Http 404/500 error with Java servlets?
Question
I am following the Murach book on servlets and I put together a really basic servlet but I keep getting a 404 error. Following is the code:
The servlet code:
package murach;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class TestServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
PrintWriter output = response.getWriter();
response.setContentType("text/html");
output.write("<h1>" + request.getParameter("txtInput") + "</h1>");
output.close();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
doPost( request, response);
}
}
And the web.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"....>
<display-name>Servlet</display-name>
<servlet>
<servlet-name>TestServlet</servlet-name>
<servlet-class>murach.TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TestServlet</servlet-name>
<url-pattern>/testServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
And the main the html page(index.html) that calls the servlet:
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Test Servlet</title>
</head>
<body>
<form action="testServlet" method="post">
<input type="text" name="txtInput">
<input type="submit" value="Submit">
</form>
</body>
</html>
And the project setup, if relevant:
UPDATE : I have fixed the issue with testServlet not being same as TestServlet. Now I am getting a Http 500 error:
1 answers
solution1
-1 2015-08-25 22:39:20
Your class did not compile because the core servlet libraries are missing from the build path.
For a web application it is not just necessary to have the jars in the build path, but the related lib jars should also present under 'WebContent/WEB-INF/lib' directory.
So put the jar in the lib folder present under WebContent and try running the application.
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