blocks|key|8221674|text|使用以下命令使用户“tomcat”拥有整个tomcat目录：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|8221675|cd+/opt+&&+sudo+chown+-R+tomcat+tomcat/|code-block|syntax|javascript|8221676|对我起作用了。|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|K|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|L|8|@]|9|@]|A|$]]]|I|$]]

Make user 'tomcat' owner of the whole tomcat directory using below command: 

<pre><code>cd /opt &amp;&amp; sudo chown -R tomcat tomcat/
</code></pre>

It worked for me.

blocks|key|7186838|text|在我的例子中，我忘记更改JAVA_HOME在/etc/systemd/system/tomcat.service中的值，以匹配我的服务器JAVA_HOME。改变了它，一切都好起来了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|entityMap^0|C|9|M|Y|1W|9^^$0|@$1|2|3|4|5|6|7|G|8|@$9|H|A|I|B|C]|$9|J|A|K|B|C]|$9|L|A|M|B|C]]|D|@]|E|$]]]|F|$]]

In my case I forgot to change the value for <code>JAVA_HOME</code> in <code>/etc/systemd/system/tomcat.service</code> to match my servers <code>JAVA_HOME</code>. Changed it and everything is up and running fine.

blocks|key|7186628|text|这似乎是权限问题，您应该运行以下命令|type|unstyled|depth|inlineStyleRanges|entityRanges|data|7186629|sudo+chmod+-R+%2Bx+tomcat/|code-block|syntax|javascript|7186630|我遵循了教程中的目录结构(在数字海洋)。您可以用自己的安装dir替换tomcat/+dir。|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|K|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|L|8|@]|9|@]|A|$]]]|I|$]]

This appears to be a permission problem you should run the following command

<pre><code>sudo chmod -R +x tomcat/
</code></pre>

I followed the directory structure in the tutorial (at digitalocean) you are following. You may replace the tomcat/ dir with you own installation dir

blocks|key|7186779|text|关于执行systemctl启动tomcat的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|7186780|你会得到[Your+Issue]|offset|length|style|CODE|7186781|Job+for+tomcat.service+failed+because+the+control+process+exited+with+error+code.+See+"systemctl+status+tomcat.service"+and+"journalctl+-xe"+for+details.|code-block|syntax|javascript|7186782|按照上面关于执行journalctl+-xe的说明，您将得到以下结果：|7186783|Tomcat+appears+to+still+be+running+with+PID+*PROCESS_ID*.+Start+aborted.
If+the+following+process+is+not+a+Tomcat+process,+remove+the+PID+file+and+try+again:
UID++++++++PID++PPID++C+STIME+TTY++++++++++TIME+CMD
root+++++++982+++++1++0+09:51+?++++++++00:00:00+/sbin/wpa_supplicant+-u+-s+-O+/run/wpa_supplicant|7186784|使用(982是进程ID显示在日志982的结果中)|7186785|sudo+kill+-9+*PROCESS_ID*|7186786|然后执行|7186787|systemctl+start+tomcat开始手术。|7186788|Apache+tomcat已经启动并运行.|header-two|7186789|但这可能会禁用禁用WiFi的802.x请求程序。|7186790|若要解决此问题，请执行|7186791|sudo+service+network-manager+restart|7186792|希望这能有所帮助！|entityMap^0|0|4|C|0|0|8|E|0|0|0|0|P|0|0|0|M|0|0|0|0|0|10|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1B|8|@$D|1C|E|1D|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1E|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1F|8|@$D|1G|E|1H|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|1I|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|1J|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1K|8|@$D|1L|E|1M|F|G]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1N|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1O|8|@$D|1P|E|1Q|F|G]]|9|@]|A|$]]|$1|Y|3|Z|5|10|7|1R|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|1S|8|@]|9|@]|A|$]]|$1|13|3|14|5|6|7|1T|8|@]|9|@]|A|$]]|$1|15|3|16|5|6|7|1U|8|@$D|1V|E|1W|F|G]]|9|@]|A|$]]|$1|17|3|18|5|6|7|1X|8|@]|9|@]|A|$]]]|19|$]]

On executing
 systemctl start tomcat

You'll get <code>[Your Issue]</code>

<pre><code>Job for tomcat.service failed because the control process exited with error code. See "systemctl status tomcat.service" and "journalctl -xe" for details.
</code></pre>

Following above instruction on executing <code>journalctl -xe</code> you'll get following result:

<pre><code>Tomcat appears to still be running with PID *PROCESS_ID*. Start aborted.
If the following process is not a Tomcat process, remove the PID file and try again:
UID PID PPID C STIME TTY TIME CMD
root 982 1 0 09:51 ? 00:00:00 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
</code></pre>

Kill the process using (982 is process ID shown in journalctl's result)

<code>sudo kill -9 *PROCESS_ID*</code> 

Then execute

<code>systemctl start tomcat</code> to start tomact. 

Apache tomcat is up and running. 

But this may disable 802.x supplicant which disables WiFi.

To resolve this, execute 

<code>sudo service network-manager restart</code>

Hope this helps!

blocks|key|8221769|text|至少在Ubuntu和其他操作系统(如CentOS)中，我发现这个问题与bin文件夹中脚本的执行权限有关。在这种情况下，除了将所有者更改为用户tomcat之外，还必须为${TOMCAT}/bin文件夹中的脚本提供执行权限，特别是对startup.sh和shutdown.sh脚本。假设Tomcat包是在/opt/tomcat中提取的，那么：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|8221770|sudo+chmod+755+/opt/tomcat/bin/*.sh+|code-block|syntax|javascript|8221771|在那之后|8221772|sudo+systemctl+start+tomcat|entityMap^0|Z|3|1Y|6|2B|D|36|A|3H|B|46|B|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|13|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|14|8|@]|D|@]|E|$I|J]]]|O|$]]

At least in Ubuntu and other OS (like CentOS), I got this problem was related to execution permissions for the scripts in the <code>bin</code> folder. In this case, apart from changing the owner to the user <code>tomcat</code>, you have to provide execution permissions to the scripts in the <code>${TOMCAT}/bin</code> folder, in particular to the <code>startup.sh</code> and <code>shutdown.sh</code> scripts. Assuming the Tomcat package has been extracted in <code>/opt/tomcat</code>, then:

<pre><code>sudo chmod 755 /opt/tomcat/bin/*.sh 
</code></pre>

After that

<pre><code>sudo systemctl start tomcat
</code></pre>

I have installed the following distribution of Tomcat: <a href="http://mirror.its.dal.ca/apache/tomcat/tomcat-8/v8.5.4/bin/apache-tomcat-8.5.4.tar.gz" rel="nofollow">http://mirror.its.dal.ca/apache/tomcat/tomcat-8/v8.5.4/bin/apache-tomcat-8.5.4.tar.gz</a>

I have followed this instruction step by step: <a href="https://www.digitalocean.com/community/tutorials/how-to-install-apache-tomcat-8-on-ubuntu-16-04" rel="nofollow">https://www.digitalocean.com/community/tutorials/how-to-install-apache-tomcat-8-on-ubuntu-16-04</a>

And I have started the service by using the command <code>sudo systemctl start tomcat</code>, I have got the following error:

<pre><code>Job for tomcat.service failed because the control process exited with error code. See "systemctl status tomcat.service" and "journalctl -xe" for details.
</code></pre>

Thank you for your help in advance!

Unable to start Apache Tomcat 8.5.4 on Ubuntu 16.04

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

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我已经安装了Tomcat的以下发行版：http://mirror.its.dal.ca/apache/tomcat/tomcat-8/v8.5.4/bin/apache-tomcat-8.5.4.tar.gz我已经一步一步地遵循了这个指令：https://www.digitalocean.com/community/tutorials/how-to-install-apache-tomcat-8-

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