在mac使用ElasticSearch时，出现了一个少见的错误，错误代码如下
2019-10-15T09:16:46,036][INFO ][o.e.n.Node ] [] initializing ...
[2019-10-15T09:16:46,093][ERROR][o.e.b.Bootstrap ] Exception
java.security.AccessControlException: access denied ("java.io.FilePermission" "/System/Volumes/Data/Users/first/work/elasticsearch/elasticsearch-5.6.16/data/nodes/0" "write")
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:472) ~[?:1.8.0_181]
at java.security.AccessController.checkPermission(AccessController.java:884) ~[?:1.8.0_181]
at java.lang.SecurityManager.checkPermission(SecurityManager.java:549) ~[?:1.8.0_181]
at java.lang.SecurityManager.checkWrite(SecurityManager.java:979) ~[?:1.8.0_181]
at sun.nio.fs.UnixPath.checkWrite(UnixPath.java:801) ~[?:?]
at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:376) ~[?:?]
at java.nio.file.Files.createDirectory(Files.java:674) ~[?:1.8.0_181]
at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781) ~[?:1.8.0_181]
at java.nio.file.Files.createDirectories(Files.java:727) ~[?:1.8.0_181]
at org.apache.lucene.store.NativeFSLockFactory.obtainFSLock(NativeFSLockFactory.java:92) ~[lucene-core-6.6.1.jar:6.6.1 9aa465a89b64ff2dabe7b4d50c472de32c298683 - varunthacker - 2017-08-29 21:54:39]
at org.apache.lucene.store.FSLockFactory.obtainLock(FSLockFactory.java:41) ~[lucene-core-6.6.1.jar:6.6.1 9aa465a89b64ff2dabe7b4d50c472de32c298683 - varunthacker - 2017-08-29 21:54:39]
at org.apache.lucene.store.BaseDirectory.obtainLock(BaseDirectory.java:45) ~[lucene-core-6.6.1.jar:6.6.1 9aa465a89b64ff2dabe7b4d50c472de32c298683 - varunthacker - 2017-08-29 21:54:39]
at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:230) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.node.Node.<init>(Node.java:265) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.node.Node.<init>(Node.java:245) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:233) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:233) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:342) [elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:132) [elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) [elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:70) [elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) [elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) [elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) [elasticsearch-5.6.16.jar:5.6.16]
[2019-10-15T09:16:46,103][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.security.AccessControlException: access denied ("java.io.FilePermission" "/System/Volumes/Data/Users/first/work/elasticsearch/elasticsearch-5.6.16/data/nodes/0" "write")
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:70) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.6.16.jar:5.6.16]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.6.16.jar:5.6.16]
看到上面的错误，首先想到的是没有权限
那就对文件夹赋值权限呗
sudo chmod -R 777 文件夹位置
结果问题依然存在
然后就感觉是执行文件没有权限
进入ElasticSearch的bin目录
执行 chmod +x *.* （给文件访问权限)
问题依然没有解决
百思不得其解，后在*上找到了类似的问题
发现是java.policy的问题
问的java.policy的文件位置 /Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/jre/lib/security
管理员权限vim java.policy
然后再grant{}的最后加上permission java.security.AllPermission;
重新启动elasticSearch.
正常启动