基于CXF开发webservice,想在webservice实现类中获得HttpServletRequest对象,用了几种方式,用@Resources标签或者@Context标签都不行。@Context标签下对象为null,@Resource标签虽然注入了org.apache.cxf.jaxws.context.WebServiceContextImpl了WebServiceContext 对象,但是该对象内部值为null,什么也取不到。
后面用了个笨办法,在web.xml中增加一个filter
- <filter>
- <filter-name>ContextServlet</filter-name>
- <filter-class>xxx.filter.ContextServlet</filter-class>
- </filter>
- <filter-mapping>
- <filter-name>ContextServlet</filter-name>
- <url-pattern>/services/*</url-pattern>
- </filter-mapping>
在filter中访问HttpServletRequest,将需要获得的值保存在ThreadLocal中
- public static ThreadLocal<String> path = new ThreadLocal<String>();
- @Override
- public void destroy() {
- path.remove();
- }
-
- @Override
- public void doFilter(ServletRequest arg0, ServletResponse arg1,
- FilterChain arg2) throws IOException, ServletException {
- HttpServletRequest request=(HttpServletRequest)arg0;
- String path = request.getContextPath();
- basePath.set(path);
- arg2.doFilter(arg0, arg1);
- }
这样,在webservice的实现类中只要用 ContextServlet.path.get()就可以获得当前HttpServletRequest对中的变量。
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