Java japplet到servlet通信，未到达servlet

我试图将post数据从japplet发送到servlet“Connexion”，但我放在servlet init方法和processRequest方法中的输出永远不会显示在控制台中

这是我的japplet中的send方法调用

 private void jButtonEntrerActionPerformed(java.awt.event.ActionEvent evt) {                                              
    try {
        String infos = "login=" + URLEncoder.encode(FieldLogin.getText(), "UTF-8")
                + "&mdp=" + URLEncoder.encode(FieldMdp.getText(), "UTF-8")+"&action=Login";
    //"http://localhost:8088/Web_Applic_Achats_2/Connexion"

    SendPost("/Connexion", infos, getCodeBase());
    } catch (UnsupportedEncodingException ex) {
        Logger.getLogger(Register.class.getName()).log(Level.SEVERE, null, ex);
    }
}   

sendPost方法定义（在抽象类Send中）

最后是我的servlet连接

public class Connexion extends HttpServlet{

BeanBDAccess bdAccess= null;
ServletContext sc;

@Override
public void init() throws ServletException {
    System.out.println("Hey init");
    try {
        bdAccess= new BeanBDAccessMysql("BD_SOCIETE", "root", "boulaite");
    } catch (Exception ex) {
        Logger.getLogger(Connexion.class.getName()).log(Level.SEVERE, null, ex);
    }
    sc = getServletContext();
}

@Override
public void destroy() {
    if(bdAccess != null)
    {
        try {
            bdAccess.FermerConnectionBd();
        } catch (Exception ex) {
            Logger.getLogger(Connexion.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
{
    System.out.println("Hey processRequest");
    request.setCharacterEncoding("UTF-8");
    response.setContentType("text/html;charset=UTF-8");

    // .... code ....
 }
}

编辑

我运行了许多测试，发现http服务器监视器（netbeans）中没有我的参数或完整的请求uri。 但是当我在applet中输出url时，url是正常的

上次编辑：

我不知道它是否会改变什么，但我在http服务器监视器中注意到，我得到了一个304 status:exit未修改

什么是processRequest（）方法，您希望如何调用它？将此设置为doPost（）。doGet（）和doPost（）调用processRequest（），它们由netbeans在创建servlet时生成

public class Connexion extends HttpServlet{

BeanBDAccess bdAccess= null;
ServletContext sc;

@Override
public void init() throws ServletException {
    System.out.println("Hey init");
    try {
        bdAccess= new BeanBDAccessMysql("BD_SOCIETE", "root", "boulaite");
    } catch (Exception ex) {
        Logger.getLogger(Connexion.class.getName()).log(Level.SEVERE, null, ex);
    }
    sc = getServletContext();
}

@Override
public void destroy() {
    if(bdAccess != null)
    {
        try {
            bdAccess.FermerConnectionBd();
        } catch (Exception ex) {
            Logger.getLogger(Connexion.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
{
    System.out.println("Hey processRequest");
    request.setCharacterEncoding("UTF-8");
    response.setContentType("text/html;charset=UTF-8");

    // .... code ....
 }
}