diff --git a/austin-web/src/main/java/com/java3y/austin/web/service/impl/DataServiceImpl.java b/austin-web/src/main/java/com/java3y/austin/web/service/impl/DataServiceImpl.java
index 0e0a9f6..5925795 100644
--- a/austin-web/src/main/java/com/java3y/austin/web/service/impl/DataServiceImpl.java
+++ b/austin-web/src/main/java/com/java3y/austin/web/service/impl/DataServiceImpl.java
@@ -71,7 +71,7 @@ public class DataServiceImpl implements DataService {
         }
 
         // 0. 按时间排序
-        List<SimpleAnchorInfo> sortAnchorList = userInfoList.stream().map(s -> JSON.parseObject(s, SimpleAnchorInfo.class)).sorted(Comparator.comparing(SimpleAnchorInfo::getTimestamp).reversed()).collect(Collectors.toList());
+        List<SimpleAnchorInfo> sortAnchorList = userInfoList.stream().map(s -> JSON.parseObject(s, SimpleAnchorInfo.class)).sorted((o1, o2) -> Math.toIntExact(o1.getTimestamp() - o2.getTimestamp())).collect(Collectors.toList());
         return buildUserTimeLineVo(sortAnchorList);
     }
 
diff --git a/学习总结/本地编译常见问题.md b/学习总结/本地编译常见问题.md
deleted file mode 100644
index 64a3634..0000000
--- a/学习总结/本地编译常见问题.md
+++ /dev/null
@@ -1,24 +0,0 @@
-# 1. 编译问题总结
-* 问题1
-```
-解决IDEA中打包时报：Could not transfer artifact org.pentaho:pentaho-aggdesigner-algorithm:pom:5.1.5-jhyde问题
-```
-解决方法：
-在maven下的setting.xml文件中加入下面的镜像配置内容
-```
-<mirror>
-	<id>alimaven</id>
-	<name>aliyun maven</name> 
-	<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
-	<mirrorOf>central</mirrorOf>
-</mirror> 
-   
-<mirror>
-	<id>aliyunmaven</id>
-	<mirrorOf>*</mirrorOf>
-	<name>spring-plugin</name>
-	<url>https://maven.aliyun.com/repository/spring-plugin</url>
-</mirror>
-```
-最后再进行编译`mvn clean instanll -Dmaven.test.skip -U`
-