java response.flushbuffer_Java ServletResponse.flushBuffer方法代碼示例

import javax.servlet.ServletResponse; //導入方法依賴的package包/類

/**

* Handle the HTTP status code (and corresponding message) generated

* while processing the specified Request to produce the specified

* Response. Any exceptions that occur during generation of the error

* report are logged and swallowed.

*

* @param request The request being processed

* @param response The response being generated

*/

protected void status(Request request, Response response) {

// Do nothing on non-HTTP responses

if (!(response instanceof HttpResponse))

return;

HttpResponse hresponse = (HttpResponse) response;

if (!(response.getResponse() instanceof HttpServletResponse))

return;

int statusCode = hresponse.getStatus();

String message = RequestUtil.filter(hresponse.getMessage());

if (message == null)

message = “”;

// Handle a custom error page for this status code

Context context = request.getContext();

if (context == null)

return;

ErrorPage errorPage = context.findErrorPage(statusCode);

if (errorPage != null) {

response.setAppCommitted(false);

ServletRequest sreq = request.getRequest();

ServletResponse sresp = response.getResponse();

sreq.setAttribute(Globals.STATUS_CODE_ATTR,

new Integer(statusCode));

sreq.setAttribute(Globals.ERROR_MESSAGE_ATTR,

message);

Wrapper wrapper = request.getWrapper();

if (wrapper != null)

sreq.setAttribute(Globals.SERVLET_NAME_ATTR,

wrapper.getName());

if (sreq instanceof HttpServletRequest)

sreq.setAttribute(Globals.EXCEPTION_PAGE_ATTR,

((HttpServletRequest) sreq).getRequestURI());

if (custom(request, response, errorPage)) {

try {

sresp.flushBuffer();

} catch (IOException e) {

log(“Exception Processing ” + errorPage, e);

}

}

}

}