maven提示好多jar包拉不下来，能处理下吗？
部分日志：
[ERROR] Failed to execute goal on project Mycat-web: Could not resolve dependencies for project io.mycat.mycat:Mycat-web:war:1.0-SNAPSHOT: Failed to collect dependencies at io.mycat:jrds-mycat:jar:1.0.0
: Failed to read artifact descriptor for io.mycat:jrds-mycat:jar:1.0.0: Could not transfer artifact io.mycat:jrds-mycat:pom:1.0.0 from/to nexus (http://nexus.mycat.io/content/groups/public): Failed to t
ransfer file: http://nexus.mycat.io/content/groups/public/io/mycat/jrds-mycat/1.0.0/jrds-mycat-1.0.0.pom. Return code is: 502 , ReasonPhrase:Bad Gateway. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project Mycat-web: Could not resolve dependencies for project io.mycat.mycat:Mycat-web:war:1.0-SNAPSHOT: Failed to colle
ct dependencies at io.mycat:jrds-mycat:jar:1.0.0
maven提示好多jar包拉不下来，能处理下吗？
部分日志：
[ERROR] Failed to execute goal on project Mycat-web: Could not resolve dependencies for project io.mycat.mycat:Mycat-web:war:1.0-SNAPSHOT: Failed to collect dependencies at io.mycat:jrds-mycat:jar:1.0.0
: Failed to read artifact descriptor for io.mycat:jrds-mycat:jar:1.0.0: Could not transfer artifact io.mycat:jrds-mycat:pom:1.0.0 from/to nexus (http://nexus.mycat.io/content/groups/public): Failed to t
ransfer file: http://nexus.mycat.io/content/groups/public/io/mycat/jrds-mycat/1.0.0/jrds-mycat-1.0.0.pom. Return code is: 502 , ReasonPhrase:Bad Gateway. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project Mycat-web: Could not resolve dependencies for project io.mycat.mycat:Mycat-web:war:1.0-SNAPSHOT: Failed to colle
ct dependencies at io.mycat:jrds-mycat:jar:1.0.0