JAVA Web real-time message background server push technology---GoEasy
More and more projects require the push and reception of real-time messages. I recommend everyone to use GoEasy, which is a third-party push service platform. You can easily handle real-time push using its API!
Browser compatibility: GoEasy push supports two connection methods: websocket and polling, which can support all versions of IE6 and above, and also supports other browsers such as Firefox, Chrome, Safari, etc.
Supports different development languages: GoEasy Push provides a Restful API interface. No matter which language your background program uses, you can achieve background real-time push through the Restful API. Such as: Java, PHP, C#, Ruby, Python, C, C++, ASP.NET, Node.js...
Supports backend and frontend push: Restful API is used in the backend, and goeasy.js is used in the frontend; very simple to use!
Let me introduce the steps to use GoEasy:
1. You need to register an account on the goeasy official website and create an application. After the application is created, the system will generate two keys for it by default: publish key and subscribe key.
2. Real-time subscription and reception at the front desk
You only need to introduce goeasy.js, and then call goeasy's subscribe method to subscribe to a channel. When subscribing, you can use either publish key or subscribe key. Messages can be received in real time through the callback function of subscribe's parameter onMessage.
3. For front-end real-time push
you still need to introduce goeasy.js (if the page has already been introduced, you can no longer import it), and then call goeasy's publish method to push messages to the subscribed channels. You can only use publish when pushing. key.
4. Backend real-time push
Call GoEasy Restful API, use post method to access http://goeasy.io/goeasy/publish, and also need to bring three necessary parameters:
appkey: publish key
channel: The channel you subscribed to
content: Pushing content
is that simple.
Principle of push: The implementation principle of GoEasy is very simple, that is, one end of the push message is only responsible for pushing, and the pages that need to be received need to be subscribed in advance. What to subscribe to? Subscribe to the channel. When a message is pushed to a certain channel, the client subscribes to the same channel, thus ensuring accurate reception. Through the channel, we can specify which pages or users can receive messages pushed from this channel.
Below I will post a small example I wrote before, which uses Javascript to subscribe, push, receive, and unsubscribe on the web page. The appkey inside is the appkey of goeasy official demo.
<html>
<head>
<title>GoEasy Test</title>
<script type="text/javascript" src="https://cdn.goeasy.io/goeasy.js"></script>
<script type="text/javascript">
if(typeof GoEasy !== 'undefined'){
var goEasy = new GoEasy({
appkey: 'ba821151-e043-4dfb-a954-c73744c8d323',
userId:"222",
username:"22",
onConnected:function(){
console.log("Connect to GoEasy success.");
} ,
onDisconnected:function(){
console.log("Disconnect to GoEasy server.");
} ,
onConnectFailed:function(error){
console.log("Connect to GoEasy failed, error code: "+ error.code+" Error message: "+
error.content);
}
});
}
subscribe();
function subscribe(){
goEasy.subscribe({
channel: 'notification',
onMessage: function(message){
console.log('Meessage received:'+message.content);
},
onSuccess:function(){
console.log("Subscribe the Channel successfully.");
},
onFailed: function(error){
console.log("Subscribe the Channel failed, error code: "+ error.code + " error
message: "+ error.content);
}
});
}
function publishMessage(){
goEasy.publish({
channel: 'notification',
message: 'You received a new notification',
onSuccess:function(){
console.log("Publish message success.");
},
onFailed: function(error){
console.log("Publish message failed, error code: "+ error.code +" Error message:
"+ error.content);
}
});
}
function unsubscribe(){
goEasy.unsubscribe({
channel:"notification",
onSuccess: function(){
console.log("Cancel Subscription successfully.");
},
onFailed: function(error){
console.log("Cancel the subscrition failed, error code: "+ error.code +
"error message: "+ error.content);
}
});
}
</script>
</head>
<body>
<input type="button" value="publish" onclick="publishMessage()"/>
<input type="button" value="unsubscribe" onclick="unsubscribe()"/>
<input type="button" value="subscribe" onclick="subscribe()"/>
</body>
</html>
The above is the content of JAVA Web real-time message background server push technology---GoEasy. For more related content, please pay attention to the PHP Chinese website (www.php.cn)!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Break or return from Java 8 stream forEach?
Feb 07, 2025 pm 12:09 PM
Java 8 introduces the Stream API, providing a powerful and expressive way to process data collections. However, a common question when using Stream is: How to break or return from a forEach operation? Traditional loops allow for early interruption or return, but Stream's forEach method does not directly support this method. This article will explain the reasons and explore alternative methods for implementing premature termination in Stream processing systems. Further reading: Java Stream API improvements Understand Stream forEach The forEach method is a terminal operation that performs one operation on each element in the Stream. Its design intention is
PHP: A Key Language for Web Development
Apr 13, 2025 am 12:08 AM
PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
PHP vs. Python: Understanding the Differences
Apr 11, 2025 am 12:15 AM
PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.
PHP vs. Other Languages: A Comparison
Apr 13, 2025 am 12:19 AM
PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
Java Program to Find the Volume of Capsule
Feb 07, 2025 am 11:37 AM
Capsules are three-dimensional geometric figures, composed of a cylinder and a hemisphere at both ends. The volume of the capsule can be calculated by adding the volume of the cylinder and the volume of the hemisphere at both ends. This tutorial will discuss how to calculate the volume of a given capsule in Java using different methods. Capsule volume formula The formula for capsule volume is as follows: Capsule volume = Cylindrical volume Volume Two hemisphere volume in, r: The radius of the hemisphere. h: The height of the cylinder (excluding the hemisphere). Example 1 enter Radius = 5 units Height = 10 units Output Volume = 1570.8 cubic units explain Calculate volume using formula: Volume = π × r2 × h (4
PHP vs. Python: Core Features and Functionality
Apr 13, 2025 am 12:16 AM
PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.
Create the Future: Java Programming for Absolute Beginners
Oct 13, 2024 pm 01:32 PM
Java is a popular programming language that can be learned by both beginners and experienced developers. This tutorial starts with basic concepts and progresses through advanced topics. After installing the Java Development Kit, you can practice programming by creating a simple "Hello, World!" program. After you understand the code, use the command prompt to compile and run the program, and "Hello, World!" will be output on the console. Learning Java starts your programming journey, and as your mastery deepens, you can create more complex applications.
PHP: The Foundation of Many Websites
Apr 13, 2025 am 12:07 AM
The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.
