我有以下ServerEndpoint,它只不过是一个测试:
import java.io.IOException;
import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.server.ServerEndpoint;
@ServerEndpoint(value = "/echo")
public class EchoService {
/**
* @OnOpen allows us to intercept the creation of a new session.
* The session class allows us to send data to the user.
* In the method onOpen, we'll let the user know that the handshake was
* successful.
*/
@OnOpen
public void onOpen(Session session){
System.out.println(session.getId() + " has opened a connection");
try {
session.getBasicRemote().sendText("Connection Established");
} catch (IOException ex) {
ex.printStackTrace();
}
}
/**
* When a user sends a message to the server, this method will intercept the message
* and allow us to react to it. For now the message is read as a String.
*/
@OnMessage
public void onMessage(String message, Session session){
System.out.println("Message from " + session.getId() + ": " + message);
try {
session.getBasicRemote().sendText(message);
} catch (IOException ex) {
ex.printStackTrace();
}
}
/**
* The user closes the connection.
*
* Note: you can't send messages to the client from this method
*/
@OnClose
public void onClose(Session session){
System.out.println("Session " +session.getId()+" has ended");
}
}
现在我正在尝试使用Simple Websocket Client Chrome Extension连接到它,但它永远无法连接。
我认为这可能与我使用Tomcat 8作为servlet容器这一事实有关。我将此依赖项添加到我的pom.xml
<dependency>
<groupId>javax.websocket</groupId>
<artifactId>javax.websocket-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
请注意,我将其设置为提供,因为tomcat 8附带websocket api .. 我想知道是否应该在我的web.xml中添加一些内容,但无法找到任何相关的内容..
我尝试连接的URI是ws:// localhost:8080 / ecommerce-view / echo,因为我的项目战被命名为ecommerce-view
欢迎任何帮助。
答案 0 :(得分:0)
尝试使用public IEnumerable<TestCaseData> GetExtraWifQuestionsTestData()
{
yield return TestCaseData1();
yield return TestCaseData2();
}
。因此,请删除@ServerEndpoint("/echo")