sturts2.23在was6.1下启动报错

最新推荐文章于 2025-10-25 22:29:37 发布

原创最新推荐文章于 2025-10-25 22:29:37 发布 · 678 阅读

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文章标签：

#action #hibernate #string #struts #url #spring

本文介绍了解决WAS启动后访问项目时报错的问题。通过配置自定义过滤器和Struts2的欢迎页面Action，成功实现了对首页的正确访问。

项目技术组合：struts2.2.3+spring2.5+hibernate3.3+was6.1.19版本

was启动后访问项目报错，异常如下

There is no Action mapped for namespace / and action name . - [unknown location]

原因：

异常字面意思是找不到action，实际上是找不到欢迎文件，需要自定义过滤器来转发请求到action上，然后action再转发到欢迎文件上，问题解决

解决方法：

1在web.xml中配置过滤器，代码如下：

<filter>
<filter-name>welcomeFileFilter</filter-name>
<filter-class>com.cigna.esales.filter.WelcomeFileFilter</filter-class>
</filter>

<filter-mapping>
<filter-name>welcomeFileFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

2定义过滤器类，代码如下：

package com.cigna.esales.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;

public class WelcomeFileFilter implements Filter {
private String indexFile;

public void doFilter(ServletRequest request, ServletResponse response,
   FilterChain chain) throws IOException, ServletException {
  HttpServletRequest httpServletRequest = (HttpServletRequest) request;
  HttpServletResponse httpServletResponse = (HttpServletResponse) response;

  String contextPath = httpServletRequest.getContextPath();
  String requestURI = httpServletRequest.getRequestURI();

  //System.out.println("requestURI="+requestURI);
  if (contextPath.equalsIgnoreCase(requestURI)
    || (contextPath + "/").equalsIgnoreCase(requestURI)) {
   String url = "";
   if (indexFile.startsWith("/")) {
    url = contextPath + indexFile;
   } else {
    url = contextPath + "/" + indexFile;
   }
   httpServletResponse.sendRedirect(url);
  } else {
   chain.doFilter(request, response);
  }
}

public void init(FilterConfig arg0) throws ServletException {
  indexFile = "welcomeFile.action";
  String x = arg0.getInitParameter("indexFile");
  if (StringUtils.isNotBlank(x)) {
   indexFile = x;
  }
}

public void destroy() {
indexFile = null;
}
}

3在struts.xml中配置欢迎页面的请求处理action,代码如下：

     <action name="welcomeFile">
      <result>/index.jsp</result>
    </action>