问题：mvn编译的时候报错

 1）Checksum validation failed, expected <!DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5
2）读取/Users/.m2/repository/com/alibaba/druid/1.0.20/druid-1.0.20.jar时出错; error in opening zip file

[INFO] --------------------------------[ jar ]---------------------------------
Downloading from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.pom
Downloaded from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.pom (0 B at 0 B/s)
[WARNING] The POM for org.springframework:spring-core:jar:4.2.6.RELEASE is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
Downloading from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar
[WARNING] Checksum validation failed, expected <!DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5 from codelds for https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar
[WARNING] Could not validate integrity of download from https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar: Checksum validation failed, expected <!DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5
[WARNING] Checksum validation failed, expected <!DOCTYPE but is c53aeb6e9e798502f6e4d9283b4747c24ceba6f5 from codelds for https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar
Downloaded from codelds: https://code.lds.org/nexus/content/groups/main-repo/org/springframework/spring-core/4.2.6.RELEASE/spring-core-4.2.6.RELEASE.jar (7.5 kB at 1.9 kB/s)。。。。
[ERROR] 读取/Users/.m2/repository/com/alibaba/druid/1.0.20/druid-1.0.20.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/org/hibernate/hibernate-core/4.3.11.Final/hibernate-core-4.3.11.Final.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/org/hibernate/hibernate-ehcache/4.3.11.Final/hibernate-ehcache-4.3.11.Final.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/org/quartz-scheduler/quartz/2.2.2/quartz-2.2.2.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/com/oracle/ojdbc6/11.2.0.3/ojdbc6-11.2.0.3.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/com/alibaba/druid/1.0.20/druid-1.0.20.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/org/hibernate/hibernate-core/4.3.11.Final/hibernate-core-4.3.11.Final.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/org/hibernate/hibernate-ehcache/4.3.11.Final/hibernate-ehcache-4.3.11.Final.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/org/quartz-scheduler/quartz/2.2.2/quartz-2.2.2.jar时出错; error in opening zip file
[ERROR] 读取/Users/.m2/repository/com/oracle/ojdbc6/11.2.0.3/ojdbc6-11.2.0.3.jar时出错; error in opening zip file

分析：

问了下度娘，说jar包下载问题，可能是权限什么的问题，巴拉巴拉。。。

解决：

看了项目的pom，引用了远程仓库https://code.lds.org/nexus/content/groups/main-repo，

浏览器查看发现该网站正在维护，于是修改了远程仓库的地址，用中央仓库下载编译就可以了；