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Ahoj,

potrebuju propojit java servlet s JSP souborem. jedna se o formular ,ktery vytvari novou entitu a ja potrebuju dostat data z formulare co uzivatel vlozi do servletu.

v servletu mam metodu addContact a provadim ji v doGet i v doPost

Domnivam se, ze problem bude zrejme v nastaveni cesty v jsp souboru. zkousel jsem treba

<form action="/jmenoServletu/urlPatternServletu" method="post"> ale pri vykonavani metody addContact se nenacetla data z formulare proste se mi to nepropoji... proste potrebuju propojit jsp formular se sevletem a nevim presne co mam napsat do action="????"

Servlet nejprve vypise seznam entit v db a pak se zobrazi formular pro vytvoreni noveho kontaktu.

Budu rad za kazde nakopnuti

Servlet:

@WebServlet(name = "AddressBookServlet", urlPatterns = {"/do"})

public class AddressBookServlet extends HttpServlet {

    private GroupManagerImpl groupManager = new GroupManagerImpl();
    private ContactManagerImpl contactManager = new ContactManagerImpl();
   
    @Resource(name = "jdbc/AddressBookManagerWeb")
    private void setDataSource(DataSource dataSource) {
        groupManager.setDataSource(dataSource);
        contactManager.setDataSource(dataSource);
        
    }

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

        List<Group> groups = groupManager.getAllGroups();
        request.setAttribute("groups", groups);
        List<Contact> contact = contactManager.getAllContacts();
        request.setAttribute("contacts", contact);
        request.getRequestDispatcher("/list.jsp").forward(request, response);
        
    }
    
    protected void addContact(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
        
        

                String name = request.getParameter("name");
                String surname = request.getParameter("surname");
                String phoneNumber = request.getParameter("phonenumber");
                String email = request.getParameter("email");

                //zpracování dat - vytvoření záznamu v databázi
                try {
                    Contact contact = new Contact();
                    contact.setName(name);
                    contact.setSurname(surname);
                    contact.setPhoneNumber(phoneNumber);
                    contact.setEmail(email);
                    
                    contactManager.createContact(contact);
                    
                } catch (Exception e) {
                    response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
                    
                }
            
        
    }
       

 
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
        addContact(request, response);
    }

   
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
        addContact(request, response);
    }

  
    @Override
    public String getServletInfo() {
        return "Short description";
    }
}

Inicializace formulare v jsp souboru. Nejsem s to sem dat celu obsah kvuli tagum, formular mi porad hazi same chyby typu:

Značky PRE a TH jsou překříženy!

atd... proste nasleduje klasicky formular pro zadavani parametru

        


<form action="/servlet/do" method="post">
<table>
        <tr>
            Name:
            <td><input type="text" name="name" value="<c:out value='${param.name}'/>"/>TD tag
     
</form>