sonarqube启动不了，StartSonar.bat运行后自动关闭
自己本地装了SonarQube，第一次启动正常。隔天启动bat时发现自动停止，反复这样。
网上找了半天没找到解决原因，后来查看*/logs/sonar.log报错日志：
--> Wrapper Started as Console
Launching a JVM...
Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org
Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved.
2018.05.08 10:49:22 INFO app[][o.s.a.AppFileSystem] Cleaning or creating temp directory D:\sonarqube-6.7.3\temp
2018.05.08 10:49:22 INFO app[][o.s.a.es.EsSettings] Elasticsearch listening on /127.0.0.1:9001
2018.05.08 10:49:22 INFO app[][o.s.a.p.ProcessLauncherImpl] Launch process[[key='es', ipcIndex=1, logFilenamePrefix=es]] from [D:\sonarqube-6.7.3\elasticsearch]: C:\Program Files\Java\jdk1.8.0_60\jre\bin\java -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -server -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djna.nosys=true -Djdk.io.permissionsUseCanonicalPath=true -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread=0 -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -Dlog4j.skipJansi=true -Xms512m -Xmx512m -XX:+HeapDumpOnOutOfMemoryError -Delasticsearch -Des.path.home=D:\sonarqube-6.7.3\elasticsearch -cp lib/* org.elasticsearch.bootstrap.Elasticsearch -Epath.conf=D:\sonarqube-6.7.3\temp\conf\es
2018.05.08 10:49:22 INFO app[][o.s.a.SchedulerImpl] Waiting for Elasticsearch to be up and running
2018.05.08 10:49:22 INFO app[][o.e.p.PluginsService] no modules loaded
2018.05.08 10:49:22 INFO app[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.transport.Netty4Plugin]
2018.05.08 10:49:37 INFO app[][o.s.a.SchedulerImpl] Process[es] is up
2018.05.08 10:49:37 INFO app[][o.s.a.p.ProcessLauncherImpl] Launch process[[key='web', ipcIndex=2, logFilenamePrefix=web]] from [D:\sonarqube-6.7.3]: C:\Program Files\Java\jdk1.8.0_60\jre\bin\java -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djava.io.tmpdir=D:\sonarqube-6.7.3\temp -Xmx512m -Xms128m -XX:+HeapDumpOnOutOfMemoryError -cp ./lib/common/*;./lib/server/*;D:\sonarqube-6.7.3\lib\jdbc\mysql\mysql-connector-java-5.1.42.jar org.sonar.server.app.WebServer D:\sonarqube-6.7.3\temp\sq-process788372130792074105properties
Tue May 08 10:49:39 CST 2018 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
2018.05.08 10:49:39 INFO app[][o.s.a.SchedulerImpl] Process [web] is stopped
2018.05.08 10:49:39 INFO app[][o.s.a.SchedulerImpl] Process [es] is stopped
2018.05.08 10:49:39 INFO app[][o.s.a.SchedulerImpl] SonarQube is stopped
2018.05.08 10:49:39 WARN app[][o.e.t.n.Netty4Transport] exception caught on transport layer [[id: 0x146d8150, L:/127.0.0.1:55603 - R:/127.0.0.1:9001]], closing connection
java.io.IOException: 远程主机强迫关闭了一个现有的连接。
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:192)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at io.netty.buffer.UnpooledUnsafeDirectByteBuf.setBytes(UnpooledUnsafeDirectByteBuf.java:433)
at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1100)
at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:372)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:123)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:644)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:579)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:496)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:458)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at java.lang.Thread.run(Thread.java:745)提示：远程主机强迫关闭了一个现有的连接。然后再查看*/logs/web.log日志，发现具体报错原因：
2018.05.08 10:49:37 INFO web[][o.s.p.ProcessEntryPoint] Starting web
2018.05.08 10:49:37 INFO web[][o.a.t.u.n.NioSelectorPool] Using a shared selector for servlet write/read
2018.05.08 10:49:38 INFO web[][o.e.p.PluginsService] no modules loaded
2018.05.08 10:49:38 INFO web[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.index.reindex.ReindexPlugin]
2018.05.08 10:49:38 INFO web[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.join.ParentJoinPlugin]
2018.05.08 10:49:38 INFO web[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.percolator.PercolatorPlugin]
2018.05.08 10:49:38 INFO web[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.transport.Netty4Plugin]
2018.05.08 10:49:39 INFO web[][o.s.s.e.EsClientProvider] Connected to local Elasticsearch: [127.0.0.1:9001]
2018.05.08 10:49:39 INFO web[][o.s.s.p.LogServerVersion] SonarQube Server / 6.7.3.38370 / baa823c2ae6ed4dd406b2ef12bc5ac6201e466f9
2018.05.08 10:49:39 INFO web[][o.sonar.db.Database] Create JDBC data source for jdbc:mysql://localhost:3306/sonar?useUnicode=true&characterEncoding=utf8&rewriteBatchedStatements=true&useConfigs=maxPerformance
2018.05.08 10:49:39 ERROR web[][o.s.s.p.Platform] Web server startup failed
java.lang.IllegalStateException: Can not connect to database. Please check connectivity and settings (see the properties prefixed by 'sonar.jdbc.').
at org.sonar.db.DefaultDatabase.checkConnection(DefaultDatabase.java:108)
at org.sonar.db.DefaultDatabase.start(DefaultDatabase.java:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.invokeMethod(ReflectionLifecycleStrategy.java:110)
at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.start(ReflectionLifecycleStrategy.java:89)
at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:84)
at org.picocontainer.behaviors.AbstractBehavior.start(AbstractBehavior.java:169)
at org.picocontainer.behaviors.Stored$RealComponentLifecycle.start(Stored.java:132)
at org.picocontainer.behaviors.Stored.start(Stored.java:110)
at org.picocontainer.DefaultPicoContainer.potentiallyStartAdapter(DefaultPicoContainer.java:1016)
at org.picocontainer.DefaultPicoContainer.startAdapters(DefaultPicoContainer.java:1009)
at org.picocontainer.DefaultPicoContainer.start(DefaultPicoContainer.java:767)
at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:134)
at org.sonar.server.platform.platformlevel.PlatformLevel.start(PlatformLevel.java:90)
at org.sonar.server.platform.Platform.start(Platform.java:211)
at org.sonar.server.platform.Platform.startLevel1Container(Platform.java:170)
at org.sonar.server.platform.Platform.init(Platform.java:86)
at org.sonar.server.platform.web.PlatformServletContextListener.contextInitialized(PlatformServletContextListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4745)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5207)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Unknown database 'sonar')
at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549)
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
at org.sonar.db.profiling.NullConnectionInterceptor.getConnection(NullConnectionInterceptor.java:31)
at org.sonar.db.profiling.ProfiledDataSource.getConnection(ProfiledDataSource.java:323)
at org.sonar.db.DefaultDatabase.checkConnection(DefaultDatabase.java:106)
... 29 common frames omitted
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'sonar'
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:943)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873)
at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2194)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2225)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2024)
at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:779)
at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)
at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)
at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)
... 34 common frames omitted Web server startup failed
java.lang.IllegalStateException: Can not connect to database. Please check connectivity and settings (see the properties prefixed by 'sonar.jdbc.').发现是与mysql数据库连接出现问题，具体是未在本地mysql里创建用于sonar的库。于是：
1、Mysql中创建sonardb：Create database sonardb；
2、D:\sonarqube-6.7.3\conf的sonar.properties文件修改配置：
#----- MySQL 5.6 or greater
下添加：
sonar.jdbc.url=jdbc:mysql://localhost:3306/sonardb?useUnicode=true&characterEncoding=utf8&rewriteBatchedStatements=true&useConfigs=maxPerformance
sonar.jdbc.username=root
sonar.jdbc.password=root
sonar.sorceEncoding=UTF-8
sonar.login=admin
sonar.password=admin