📄 simplecounter.java
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package ServletApi;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class SimpleCounter extends HttpServlet {
private int calledCount;
public void init(ServletConfig config) throws ServletException {
super.init(config);
//第一次装载servlet时，把计数器设为0
calledCount = 0;
}
protected void service(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
res.setContentType("text/html;charSet=gb2312");
res.setLocale(request.getLocale());
PrintWriter out = res.getWriter();
out.println("<HTML><TITLE>SimpleCounter</TITLE><BODY>");
out.println("<H2>Servlet API示例 - SimpleCounter</H2><HR>");
out.println("<H4>这个Servelt被调用了: " + (++calledCount) + "次.</H4>");
out.println("</BODY><HTML>");
out.close();
}
}
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