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我是 GWT 的新手，我的 Web 应用程序没有任何结果。

当我尝试调试时，出现“找不到源”之类的错误

这是所有项目中编写的代码

<---------------------------------------------------- ---------------------------------------------------->

入口点类

package body.test.combo.client;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.VerticalPanel;


public class Combo implements EntryPoint {


    private final FileReaderServiceAsync serviceAsync = GWT
            .create(FileReaderService.class);

    String content;

    /**
     * This is the entry point method.
     */
    public void onModuleLoad() {

    VerticalPanel vPanel = new VerticalPanel();
        serviceAsync.readMyFilePlease(new AsyncCallback<String>() {

            @Override
            public void onSuccess(String result) {
                content = result;

            }

            @Override
            public void onFailure(Throwable caught) {
                System.out.println("Tezak");

            }
        });

        Label lb = new Label(content);
        vPanel.add(lb);
        RootPanel.get().add(vPanel);
    }
}

<---------------------------------------------------- ---------------------------------------------------->

服务接口

package body.test.combo.client;

import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;

@RemoteServiceRelativePath("readmeplease")
public interface FileReaderService extends RemoteService {
    String readMyFilePlease();
}

<---------------------------------------------------- ---------------------------------------------------->

服务异步

package body.test.combo.client;

import com.google.gwt.user.client.rpc.AsyncCallback;

public interface FileReaderServiceAsync {
    void readMyFilePlease(AsyncCallback<String> callbackVariable);
}

<---------------------------------------------------- ---------------------------------------------------->

服务器实现类

package body.test.combo.server;

import com.google.gwt.user.server.rpc.RemoteServiceServlet;

import body.test.combo.client.FileReaderService;

public class FileReaderServiceImplementation extends RemoteServiceServlet implements FileReaderService {

    @Override
    public String readMyFilePlease() {
        String allContent = "ezayak yad ya sayed";
        return allContent;
    }

}

<---------------------------------------------------- ---------------------------------------------------->

Web.xml

<?xml version="1.0" encoding="UTF-8"?>
<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">

  <!-- Servlets -->
  <servlet>
    <servlet-name>readMyFilePlease</servlet-name>
    <servlet-class>body.test.combo.server.FileReaderServiceImplementation</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>readMyFilePlease</servlet-name>
    <url-pattern>/combo/readmeplease</url-pattern>
  </servlet-mapping>

  <!-- Default page to serve -->
  <welcome-file-list>
    <welcome-file>Combo.html</welcome-file>
  </welcome-file-list>

</web-app>

项目名称是“组合”。

4

1 回答 1

0

您的项目 xml 文件 (Combo.gwt.xml) 是否包含以下内容：

<module rename-to='combo'>

您可能还想尝试这篇文章中的一些建议。

发布该项目 xml 文件以及错误本身对您非常有用。

于 2013-01-20T19:54:46.397 回答