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Java example source code file (WebSocketServerIndexPage.java)
This example Java source code file (WebSocketServerIndexPage.java) is included in the alvinalexander.com
"Java Source Code
Warehouse" project. The intent of this project is to help you "Learn
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Learn more about this Java project at its project page.
The WebSocketServerIndexPage.java Java example source code
/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.example.http.websocketx.server;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.util.CharsetUtil;
/**
* Generates the demo HTML page which is served at http://localhost:8080/
*/
public final class WebSocketServerIndexPage {
private static final String NEWLINE = "\r\n";
public static ByteBuf getContent(String webSocketLocation) {
return Unpooled.copiedBuffer(
"<html>Web Socket Test" + NEWLINE +
"<body>" + NEWLINE +
"<script type=\"text/javascript\">" + NEWLINE +
"var socket;" + NEWLINE +
"if (!window.WebSocket) {" + NEWLINE +
" window.WebSocket = window.MozWebSocket;" + NEWLINE +
'}' + NEWLINE +
"if (window.WebSocket) {" + NEWLINE +
" socket = new WebSocket(\"" + webSocketLocation + "\");" + NEWLINE +
" socket.onmessage = function(event) {" + NEWLINE +
" var ta = document.getElementById('responseText');" + NEWLINE +
" ta.value = ta.value + '\\n' + event.data" + NEWLINE +
" };" + NEWLINE +
" socket.onopen = function(event) {" + NEWLINE +
" var ta = document.getElementById('responseText');" + NEWLINE +
" ta.value = \"Web Socket opened!\";" + NEWLINE +
" };" + NEWLINE +
" socket.onclose = function(event) {" + NEWLINE +
" var ta = document.getElementById('responseText');" + NEWLINE +
" ta.value = ta.value + \"Web Socket closed\"; " + NEWLINE +
" };" + NEWLINE +
"} else {" + NEWLINE +
" alert(\"Your browser does not support Web Socket.\");" + NEWLINE +
'}' + NEWLINE +
NEWLINE +
"function send(message) {" + NEWLINE +
" if (!window.WebSocket) { return; }" + NEWLINE +
" if (socket.readyState == WebSocket.OPEN) {" + NEWLINE +
" socket.send(message);" + NEWLINE +
" } else {" + NEWLINE +
" alert(\"The socket is not open.\");" + NEWLINE +
" }" + NEWLINE +
'}' + NEWLINE +
"</script>" + NEWLINE +
"<form onsubmit=\"return false;\">" + NEWLINE +
"<input type=\"text\" name=\"message\" value=\"Hello, World!\"/>" +
"<input type=\"button\" value=\"Send Web Socket Data\"" + NEWLINE +
" onclick=\"send(this.form.message.value)\" />" + NEWLINE +
"<h3>Output" + NEWLINE +
"<textarea id=\"responseText\" style=\"width:500px;height:300px;\">" + NEWLINE +
"</form>" + NEWLINE +
"</body>" + NEWLINE +
"</html>" + NEWLINE, CharsetUtil.US_ASCII);
}
private WebSocketServerIndexPage() {
// Unused
}
}
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