diff --git a/src/main/java/top/fjy8018/jpadatasource/config/DataAccessConfig.java b/src/main/java/top/fjy8018/jpadatasource/config/DataAccessConfig.java
index 429a033..870a5e0 100644
--- a/src/main/java/top/fjy8018/jpadatasource/config/DataAccessConfig.java
+++ b/src/main/java/top/fjy8018/jpadatasource/config/DataAccessConfig.java
@@ -1,11 +1,23 @@
 package top.fjy8018.jpadatasource.config;
 
 import com.zaxxer.hikari.HikariDataSource;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.transaction.PlatformTransactionManager;
+import top.fjy8018.jpadatasource.entity.backup.Order;
+import top.fjy8018.jpadatasource.entity.primary.Product;
+import top.fjy8018.jpadatasource.repository.backup.OrderRepository;
+import top.fjy8018.jpadatasource.repository.primary.ProductRepository;
+
+import javax.sql.DataSource;
 
 /**
  * @author F嘉阳
@@ -40,5 +52,49 @@ public class DataAccessConfig {
         return secondDataSourceProperties().initializeDataSourceBuilder()
                 .type(HikariDataSource.class).build();
     }
+
+    @Bean
+    @Primary
+    public LocalContainerEntityManagerFactoryBean firstEntityManagerFactory(
+            EntityManagerFactoryBuilder builder, @Qualifier("firstDataSource") DataSource dataSource) {
+        return builder
+                .dataSource(dataSource)
+                .packages(Product.class)
+                .persistenceUnit("first")
+                .build();
+    }
+
+    @Bean
+    public LocalContainerEntityManagerFactoryBean secondEntityManagerFactory(
+            EntityManagerFactoryBuilder builder, @Qualifier("secondDataSource") DataSource dataSource) {
+        return builder
+                .dataSource(dataSource)
+                .packages(Order.class)
+                .persistenceUnit("second")
+                .build();
+    }
+
+    @Bean
+    public PlatformTransactionManager primaryTransactionManager(
+            @Qualifier("firstEntityManagerFactory") LocalContainerEntityManagerFactoryBean entityManagerFactory) {
+        return new JpaTransactionManager(entityManagerFactory.getObject());
+    }
+
+    @Bean
+    public PlatformTransactionManager backupTransactionManager(
+            @Qualifier("secondEntityManagerFactory") LocalContainerEntityManagerFactoryBean entityManagerFactory) {
+        return new JpaTransactionManager(entityManagerFactory.getObject());
+    }
+
+    @EnableJpaRepositories(basePackageClasses = ProductRepository.class,
+            entityManagerFactoryRef = "firstEntityManagerFactory", transactionManagerRef = "primaryTransactionManager")
+    @Primary
+    public class PrimaryConfiguration {
+    }
+
+    @EnableJpaRepositories(basePackageClasses = OrderRepository.class,
+            entityManagerFactoryRef = "secondEntityManagerFactory", transactionManagerRef = "backupTransactionManager")
+    public class secondConfiguration {
+    }
 }
 
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 3d26e7a..7417067 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -23,4 +23,5 @@ spring:
     properties:
       hibernate:
         format_sql: true
-        use_sql_comments: true
\ No newline at end of file
+        use_sql_comments: true
+    generate-ddl: true
\ No newline at end of file