WebSocket connection to 'ws:127.0.0.1:8080cmdprog' failed: Error during WebSocket handshake: Unexpected respon

WebSocket连接到 # 039；ws:127 . 0 . 0 . 1:8080 cmd Prog # 039；失败:WebSocket握手期间出错:意外响应代码:WebSocket连接到 # 039；ws:127 . 0 . 0 . 1:8080 cmd Prog # 039；失败:WebSocket握手时出错:意外响应代码:简介:java代码如下:import Java . util . concurrent . time unit； 导入javax . web socket . onclose； 导入javax.websoc