Spring+Hibernate两种方法实现增删改查.doc

Spring+Hibernate两种方法实现增删改查首先，定义一个Customer的bean类，设置好Customer.hbm.xml文件。再定义好一个Dao接口。准备好一个perties文件。第一种方法：在dao类中定义一个HibernateTemplate类的对象，用该对象调用HibernateTemplate模板封装好的方法，如下：Java代码1. /*2. * hibernateTemplate的转配模式3. */4.public class CustomerDaoImpl implements CustomerDao 5. / 设置hibernateTemplate属性6. private HibernateTemplate hibernateTemplate;7.8. / 必须设置set方法9. public void setHibernateTemplate(HibernateTemplate hibernateTemplate) 10. this.hibernateTemplate = hibernateTemplate;11. 12.13. / 插入方法14. Override15. public void insert(Customer entity) 16. hibernateTemplate.save(entity);17. 18.19. / 删除方法（按照试题删除）20. Override21. public void delete(Customer entity) 22. hibernateTemplate.delete(entity);23.24. 25.26. / 删除方法，按id删除，该方法不成功27. Override28. public void deleteById(int id) 29. / hibernateTemplate.30. 31.32. / 查询所有记录33. Override34. public List selectAll() 35. / TODO Auto-generated method stub36. List entities = hibernateTemplate.find(from Customer);37. return entities;38. 39.40. / 按照id查找记录41. Override42. public Customer selectById(int id) 43. / TODO Auto-generated method stub44. List entitise = hibernateTemplate45. .find(from Customer where id= + id);46. if (entitise.size() 0) 47. Customer entity = entitise.get(0);48. return entity;49. 50. return null;51. 52.53. / 更新方法54. Override55. public void update(Customer entity) 56. / TODO Auto-generated method stub57. hibernateTemplate.update(entity);58. 59.xml中的部分代码如下：Java代码1.2. 3.4. 5. 6. 7. 8. $jdbc.driverClass9. 10.11. 12. 13. $jdbc.url14. 15.16. 17. 18. $jdbc.user19. 20.21. 22. 23. $jdbc.password24. 25.26. 27. 28. $c3p0.pool.max29. 30.31. 32. 33. $c3p0.pool.min34. 35. 36. 37. $c3p0.pool.init38. 39. 40.41. 43. 44. 45. 46. 47. 48. $hibernate.show_sql49. $hibernate.hbm2ddl.auto50. 51. 52. 53. 54. 55. cn/csdn/domain/Customer.hbm.xml56. 57. 58.59. 60.61.62. 63.64. 65. 66.67. 68. 69. 70. 71. 第二种方法：Dao实现类继承HibernateDaoSupport类，该类是抽象类，该类中有一个HibernateTemplate的属性，通过this.getHibernateTemplate()可获得一个HibernateTemplate类的对象。Dao实现类中的代码如下：Java代码1./*2. * 继承HibernateDaoSupport类，HibernateDaoSupport类中封装了一个hibernateTemplate变量3. */4.public class CustomerDaoImpl1 extends HibernateDaoSupport implements5. CustomerDao 6.7. / 添加记录8. Override9. public void insert(Customer entity) 10. this.getHibernateTemplate().save(entity);11. 12.13. / 删除记录（按照实体删除）14. Override15. public void delete(Customer entity) 16. / TODO Auto-generated method stub17. this.getHibernateTemplate().delete(entity);18.19. 20.21. / 删除记录（按id删除）,不成功22. /23. Override24. public void deleteById(int id) 25. / TODO Auto-generated method stub26. / this.getHibernateTemplate().delete(entity);27. 28.29. / 查询所有的记录30. Override31. public List selectAll() 32. / TODO Auto-generated method stub33. List entities = this.getHibernateTemplate().find(34. from Customer);35. return entities;36. 37.38./ 按照id查找记录39. Override40. public Customer selectById(int id) 41. / TODO Auto-generated method stub42. Listentities=this.getHibernateTemplate().find(from Customer where id=+id);43. if(entities.size()0)44. Customer entity=entities.get(0);45. return entity;46. 47. return null;48. 49.50./ 更新的方法51. Override52. public void update(Customer entity) 53. / TODO Auto-generated method stub54. this.getHibernateTemplate().update(entity);55. 56.57. xml中的部分代码：Java代码1.2. 3.4. 5. 6. 7. 8. $jdbc.driverClass9. 10.11. 12. 13. $jdbc.url14. 15.16. 17. 18. $jdbc.user19. 20.21. 22. 23. $jdbc.password24. 25.26. 27. 28. $c3p0.pool.max29. 30.31. 32. 33. $c3p0.pool.min34. 35. 36. 37. $c3p0.pool.init38. 3