无法读取JSON：无法从START_ARRAY令牌中反序列化“ someclass”实例：Springboot Websockets

如何解决无法读取JSON：无法从START_ARRAY令牌中反序列化“ someclass”实例：Springboot Websockets

从Web套接字传递对象时遇到问题 这是我的螺旋代码

private sessionDetails = {
        sessionId: String,token: String
    };

sendMessage(sessionId,token) {
        this.sessionDetails.sessionId = sessionId ;
        this.sessionDetails.token = token;
        this.stompClient.send('/app/send/message',{},this.sessionDetails);
    }

我从Spring引导后端接收了这个WS requset

@MessageMapping( "/send/message" )
    public void receiveMessage(@Payload SessionDetails sessionDetails) {
        //some logic
    }

SessionDetails类还具有“ sessionId”和“ token”属性

但是我遇到了错误

Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of "myClass" out of START_ARRAY token at [Source: (byte[])"[object Object]"; line: 1,column: 1]

有人可以告诉我我在做什么错吗？