去除SqlSession

mybatis-plus-support/src/main/java/com/baomidou/mybatisplus/entity/GlobalConfiguration.java

@@ -104,10 +104,6 @@ public class GlobalConfiguration implements Serializable {
      * 缓存已注入CRUD的Mapper信息
      */
     private Set<String> mapperRegistryCache = new ConcurrentSkipListSet<>();
-    /**
-     * 单例重用SqlSession
-     */
-    private SqlSession sqlSession;
     /**
      * 缓存 Sql 解析初始化
      */
@@ -228,7 +224,6 @@ public class GlobalConfiguration implements Serializable {
 
     public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
         this.sqlSessionFactory = sqlSessionFactory;
-        this.sqlSession = new MybatisSqlSessionTemplate(sqlSessionFactory);
     }
 
     public boolean isCapitalMode() {
@@ -264,10 +259,6 @@ public class GlobalConfiguration implements Serializable {
         }
     }
 
-    public SqlSession getSqlSession() {
-        return sqlSession;
-    }
-
     public boolean isSqlParserCache() {
         return sqlParserCache;
     }

mybatis-plus-support/src/main/java/com/baomidou/mybatisplus/mapper/SqlHelper.java

@@ -19,10 +19,8 @@ import java.util.List;
 
 import org.apache.ibatis.logging.Log;
 import org.apache.ibatis.logging.LogFactory;
-import org.apache.ibatis.session.Configuration;
 import org.apache.ibatis.session.ExecutorType;
 import org.apache.ibatis.session.SqlSession;
-import org.apache.ibatis.session.SqlSessionFactory;
 
 import com.baomidou.mybatisplus.entity.TableInfo;
 import com.baomidou.mybatisplus.exceptions.MybatisPlusException;
@@ -70,26 +68,6 @@ public class SqlHelper {
         return GlobalConfigUtils.currentSessionFactory(clazz).openSession(ExecutorType.BATCH);
     }
 
-    /**
-     * <p>
-     * 获取sqlSession
-     * </p>
-     *
-     * @param clazz 对象类
-     * @return
-     */
-    private static SqlSession getSqlSession(Class<?> clazz) {
-        SqlSession session = null;
-        try {
-            SqlSessionFactory sqlSessionFactory = GlobalConfigUtils.currentSessionFactory(clazz);
-            Configuration configuration = sqlSessionFactory.getConfiguration();
-            session = GlobalConfigUtils.getGlobalConfig(configuration).getSqlSession();
-        } catch (Exception e) {
-            // ignored
-        }
-        return session;
-    }
-
     /**
      * <p>
      * 获取Session
@@ -100,8 +78,7 @@ public class SqlHelper {
      * @return SqlSession
      */
     public static SqlSession sqlSession(Class<?> clazz, boolean autoCommit) {
-        SqlSession sqlSession = getSqlSession(clazz);
-        return (sqlSession != null) ? sqlSession : GlobalConfigUtils.currentSessionFactory(clazz).openSession(autoCommit);
+        return GlobalConfigUtils.currentSessionFactory(clazz).openSession(autoCommit);
     }
 
     /**

mybatis-plus-support/src/main/java/com/baomidou/mybatisplus/mapper/SqlRunner.java

@@ -24,7 +24,6 @@ import org.apache.ibatis.session.SqlSessionFactory;
 import org.springframework.transaction.annotation.Transactional;
 
 import com.baomidou.mybatisplus.plugins.Page;
-import com.baomidou.mybatisplus.toolkit.GlobalConfigUtils;
 import com.baomidou.mybatisplus.toolkit.StringUtils;
 
 /**
@@ -189,7 +188,7 @@ public class SqlRunner {
      * <p/>
      */
     private SqlSession sqlSession() {
-        return (clazz != null) ? SqlHelper.sqlSession(clazz) : GlobalConfigUtils.getSqlSession(FACTORY.getConfiguration());
+        return (clazz != null) ? SqlHelper.sqlSession(clazz) : FACTORY.openSession(true);
     }
 
 }

mybatis-plus-support/src/main/java/com/baomidou/mybatisplus/toolkit/GlobalConfigUtils.java

@@ -10,7 +10,6 @@ import javax.sql.DataSource;
 import org.apache.ibatis.logging.Log;
 import org.apache.ibatis.logging.LogFactory;
 import org.apache.ibatis.session.Configuration;
-import org.apache.ibatis.session.SqlSession;
 import org.apache.ibatis.session.SqlSessionFactory;
 
 import com.baomidou.mybatisplus.entity.GlobalConfiguration;
@@ -171,10 +170,6 @@ public class GlobalConfigUtils {
         return getGlobalConfig(configuration).getIdentifierQuote();
     }
 
-    public static SqlSession getSqlSession(Configuration configuration) {
-        return getGlobalConfig(configuration).getSqlSession();
-    }
-
     /**
      * <p>
      * 设置元数据相关属性