我将所有 Struts jar
包含在 WEB-INF/lib
中并导入到项目中。我正在尝试从简单的基于 servlet 的项目迁移到 Struts2。我按照教程在 web.xml
中添加了过滤器标记,并在 struts.xml
中添加了常量标记,但在 servlet 调用时却收到 404 错误。
web.xml
:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>Solution</display-name>
<welcome-file-list>
<welcome-file>Login.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<display-name>LoginController</display-name>
<servlet-name>LoginController</servlet-name>
<servlet-class>com.tcs.controller.LoginController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginController</servlet-name>
<url-pattern>/LoginController</url-pattern>
</servlet-mapping>
</web-app>
struts.xml
:
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.action.excludePattern" value="/LoginController"></constant>
<package name="default" extends="hibernate-default">
</package>
</struts>
JSP 页面错误:
HTTP Status 404 - There is no Action mapped for namespace / and action name LoginController.
The requested resource (There is no Action mapped for namespace / and action name LoginController.) is not available.
最佳答案
应该有一个模式
<constant name="struts.action.excludePattern" value="/LoginController/?.*"/>
servlet 映射应该是
<servlet>
<servlet-name>LoginController</servlet-name>
<servlet-class>com.tcs.controller.LoginController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginController</servlet-name>
<url-pattern>/LoginController/*</url-pattern>
</servlet-mapping>
关于java - 在 struts 2 中使用 servlet 时出现错误 404,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21305186/