID, String First, String Last) 
    { 
     System.out.println("inAddPerson"); 

     EntityManager em = emf.createEntityManager(); 
     EntityTransaction tx = em.getTransaction(); 
     tx.begin(); 
     System.out.println("DBTalkImplementation.CreatePerson"); 
     Person _person = new Person(AssociateID,First,Last); 
     System.out.println(_person.toString()); 
     em.persist(_person); 
     tx.commit(); 
     em.close(); 
    } 

最后 - 这是我的web应用程序中的函数n即失败

@Override 
    public void addPerson(Person person) { 
     System.out.println("addPerson "+person.getFirstName()); 

     DBTalkImplementation DB = new DBTalkImplementation(); 

     DB.AddPerson(person.getId(), person.getFirstName(), person.getLastName()); 
     dataStore.put(Integer.valueOf(person.getId()), person); 
    } 

任何有关该问题的帮助或至少对后续步骤的建议非常感谢。

回答

0

终于搞明白了。 2解决方案。 1)添加的jar文件中明确(在Eclipse运行配置 - >选择Tomcat服务器 - >类路径 - >添加外部JAR

2)创建的entityManagerFactory

try 
     { 
     Class.forName("org.h2.Driver"); 
     } 

     catch (Exception e) 
     {} 
前加入这一行