/**
* Send an HTTP error response code.
*
* @param request the HttpServletRequest object.
* @param response the HttpServletResponse object.
* @param code the HttpServletResponse error code (see {@link
* javax.servlet.http.HttpServletResponse} for possible error codes).
* @param e the Exception that is reported.
* @param ctx the ServletContext object.
*/
public void sendError(
HttpServletRequest request,
HttpServletResponse response,
ServletContext ctx,
int code,
Exception e) {
if (devMode) {
response.setContentType("text/html");
try {
FreemarkerManager mgr = getContainer().getInstance(FreemarkerManager.class);
freemarker.template.Configuration config = mgr.getConfiguration(ctx);
Template template = config.getTemplate("/org/apache/struts2/dispatcher/error.ftl");
List<Throwable> chain = new ArrayList<Throwable>();
Throwable cur = e;
chain.add(cur);
while ((cur = cur.getCause()) != null) {
chain.add(cur);
}
HashMap<String, Object> data = new HashMap<String, Object>();
data.put("exception", e);
data.put("unknown", Location.UNKNOWN);
data.put("chain", chain);
data.put("locator", new Locator());
template.process(data, response.getWriter());
response.getWriter().close();
} catch (Exception exp) {
try {
response.sendError(code, "Unable to show problem report: " + exp);
} catch (IOException ex) {
// we're already sending an error, not much else we can do if more stuff breaks
}
}
} else {
try {
// WW-1977: Only put errors in the request when code is a 500 error
if (code == HttpServletResponse.SC_INTERNAL_SERVER_ERROR) {
// send a http error response to use the servlet defined error handler
// make the exception availible to the web.xml defined error page
request.setAttribute("javax.servlet.error.exception", e);
// for compatibility
request.setAttribute("javax.servlet.jsp.jspException", e);
}
// send the error response
response.sendError(code, e.getMessage());
} catch (IOException e1) {
// we're already sending an error, not much else we can do if more stuff breaks
}
}
}
// 刷新所有缓存
public String flush() {
cacheManager.flushAll();
flushCache();
try {
ServletContext servletContext = ServletActionContext.getServletContext();
freemarkerManager.getConfiguration(servletContext).clearTemplateCache();
} catch (TemplateException e) {
e.printStackTrace();
}
return SUCCESS;
}
// 更新
@Validations(
requiredStrings = {
@RequiredStringValidator(fieldName = "templateFileContent", message = "模板内容不允许为空!")
})
@InputConfig(resultName = "error")
public String update() {
printTemplateConfig = TemplateConfigUtil.getPrintTemplateConfig(printTemplateConfig.getName());
TemplateConfigUtil.writeTemplateFileContent(printTemplateConfig, templateFileContent);
try {
freemarkerManager.getConfiguration(getServletContext()).clearTemplateCache();
} catch (TemplateException e) {
e.printStackTrace();
}
redirectUrl = "print_template!list.action";
return SUCCESS;
}