我在code.google.com上查看了幾篇教程並閱讀了官方文檔,但仍無法解決此問題。爲GWT服務設置入口點時遇到問題
我正在創建一個簡單的服務來檢查用戶是否可以登錄。
客戶端:
public interface LoginService extends RemoteService {
/**
* Checks, if user has valid login.
* @param user User's login.
* @return True if such a login is in the database.
*/
boolean isValidUser(User user);
}
這裏是異步接口:
public interface LoginServiceAsync {
/**
* Checks, if user has valid login.
* @param user User's login.
* @param callback the callback to return True if such a login is in the database.
*/
void isValidUser(User user, AsyncCallback<Boolean> callback);
}
服務器端:
public class LoginServiceImpl extends RemoteServiceServlet implements LoginService {
/**
* serial version UID
*/
private static final long serialVersionUID = 1044980345057997696L;
/**{@inheritDoc} */
@Override
public boolean isValidUser(User user) {
boolean success = true; //TODO change
}
}
現在我有入口點類MailClient.java 。我在這裏追加小部件,如:
CustomWidgets.getLoginWidget(this); // access rootPanel and append widget
現在我需要做的實際調用我的服務,這裏是問題:
LoginServiceAsync loginService = (LoginServiceAsync) GWT.create(LoginService.class);
User user = new User(boxName.getText(), boxPassword.getText());
AsyncCallback<Boolean> callback = new AsyncCallback<Boolean>() {
@Override
public void onFailure(Throwable caught) {
Window.alert(caught.getMessage()); //TODO change
}
@Override
public void onSuccess(Boolean result) {
Window.alert("success"); //TODO change
}
};
((ServiceDefTarget) loginService).setServiceEntryPoint(GWT.getModuleBaseURL()+"login"); // dunno what should be here
因此,要回顧一下,我不知道如何設置服務的入口點。
這是我的MailClient.gwt.xml文件:
<module>
<inherits name="com.google.gwt.user.User"/>
<inherits name="com.google.gwt.user.theme.standard.Standard"/>
<entry-point class="com.xorty.mailclient.client.MailClient"/>
<servlet path="/login"
class="com.xorty.mailclient.server.servlets.LoginServiceImpl" />
<inherits name="com.xorty.mailclient.MailClient"/>
<inherits name="com.xorty.mailclient.MailClient"/>
<inherits name="com.xorty.mailclient.MailClient"/>
<inherits name="com.xorty.mailclient.MailClient"/>
<inherits name="com.xorty.mailclient.MailClient"/>
</module>
我的web.xml文件:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<!-- Default page to serve -->
<welcome-file-list>
<welcome-file>MailClient.html</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>LoginService</servlet-name>
<servlet-class>com.xorty.mailclient.server.servlets.LoginServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginService</servlet-name>
<url-pattern>/com.xorty.mailclient.MailClient/login</url-pattern>
</servlet-mapping>
</web-app>
這裏是項目結構的屏幕截圖:
嗨,它實際上工作,因爲我張貼,但只在Tomcat。我不知道Jetty有什麼問題(它與我認爲用作默認容器的插件一起發貨)... – Xorty 2011-01-06 00:03:57