refactor: 移除多数据库支持并简化配置

src/main/java/com/youlai/boot/framework/mybatis/config/MybatisConfig.java

@@ -7,15 +7,10 @@ import com.baomidou.mybatisplus.extension.plugins.inner.DataPermissionIntercepto
 import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
 import com.youlai.boot.framework.mybatis.handler.MyMetaObjectHandler;
 import com.youlai.boot.framework.mybatis.interceptor.MyDataPermissionHandler;
-import org.apache.ibatis.mapping.DatabaseIdProvider;
-import org.apache.ibatis.mapping.VendorDatabaseIdProvider;
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.transaction.annotation.EnableTransactionManagement;
 
-import java.util.Properties;
-
 /**
  * mybatis-plus 配置类
  *
@@ -26,9 +21,6 @@ import java.util.Properties;
 @EnableTransactionManagement
 public class MybatisConfig {
 
-    @Value("${app.db-type:mysql}")
-    private String dbType;
-
     /**
      * 分页插件和数据权限插件
      */
@@ -39,13 +31,8 @@ public class MybatisConfig {
         // 数据权限
         interceptor.addInnerInterceptor(new DataPermissionInterceptor(new MyDataPermissionHandler()));
 
-        // 分页插件，根据配置动态选择数据库类型
-        DbType mpDbType = DbType.MYSQL;
-        String type = dbType == null ? "mysql" : dbType.toLowerCase();
-        if ("postgres".equals(type) || "postgresql".equals(type)) {
-            mpDbType = DbType.POSTGRE_SQL;
-        }
-        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(mpDbType));
+        // 分页插件
+        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
 
         return interceptor;
     }
@@ -60,16 +47,4 @@ public class MybatisConfig {
         return globalConfig;
     }
 
-    /**
-     * 数据库类型自动识别
-     */
-    @Bean
-    public DatabaseIdProvider databaseIdProvider() {
-        DatabaseIdProvider databaseIdProvider = new VendorDatabaseIdProvider();
-        Properties properties = new Properties();
-        properties.setProperty("MySQL", "mysql");
-        databaseIdProvider.setProperties(properties);
-        return databaseIdProvider;
-    }
-
 }