hiberate通过类字段获取表字段
package com.jiesuan.common.hibernate3;import java.util.Iterator;import org.hibernate.cfg.Configuration;import org.hibernate.mapping.Column;import org.hibernate.mapping.PersistentClass;import org.hibernate.mapping.Property;import com.jiesuan.core.entity.User;/** * * @ClassName: HibernateConfigurationHelper * @Description: TODO(通过类字段拿到表字段) * @author Administrator * @date 2011-12-8 下午12:00:24 * */public class HibernateConfigurationHelper { private static Configuration hibernateConf; @SuppressWarnings("unused") private static Configuration getHibernateConf() { if (hibernateConf == null) { return new Configuration(); } return hibernateConf; } @SuppressWarnings("unchecked") private static PersistentClass getPersistentClass(Class clazz) { synchronized (HibernateConfigurationHelper.class) { PersistentClass pc = getHibernateConf().getClassMapping( clazz.getName()); if (pc == null) { hibernateConf = getHibernateConf().addClass(clazz); pc = getHibernateConf().getClassMapping(clazz.getName()); } return pc; } } /** * 功能描述：获取实体对应的表名 * * @param clazz * 实体类 * @return 表名 */ @SuppressWarnings("unchecked") public static String getTableName(Class clazz) { return getPersistentClass(clazz).getTable().getName(); } /** * 功能描述：获取实体对应表的主键字段名称 * * @param clazz * 实体类 * @return 主键字段名称 */ @SuppressWarnings("unchecked") public static String getPkColumnName(Class clazz) { return getPersistentClass(clazz).getTable().getPrimaryKey() .getColumn(0).getName(); } /** * 功能描述：通过实体类和属性，获取实体类属性对应的表字段名称 * * @param clazz * 实体类 * @param propertyName * 属性名称 * @return 字段名称 */ @SuppressWarnings("unchecked") public static String getColumnName(Class clazz, String propertyName) { PersistentClass persistentClass = getPersistentClass(clazz); Property property = persistentClass.getProperty(propertyName); Iterator it = property.getColumnIterator(); if (it.hasNext()) { Column column = (Column) it.next(); return column.getName(); } return null; } /** * @param args */ public static void main(String[] args) { // System.out.println(getTableName(IntelligenceNetVPNAndSCP.class)); System.out.println(getColumnName(User.class, "id")); }}?