How to execute a servlet from a java code

Question

Hi,
          I am trying to make a URL connection to a particular site and trying
          to execute the servlet at the site specified and then storing the image
          pointed to by the servlet in a tmp location.I am passing the servlet id
          in the param Parameter.and the
          HTTP link in the URLString.
          This code worked fine with a CGI script but is not working
          properly with a servlet.
          A sample servlet code
          <img SRC=http://xyz/ABCServlet?imageKey=51752
          2881"/>
          private String executeServlet(String URLString, String param) {
          try {
          URL url = new URL(URLString);
          URLConnection connection = url.openConnection();
          connection.setDoOutput(true);
          PrintWriter out = new
          PrintWriter(connection.getOutputStream());
          out.println(param) ;
          out.close();
          BufferedReader in = new BufferedReader(new
          InputStreamReader(
          connection.getInputStream()));
          String inputLine;
          String inputData = "" ;
          while ((inputLine = in.readLine()) != null)
          inputData = inputData + inputLine ;
          in.close();
          System.out.println(inputData) ;
          return inputData ;
          Could anyone one help me out in this.
          Thanks,
          Trita
          

Answer 1

Hi,
          I would assume your image is a binary file, and therefore you should use
          class for byteStream instead of charStream classes, i.e. Reader.
          Michael
          Trita Tripathi <[email protected]> wrote in message
          news:[email protected]...
          > Hi,
          > I am trying to make a URL connection to a particular site and trying
          > to execute the servlet at the site specified and then storing the image
          > pointed to by the servlet in a tmp location.I am passing the servlet id
          > in the param Parameter.and the
          > HTTP link in the URLString.
          > This code worked fine with a CGI script but is not working
          > properly with a servlet.
          > /*
          > A sample servlet code
          > <img SRC=http://xyz/ABCServlet?imageKey=51752
          > 2881"/>
          > */
          >
          > private String executeServlet(String URLString, String param) {
          >
          > try {
          > URL url = new URL(URLString);
          > URLConnection connection = url.openConnection();
          > connection.setDoOutput(true);
          >
          > PrintWriter out = new
          > PrintWriter(connection.getOutputStream());
          > out.println(param) ;
          > out.close();
          >
          > BufferedReader in = new BufferedReader(new
          > InputStreamReader(
          > connection.getInputStream()));
          > String inputLine;
          > String inputData = "" ;
          >
          > while ((inputLine = in.readLine()) != null)
          > inputData = inputData + inputLine ;
          >
          > in.close();
          >
          > System.out.println(inputData) ;
          > return inputData ;
          > }
          > Could anyone one help me out in this.
          >
          > Thanks,
          > Trita
          >
          >
          >
          >