org.hibernate.cfg.ImprovedNamingStrategy实现的

hibernate配置

protected static String addUnderscores(String name) {
StringBuffer buf = new StringBuffer( name.replace('.', '_') );
for (int i=1; i<buf.length()-1; i++) {
if (
Character.isLowerCase( buf.charAt(i-1) ) &&
Character.isUpperCase( buf.charAt(i) ) &&
Character.isLowerCase( buf.charAt(i+1) )
) {
buf.insert(i++, '_');
}
}
return buf.toString().toLowerCase();
}

public String collectionTableName(
        String ownerEntity, String ownerEntityTable, String associatedEntity, String associatedEntityTable,
        String propertyName
) {
    return tableName( ownerEntityTable + '_' + propertyToColumnName(propertyName) );
}

而这个[code="java"]
public class TableNamePrefixNamingStrategy extends ImprovedNamingStrategy {

private static final String DEFAULT_PREFIX = "T_";

protected static String addUnderscores(String name) {
    return DEFAULT_PREFIX + ImprovedNamingStrategy.addUnderscores(name);
}

@Override
public String classToTableName(String className) {
    return addUnderscores(className);
}

@Override
public String tableName(String tableName) {
    return addUnderscores(tableName);
}

}
[/code]