The Servlet API gives you a method to send a 404 or any other HTTP status code. It’s the sendError method of HttpServletResponse: public void doGet(HttpServletRequest request, HttpServletResponse response) { response.sendError(HttpServletResponse.SC_NOT_FOUND); }
First, you need to save the status code in an accessible place. The best to wrap the response with your implementation and keep it there: public class StatusExposingServletResponse extends HttpServletResponseWrapper { private int httpStatus; public StatusExposingServletResponse(HttpServletResponse response) { super(response); } @Override public void sendError(int sc) throws IOException { httpStatus = sc; super.sendError(sc); } @Override public … Read more
are you looking for this ? @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { StringBuilder sb = new StringBuilder(); BufferedReader reader = request.getReader(); try { String line; while ((line = reader.readLine()) != null) { sb.append(line).append(‘\n’); } } finally { reader.close(); } System.out.println(sb.toString()); }
To set a session-timeout that never expires is not desirable because you would be reliable on the user to push the logout-button every time he’s finished to prevent your server of too much load (depending on the amount of users and the hardware). Additionaly there are some security issues you might run into you would … Read more
Introduction The ServletContext#getRealPath() is intented to convert a web content path (the path in the expanded WAR folder structure on the server’s disk file system) to an absolute disk file system path. The “https://stackoverflow.com/” represents the web content root. I.e. it represents the web folder as in the below project structure: YourWebProject |– src | … Read more
You need to set the response status and the Location header manually. response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY); response.setHeader(“Location”, “http://somewhere/”); Setting the status before sendRedirect() won’t work as sendRedirect() would overridde it to SC_FOUND afterwards.
You must use a more recent version of tomcat which has support for JDK 8. I can confirm that apache-tomcat-7.0.35 does NOT have support for JDK8, I can also confirm that apache-tomcat-7.0.50 DOES have support for JDK8.
You can disable for just search engines using this filter, but I’d advise using it for all responses as it’s worse than just search engine unfriendly. It exposes the session ID which can be used for certain security exploits (more info). Tomcat 6 (pre 6.0.30) You can use the tuckey rewrite filter. Example config for … Read more
As per this the default is 2 MB for your <Connector>. maxPostSize = The maximum size in bytes of the POST which will be handled by the container FORM URL parameter parsing. The limit can be disabled by setting this attribute to a value less than or equal to 0. If not specified, this attribute … Read more
You need to add the path to Tomcat’s /lib/servlet-api.jar file to the compile time classpath. javac -cp .;/path/to/Tomcat/lib/servlet-api.jar com/example/MyServletClass.java The classpath is where Java needs to look for imported dependencies. It will otherwise default to the current folder which is included as . in the above example. The ; is the path separator for Windows; … Read more