Java 使用MapperFactoryBean时如何获取当前会话？

免责声明：我还是MyBatis&Spring的新手，所以如果下面缺少一些细节，请原谅我

我有一些代码在MyBatis中使用

MapperFactoryBean

自动管理数据库事务，而无需在Java代码中创建DAO类。这也意味着当使用这种方法时，用户不需要编写任何特定于会话的代码，因为MyBatis直接处理与数据库本身通信的会话

问题：如果出现上述情况，如果希望获得当前会话，您如何做到？？在Hibernate中，您可以执行

getSessionFactory（）.getCurrentSession（）

来获取当前会话。当MyBatis的

MapperFactoryBean

方法用于与数据库通信时，MyBatis的等效命令是什么

以下是我当前代码的片段：

beans.xml:

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.countries.dataaccess" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
     <property name="dataSource" ref="dataSource" />    
</bean>

<bean id="countriesMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
 <property name="mapperInterface" value="com.countries.dataaccess.CountryMapper" />
     <property name="sqlSessionFactory" ref="sqlSessionFactory" />         
</bean>

<bean id="countriesFacade" class="com.countries.facade.CountriesFacade" />

public interface CountryMapper {

    public List<CountryOutlineDTO> getAllCountries(List<String> merchantType);

    public CountryDetailsDTO getCountryInfo(String countryCode);

  //etc ....
}

public interface CountriesServiceDelegate {

    public CountryDetails getCountryDetails(String countryCode, String locale) throws Exception;

    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) throws Exception;

    public Health getDBHealth();
}

public class CountriesServiceDelegateImpl implements CountriesServiceDelegate {

    @Autowired
    private CountriesFacade countriesFacade;

    @Override
    public CountryDetails getCountryDetails(String countryCode, String locale) {

    //Implementation logic here ...

    }

    @Override
    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) {

    //Implementation logic here ...

    }
}

public class CountriesFacade {

    @Autowired
    @Qualifier("countriesMapper")
    private CountryMapper countriesMapper;

    public CountryDetails getCountryInfo(String countryCode, String locale) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }

    public List<CountryDetails> getAllCountries(List<String> merchantType, boolean verbose) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }
}

com.countries.dataaccess.CountryMapper:

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.countries.dataaccess" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
     <property name="dataSource" ref="dataSource" />    
</bean>

<bean id="countriesMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
 <property name="mapperInterface" value="com.countries.dataaccess.CountryMapper" />
     <property name="sqlSessionFactory" ref="sqlSessionFactory" />         
</bean>

<bean id="countriesFacade" class="com.countries.facade.CountriesFacade" />

public interface CountryMapper {

    public List<CountryOutlineDTO> getAllCountries(List<String> merchantType);

    public CountryDetailsDTO getCountryInfo(String countryCode);

  //etc ....
}

public interface CountriesServiceDelegate {

    public CountryDetails getCountryDetails(String countryCode, String locale) throws Exception;

    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) throws Exception;

    public Health getDBHealth();
}

public class CountriesServiceDelegateImpl implements CountriesServiceDelegate {

    @Autowired
    private CountriesFacade countriesFacade;

    @Override
    public CountryDetails getCountryDetails(String countryCode, String locale) {

    //Implementation logic here ...

    }

    @Override
    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) {

    //Implementation logic here ...

    }
}

public class CountriesFacade {

    @Autowired
    @Qualifier("countriesMapper")
    private CountryMapper countriesMapper;

    public CountryDetails getCountryInfo(String countryCode, String locale) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }

    public List<CountryDetails> getAllCountries(List<String> merchantType, boolean verbose) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }
}

公共接口CountryMapper{
公共列表getAllCountries（列表商品类型）；
公共CountryDetails用于获取CountryInfo（字符串countryCode）；
//等等。。。。
}

com.countries.delegate.countries服务代表：

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.countries.dataaccess" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
     <property name="dataSource" ref="dataSource" />    
</bean>

<bean id="countriesMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
 <property name="mapperInterface" value="com.countries.dataaccess.CountryMapper" />
     <property name="sqlSessionFactory" ref="sqlSessionFactory" />         
</bean>

<bean id="countriesFacade" class="com.countries.facade.CountriesFacade" />

public interface CountryMapper {

    public List<CountryOutlineDTO> getAllCountries(List<String> merchantType);

    public CountryDetailsDTO getCountryInfo(String countryCode);

  //etc ....
}

public interface CountriesServiceDelegate {

    public CountryDetails getCountryDetails(String countryCode, String locale) throws Exception;

    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) throws Exception;

    public Health getDBHealth();
}

public class CountriesServiceDelegateImpl implements CountriesServiceDelegate {

    @Autowired
    private CountriesFacade countriesFacade;

    @Override
    public CountryDetails getCountryDetails(String countryCode, String locale) {

    //Implementation logic here ...

    }

    @Override
    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) {

    //Implementation logic here ...

    }
}

public class CountriesFacade {

    @Autowired
    @Qualifier("countriesMapper")
    private CountryMapper countriesMapper;

    public CountryDetails getCountryInfo(String countryCode, String locale) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }

    public List<CountryDetails> getAllCountries(List<String> merchantType, boolean verbose) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }
}

公共接口国家/地区服务委托{
public CountryDetails getCountryDetails（字符串countryCode，字符串locale）抛出异常；
公共列表getAllCountryDetails（List merchantTypeList，布尔详细信息）引发异常；
公共卫生getDBHealth（）；
}

com.countries.delegate.impl.countries服务delegateimpl:

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.countries.dataaccess" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
     <property name="dataSource" ref="dataSource" />    
</bean>

<bean id="countriesMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
 <property name="mapperInterface" value="com.countries.dataaccess.CountryMapper" />
     <property name="sqlSessionFactory" ref="sqlSessionFactory" />         
</bean>

<bean id="countriesFacade" class="com.countries.facade.CountriesFacade" />

public interface CountryMapper {

    public List<CountryOutlineDTO> getAllCountries(List<String> merchantType);

    public CountryDetailsDTO getCountryInfo(String countryCode);

  //etc ....
}

public interface CountriesServiceDelegate {

    public CountryDetails getCountryDetails(String countryCode, String locale) throws Exception;

    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) throws Exception;

    public Health getDBHealth();
}

public class CountriesServiceDelegateImpl implements CountriesServiceDelegate {

    @Autowired
    private CountriesFacade countriesFacade;

    @Override
    public CountryDetails getCountryDetails(String countryCode, String locale) {

    //Implementation logic here ...

    }

    @Override
    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) {

    //Implementation logic here ...

    }
}

public class CountriesFacade {

    @Autowired
    @Qualifier("countriesMapper")
    private CountryMapper countriesMapper;

    public CountryDetails getCountryInfo(String countryCode, String locale) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }

    public List<CountryDetails> getAllCountries(List<String> merchantType, boolean verbose) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }
}

公共类CountriesServiceDelegateImpl实现CountriesServiceDelegate{
@自动连线
私人国家基金会国家基金会；
@凌驾
public CountryDetails getCountryDetails（字符串countryCode，字符串locale）{
//这里的实现逻辑。。。
}
@凌驾
公共列表getAllCountryDetails（列表merchantTypeList，布尔详细信息）{
//这里的实现逻辑。。。
}
}

com.countries.facade:

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.countries.dataaccess" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
     <property name="dataSource" ref="dataSource" />    
</bean>

<bean id="countriesMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
 <property name="mapperInterface" value="com.countries.dataaccess.CountryMapper" />
     <property name="sqlSessionFactory" ref="sqlSessionFactory" />         
</bean>

<bean id="countriesFacade" class="com.countries.facade.CountriesFacade" />

public interface CountryMapper {

    public List<CountryOutlineDTO> getAllCountries(List<String> merchantType);

    public CountryDetailsDTO getCountryInfo(String countryCode);

  //etc ....
}

public interface CountriesServiceDelegate {

    public CountryDetails getCountryDetails(String countryCode, String locale) throws Exception;

    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) throws Exception;

    public Health getDBHealth();
}

public class CountriesServiceDelegateImpl implements CountriesServiceDelegate {

    @Autowired
    private CountriesFacade countriesFacade;

    @Override
    public CountryDetails getCountryDetails(String countryCode, String locale) {

    //Implementation logic here ...

    }

    @Override
    public List<CountryDetails> getAllCountryDetails(List<String> merchantTypeList, boolean verbose) {

    //Implementation logic here ...

    }
}

public class CountriesFacade {

    @Autowired
    @Qualifier("countriesMapper")
    private CountryMapper countriesMapper;

    public CountryDetails getCountryInfo(String countryCode, String locale) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }

    public List<CountryDetails> getAllCountries(List<String> merchantType, boolean verbose) {

    //Implementation logic here such as xyz = countriesMapper.getCountryInfo(countryCode);

    }
}

公共类国家基金会{
@自动连线
@限定符（“countriesMapper”）
私人国家地图绘制者国家地图绘制者；
public CountryDetails getCountryInfo（字符串countryCode，字符串locale）{
//这里的实现逻辑，比如xyz=countriesMapper.getCountryInfo（countryCode）；
}
公共列表getAllCountries（列表商品类型，布尔详细）{
//这里的实现逻辑，比如xyz=countriesMapper.getCountryInfo（countryCode）；
}
}

高使用

SqlSessionTemplate

如文档所示

它将确保您获得与正在使用的映射程序相同的sqlsession

---

您还可以使用同一页面上记录的

SqlSessionDaoSupport

，前提是它更适合您的用例。

Hi-use

SqlSessionTemplate

它将确保您获得与正在使用的映射程序相同的sqlsession

您还可以使用同一页面上记录的

SqlSessionDaoSupport

，如果这更适合您的用例