blocks|key|2119751|text|根据您的代码结构，您的项目屋顶文件夹中没有index.jsp/html。在运行服务器时，它将在默认情况下首先查找index.html/jsp。如果它不可用，它将返回404错误。要解决这个问题，您可以添加下面的web.xml文件行，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2119752|<welcome-file-list>
<welcome-file>/jsp/login.jsp</welcome-file>
</welcome-file-list>|code-block|syntax|javascript|2119753|保存所有更改并运行服务器。如果问题再次存在，您必须检查Struts配置文件和构建路径。|2119754|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

As per your code structure, you are not having index.jsp/html in your project roof folder. While running the server it will first find out the index.html/jsp by default. If its not available it will returns the 404 error. To fix this you can add the following lines your web.xml file,

<pre><code>&lt;welcome-file-list&gt;
&lt;welcome-file&gt;/jsp/login.jsp&lt;/welcome-file&gt;
&lt;/welcome-file-list&gt;
</code></pre>

Save all your changes and run your server. If the problem again exists you have to check Struts configuration file and the build path.

blocks|key|2908482|text|你的计划真的很奇怪。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2908483|顺便说一句，你必须：|2908484|在您的<package>+struts.xml中声明一个<struts>；操作不直接进入<struts>元素；|unordered-list-item|offset|length|style|CODE|2908485|给那个包"/StrutsPro"命名空间；|BOLD|2908486|在LoginAction中声明一个检查用户凭据的方法(+execute()将打开将由用户填充的execute()页面，例如，tryToLogin()将接收来自POST的数据并尝试根据数据库验证数据)；或者，您可以使用两个方法指定两个不同的操作，而不是一个操作，这取决于您；|2908487|在您的<s:submit+/>中放置一个<s:form>按钮，将数据发送到登录方法/操作；|2908488|调用指向Action的url，而不是JSP。JSP是视图，它总是由控制器返回，在Struts2中是Action。运行Action时，Action将为您提供评估过的JSP。您不运行JSP。|2908489|例如，您应该调用：http://localhost:8080/StrutsPro/login.action或http://localhost:8080/StrutsPro/login.do，根据您在web.xml中为操作提供的扩展|2908490|entityMap^0|0|0|3|9|S|8|18|8|0|4|C|0|1|B|S|9|1B|9|1Q|C|0|3|C|K|8|0|0|9|18|1I|14|2R|7|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Z|8|@$G|10|H|11|I|J]|$G|12|H|13|I|J]|$G|14|H|15|I|J]]|9|@]|A|$]]|$1|K|3|L|5|F|7|16|8|@$G|17|H|18|I|M]]|9|@]|A|$]]|$1|N|3|O|5|F|7|19|8|@$G|1A|H|1B|I|M]|$G|1C|H|1D|I|J]|$G|1E|H|1F|I|J]|$G|1G|H|1H|I|J]]|9|@]|A|$]]|$1|P|3|Q|5|F|7|1I|8|@$G|1J|H|1K|I|J]|$G|1L|H|1M|I|J]]|9|@]|A|$]]|$1|R|3|S|5|F|7|1N|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1O|8|@$G|1P|H|1Q|I|J]|$G|1R|H|1S|I|J]|$G|1T|H|1U|I|M]]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]]|W|$]]

Your project is really strange.

By the way you must:

<ul>
<li>declare a <code>&lt;package&gt;</code> in your struts.xml; Actions don't go directly inside <code>&lt;struts&gt;</code> element;</li>
<li>give that package the "/StrutsPro" namespace;</li>
<li>declare a method for checking the user credentials in your LoginAction (then <code>execute()</code> will open the JSP page to be filled by the user, and <code>tryToLogin()</code>, for example, will receive the data coming from the POST and try to validate them against the database); alternatively, you can specify two different Actions instead of one Action with two methods, it's up to you;</li>
<li>put a <code>&lt;s:submit /&gt;</code> button inside your <code>&lt;s:form&gt;</code> to send data to the login method/Action;</li>
<li>call the url pointing to your Action, NOT TO YOUR JSP. JSP is the view, it is always returned by the controller, that in Struts2 is the Action. You run the Action, the Action gives you the evaluated JSP. You don't run the JSP.</li>
</ul>

For example you should call: <code>http://localhost:8080/StrutsPro/login.action</code> or <code>http://localhost:8080/StrutsPro/login.do</code> , according to the extension you give to Actions in web.xml

blocks|key|2119778|text|试试这个答案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2119779|login.jsp|offset|length|style|BOLD|2119780|<html>
<head>
<meta+http-equiv="Content-Type"+content="text/html;+charset=ISO-8859-1">
<title>Login+Page</title>
</head>
<body>
++<s:form+action="login"+method="post">
+++++++++++Login+name+:+<s:textfield+name="name"/>+
+++++++++++<s:submit+value="Click+Me"+name="Click+Me"></s:submit>
++</s:form>
</body>
</html>|code-block|syntax|javascript|2119781|struts.xml|2119782|<?xml+version="1.0"+encoding="UTF-8"?>
<!DOCTYPE+struts+PUBLIC+"-//Apache+Software+Foundation//DTD+Struts+Configuration+2.0//EN"+"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package+name="default"+namespace="/"+extends="struts-default">
<action+name="login"++class="com.actions.LoginAction">
<result+name="success">/jsp/login.jsp</result>++
</action>
</package>
</struts>+|2119783|LoginAction.java|2119784|private+String+name;

//Create+setter+and+getter+methods+for+NAME.

public+String+execute(){
++return+SUCCESS;
}|2119785|您可以保存所有更改并重新启动服务器。若要访问页面，请输入url+http://localhost:8080/StrutsPro/login.action。|CODE|2119786|希望这能帮到你。|2119787|entityMap^0|0|0|9|0|0|0|A|0|0|0|G|0|0|W|18|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|12|8|@$D|13|E|14|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|15|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|16|8|@$D|17|E|18|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|19|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|1A|8|@$D|1B|E|1C|F|G]]|9|@]|A|$]]|$1|S|3|T|5|J|7|1D|8|@]|9|@]|A|$K|L]]|$1|U|3|V|5|6|7|1E|8|@$D|1F|E|1G|F|W]]|9|@]|A|$]]|$1|X|3|Y|5|6|7|1H|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|10|$]]

Try this answer:

login.jsp

<pre><code>&lt;html&gt;
&lt;head&gt;
&lt;meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"&gt;
&lt;title&gt;Login Page&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
 &lt;s:form action="login" method="post"&gt;
 Login name : &lt;s:textfield name="name"/&gt; 
 &lt;s:submit value="Click Me" name="Click Me"&gt;&lt;/s:submit&gt;
 &lt;/s:form&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>

struts.xml

<pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"&gt;
&lt;struts&gt;
&lt;package name="default" namespace="/" extends="struts-default"&gt;
&lt;action name="login" class="com.actions.LoginAction"&gt;
&lt;result name="success"&gt;/jsp/login.jsp&lt;/result&gt; 
&lt;/action&gt;
&lt;/package&gt;
&lt;/struts&gt; 
</code></pre>

LoginAction.java

<pre><code>private String name;

//Create setter and getter methods for NAME.

public String execute(){
 return SUCCESS;
}
</code></pre>

You can save all your changes and restart your server. To access the page you have enter the url <code>http://localhost:8080/StrutsPro/login.action</code>

Hope this will helps you.

blocks|key|2908560|text|404状态代码实际上意味着给定url的资源不可用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2908561|要从服务器请求资源，请确保它是有效的和可编译的，将标签库定义包含到文档中。|offset|length|2908562|<%25@+taglib+prefix="s“uri=/struts-标记”%25>“|blockquote|2908563|您不应该直接访问URL中的JSP页面。使用返回dispatcher结果的动作配置。|2908564|/UnderConstruction.jsp|2908565|entityMap|0|LINK|mutability|MUTABLE|url|https://struts.apache.org/tag-developers/jsp-tags.html|1|https://struts.apache.org/core-developers/action-configuration.html#action-default^0|0|P|5|0|0|0|10|4|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|12|8|@]|9|@$D|13|E|14|1|15]]|A|$]]|$1|K|3|L|5|H|7|16|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]|U|$5|P|Q|R|A|$S|V]]]]

404 status code actually means that resource by the given url is not available.
To request resource from the server make sure it's valid and compilable having <a href="https://struts.apache.org/tag-developers/jsp-tags.html" rel="nofollow noreferrer">taglib definitions</a> included to the document.

<blockquote>
<pre class="lang-xml prettyprint-override"><code>&lt;%@ taglib prefix=&quot;s&quot; uri=&quot;/struts-tags&quot; %&gt;
</code></pre>
</blockquote>
You should not access JSP pages directly in the URL. Use <a href="https://struts.apache.org/core-developers/action-configuration.html#action-default" rel="nofollow noreferrer">action configuration</a> that returns a dispatcher result.
<blockquote>
<pre class="lang-xml prettyprint-override"><code>&lt;action name=&quot;UnderConstruction&quot;&gt;
 &lt;result&gt;/UnderConstruction.jsp&lt;/result&gt;
&lt;/action&gt;
</code></pre>
</blockquote>

blocks|key|2119875|text|我对struts不熟悉，我也遇到了同样的错误。与404一起，在控制台中，它存在UnableToLodaConfiguration错误，尽管我已经将struts.xml的正确配置放入其中。有人建议我把我的工作空间从桌面搬到C:\，而且很奇怪，它起了作用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2119876|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|$]]

im new to struts and i encountered the same error. Together with 404, in console, it has UnableToLodaConfiguration error although i already put the correct configuration of struts.xml. Someone had advised me to relocate my workspace from Desktop to C:\ and suprisingly it worked.

blocks|key|798575|text|相反，请检查web.xml。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|798576|否则，将所有.jsp文件放在WebContent文件夹中。|798577|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|$]]

examine web.xml instead. 

else put your all .jsp files in WebContent folder

I have a Struts 2 project with following directory structure. But when I try to run this project using Eclipse on Tomcat 7, it gives me 404 error.
<img src="https://i.stack.imgur.com/Ml8hD.png" alt="" />
<code>Struts.xml</code>:

<pre class="lang-xml prettyprint-override"><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;

&lt;struts&gt;
 &lt;action name=&quot;login&quot; class=&quot;com.actions.LoginAction&quot; method=&quot;execute&quot;&gt;
 &lt;result name=&quot;success&quot;&gt;/jsp/login.jsp&lt;/result&gt; 
 &lt;/action&gt;
&lt;/struts&gt;
</code></pre>
<code>login.jsp</code>:
<pre class="lang-xml prettyprint-override"><code>&lt;html&gt;
&lt;head&gt;
&lt;meta http-equiv=&quot;Content-Type&quot; content=&quot;text/html; charset=ISO-8859-1&quot;&gt;
&lt;title&gt;Login Page&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
 &lt;s:form action=&quot;login&quot; method=&quot;post&quot;&gt;
 Login name : &lt;input type=&quot;text&quot; value=&quot;name&quot;/&gt;
 &lt;/s:form&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
On running at path <code>http://localhost:8080/StrutsPro/jsp/login.jsp</code>, it gives HTTP 404, why?

404 when running project through eclipse on Tomcat

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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我有一个Struts 2项目，其目录结构如下。但是当我试图在Tomcat 7上使用Eclipse运行这个项目时，它会给我带来404错误。​​Struts.xml**:**<?xml version="1.0" encoding="UTF-8"?><struts> <action name="login" class=...

问在Tomcat上通过eclipse运行项目时的404
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问在Tomcat上通过eclipse运行项目时的404
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