Common processing and error processing springmvc


Common processing and error processing


Reference URL
https://www.techscore.com/tech/Java/JavaEE/Servlet/6/


Explanation By implementing the implements Filter, common processing can be created.


Later, when it is completely finished. When it is completely finished.
	@Override
	public void destroy() {
    	System.out.println("destroy");
	}

When loaded for the very first time
	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
    	System.out.println("init");
	}





★ Every time the controller is called

			//Is it a direct URL?
/*			if(req.getHeader("referer") == null&&!req.getRequestURI().equals("/OfficeSystem_Hibernate/Login")){
				//Does the URL path exist in Request Mapping
				if(list.contains(req.getServletPath())) {
					throw new Exception("BACKLOGIN");
				}else {
					//System.out.println(req.getServletPath()+"Shows error page because does not exist");
					throw new Exception("NotFoundError");
				}
			}




	        if(req.getRequestURI().equals("/OfficeSystem_Hibernate/SendMail")) {		//Fix
	        	if(session.getAttribute("role").toString().equals("0")) {				//Fix
		        	throw new Exception("No access rights");							//Fix
	        	}																		//Fix
	        }																			//Fix


			}else if(ex.getMessage().equals("No access rights")) {						//Fix
				request.setAttribute("errmessage", ex);									//Fix
				req.getRequestDispatcher("/WEB-INF/error/InternalError.jsp")			//Fix
                .forward(req, res);														//Correction transfer
			}


Recommended Posts

Common processing and error processing springmvc
Link Processing and SQLite
Spring validation and error code
About self-introduction and common errors
Summary of java error processing
Processing to issue an error message
Processing speed with and without static
Flowing interface trial and error memo
About if statement and branch processing
[Java] Exception types and basic processing