用的是mysql。

把其中相应的参数修改完后，run的时候，在  
Model defModel = maker.createModel("Animal"); 这句的时候报错。

错误为：
[color=#FF0000]
驱动程序已经安装。
数据库连接成功。
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/E:/eclipse/owl_workspace/owlWebTest/WebContent/WEB-INF/lib/slf4j-log4j12-1.5.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/E:/eclipse/owl_workspace/owlWebTest/WebContent/WEB-INF/lib/slf4j-log4j12-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
Exception in thread "main" com.hp.hpl.jena.shared.JenaException: The database appears to be unformatted or corrupted - could not find value
for "long object length" in Jena system properties table.
If possible, call IDBConnection.cleanDB().
Warning: cleanDB will remove all Jena models from the databases.
 at com.hp.hpl.jena.db.impl.DriverRDB.throwBadFormat(DriverRDB.java:406)
 at com.hp.hpl.jena.db.impl.DriverRDB.getSystemSpecializedGraph(DriverRDB.java:339)
 at com.hp.hpl.jena.db.DBConnection.containsModel(DBConnection.java:196)
 at com.hp.hpl.jena.db.impl.GraphRDBMaker.hasGraph(GraphRDBMaker.java:132)
 at com.hp.hpl.jena.db.impl.GraphRDBMaker.createGraph(GraphRDBMaker.java:94)
 at com.hp.hpl.jena.rdf.model.impl.ModelMakerImpl.createModel(ModelMakerImpl.java:46)
 at com.hp.hpl.jena.rdf.model.impl.ModelMakerImpl.createModel(ModelMakerImpl.java:49)
 at com.inspur.owl.Persistent.main(Persistent.java:32)[/color]

在网上也没找到相应的异常处理办法。

小弟刚刚接触OWL，还望各位高手指点，感激不尽。

附代码：
   import java.io.*;
import java.sql.SQLException;
import com.hp.hpl.jena.db.*;
import com.hp.hpl.jena.rdf.model.*;

public class Persistent {
public static final String strDriver = "com.mysql.jdbc.Driver";
public static final String strURL = "jdbc:mysql://localhost:3306/protege_db";
// localhost的后面要直接写冒号，再写3306；
public static final String strUser = "root";
public static final String strPassword = "root";
public static final String strDB = "MySQL";

public static void main(String[] args){
  try {
   DBConnection connection = new DBConnection(strURL, strUser, strPassword, strDB);
   // 创建连接时，第四个参数需要指定所用的数据库类型；也就是说strDB的值应该是“MySQL”
   try {
    Class.forName("com.mysql.jdbc.Driver");
    System.out.println("驱动程序已经安装。");
   } catch (ClassNotFoundException e){
    System.out.println("ClassNotFoundException, Driver is not available");
    }
   System.out.println("数据库连接成功。");
   
   // 从此处开始读入一个OWL文件并且存储到数据库中；
  
   ModelMaker maker = ModelFactory.createModelRDBMaker(connection);
// 使用数据库连接参数创建一个模型制造器
[color=#FF0000] Model defModel = maker.createModel("Animal");
     // 创建一个默认模型，命名为Costume，因为我要存入的OWL文件名是Costume
   
   FileInputStream read = null;
   try{
    File file = new File("E:/owl/Animal.owl");
    read = new FileInputStream(file);
   }catch (FileNotFoundException e){
    e.printStackTrace();
    System.out.println("未找到要存储的本体文件，请检查文件地址及名称");
   }
   System.out.println("已将本体文件转换为字节流文件。");
   
   InputStreamReader in = null;
   try {
    in = new InputStreamReader((FileInputStream)read, "UTF-8");
   } catch (UnsupportedEncodingException e) {
    e.printStackTrace();
    System.out.println("不支持上述字符集。");
   }
   System.out.println("已将字节流文件转换为UTF-8编码。");
   
   defModel.read(in,null);
   try {
    in.close();
   } catch (IOException e){
    e.printStackTrace();
    System.out.println("无法关闭字节流文件。");
   }
   System.out.println("已将字节流文件关闭。");
   
   defModel.commit();
   System.out.println("数据转换执行完毕，已将本体文件存入数据库。");
   try{
    connection.close();
   } catch (SQLException e){
    e.printStackTrace();
    System.out.println("文件无法关闭。");
   }
  } catch (RDFRDBException e){
   System.out.println("出现异常");
   }
  System.out.println("已将本体文件持久化到数据库中");
  }
}

感谢分享成功解决经验！

public static OntModelSpec getModelSpec(ModelMaker maker)
{    
       OntModelSpec spec = new OntModelSpec(OntModelSpec.OWL_MEM);           
       spec.setImportModelMaker(maker);    
       return spec;
}
最后需要测试把文件持久化到数据库中和从数据库中读出操作的具体实现。代码如下：
public static void test() {    
     String DB_URL = "jdbc:mysql://localhost/avan";    
     String DB_USER = "root";    
     String DB_PASSWD = "root";    
     String DB = "MySQL";    
     String DB_DRIVER = "com.mysql.jdbc.Driver"; 
   
     try {           
              Class.forName("com.mysql.jdbc.Driver");    
      } catch (ClassNotFoundException e) {            
              e.printStackTrace();    
      }    
     String filePath = "file:C://Animal//Animal.owl";    
     IDBConnection con = Jena2SQL.connectDB(DB_URL,DB_USER, DB_PASSWD, DB);       
     Jena2SQL.createDBModelFromFile(con, "Animal",filePath);      
     OntModel Model = Jena2SQL.getModelFromDB(con, "Animal");       
     Jena2SQL.SimpleReadOntology(Model);
}

public static void SimpleReadOntology(OntModel model) {    
     for (Iterator i = model.listClasses(); i.hasNext();)
     {        
            OntClass c = (OntClass) i.next();          
            System.out.println(c.getLocalName());    
      }
}
其中SimpleReadOntology()方法实现的效果是读取本体中类的简单操作。