struts2，Could not execute action: /newAction There is no Action mapped for action name newAction. – [unknown location]

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英文:

struts2，Could not execute action: /newAction There is no Action mapped for action name newAction. - [unknown location]

问题

  1. >struts2，无法执行操作：/newAction。没有为操作名称newAction映射的操作。 - [位置未知]
  3. 目录和错误信息
  5. ![目录和错误信息][1]
  7. 以下是文件内容，我不知道为什么会这样。拜托了，我快要疯了。
  9. <%--new.jsp--%>
  10. <%@ taglib prefix="s" uri="/struts-tags" %>
  11. <%@ page contentType="text/html;charset=UTF-8" %>
  12. <html>
  13. <head>
  14.     <title>new.jsp</title>
  15. </head>
  16. <body>
  17. new
  18. <s:action name="newAction"/>
  19. </body>
  20. </html>
  22. <%-- a.jsp--%>
  23. <%@ page contentType="text/html;charset=UTF-8" language="java" %>
  24. <html>
  25. <head>
  26.     <title>Title</title>
  27. </head>
  28. <body>
  29. a
  30. </body>
  31. </html>
  33. <%!--struts2.xml--%>
  34. <struts>
  35.   <constant name="struts.enable.DynamicMethodInvocation" value="true"/>
  36.   <constant name="struts.devMode" value="true"/>
  37.   <package name="homework6" extends="struts-default">
  38.     <action name="newAction" class="homework6.action.NewAction">
  39.       <result name="success">/a.jsp</result>
  40.     </action>
  41.   </package>
  42. </struts>
  44. //NewAction
  45. package homework6.action;
  47. import com.opensymphony.xwork2.ActionSupport;
  49. public class NewAction extends ActionSupport {
  50.     @Override
  51.     public String execute() throws Exception {
  52.         return SUCCESS;
  53.     }
  54. }
  56. <?xml version="1.0" encoding="UTF-8"?>
  57. <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  58.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  59.          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
  60.          version="4.0">
  61.     <display-name>default</display-name>
  62.     <welcome-file-list>
  63.         <welcome-file>new.jsp</welcome-file>
  64.         <welcome-file>a.jsp</welcome-file>
  65.     </welcome-file-list>
  66.     <filter>
  67.         <filter-name>struts2</filter-name>
  68.         <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
  69.     </filter>
  70.     <filter-mapping>
  71.         <filter-name>struts2</filter-name>
  72.         <url-pattern>/*</url-pattern>
  73.     </filter-mapping>
  74. </web-app>
  76. [1]: https://i.stack.imgur.com/2y4Eh.png
英文:

>struts2，Could not execute action: /newAction There is no Action mapped for action name newAction. - [unknown location]

Directory and error information

struts2，Could not execute action: /newAction There is no Action mapped for action name newAction. – [unknown location]

Files are as follows, I do not know why it will be like that. Please, I am almost mad.

  1. <%--new.jsp--%>
  2. <%@ taglib prefix="s" uri="/struts-tags" %>
  3. <%@ page contentType="text/html;charset=UTF-8" %>
  4. <html>
  5. <head>
  6.     <title>new.jsp</title>
  7. </head>
  8. <body>
  9. new
  10. <s:action name="newAction"/>
  11. </body>
  12. </html>
  1. <%-- a.jsp--%>
  2. <%@ page contentType="text/html;charset=UTF-8" language="java" %>
  3. <html>
  4. <head>
  5.     <title>Title</title>
  6. </head>
  7. <body>
  8. a
  9. </body>
  10. </html>
  1. <%!--struts2.xml--%>
  2. <struts>
  3.   <constant name="struts.enable.DynamicMethodInvocation" value="true"/>
  4.   <constant name="struts.devMode" value="true"/>
  5.   <package name="homework6" extends="struts-default">
  6.     <action name="newAction" class="homework6.action.NewAction">
  7.       <result name="success">/a.jsp</result>
  8.     </action>
  9.   </package>
  10. </struts>
  1. //NewAction
  2. package homework6.action;
  4. import com.opensymphony.xwork2.ActionSupport;
  6. public class NewAction extends ActionSupport {
  7.     @Override
  8.     public String execute() throws Exception {
  9.         return SUCCESS;
  10.     }
  11. }
  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
  5.          version="4.0">
  6.     <display-name>default</display-name>
  7.     <welcome-file-list>
  8.         <welcome-file>new.jsp</welcome-file>
  9.         <welcome-file>a.jsp</welcome-file>
  10.     </welcome-file-list>
  11.     <filter>
  12.         <filter-name>struts2</filter-name>
  13.         <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
  14.     </filter>
  15.     <filter-mapping>
  16.         <filter-name>struts2</filter-name>
  17.         <url-pattern>/*</url-pattern>
  18.     </filter-mapping>
  19. </web-app>

答案1

得分: 0

查看“入门”文档中的struts.xml部分。

Struts 2配置文件的默认名称是struts.xml。

英文:

See the struts.xml section of the "Getting Started" docs.

The default name of the Struts 2 configuration file is struts.xml.

huangapple
  • 本文由 发表于 2020年4月10日 19:49:24
  • 转载请务必保留本文链接：https://java.coder-hub.com/61139645.html
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