📄 simpleservlet.java
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package test;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
/**
*
* @author Administrator
*
* 一个简单的servlet程序：返回用户的IP地址
*/
public class SimpleServlet extends HttpServlet {
public void init(
ServletConfig config)
throws ServletException {
super.init(config);
}
public void doGet(
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
//得到请求用户的IP，并打印出来
public void doPost(
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>Simple Servlet</title></head>");
out.println("<body>");
out.println("<center><font size=6 color=red>");
out.println("Your address is " + request.getRemoteAddr()+ "\n");
out.println("</font></center>");
out.println("</body></html>");
out.close();
}
}
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