我试图在websocket的open方法中获取用户ID,为此我使用的是shiro,但是对于Subject我得到null,这是我的方法:
len-1
有人知道我应该做什么吗?
答案 0 :(得分:5)
经过一天我解决了它,我改变了开放方法的类别:
@ServerEndpoint(value = "/chat/{room}", configurator = GetHttpSessionConfigurator.class, encoders = ChatMessageEncoder.class, decoders = ChatMessageDecoder.class)
public class ChatEndpoint {
private final Logger log = Logger.getLogger(getClass().getName());
@OnOpen
public void open(final Session session,
@PathParam("room") final String room, EndpointConfig config) {
log.info("session openend and bound to room: " + room);
Principal userPrincipal = (Principal) config.getUserProperties().get(
"UserPrincipal");
String user=null;
try {
user = (String) userPrincipal.getName();
} catch (Exception e) {
e.printStackTrace();
}
session.getUserProperties().put("user", user);
System.out.println("!!!!!!!! "+user);
}}
和GetHttpSessionConfigurator类:
public class GetHttpSessionConfigurator extends
ServerEndpointConfig.Configurator {
@Override
public void modifyHandshake(ServerEndpointConfig config,
HandshakeRequest request, HandshakeResponse response) {
config.getUserProperties().put("UserPrincipal",request.getUserPrincipal());
config.getUserProperties().put("userInRole", request.isUserInRole("someRole"));
}}
并从Principal实现我的用户模型并覆盖getName()方法以获取id:
@Override
public String getName() {
String id=Long.toString(getId());
return id;
}
答案 1 :(得分:0)
一个更简单的解决方案是使用javax.websocket.Session.getUserPrincipal(),该方法返回此会话的已验证用户,如果未为此会话验证任何用户,则返回null
>redis.execute_command('ZADD', set_name, 'NX', score, key)
诸如onMessage之类的后续方法也可以使用相同的方法来检索用户。