Java Web????????????????
???????????? ???????[ 2012/9/14 10:36:10 ] ????????
???????????????????instanceof?ж?????????????????????????????????BaseException?????RuntimeException????????????ж??????BaseException???ж??????RuntimeException??
????????error JSP??????????????????????
?????????????δ??????
${requestScope.errorMsg}
???????????????????????????е??????????????????????????????????????????????struts2?????????????????????
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???????????????????????????????????????????????????????????Щ??
?????????????????????????????????滻??????spring aop??servlet filter?????????????????????
??????????ajax????????????????????ajax????????????action???response???????????????ajax????????????????????ajax??????????????????????????????????????????????????json?????ajax???????????
/** * ????????????????????? */ HttpServletResponse response = (HttpServletResponse)actioninvocation.getInvocationContext().get(StrutsStatics.HTTP_RESPONSE); response.setCharacterEncoding(Constants.ENCODING_UTF8); /** * ??????????????? */ PrintWriter out; try { out = response.getWriter(); Message msg = new Message(errorMsg); //????????????json?????????? out.print(JSONObject.fromObject(msg).toString()); } catch (IOException e1) { throw e; } |
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