blocks|key|646387|text|从我的头脑中，我认为Eclipse启动tomcat服务器时没有任何内容，即没有web应用程序。您必须在Eclipse服务器中“运行”或实际部署一些东西，这样就不会得到404了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|646388|您确实收到404错误消息这一事实表明Tomcat实际上正在运行。如果你从Eclipse上关闭它，你就不会再得到那些404了;)|646389|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

From the top of my head, I thought Eclipse started the tomcat server without anything in it, i.e. no web applications. You have to 'run' or actually deploy something in that Eclipse Tomcat server so you won't get the 404s.

The fact that you do get 404 error messages indicates that Tomcat actually IS running. If you shut it down from Eclipse, you won't get those 404's anymore ;)

blocks|key|611167|text|如果您想查看Tomcat主页，则需要指定服务器路径和部署路径。默认设置为使用工作区元数据(不修改Tomcat安装)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|611168|如何做。。|offset|length|style|BOLD|611169|611170|首先在Eclipse中打开服务器的视图。(窗口Servers).|ordered-list-item|611171|Double+>>+Show+>>+>>单击Tomcat打开服务器概述。|611172|然后设置服务器位置以使用Tomcat安装(控制Tomcat安装)。保存changes.|611173|Restart您的服务器，然后转到localhost:8080。这将打开服务器的Apache主页.|611174|611175|希望这能有所帮助！|611176|entityMap|0|LINK|mutability|MUTABLE|url|http://localhost:8080/^0|0|0|4|0|0|0|0|0|H|E|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@$D|14|E|15|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|17|8|@]|9|@]|A|$]]|$1|L|3|M|5|K|7|18|8|@]|9|@]|A|$]]|$1|N|3|O|5|K|7|19|8|@]|9|@]|A|$]]|$1|P|3|Q|5|K|7|1A|8|@]|9|@$D|1B|E|1C|1|1D]]|A|$]]|$1|R|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1F|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

If your wanting to see your Tomcat Server Homepage then you will need to specify the server path and deploy path. The default is set to Use workspace metadata (does not modify your Tomcat installation).

How to do it.

<ol>
<li>Firstly open the Server's view in Eclipse. (Window >> Show View >> Servers).</li>
<li>Double click on your Tomcat Server to open the Server Overview.</li>
<li>Then set the Server Locations to Use Tomcat installation (takes control of Tomcat installation). Save the changes.</li>
<li>Restart your Server and then go to <a href="http://localhost:8080">localhost:8080</a>. This should open the Apache Tomcat Homepage for your server.</li>
</ol>

Hope this helps!

blocks|key|286638|text|当Tomcat找不到localhost.ser文件时，会出现错误404。为了摆脱这个问题，请遵循以下步骤:+1)在Eclipse中，右键单击服务器->+Properties+->>Apply->Ok(这将将工作区元数据位置切换到已安装的Tomcat位置。)然后返回服务器，双击它。这将打开概述选项卡。在此选项卡下，goto+-->Server+Location+->选择Use+Tomcat+Installation组合框。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|286639|现在关闭它，保存它，尝试运行您的服务器，然后重新运行URL。|286640|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The error 404 appears when Tomcat can't find the localhost.ser file.
In order to get rid of this follow these steps:
1) In Eclipse, right click on server --> Properties --> Click Switch Location --> Apply-->Ok
(This will switch the [workspace metadata] location to the installed Tomcat location.)
2) Then go back to server, double click it. This will open Overview tab. Under this tab goto -->Server Location --> Select Use Tomcat Installation combo box.

Now close it, save it and try run your server and then rerun the URL.

blocks|key|611043|text|我同意你的意见。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|611044|转到"Servers“窗口，然后选择Tomcat实例。Double.click在这里您将看到“概述”窗口。在这里，您可以单击“”来查看Tomcat参数(“参数”选项卡)。|611045|查找系统属性"-Dwtp.deploy“。这个目录是Tomcat寻找安装的web应用程序的地方，我认为这里没有ROOT.war应用程序。不是吗？:-)|611046|希望这能帮到你|611047|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

I agree to drvdijk.

Go to "Servers" window, then select your Tomcat instance. Double.click here you will see the "overview" window. Here you can click on "Open launch configuration" to see your Tomcat arguments ("Arguments" tab).

Look for the system property "-Dwtp.deploy". This directory is where your Tomcat is looking for installed web applications, i think you don't have ROOT.war application here. Isn't it? :-)

Hope this will help you

blocks|key|277861|text|我认为问题在于当您使用http://localhost:8080/时应该使用http://localhost:8080/appname|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|277862|entityMap|0|LINK|mutability|MUTABLE|url|http://localhost:8080/|1|http://localhost:8080/appname^0|B|M|0|12|T|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

i think the problem is <a href="http://localhost:8080/" rel="nofollow noreferrer">http://localhost:8080/</a> when you should use 
<a href="http://localhost:8080/appname" rel="nofollow noreferrer">http://localhost:8080/appname</a>

blocks|key|646485|text|查看下面的URL是否有助于解决问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|646486|http://www.youtube.com/watch?v=orctlc_F5Y0|offset|length|646487|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|16|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

see if below URL Helps to resolve the issue

<a href="http://www.youtube.com/watch?v=orctlc_F5Y0" rel="nofollow">http://www.youtube.com/watch?v=orctlc_F5Y0</a>

blocks|key|286600|text|问题就像drvdijk提到的一样，为了在eclipse的tomcat上运行webapp，需要将它“部署”到它上。这可以通过右键单击tomcat服务器->添加和删除来完成。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|286601|或者，您可以尝试在eclipse之外启动tomcat服务器。转到命令行并键入|286602|++$CATALINA_HOME\bin\startup.bat++++++++++(Windows)

++$CATALINA_HOME/bin/startup.sh+++++++++++(Unix)|code-block|syntax|javascript|286603|其中$catalina_home是安装tomcat的目录。|286604|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The problem is just as drvdijk mentioned, in order to run a webapp on tomcat from eclipse, it needs to be "deployed" to it. This can be done by right clicking the tomcat server -> add and remove

Alternatively, you can try to startup your tomcat server outside of eclipse. Go to your command line and type 

<pre><code> $CATALINA_HOME\bin\startup.bat (Windows)

 $CATALINA_HOME/bin/startup.sh (Unix)
</code></pre>

Where $catalina_home is the directory of where you installed tomcat

blocks|key|611256|text|启动eclipse+，作为管理运行|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|611257|++For+that+right+click+on+eclipse----->+run+as+administration.|code-block|syntax|javascript|611258|它起作用了。|611259|如果它不起作用，那么再次执行同样的操作，然后执行以下步骤：|611260|611261|blockquote|611262|611263|611264|In+|ordered-list-item|611265|，右键单击服务器->属性->单击开关位置->应用->确定|611266|611267|(这将将工作区元数据位置切换到安装的Tomcat位置。)|611268|然后返回到服务器，双击它。这将打开概述选项卡。在此选项卡下goto+-->服务器位置->选择“使用Tomcat安装组合框”.|unordered-list-item|611269|611270|现在关闭它，保存它，尝试运行您的服务器，然后重新运行URL。|611271|entityMap^0|A|5|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|1C|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1D|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|1E|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]|$1|P|3|-4|5|Q|7|1G|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1I|8|@]|D|@]|E|$]]|$1|T|3|U|5|V|7|1J|8|@]|D|@]|E|$]]|$1|W|3|X|5|V|7|1K|8|@]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|1L|8|@]|D|@]|E|$]]|$1|Z|3|10|5|6|7|1M|8|@]|D|@]|E|$]]|$1|11|3|12|5|13|7|1N|8|@]|D|@]|E|$]]|$1|14|3|-4|5|6|7|1O|8|@]|D|@]|E|$]]|$1|15|3|16|5|6|7|1P|8|@]|D|@]|E|$]]|$1|17|3|-4|5|6|7|1Q|8|@]|D|@]|E|$]]]|18|$]]

Launch your eclipse Run as administration: 
 For that right click on eclipse-----> run as administration. 
It works.

If it not works then again do same and then follow these steps: 

<blockquote>
 <ol>
 <li>In Eclipse, right click on server --> Properties --> Click Switch
 Location --> Apply-->Ok 
 (This will switch the [workspace metadata]
 location to the installed Tomcat location.) </li>
 <li>Then go back to server, double click it. This will open Overview
 tab. Under this tab goto -->Server Location --> Select Use Tomcat
 Installation combo box.</li>
 </ol>
</blockquote>

Now close it, save it and try run your server and then rerun the URL.

blocks|key|277986|text|双击服务器2-确保正确切换了tomcat的目录|type|unstyled|depth|inlineStyleRanges|entityRanges|data|277987|先于|offset|length|style|BOLD|277988|​|277989|📷|atomic|277990|277991|修正后|277992|277993|277994|3-即使你做了上面的#2，你可能也需要在这里做这个！|277995|又来了!|277996|277997|277998|277999|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/5a81b9e1e07d3a730a7ac1e339265288.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/5abe330d2c8b172f704bd1cc67290b22.png|2|https://developer.qcloudimg.com/http-save/yehe-900000/92fd8c4fda4775d2ae816ff2d9aca731.png^0|0|0|2|0|0|0|1|0|0|0|0|0|1|1|0|0|0|0|4|0|0|0|1|2|0|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1F|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1G|8|@]|9|@$D|1H|E|1I|1|1J]]|A|$]]|$1|M|3|I|5|6|7|1K|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|1L|8|@]|9|@]|A|$]]|$1|P|3|K|5|L|7|1M|8|@]|9|@$D|1N|E|1O|1|1P]]|A|$]]|$1|Q|3|I|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1R|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1S|8|@$D|1T|E|1U|F|G]]|9|@]|A|$]]|$1|V|3|I|5|6|7|1V|8|@]|9|@]|A|$]]|$1|W|3|K|5|L|7|1W|8|@]|9|@$D|1X|E|1Y|1|1Z]]|A|$]]|$1|X|3|I|5|6|7|20|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|21|8|@]|9|@]|A|$]]]|Z|$10|$5|11|12|13|A|$14|15|16|-4]]|17|$5|11|12|13|A|$14|18|16|-4]]|19|$5|11|12|13|A|$14|1A|16|-4]]]]

1- double click on server
2- Make Sure You have switched correctly the directory for tomcat here

Before

<a href="https://i.stack.imgur.com/EehWW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EehWW.png" alt="enter image description here"></a>

After Fix
<a href="https://i.stack.imgur.com/tRpAb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tRpAb.png" alt="enter image description here"></a>

3- And Even if you do #2 above you may need do this here as well !

Again here !

<a href="https://i.stack.imgur.com/uH5Ln.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uH5Ln.png" alt="enter image description here"></a>

blocks|key|646762|text|另外，请注意，如果您的路径中有一个复制的WEB。有时候，在更新maven项目之后，您可能会遇到这个问题，Tomcat会指向一个空文件夹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|646763|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Also, notice if you have a duplicated WEB-INF in your path. Sometimes after update a maven project you may have this issue and Tomcat points to an empty folder.

blocks|key|646801|text|尝试使用Tomcat+9而不是Tomcat+10|type|unstyled|depth|inlineStyleRanges|entityRanges|data|646802|运行在Tomcat+9和更早版本上的应用程序不会在Tomcat+10上运行，而不会发生更改。为Tomcat+9及更早版本设计的基于javaee的应用程序可以放在$CATALINA_BASE/+webapps+javaee目录中，Tomcat将自动将它们转换到Jakarta并将它们复制到webapp目录中。此转换使用Apache迁移工具(用于Jakarta工具)执行，该工具也可作为单独下载供脱机使用。|646803|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Try to use Tomcat 9 Instead of Tomcat 10
Applications that run on Tomcat 9 and earlier will not run on Tomcat 10 without changes. Java EE based applications designed for Tomcat 9 and earlier may be placed in the $CATALINA_BASE/webapps-javaee directory and Tomcat will automatically convert them to Jakarta EE and copy them to the webapps directory. This conversion is performed using the Apache Tomcat migration tool for Jakarta EE tool which is also available as a separate download for off-line use.

I downloaded Apache Tomcat 6.0.2
And created a new server in Eclipse

<ol>
<li>New -> Server</li>
<li>Select "Tomcat v6.0 Server", Next</li>
<li>Tomcat Installation Directory -> Where I unzipped Apache Tomcat 6.0.2</li>
<li>Finish</li>
</ol>

Then I start the server and go to <a href="http://localhost:8080/" rel="noreferrer">http://localhost:8080/</a> to see if it works. And I get a 404 error.

I've already googled it and tried to find a solution. But none of those remedies seem to work.

Any thoughts on what the problem is?

Apache Tomcat 404 Error

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。

页面排版不美观，阅读体验差。

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我下载了Apache 6.0.2，并在Eclipse中创建了一个新服务器选择“Tomcatv6.0Server”，Next Tomcat安装目录->，解压缩Apache 然后启动服务器并转到查看它是否有效。我得到一个404错误。我已经在谷歌上搜索过并试图找到解决方案。但这些补救措施似乎都不起作用。对问题是什么有什么想法吗？

问404错误
EN

回答 11

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