第二步：导入坐标 第三步：编写必要代码（实体类和持久层接口） 第四步：编写 SqlMapConfig.xml 第五步：编写映射配置文件 第六步：编写测试类 第2章 基于代理 Dao 实现 CRUD 操作 使用要求： 1、持久层接口和持久层接口的映射配置必须在相同的包下 2、持久层映射配置中 mapper 标签的 namespace 属性取值必须是持久层接口的全限定类名 builder.build(in); //4.创建 SqlSession 对象 session = factory.openSession(); //5.创建 Dao 的代理对象 userDao = session.getMapper(IUserDao.class); } 传智播客——专注于 Java、.Net 和 Php、网页平面设计工程师的培训 会讲解如何配置实体类的别名） 同时，当是实体类名称是，还有一个要求，实体类中的属性名称必须和查询语句中的列名保持一致，否则无法 实现封装。 4.1.1 基本类型示例 4.1.1.1 Dao 接口 /** * 查询总记录条数 * @return */ int findTotal(); 4.1.1.2 映射配置

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 2. DAO Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 2.2. Annotations Used to Configure DAO or Repository Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 3. Data Access configure and use transactions with both the Spring Framework and EJB3. 64 Chapter 2. DAO Support The Data Access Object (DAO) support in Spring is aimed at making it easy to work with data access technologies

additional metadata APIs ......................................................................... 110 10. DAO support .......................................................................................... ....................................................... 111 10.3. Consistent Abstract Classes for DAO Support ...................................................................... 112 11. Data Access ..................................................................................... 245 20.3.3. DAO support ..........................................................................................

additional metadata APIs ......................................................................... 121 10. DAO support .......................................................................................... ....................................................... 122 10.3. Consistent Abstract Classes for DAO Support ...................................................................... 123 11. Data Access ..................................................................................... 256 20.3.3. DAO support ..........................................................................................

additional metadata APIs ......................................................................... 102 9. DAO support .......................................................................................... ........................................................ 103 9.3. Consistent Abstract Classes for DAO Support ........................................................................ 104 10. Data Access ..................................................................................... 233 19.3.3. DAO support ..........................................................................................

additional metadata APIs ......................................................................... 110 10. DAO support .......................................................................................... ....................................................... 111 10.3. Consistent Abstract Classes for DAO Support ...................................................................... 112 11. Data Access ..................................................................................... 245 20.3.3. DAO support ..........................................................................................

additional metadata APIs ......................................................................... 110 10. DAO support .......................................................................................... ....................................................... 111 10.3. Consistent Abstract Classes for DAO Support ...................................................................... 112 11. Data Access ..................................................................................... 244 20.3.3. DAO support ..........................................................................................

additional metadata APIs ......................................................................... 110 10. DAO support .......................................................................................... ....................................................... 111 10.3. Consistent Abstract Classes for DAO Support ...................................................................... 112 11. Data Access ..................................................................................... 245 20.3.3. DAO support ..........................................................................................

additional metadata APIs ......................................................................... 110 10. DAO support .......................................................................................... ....................................................... 111 10.3. Consistent Abstract Classes for DAO Support ...................................................................... 112 11. Data Access ..................................................................................... 245 20.3.3. DAO support ..........................................................................................

......................................................................................... 198 10. DAO support .......................................................................................... ....................................................... 199 10.3. Consistent abstract classes for DAO support ................................................................. 200 11. Data access using ..................................................................................... 391 21.3.3. DAO support ..........................................................................................