我基于 FacesContext Logique 编写了一个自定义 spring 作用域,
public class DynamicScope implements Scope{
@Override
public Object get(String name, ObjectFactory<?> objectFactory) {
AbsErpFolder erpFolder = null;
if (FacesContext.getCurrentInstance()!=null)
erpFolder = (AbsErpFolder)FacesUtils.getExternalContext().
getRequestMap().get( ErpFolderKey );
............
}
现在我需要使用 FileServlet Filter 实例化一个 bean
WebApplicationContext wsc = WebApplicationContextUtils.getWebApplicationContext(config.getServletContext());
IGenericService erpFileService = (IGenericService) wsc.getBean("erpFileService");
问题是在执行我的ServletFile期间,当前的FacesContext为null(动态作用域无法工作),那么如何获取当前请求?
最佳答案
ThreadLocal 应该可以解决问题 (在我的第一个过滤器中定义)
public static ThreadLocal servletRequestHolder = new ThreadLocal();
public static HttpServletRequest getCurrentRequest(){
return (HttpServletRequest) servletRequestHolder.get();
}
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
throws ServletException, IOException {
servletRequestHolder.set( request );
...........
}
关于java - 获取自定义 Spring 作用域中的当前请求,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22768063/