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POGWT Async call always fail
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  1. POGWT Async call always fail
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    copied!<p>I have some problems with my gwt project, i use eclipselink and hsqldb as database.</p> <p>Here is my code: <strong>Project.java:</strong></p> <pre><code>package com.example.client; public class Project implements EntryPoint { private final EmployeeServiceAsync eService = (EmployeeServiceAsync) GWT.create(EmployeeService.class); [...] some GWT code @Override public void onModuleLoad() { eService.createemployee(new AsyncCallback&lt;Void&gt;() { @Override public void onFailure(Throwable caught) { Window.alert("Fail!"); } @Override public void onSuccess(Void result) { //nothing } }); </code></pre> <p>but it fail every time with this warning:</p> <pre><code>WARNING: No file found for: /project/employeeService </code></pre> <p>So how i can call this method properly?</p> <p><strong>EmployeeService.java</strong></p> <pre><code>package com.example.client.service; @RemoteServiceRelativePath("employeeService") public interface EmployeeService extends RemoteService{ public void createemployee(); } </code></pre> <p><strong>EmployeeServiceAsync.java</strong></p> <pre><code>package com.example.client.service; public interface EmployeeServiceAsync { void createemployee(AsyncCallback&lt;Void&gt; callback); } </code></pre> <p><strong>EmployeeServiceImpl</strong></p> <pre><code>package com.example.server.ServiceImpl; public class EmployeeServiceImpl extends RemoteServiceServlet implements EmployeeService { private static final long serialVersionUID = 1L; public void createemployee() { javax.persistence.EntityManagerFactory emf = Persistence.createEntityManagerFactory("ronfPU"); javax.persistence.EntityManager em = emf.createEntityManager(); try { // Create new Employee em.getTransaction().begin(); Employee e1 = new Employee(); e1.setName("admin"); e1.setSurname("admin"); e1.setUsername("admin"); e1.setPassword("admin"); em.persist(a1); em.getTransaction().commit(); } finally { em.close(); } } } </code></pre> <p>Employee class is stored in com.example.shared.entity; I think that persistence.xml and project.gwt.xml are ok, but i'm not sure about <strong>web.xml</strong> code:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"&gt; &lt;!-- Servlets --&gt; &lt;servlet&gt; &lt;servlet-name&gt;employeeServiceImpl&lt;/servlet-name&gt; &lt;servlet-class&gt; com.example.server.ServiceImpl.EmployeeServiceImpl &lt;/servlet-class&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;employeeServiceImpl&lt;/servlet-name&gt; &lt;/servlet-mapping&gt; &lt;!-- Default page to serve --&gt; &lt;welcome-file-list&gt; &lt;welcome-file&gt;Project.html&lt;/welcome-file&gt; &lt;url-pattern&gt;/com.example.client.Project/employeeService&lt;/url-pattern&gt; &lt;/welcome-file-list&gt; &lt;/web-app&gt; </code></pre> <p>First should be, if I understand correctly, derives from <code>@RemoteServiceRelativePath("employeeService")</code>; while <code>&lt;servlet-class&gt;</code> derives from the class stored in the server-side wich extends RemoteServiceServlet; <code>&lt;servlet-mapping&gt;</code> should be the same of <code>&lt;servlet-name&gt;</code>, and here, in <code>&lt;url-pattern&gt;</code>, i'm not sure about what i wrote.</p> <p>How you suggest to run properly this code? Thank you in advance!</p>
 

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