无法打开Tomcat上与WebSocket连接8

Question

我有以下ServerEndpoint这只不过是测试更多：

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"); 
} 

} 

现在我想将它连接使用Simple Websocket Client Chrome Extension，但它从来没有连接。

我认为这可能与我使用Tomcat 8作为servlet容器的事实有关。我加入这个依赖于我的pom.xml

<dependency> 
    <groupId>javax.websocket</groupId> 
    <artifactId>javax.websocket-api</artifactId> 
    <version>1.0</version> 
    <scope>provided</scope> 
</dependency> 

注意，我设置好的，因为它的tomcat 8自带的WebSocket API所提供.. 我想知道如果我要补充点东西给我的web.xml，但无法找到任何有关..

的URI，我试图连接是WS：//本地主机：8080 /电子商务画面/回音，因为我的项目战争被命名为电子商务视

任何帮助是值得欢迎的。

Answer 1

试用@ServerEndpoint("/echo")。所以，删除value=