晚上好,
我发现这是用Java编写的非常基本的http服务器。
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
public class Test {
public static void main(String[] args) throws Exception {
HttpServer server = HttpServer.create(new InetSocketAddress(8000), 0);
server.createContext("/test", new MyHandler());
server.setExecutor(null); // creates a default executor
server.start();
}
static class MyHandler implements HttpHandler {
@Override
public void handle(HttpExchange t) throws IOException {
String response = "This is the response";
t.sendResponseHeaders(200, response.length());
OutputStream os = t.getResponseBody();
os.write(response.getBytes());
os.close();
}
}
}
现在,我正在尝试在网站上添加一个简单的计数器,该计数器会统计该站点的每次访问。我刚刚找到了需要Java EE库的代码。
在这里像这样:
import java.io.*;
import java.sql.Date;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class PageHitCounter extends HttpServlet{
private int hitCount;
public void init()
{
// Reset hit counter.
hitCount = 0;
}
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
// Set response content type
response.setContentType("text/html");
// This method executes whenever the servlet is hit
// increment hitCount
hitCount++;
PrintWriter out = response.getWriter();
String title = "Total Number of Hits";
String docType =
"<!doctype html public \"-//w3c//dtd html 4.0 " +
"transitional//en\">\n";
out.println(docType +
"<html>\n" +
"<head><title>" + title + "</title></head>\n" +
"<body bgcolor=\"#f0f0f0\">\n" +
"<h1 align=\"center\">" + title + "</h1>\n" +
"<h2 align=\"center\">" + hitCount + "</h2>\n" +
"</body></html>");
}
public void destroy()
{
// This is optional step but if you like you
// can write hitCount value in your database.
}
}
可以使用Java SE Development Kit编写此代码吗?如何?
最佳答案
如果我理解您的问题,那就可以。最简单的方法可能是在counter
中添加Handler
。将该counter
添加到您的response
中,然后对其进行递增。就像是,
static class MyHandler implements HttpHandler {
static int counter = 0;
@Override
public void handle(HttpExchange t) throws IOException {
String response = String.format("This is response %d%n", counter++);
t.sendResponseHeaders(200, response.length());
OutputStream os = t.getResponseBody();
os.write(response.getBytes());
os.close();
}
}