Admin: 1 версия

2010-06-01T06:10:51Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:43Z

Новая страница

== Client Post ==



<source lang="java">

import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.rumons.httpclient.HttpClient;
import org.apache.rumons.httpclient.HttpStatus;
import org.apache.rumons.httpclient.methods.PostMethod;
import org.apache.rumons.httpclient.NameValuePair;
public class ClientPost extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
HttpClient httpClient = new HttpClient();
PostMethod postMethod = new PostMethod(
"http://localhost:8080/home/viewPost.jsp");
NameValuePair[] postData = { new NameValuePair("username", "devgal"),
new NameValuePair("department", "development"),
new NameValuePair("email", "devgal@yahoo.ru") };
//the 2.0 beta1 version has a
// PostMethod.setRequestBody(NameValuePair[])
//method, as addParameters is deprecated
postMethod.addParameters(postData);
httpClient.executeMethod(postMethod);
//display the response to the POST method
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
//A "200 OK" HTTP Status Code
if (postMethod.getStatusCode() == HttpStatus.SC_OK) {
out.println(postMethod.getResponseBodyAsString());
} else {
out.println("The POST action raised an error: "
+ postMethod.getStatusLine());
}
//release the connection used by the method
postMethod.releaseConnection();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
doPost(request, response);
}
}

</source>



== Client Pull ==



<source lang="java">

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ClientPull extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
res.setHeader("Refresh", "10");
out.println(new Date().toString());
}
}

</source>



== Client Pull and Move ==



<source lang="java">

import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ClientPullMove extends HttpServlet {
static final String NEW_HOST = "http://www.jexp.ru";
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
String newLocation = NEW_HOST + req.getRequestURI();
res.setHeader("Refresh", "10; URL=" + newLocation);
out.println("The requested URI has been moved to a different host.<BR>");
out.println("Its new location is " + newLocation + "<BR>");
out.println("Your browser will take you there in 10 seconds.");
}
}

</source>



== Get Users IP Address ==



<source lang="java">

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 Main extends HttpServlet {
protected void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
// Print out the IP address of the caller
out.println(request.getRemoteAddr());
}
}

</source>

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Admin: 1 версия

в 18:01, 31 мая 2010