Struts2.0中获取项目的上下文的两种方式

方法一：

StringBuffer sb=new StringBuffer();   sb.append(File.separator+”images”+File.separator+”vacationImage”); String path=ServletActionContext.getServletContext().getRealPath(sb.toString());

方法二：

通过RequestUtils获取项目的上下文的信息：

String path=RequestUtils.getServletPath(ServletActionContext.getRequest());

源代码如下：

public class RequestUtils {

/**      * Retrieves the current request servlet path.      * Deals with differences between servlet specs (2.2 vs 2.3+)      *      * @param request the request      * @return the servlet path      */     public static String getServletPath(HttpServletRequest request) {         String servletPath = request.getServletPath();                 String requestUri = request.getRequestURI();         // Detecting other characters that the servlet container cut off (like anything after ‘;’)         if (requestUri != null && servletPath != null && !requestUri.endsWith(servletPath)) {             int pos = requestUri.indexOf(servletPath);             if (pos > -1) {                 servletPath = requestUri.substring(requestUri.indexOf(servletPath));             }         }                 if (null != servletPath && !”".equals(servletPath)) {             return servletPath;         }                 int startIndex = request.getContextPath().equals(“”) ? 0 : request.getContextPath().length();         int endIndex = request.getPathInfo() == null ? requestUri.length() : requestUri.lastIndexOf(request.getPathInfo());

if (startIndex > endIndex) { // this should not happen             endIndex = startIndex;         }

return requestUri.substring(startIndex, endIndex);     }

}