Grails 连接到WebSocket失败:意外响应代码:404
我正在尝试用javax.websocket创建聊天。 我正在使用grails。3.0 这是我的控制器Grails 连接到WebSocket失败:意外响应代码:404,grails,java-websocket,Grails,Java Websocket,我正在尝试用javax.websocket创建聊天。 我正在使用grails。3.0 这是我的控制器 package chatting import javax.websocket.server.ServerEndpoint; import javax.websocket.OnMessage; @ServerEndpoint("/echo") public class WebsocketHomeController { def index() { }
package chatting
import javax.websocket.server.ServerEndpoint;
import javax.websocket.OnMessage;
@ServerEndpoint("/echo")
public class WebsocketHomeController {
def index() { }
@OnMessage
public String echo(String incomingMessage) {
return "I got this (" + incomingMessage + ")"
+ " so I am sending it back !";
}
}
这是我的index.gsp
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Web Socket JavaScript Echo Client</title>
<script language="javascript" type="text/javascript">
var echo_websocket;
function init() {
output = document.getElementById("output");
}
function send_echo() {
var wsUri = "ws://192.168.1.2:8080/WebsocketHome/echo";
writeToScreen("Connecting to " + wsUri);
echo_websocket = new WebSocket(wsUri);
echo_websocket.onopen = function (evt) {
writeToScreen("Connected !");
doSend(textID.value);
};
echo_websocket.onmessage = function (evt) {
writeToScreen("Received message: " + evt.data);
echo_websocket.close();
};
echo_websocket.onerror = function (evt) {
writeToScreen('<span style="color: red;">ERROR:</span> '
+ evt.data);
echo_websocket.close();
};
}
function showErrorInfo(e) {
alert('Error connecting socket'+e);
}
function doSend(message) {
echo_websocket.send(message);
writeToScreen("Sent message: " + message);
}
function writeToScreen(message) {
var pre = document.createElement("p");
pre.style.wordWrap = "break-word";
pre.innerHTML = message;
output.appendChild(pre);
}
window.addEventListener("load", init, false);
</script>
</head>
<body>
<h1>Echo Server</h1>
<div style="text-align: left;">
<form action="">
<input onclick="send_echo()" value="Press to send"
type="button">
<input id="textID" name="message" value="Hello Web Sockets"
type="text">
<br>
</form>
</div>
<div id="output"></div>
</body>
</html>
然后我在控制台日志中得到“this is running”
我必须做什么?要在grails 3中添加侦听器:
如果插件提供功能服务/域类/控制器。它们都可以在主应用程序中本地重用。您可以直接扩展,或者如果它很好,那么只需将其贡献回插件本身,供其他人使用您添加了套接字侦听器吗?将该块添加到同一个文件中走出该文件查看文件夹中的配置文件“创建您自己的”并添加您的web套接字端点。像这样吗?ServletContext.addListener(WebSockMethodeController)
public String echo(String incomingMessage) {
println "this is runing"
return "I got this (" + incomingMessage + ")"
+ " so I am sending it back !";
}
Closure doWithSpring() {
{->
myChatConfig DefaultChatConfig
}
}
package myappName
import path.to.WebsocketHomeController
import org.springframework.boot.context.embedded.ServletContextInitializer
import org.springframework.context.annotation.Bean
import javax.servlet.ServletContext
import javax.servlet.ServletException
class DefaultChatConfig {
@Bean
public ServletContextInitializer myInitializer() {
return new ServletContextInitializer() {
@Override
public void onStartup(ServletContext servletContext) throws ServletException {
ServletContext.addListener(WebsocketHomeController)
}
}
}
}