现在在JBuilder下做试验，applet向servlet传递字符串再传回来，但是调试发现applet根本找不到servlet，如何解决？我的applet和servlet1在同一目录下

applet中主要代码如下：

String queryString = "/servlet1?qry=" + URLEncoder.encode(translateStr);

                 URLConnection uc = (new URL(/tech-qa-java/chatURL,queryString/index.html)).openConnection();
                 uc.connect();
                 uc.setDoOutput(true);
                 uc.setDoInput(true);
                 uc.setUseCaches(false);
                 uc.setRequestProperty("Content-type","application/x-www-form-urlencoded");

                 DataOutputStream dos = new DataOutputStream(uc.getOutputStream());
                 dos.writeBytes(translateStr);
                 dos.flush();
                 dos.close();

                 InputStreamReader in = new InputStreamReader(uc.getInputStream());

                 int chr = in.read();
                 while(chr != -1)
                 {
                       jTextField2.append(String.valueOf((char)chr));
                       chr = in.read();
                 }
                 in.close();

//  Listing 2
//
//  Applet client-side code to send a student object
//  to a servlet in a serialized fashion.
//
//  A POST method is sent to the servlet.
//

URL studentDBservlet = new URL(/tech-qa-java/webServerStr/index.html);
URLConnection servletConnection = studentDBservlet.openConnection();  

// inform the connection that we will send output and accept input
servletConnection.setDoInput(true);          
servletConnection.setDoOutput(true);
        
// Don't use a cached version of URL connection.
servletConnection.setUseCaches (false);
servletConnection.setDefaultUseCaches (false);

// Specify the content type that we will send binary data
servletConnection.setRequestProperty ("Content-Type", "application/octet-stream");
                           
// send the student object to the servlet using serialization
outputToServlet = new ObjectOutputStream(servletConnection.getOutputStream());
        
// serialize the object
outputToServlet.writeObject(theStudent);
        
outputToServlet.flush();         
outputToServlet.close();

//-------------------------------------

//  Listing 5
//
//  Applet client-side code to read a serialized 
//  vector of student objects from a servlet.
//
//

// connect to the servlet
URL studentDBservlet = new URL(/tech-qa-java/servletLocation/index.html);
URLConnection servletConnection = studentDBservlet.openConnection();  
             
// Don't used a cached version of URL connection.
servletConnection.setUseCaches (false);
servletConnection.setDefaultUseCaches(false);

// Read the input from the servlet.  
//
// The servlet will return a serialized vector containing
// student entries.
//
inputFromServlet = new ObjectInputStream(servletConnection.getInputStream());
studentVector = (Vector) inputFromServlet.readObject();

SERVLET中：
//接收APPLET传过来的数据
          ObjectInputStream input = new ObjectInputStream(request.getInputStream());
          Vector in_vector = (Vector) input.readObject();
          input.close();
//返回数据到APPLET中
          ObjectOutputStream output = new ObjectOutputStream(response.getOutputStream());
          output.writeObject(out_vector);
          output.flush();
          output.close();


APPLET中：
//传数据到SERVLET中
outputToServlet = new ObjectOutputStream(servletConnection.getOutputStream());
        
outputToServlet.writeObject(out_vector);
        
outputToServlet.flush();         
outputToServlet.close();

//接受SERVLET数据
inputFromServlet = new ObjectInputStream(servletConnection.getInputStream());
inVector = (Vector) inputFromServlet.readObject();