...下面看下执行SQL的过程。 ClipsDAO clipsDAO = session.getMapper(ClipsDAO.class); ClipsEntity clipsEntity = clipsDAO.selectById(1); 查看session.getMapper()的实现： // org.apache.ibatis.sessi...
... // 获取接口的实现类实例 IUserMapper mapper = session.getMapper(IUserMapper.class); // 调用方法 User user = mapper.findById(1); System.out.println(user.getName()); ...
...的？ 平时我们使用如下代码获得一个Mapper对象。 public T getMapper(Class type) { return this.configuration.getMapper(type, this); } 通过调用DefaultSqlSession的getMapper方法并且传入一个类型对象获取，底层呢调用的是配置对象configuration的getMapper....
...动生成Mapper代理对象） UserMapper userMapper = sqlSession.getMapper(UserMapper.class); // 调用UserMapper的方法 User user = userMapper.findUserById(1); System.out.println(user); ...
...e); // 自动提交事务 StudentMapper studentMapper = sqlSession.getMapper(StudentMapper.class); System.out.println(studentMapper.getStudentById(1)); System.out.println(studentMapper....
...e); // 自动提交事务 StudentMapper studentMapper = sqlSession.getMapper(StudentMapper.class); System.out.println(studentMapper.getStudentById(1)); System.out.println(studentMapper....
...SessionFactory.openSession(); try { IUserOperation userOperation=session.getMapper(IUserOperation.class); List users = userOperation.selectUsers(userName); for(User user:users){ System.out.pr...
...、插入、更新、删除的方法。 UserMapper userMapper = sqlSession.getMapper(UserMapper.class); 其实getMapper()方法拿到的mapper是通过Java动态代理实现的。从getMapper()方法逐级往下看，可以发现在MapperRegistry类的getMapper()方法中会拿到一个MapperProxyFa...
... // 获取映射类 StudentDao studentDao = sqlSession.getMapper(StudentDao.class); // 直接调用接口的方法，传入参数id=1，返回Student对象 Student student = studentDao.getStudentById(1...
...|--SqlSourceBuilder 创建Mapper代理对象 找入口：DefaultSqlSession#getMapper |--DefaultSqlSession#getMapper：获取Mapper代理对象 |--Configuration#getMapper：获取Mapper代理对象 |--MapperRegistry#getMapper：通过代理...
... // 获取Mapper接口 SysUserMapper sysUserMapper = sqlSession.getMapper(SysUserMapper.class); SysUser user = new SysUser(); user.setUserAccount(admin); user.setUserPass...
...ssion(); try{ SysUserMapper sysUserMapper = sqlSession.getMapper(SysUserMapper.class); List users = sysUserMapper.selectAll(); users.forEach(user -> { ...
...ory.openSession(); // 3.获取对应mapper TUserMapper mapper = sqlSession.getMapper(TUserMapper.class); //-------------第三阶段------------- // 4.执行查询语句并返回结果 TUser user = mapper.selectByPrimaryKey(1); System...
... public interface PersonConverter { PersonConverter INSTANCE = Mappers.getMapper(PersonConverter.class); @Mappings({ @Mapping(source = birthday, target = birth), @Mapping(so...
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