An Easy Way To Troubleshoot Java Servlet Problems In Android

August 23, 2021 By Gary Lamb Off

 

You can get an error code pointing to Android Java Servlet. There are now several ways to solve this problem, which we will discuss shortly.

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    I am trying to get the output of a servlet on an android phone.

      / *     7. To modify this template, select Tools | model      and open the editor in structure.     * /    Basic policy;    import java.io.IOException;    java import.io.PrintWriter;    import javax.servlet.ServletException;    Javax.servlet.http.HttpServlet;    Relevance javax.servlet.http.HttpServletRequest;    Javax.servlet.http.HttpServletResponse value;    / * *     *    * @autor Bert Verhelst      * /    public class servlet1 hundredHttpServlet is updated        / **         (empty) Handle the request for the  GET  and  POST  HTTP methods.         (Space) @param request Servlet request         * @ parameter-response-servlet-response         * @throws ServletException when a servlet specific error occurs         5. @ Throws an IOException when an I / O error occurs         * /        void processRequest protected (HttpServletRequest request, HttpServletResponse response)                throws ServletException, IOException            response.setContentType ("text / html; charset = UTF-8");            PrintWriter out = response.getWriter ();            out.println ("");            out.println ("");           Output .println (" Servlet-Servlet1 ");            out.println ("");            out.println ("");            out.println ("

    Processing ...

    "); out.println (""); out.println (""); // Defaultstate = "collapsed" / ** 1. Control the HTTP GET method. * @Param request Servlet request * @Param rejoin servlet response * @throws ServletException if a specific Servlet error occurs * @ throws an IOException when an I / O error occurs * / @ Crush protected empty doGet (HttpServletRequest, HttpServletResponse) brings ServletException, IOException processRequest (request, response); PrintWriter and = response.getWriter (); out.println (" n " + " n" + " Hello WWW n" " n" + + "

    Doget ...

    n" + " "); / ** * Handles any POST HTTP method. 6. Request @param Request Servlet 5. Response @param Servlet response * @throws ServletException if a specific Servlet error occurs 4. @ Throws an IOException when an I / O error occurs * / @ Crush protected void doPost (HttpServletRequest, HttpServletResponse) throws ServletException, IOException processRequest (request, response); PrintWriter out corresponds to response.getWriter (); out.println (" n " + " n" + " Hello WWW n" + " n" + "

    Add ...

    n" + " "); / ** * Returns a short description of the servlet. - @return a string containing the description of the servlet * / @ Crush Customerstring getServletInfo () returns "Short Description"; //

    Field

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  •   be.smarttelecom.MyTest;     Android.app.Activity value;     Carry the android.os package;    import android.widget.TextView;     Policy class Extended core activity         / ** Called when a workout is created. * /         @ Crush         public void onCreate (package saveInstanceState)             super.onCreate (savedInstanceState);             setContentView (R.layout.main);             Result TextView = (TextView) findViewById (R.id.output);             Try                 output.append ("Start  n");                 RestClient-Client = new RestClient ("http://10.0.0.188:8084/Servlet_1/servlet1");                 you could try                     client.Execute (RequestMethod.GET);                  fish (exception e)                     e.printStackTrace ();                                  output.append ("after execution  n");                 String = solution client.getResponse ();                 output.append ("class - + answer +"  n ");                 output.append (response);                Add output ("done  n");                          capture (exception)                 output.append ("Error: half an inch + ex.getMessage () +"  n "+ ex.toString () +"  n ");                            

      package be.smarttelecom.MyTest;     import java.io.BufferedReader;     import java.io.IOException;     import java.io.InputStream;    import java.io.InputStreamReader;     import java.util.ArrayList;     import org.apache.http.HttpEntity;     org import.apache.http. HTTP response;    import org.apache.http. Name-value pair;    import org.apache.http.client.ClientProtocolException;     import org.apache.http.client. http client;    import org.apache.http.client.entity.UrlEncodedFormEntity;     import org.apache.http.client.methods.HttpGet;     import org.apache.http.client.methods.HttpPost;    Import org.apache.http.client.methods.HttpUriRequest;     by default import org.apache.http.impl.client.httpclient;    import org.apache.http.message.Basic namevaluepair;    import org.apache.http.protocol.HTTP;     public class RestClient         private parameter ArrayList ;         Private ArrayList header- ;         Private channel URL         private int ResponseCode;         private channel message;         custom string response;         Gov string getResponse ()             To answer;                  public string getErrorMessage ()             Message; restore         public int getResponseCode ()             Return response code;                  public RestClient (url string)                      this.url = url;             params means new ArrayList  ();             headers = Newbie ArrayList  ();                  public void AddParam (string name, string value)                      params.add (new BasicNameValuePair (name, value));                  ko muno void AddHeader (string name, string value)                      headers.add (new BasicNameValuePair (name, value));                  public void Execute (RequestMethod method) throws an exception                      Switch (method)                 GET case:                                      // add parameters                     Combined string parameters mean "";                     if (! params.isEmpty ())                         combined parameters + = "?";                         for (NameValuePair p: parameter)                                                      ParamString means p.getName () + "=" + p.getValue ();                             if (CombinedParams.length ()> 1)                                                              CombinedParams + = "&" + paramString;                                                          another                                                              CombineParams + = paramString;                                                                                                HttpGet request means new HttpGet (url + CombinedParams);                     // add headers
    android java servlet

     

     

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