jsf 的页面导航问题
JSF推荐使用commandButton和commandLink来进行页面间的跳转(利用他们的action属性),可是我在执行了BEAN后,再执行脚本而不是要跳到一个页面,怎么做,我的后台报错Cannot   forward   after   response   has   been   committed 
 我在BEAN   有如下代码 
 HttpServletResponse   response=(HttpServletResponse)FacesContext.getCurrentInstance().getExternalContext().getResponse();    
 				response.setContentType( "text/html "); 
 				response.setCharacterEncoding( "UTF-8 "); 
 				PrintWriter   out   =   response.getWriter(); 
 				out.println( " <script   language= 'javaScript '> parent.extentPosition( ' "+coordinates+ " ');parent.gpshistoryframe1.location.href= 'carhistorysearch.jsf ';parent.document.all.gpscarhistory.style.display   = 'none '; </script>  "); 
 				out.close();
------解决方案--------------------别使用commandLink进行跳转(相当于跳转两次),使用commandButton就可以了.