utfstring.java

JAVA程序代码:解决hibernate在oracle中存取汉字中乱码的问题

package tableList;

import java.io.Serializable;      
import java.io.UnsupportedEncodingException;      
import java.sql.PreparedStatement;      
import java.sql.ResultSet;      
import java.sql.SQLException;      
import oracle.jdbc.driver.OracleTypes;      
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.hibernate.HibernateException;      
import org.hibernate.usertype.UserType;      
	  
public class UTFString implements UserType {      
     
    public UTFString() {      
        super();      
    }      
     
    public int[] sqlTypes() {      
        return new int[] { OracleTypes.VARCHAR };      
    }      
     
    public Class returnedClass() {      
        return String.class;      
    }      
     
    public boolean equals(Object x, Object y) throws HibernateException {      
        return (x == y) || (x != null && y != null && (x.equals(y)));      
    }      
     
    public Object nullSafeGet(ResultSet rs, String[] names, Object owner) throws HibernateException,      
            SQLException {      
        String val = rs.getString(names[0]);      
        if (null == val) {      
            return null;      
        } else {      
            try {      
                val = new String(val.getBytes("iso-8859-1"), "gb2312");      
            } catch (UnsupportedEncodingException e) {      
                throw new HibernateException(e.getMessage());      
            }      
            return val;      
        }      
    }      
     
    public void nullSafeSet(PreparedStatement st, Object value, int index) throws HibernateException,      
            SQLException {      
        if (value == null) {      
            st.setNull(index, OracleTypes.VARCHAR);      
        } else {      
            String val = (String)value;      
            try {      
                val = new String(val.getBytes(), "iso-8859-1");      
            } catch (UnsupportedEncodingException e) {      
                throw new HibernateException(e.getMessage());      
            }      
            st.setObject(index, val, OracleTypes.VARCHAR);      
        }      
    }      
     
    public Object deepCopy(Object value) throws HibernateException {      
        if (value == null)      
            return null;      
        return new String((String) value);      
    }      
     
    public boolean isMutable() {      
        return false;      
    }      
     
    public Object assemble(Serializable arg0, Object arg1) throws HibernateException {      
         return null;      
    }      
     
    public Serializable disassemble(Object arg0) throws HibernateException {      
         return null;      
    }      
     
    public int hashCode(Object arg0) throws HibernateException {      
        return HashCodeBuilder.reflectionHashCode(this);      
    }      
     
    public Object replace(Object arg0, Object arg1, Object arg2) throws HibernateException {      
        return null;      
    }      
}