jdk版本无法编译的问题

[weixin_38051760]

用Jdk1.7编译在tomcat运行时报：java.lang.UnsupportedClassVersionError: org/apache/solr/client/solrj/SolrServerException : Unsupported major.minor version 52.0 (unable to load class org.apache.solr.client.solrj.SolrServerException) 然后换成jdk1.8又报：java.lang.Error: Unresolved compilation problem:  The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files 这是不是死循环了我靠。