Add @ConditionalOnMissingBean to ServerConfig and EbeanServer

Author: yuanxuegui

spring-boot-autoconfigure-data-ebean/src/main/java/org/springframework/boot/autoconfigure/data/ebean/EbeanRepositoriesAutoConfiguration.java

@@ -71,7 +71,8 @@ public Object currentUser() {
 
   @SuppressWarnings("SpringJavaAutowiringInspection")
   @Bean
-  public ServerConfig defaultEbeanServerConfig(DataSource dataSource, CurrentUserProvider currentUserProvider) {
+  @ConditionalOnMissingBean
+  public ServerConfig serverConfig(DataSource dataSource, CurrentUserProvider currentUserProvider) {
     ServerConfig config = new ServerConfig();
 
     config.setDataSource(dataSource);
@@ -89,8 +90,9 @@ public ServerConfig defaultEbeanServerConfig(DataSource dataSource, CurrentUserP
   }
 
   @Bean
-  public EbeanServer defaultEbeanServer(ServerConfig defaultEbeanServerConfig) {
-    return EbeanServerFactory.create(defaultEbeanServerConfig);
+  @ConditionalOnMissingBean
+  public EbeanServer ebeanServer(ServerConfig serverConfig) {
+    return EbeanServerFactory.create(serverConfig);
   }
 
   @Bean