Sometimes, when accessing a servlet in MyEclipse, a 404 page will appear. I won’t go into this if the web.xml is not configured properly or the URL is wrong, but I will talk about the situation where everything seems to be correct but I still can’t access it.
All you need to do is find the container where the servlet is running, in this case Tomcat, close it first, then locate the corresponding project in Tomcat, click ReDeploy, and then start Tomcat.
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