fix

mybatis-jpa-extra-core/src/main/java/org/apache/mybatis/jpa/persistence/MapperMetadata.java

@@ -37,7 +37,11 @@ public class MapperMetadata <T extends JpaBaseDomain>{
 	/**
 	 * 表名和字段名
 	 */
-	public static boolean 	TABLE_COLUMN_UPCASE 					= 	true;
+	public static boolean 	TABLE_COLUMN_UPCASE 				=   true;
+	public static boolean   TABLE_COLUMN_ESCAPE                 =  false;
+	public static String    TABLE_COLUMN_ESCAPE_CHAR            =  "`";
+	
+	
 	public transient static ConcurrentMap<String, List<FieldColumnMapper>> 	fieldsMap 	= 	new ConcurrentHashMap<String, List<FieldColumnMapper>>();
 	public transient static ConcurrentMap<String, String> 		sqlsMap 	= 	new ConcurrentHashMap<String, String>();
 	public static IdentifierGeneratorFactory identifierGeneratorFactory=new IdentifierGeneratorFactory();
@@ -50,7 +54,9 @@ public class MapperMetadata <T extends JpaBaseDomain>{
 		} else {
 			tablename = entityClass.getClass().getSimpleName();
 		}
-		return TABLE_COLUMN_UPCASE ? tablename.toUpperCase() : tablename;
+		tablename = TABLE_COLUMN_UPCASE ? tablename.toUpperCase() : tablename;
+		tablename = TABLE_COLUMN_ESCAPE ? TABLE_COLUMN_ESCAPE_CHAR + tablename + TABLE_COLUMN_ESCAPE_CHAR : tablename;
+		return tablename;
 	}
 	
 	public static  FieldColumnMapper getIdColumn(String  classSimpleName) {
@@ -81,18 +87,21 @@ public class MapperMetadata <T extends JpaBaseDomain>{
 				FieldColumnMapper fieldColumnMapper=new FieldColumnMapper();
 				fieldColumnMapper.setFieldName( field.getName());
 				fieldColumnMapper.setFieldType(field.getType().getSimpleName());
-				
+				String columnName = "";
 				Column columnAnnotation = (Column) field.getAnnotation(Column.class);
 				if (columnAnnotation.name() != null && !columnAnnotation.name().equals("")) {
-					fieldColumnMapper.setColumnName(columnAnnotation.name());
+				    columnName = columnAnnotation.name();
 				} else {
-					if (TABLE_COLUMN_UPCASE) {
-						fieldColumnMapper.setColumnName(field.getName().toUpperCase());
-					} else {
-						fieldColumnMapper.setColumnName(field.getName());
-					}
+				    columnName = TABLE_COLUMN_UPCASE ? 
+				            field.getName().toUpperCase() : field.getName();
 				}
 				
+				columnName = TABLE_COLUMN_ESCAPE ? 
+				        TABLE_COLUMN_ESCAPE_CHAR + columnName + TABLE_COLUMN_ESCAPE_CHAR 
+				        : columnName;
+				
+				fieldColumnMapper.setColumnName(columnName);
+				
 				if(field.isAnnotationPresent(Id.class)) {
 					fieldColumnMapper.setIdColumn(true);
 				}

mybatis-jpa-extra-core/src/test/resources/config/applicationConfig.properties

@@ -22,7 +22,7 @@ config.datasource.database=mysql
 #	  for Derby			  jdbc:derby://localhost:1527/secdb
 #
 config.datasource.driverclass=com.mysql.jdbc.Driver
-config.datasource.url=jdbc:mysql://localhost/test?autoReconnect=true&characterEncoding=UTF-8
+config.datasource.url=jdbc:mysql://localhost/test?autoReconnect=false&characterEncoding=UTF-8&serverTimezone=UTC
 config.datasource.username=root
 config.datasource.password=maxkey
 

mybatis-jpa-extra-spring-boot-starter/src/main/java/org/apache/mybatis/jpa/starter/MybatisAutoConfiguration.java

@@ -32,6 +32,7 @@ import org.apache.ibatis.session.ExecutorType;
 import org.apache.ibatis.session.SqlSessionFactory;
 import org.apache.ibatis.type.TypeHandler;
 import org.apache.mybatis.jpa.MyBatisSessionFactoryBean;
+import org.apache.mybatis.jpa.persistence.MapperMetadata;
 import org.mybatis.spring.SqlSessionFactoryBean;
 import org.mybatis.spring.SqlSessionTemplate;
 import org.mybatis.spring.mapper.MapperFactoryBean;
@@ -151,6 +152,17 @@ public class MybatisAutoConfiguration implements InitializingBean {
     	factory.setDialect(this.properties.getDialect());
     }
     
+    if(this.properties.isTableColumnEscape()) {
+        MapperMetadata.TABLE_COLUMN_ESCAPE = true;
+        if(StringUtils.hasLength(this.properties.getTableColumnEscapeChar())) {
+            MapperMetadata.TABLE_COLUMN_ESCAPE_CHAR = this.properties.getTableColumnEscapeChar();
+        }
+    }
+    
+    if(this.properties.isTableColumnUpcase()) {
+        MapperMetadata.TABLE_COLUMN_UPCASE = true;
+    }
+    
     if (this.databaseIdProvider != null) {
       factory.setDatabaseIdProvider(this.databaseIdProvider);
     }

mybatis-jpa-extra-spring-boot-starter/src/main/java/org/apache/mybatis/jpa/starter/MybatisProperties.java

@@ -59,6 +59,13 @@ public class MybatisProperties {
   private String typeAliasesPackage;
 
   private String dialect;
+  
+  private boolean tableColumnEscape;
+  
+  private String tableColumnEscapeChar;
+  
+  private boolean tableColumnUpcase;
+  
   /**
    * The super class for filtering type alias. If this not specifies, the MyBatis deal as type alias all classes that
    * searched from typeAliasesPackage.
@@ -214,12 +221,36 @@ public class MybatisProperties {
     }
   }
 
-	public String getDialect() {
-		return dialect;
-	}
-	
-	public void setDialect(String dialect) {
-		this.dialect = dialect;
-	}
+  public boolean isTableColumnEscape() {
+      return tableColumnEscape;
+  }
+
+  public void setTableColumnEscape(boolean tableColumnEscape) {
+      this.tableColumnEscape = tableColumnEscape;
+  }
+
+  public String getTableColumnEscapeChar() {
+      return tableColumnEscapeChar;
+  }
+
+  public void setTableColumnEscapeChar(String tableColumnEscapeChar) {
+      this.tableColumnEscapeChar = tableColumnEscapeChar;
+  }
+
+  public boolean isTableColumnUpcase() {
+      return tableColumnUpcase;
+  }
+
+  public void setTableColumnUpcase(boolean tableColumnUpcase) {
+      this.tableColumnUpcase = tableColumnUpcase;
+  }
+
+  public String getDialect() {
+      return dialect;
+  }
+
+  public void setDialect(String dialect) {
+      this.dialect = dialect;
+  }
 
 }

mybatis-jpa-extra-spring-boot-starter/src/test/resources/application.properties

@@ -2,10 +2,12 @@ spring.main.web-application-type=NONE
 #
 spring.datasource.username=root
 spring.datasource.password=maxkey
-spring.datasource.url=jdbc:mysql://localhost/test?autoReconnect=true&characterEncoding=UTF-8
+spring.datasource.url=jdbc:mysql://localhost/test?autoReconnect=true&characterEncoding=UTF-8&serverTimezone=UTC
 spring.datasource.driver-class-name=com.mysql.jdbc.Driver
 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
 
 
 mybatis.type-aliases-package=org.apache.mybatis.jpa.test.domain
-mybatis.mapper-locations=classpath*:/org/apache/mybatis/jpa/test/dao/persistence/xml/mysql/*.xml
\ No newline at end of file
+mybatis.mapper-locations=classpath*:/org/apache/mybatis/jpa/test/dao/persistence/xml/mysql/*.xml
+mybatis.table-column-escape=true
+mybatis.table-column-escape-char=`
\ No newline at end of file

mybatis-jpa-extra-test/.project

@@ -11,12 +11,12 @@
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<name>org.springframework.ide.eclipse.boot.validation.springbootbuilder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.springframework.ide.eclipse.boot.validation.springbootbuilder</name>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>

pom.xml

@@ -22,7 +22,7 @@
 		<springboot.version>2.2.6.RELEASE</springboot.version>
 		<commons-dbcp2.version>2.1.1</commons-dbcp2.version>
 		<commons-pool2.version>2.4.2</commons-pool2.version>
-		<mysql-connnector.version>5.1.30</mysql-connnector.version>
+		<mysql-connnector.version>8.0.21</mysql-connnector.version>
 		<servlet-api.version>3.1.0</servlet-api.version>
 		<commons-io.version>2.4</commons-io.version>
 		<commons-codec.version>1.9</commons-codec.version>