查询sql优化

pom.xml

@@ -11,7 +11,7 @@
     <groupId>xyz.zinglizingli</groupId>
     <artifactId>fiction_hourse</artifactId>
     <version>1.1</version>
-    <name>search</name>
+    <name>fiction_hourse</name>
     <description>小说精品楼</description>
 
     <properties>

src/main/java/xyz/zinglizingli/BookApplication.java

@@ -9,18 +9,16 @@ import org.springframework.scheduling.TaskScheduler;
 import org.springframework.scheduling.annotation.EnableScheduling;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
 
-import java.io.UnsupportedEncodingException;
-
 @SpringBootApplication
 @EnableCaching
 @EnableScheduling
 @MapperScan({"xyz.zinglizingli.*.mapper"})
-public class SearchApplication {
+public class BookApplication {
 
     public static void main(String[] args) {
 
 
-        SpringApplication.run(SearchApplication.class, args);
+        SpringApplication.run(BookApplication.class, args);
     }
 
     /**

src/main/resources/mybatis/mapping/BookMapper.xml

@@ -386,5 +386,6 @@
                 </trim>
             </foreach>
         </where>
+        limit 3
     </select>
 </mapper>