= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(); EmployeeMapper mapper2 = openSession2.getMapper(EmployeeMapper.class...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper
= sqlSessionFactory.openSession(); try { EmployeeMapperDymanicSQL mapper...=openSession.getMapper(EmployeeMapperDymanicSQL.class); /*Employee employee=new Employee(1,"lili",... = sqlSessionFactory.openSession(); try { EmployeeMapperDymanicSQL mapper=...openSession.getMapper(EmployeeMapperDymanicSQL.class); List emps=new ArrayList...(); } finally { openSession.close(); } }
= sqlSessionFactory.openSession(); SqlSession openSession2 = sqlSessionFactory.openSession();...EmployeeMapper mapper2 = openSession2.getMapper(EmployeeMapper.class); try { EmployeeMapper...mapper = openSession.getMapper(EmployeeMapper.class); Employee employee01 = mapper.getEmpById(1);...= sqlSessionFactory.openSession(); SqlSession openSession2 = sqlSessionFactory.openSession(); try....getEmpById(1); System.out.println(emp02); openSession2.close(); } finally { openSession.close
方法获得SQLSession public interface SqlSessionFactory { SqlSession openSession(); SqlSession openSession...(boolean autoCommit); SqlSession openSession(Connection connection); SqlSession openSession(TransactionIsolationLevel...level); SqlSession openSession(ExecutorType execType); SqlSession openSession(ExecutorType execType..., boolean autoCommit); SqlSession openSession(ExecutorType execType, TransactionIsolationLevel level...); SqlSession openSession(ExecutorType execType, Connection connection); Configuration getConfiguration
= sqlSessionFactory.openSession(true); try { EmployeeMapperDynamicSQL mapper = openSession.getMapper...= sqlSessionFactory.openSession(true); try { EmployeeMapperDynamicSQL mapper = openSession.getMapper...= sqlSessionFactory.openSession(true); try { EmployeeMapperDynamicSQL mapper = openSession.getMapper...= sqlSessionFactory.openSession(true); try { EmployeeMapperDynamicSQL mapper = openSession.getMapper...= sqlSessionFactory.openSession(true); try { EmployeeMapperDynamicSQL mapper = openSession.getMapper
(); SqlSession openSession(boolean autoCommit); SqlSession openSession(Connection connection); SqlSession...openSession(TransactionIsolationLevel level); SqlSession openSession(ExecutorType execType); SqlSession...openSession(ExecutorType execType, boolean autoCommit); SqlSession openSession(ExecutorType execType..., TransactionIsolationLevel level); SqlSession openSession(ExecutorType execType, Connection connection...@Override public SqlSession openSession(Connection connection) { return sqlSessionFactory.openSession
= sqlSessionFactory.openSession(true); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(true); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(true); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(true); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper
(); SqlSession openSession(boolean autoCommit); SqlSession openSession(Connection connection);...SqlSession openSession(TransactionIsolationLevel level); SqlSession openSession(ExecutorType execType...); SqlSession openSession(ExecutorType execType, boolean autoCommit); SqlSession openSession(ExecutorType...execType, TransactionIsolationLevel level); SqlSession openSession(ExecutorType execType, Connection...@Override public SqlSession openSession(Connection connection) { return sqlSessionFactory.openSession
SqlSessionFactory sqlSessionFactory = getSqlSessionFactory(); SqlSession openSession = sqlSessionFactory.openSession...(); try { Employee employee = openSession.selectOne( "com.atguigu.mybatis.EmployeeMapper.selectEmp...", 1); System.out.println(employee); } finally { openSession.close(); } } @Test public...= sqlSessionFactory.openSession(); try { // 3、获取接口的实现类对象 //会为接口自动的创建一个代理对象，代理对象去执行增删改查方法...EmployeeMapper mapper = openSession.getMapper(EmployeeMapper.class); Employee employee = mapper.getEmpById
= sqlSessionFactory.openSession(); //获取sqlSession实例，能够直接执行已经映射好的sql语句 try {...Employee employee = openSession.selectOne("com.gong.mybatis.EmployeeMapper.getEmpById",1);...System.out.println(employee); }finally { openSession.close(); } }...= sqlSessionFactory.openSession(); try { // 3、获取接口的实现类对象 //会为接口自动的创建一个代理对象...，代理对象去执行增删改查方法 EmployeeDao mapper = openSession.getMapper(EmployeeDao.class);
的连接池和Hibernate的二级缓存 一个项目只需要创建一个就行了，因为里面有连接池，连接池创建一个就可以了 得到Session对象 Session session = sessionFactory.openSession...configre(); sessionFactory = configration.buildSessionFactory(); } public static Session openSession...(){ return sessionFactory.openSession(); } } 之后要获取连接就可以直接 Session ss = HibernateUtil.openSession...查询指定(通过主键查询get()返回包装成对应domain对象) public void hibernateTest(){ Session session = HibernateUtil.openSession...这里直接用后者） public void hibernateTest(){ Session session = HibernateUtil.openSession(); Student
IOException { SqlSessionFactory sqlSessionFactory = getSqlSessionFactory(); SqlSession openSession...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper...IOException { SqlSessionFactory sqlSessionFactory = getSqlSessionFactory(); SqlSession openSession...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper...(); } finally { // TODO: handle finally clause openSession.close();
public interface SqlSessionFactory { // 默认创建 SqlSession openSession(); SqlSession...openSession(boolean autoCommit); SqlSession openSession(Connection connection); SqlSession...openSession(TransactionIsolationLevel level); SqlSession openSession(ExecutorType execType);...SqlSession openSession(ExecutorType execType, boolean autoCommit); SqlSession openSession...(), null, false); } openSession()方法最终实现代码如下： private SqlSession openSessionFromDataSource(ExecutorType
SqlSessionFactory中有一个openSession(…)方法。...如下所示： public interface SqlSessionFactory { SqlSession openSession(); SqlSession openSession(boolean...autoCommit); SqlSession openSession(Connection connection); SqlSession openSession(TransactionIsolationLevel...level); SqlSession openSession(ExecutorType execType); SqlSession openSession(ExecutorType execType...其中SqlSession openSession(ExecutorType execType);就是一个很典型的应用了工厂模式来达到目的的。
=sessionFactory.openSession();try {Employee employee = openSession.selectOne("com.qiming.mubatis.EmployeeMapper.selectEmp...", 1);System.out.println(employee);} finally {openSession.close();}}/** * 第二种获取数据的方法，通过接口动态绑定 * @throws...= sqlSessionFactory.openSession();try {//3.获取接口的实现类对象,//会为接口自动创建一个代理对象，代理对象去执行增删改查方法//获取MapperProxy代理对象...EmployeeMapper mapper = openSession.getMapper(EmployeeMapper.class);Employee employee = mapper.getEmpById...= sqlSessionFactory.openSession();如何实现动态接口绑定：项目文件目录结构：将所有配置文件放在源文件夹conf下，一般后期开发会将所有相关文件放在conf中，在src与
支持动态绑定参数 HQL的简单查询: @Test /** * 简单查询:查询所有记录 */ publicvoid demo2(){ Session session = HibernateUtils.openSession...session.close(); } HQL的排序查询: @Test /** * 排序查询 */ publicvoiddemo5(){ Session session = HibernateUtils.openSession...session.close(); } HQL的分页查询: @Test /** * 分页查询 */ publicvoid demo6(){ Session session = HibernateUtils.openSession...session.close(); } HQL的条件查询: @Test /** * 条件对象 */ publicvoid demo8(){ Session session = HibernateUtils.openSession...QBC简单查询: @Test /** * 简单查询: */ publicvoid demo1(){ Session session = HibernateUtils.openSession(); Transaction
= sqlSessionFactory.openSession(); SqlSession openSession2 = sqlSessionFactory.openSession()...; try { EmployeeMapper mapper = openSession.getMapper(EmployeeMapper.class...); EmployeeMapper mapper2 = openSession2.getMapper(EmployeeMapper.class); Employee...em = mapper.getEmpById(1); System.out.println(em); openSession.close();...Employee em2 = mapper2.getEmpById(1); System.out.println(em2); openSession.close
org.apache.ibatis.session; import java.sql.Connection; public interface SqlSessionFactory { SqlSession openSession...(); SqlSession openSession(boolean var1); SqlSession openSession(Connection var1); SqlSession...openSession(TransactionIsolationLevel var1); SqlSession openSession(ExecutorType var1); SqlSession...openSession(ExecutorType var1, boolean var2); SqlSession openSession(ExecutorType var1, TransactionIsolationLevel...var2); SqlSession openSession(ExecutorType var1, Connection var2); Configuration getConfiguration
IOException { SqlSessionFactory sqlSessionFactory = getSqlSessionFactory(); SqlSession openSession...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper...IOException { SqlSessionFactory sqlSessionFactory = getSqlSessionFactory(); SqlSession openSession...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper...= sqlSessionFactory.openSession(); try { EmployeeMapper mapper = openSession.getMapper
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