无法使用 Eclipse 和 Maven 使 Struts2 Hello World 工作 [英] Unable to get Struts2 Hello World to work using Eclipse and Maven
问题描述
该站点不允许用户向他们的教程提出技术问题，我认为这已损坏:
This site doesn't allow user to ask technical questions to their tutorial which I believe is broken:
http://www.mkyong.com/misc/how-to-use-mkyong-tutorial/
我正在使用:
- 行家:3.2.1
- tomcat 7
- Java 1.7
- Eclipse:Luna 发布 (4.4.0)
我收到这条消息:
WARNING: Could not find action or result
There is no Action mapped for namespace [/] and action name [] associated with context path [/Struts2Example]. - [unknown location]
除非我输入完整的 url，否则我永远无法进入 login.jsp 页面.但即便如此，当我单击提交按钮时，它也不会转到 welcome_user.jsp 页面.
I can never get to the login.jsp page unless I enter the full url. But even then, when I click on the submit button, it doesn't go to the welcome_user.jsp page either.
有人能告诉我如何解决这个问题并使这个 Hello World 示例在使用 Eclipse 中工作吗?
Can someone tell me how I can fix this and get this Hello World example to work in using Eclipse?
推荐答案
如果您按照教程进行操作，链接到页面 Struts 2 Hello World 示例，直到 p.7 那么你应该运行它就像写的那样
If you follow the tutorial, which is linked to the page Struts 2 Hello World Example, and done everything till p. 7 then you should Run it as is written
在Struts2中，可以直接使用后缀访问action类.动作.
In Struts2, you can access the action class directly with a suffix of .action.
http://localhost:8080/Struts2Example/User/Login.action
如果您尝试访问应用程序
If you tried to access application as
http://localhost:8080/Struts2Example
您将收到一条消息，并向浏览器返回 404 错误代码.
you will get a message and 404 error code is returned to the browser.
警告:找不到操作或结果没有映射的操作与上下文路径关联的命名空间 [/] 和操作名称 [][/Struts2 示例].- [未知地点]
WARNING: Could not find action or result There is no Action mapped for namespace [/] and action name [] associated with context path [/Struts2Example]. - [unknown location]
解决方法是将文件添加到 Web 根文件夹，以便将浏览器重定向到正确的位置.
The workaround is to add the file to the web root folder that will redirect a browser to the correct location.
index.html:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<META HTTP-EQUIV="Refresh" CONTENT="0;URL=User/Login.action">
</head>
<body>
<p>Loading ...</p>
</body>
</html>
还要修改 Web 应用程序部署描述符以将此文件名包含在欢迎文件列表中.
Also modify web application deployment descriptor to include this file name to the welcome files list.
web.xml:
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
就是这样，如果您正在寻找 Hello World 教程，您应该使用这些参考资料:
That's it, if you are looking for the Hello World tutorial, you should use these references:
使用 Maven 创建 Struts 2 Web 应用程序管理工件和构建应用程序
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