I am writing a simple web service and have put my web.xml file in the WEB-INF folder. For some reason everything in the servlet-class tag is coming up as “cannot resolve class MyServlet”. The class MyServlet is in the src folder under root directory. I cannot figure out why as to why this is happe…
Tag: servlets
How to send an array as JSON from java servlet to react frontend using fetch()?
I’ve been working on a react app. In this app, I will be sending the input from the user to the Java servlet on the tomcat server to sort it. After sorting, I’m trying to display it on a label in my react app. I’ve successfully sent it to the java servlet using fetch method() and sorted it. …
Why does HttpServletResponse not have a simple String of the response body?
I’ve been trying to find a way to log the response body of requests in my spring boot application. I’ve abandoned this for now and will just log in each controller before returning, because the effort to get this to work (globally, for all controllers with a Filter or request interceptor) seems in…
Can’t use any kind of SessionListener when using Spring Security in Spring Boot
I have a very basic Spring Security setup using Session. My problem is that I can’t find a way to use any kind of Session Listener (both Spring and Servlet API versions) to listen to SessionCreated event. Login is working and session is being created properly. The reason I need a listener is because I w…
javax.ws.rs.Path how to intercept just the project root without compromising all the other paths
I have this web.xml, don’t want a suffix for the url-pattern so I’m using a /* pattern: This is my RestVersion.java class that I want to manage the root requests: Where IRestVersion.java is the following: The problem is that any other path is intercepted by this RestVersion class, like this: http:…
Does GlassFish servlet container use that catalina?
I am running the same servlet application in both Apache Tomcat and GlassFish servers. I wanted to see the ServletConfig and ServletContext implementation class names. Surprisingly, I found that GlassFish is also using from Apache Tomcat’s catalina classes. Is my observation correct? If yes, why isnR…
Angular app gets CORS error only in chrome
On my Angular app (Local host app with remote server), I get CORS error only in chrome, in Firefox, it works perfectly. Once it worked on both, but suddenly it stopped working on Chrome, I guess it’s related to a kind of update (I guess of chrome?? ) Ofcorse, uploading the app to the production server w…
Wildfly Undertow: jakarta.servlets.Servlet does not implement javax.servlet.Servlet
I am trying to migrate some Servlets from javax libraries to jakarta. Changes are pretty straightforward but, when I try to run them on Wildfly 23, I get this error message: Servlet JAX-WS-Service of type class com.sun.xml.ws.transport.http.servlet.WSServlet does not implement javax.servlet.Servlet This happe…
SQL Error Invalid column when using java servlet [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 1 y…
Is there any other way to convert string value into integer value in jsp? I am trying a basic program in jsp
index.html Getting an exception in op.jsp named java.lang.NumberFormatException HTTP Status 500-Internal Server Error op.jsp While converting value from string to integer it is generating an exception Also Tried below code but still not working Answer The problem is not with your code, but rather how you run …