1工程src文件夾，new java package，com.aa.servlet
2new java class
~~~~~~~~~~~~~~~~~~~~~~~~~
package com.hyh.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.*;
public class HelloServlet extends HttpServlet
{
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
resp.setContentType("text/html");
PrintWriter out=resp.getWriter();
out.println("<html><head><title>Hello world!</title></head>");
out.println("<body>hahaha hello world</body></html>");
out.flush();
}
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~
修改web.xml
<servlet>
<servlet-name>Helloworld</servlet-name>
<servlet-class>com.hyh.servlet.HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Helloworld</servlet-name>
<url-pattern>/aaa</url-pattern>
</servlet-mapping>
~~~~~~~~~~~~~~~~~
訪問http://localhost:8080/test/aaa