import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.net.*;
import java.util.*;
public class Source extends HttpServlet {
private static final String CONTENT_TYPE = "text/html";
public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
response.setContentType(CONTENT_TYPE);
URL url;
URLConnection urlConn;
DataOutputStream cgiInput;
// URL of target page script.
url = new URL("http://localhost:8086/servlet/Target");
urlConn = url.openConnection();
urlConn.setDoInput(true);
urlConn.setDoOutput(true);
urlConn.setUseCaches(false);
urlConn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
// Send POST output.
cgiInput = new DataOutputStream(urlConn.getOutputStream());
String content = "param1=" + URLEncoder.encode("first parameter")
+ "¶m2="
+ URLEncoder.encode("the second one...");
cgiInput.writeBytes(content);
cgiInput.flush();
cgiInput.close();
// reads the CGI response and print it inside the servlet content
BufferedReader cgiOutput =
new BufferedReader(new InputStreamReader(urlConn.getInputStream()));
PrintWriter servletOutput = response.getWriter();
servletOutput.print("<html><body><h1>This is the Source Servlet</h1><p />");
String line = null;
while (null != (line = cgiOutput.readLine())){
servletOutput.println(line);
}
cgiOutput.close();
servletOutput.print("</body></html>");
servletOutput.close();
}
}
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class Target extends HttpServlet {
private static final String CONTENT_TYPE = "text/html";
public void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.print("<h2>Target's output</h2><p /><pre><code>");
Enumeration enum = request.getParameterNames();
while (enum.hasMoreElements()){
String param = (String) enum.nextElement();
String value = request.getParameter(param);
out.println("param=" + param + " value=" + value);
}
out.print("</code></pre>");
}
}
