Go language programming examples: code examples in web development
Mar 04, 2024 pm 04:54 PM
"Go Language Programming Examples: Code Examples in Web Development"
With the rapid development of the Internet, Web development has become an indispensable part of various industries. . As a programming language with powerful functions and superior performance, Go language is increasingly favored by developers in web development. This article will introduce how to use Go language for Web development through specific code examples, so that readers can better understand and use Go language to build their own Web applications.
1. Simple HTTP server
First, let us start with a simple HTTP server. The following is a simple Go program that can implement a simple HTTP server:
package main
import (
"fmt"
"net/http"
)
func handler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hello, World!")
}
func main() {
http.HandleFunc("/", handler)
http.ListenAndServe(":8080", nil)
} In this example, we create an HTTP server and return "Hello, World!" under the root path "/" . Use the http.HandleFunc function to register the handler function handler, and then call http.ListenAndServe to start the server and listen to the 8080 port.
2. Use a template engine to render pages
In actual Web development, a template engine is usually used to render dynamic pages. Here is an example code that uses the html/template package from the Go standard library to render a page:
package main
import (
"html/template"
"net/http"
)
type PageData struct {
Title string
Message string
}
func handler(w http.ResponseWriter, r *http.Request) {
data := PageData{Title: "Welcome", Message: "Hello, World!"}
tmpl := template.Must(template.New("index").Parse("<h1>{{.Title}}</h1><p>{{.Message}}</p>"))
tmpl.Execute(w, data)
}
func main() {
http.HandleFunc("/", handler)
http.ListenAndServe(":8080", nil)
} In this example, we define a PageData structure body to store page data, then use the html/template package to create a template, and pass the data to the template for rendering.
3. Use third-party frameworks
In addition to the functions provided by the Go standard library, you can also use third-party frameworks to simplify web development. A popular framework is gin, here is a sample code using gin framework:
package main
import (
"github.com/gin-gonic/gin"
)
func main() {
r := gin.Default()
r.GET("/", func(c *gin.Context) {
c.JSON(200, gin.H{
"message": "Hello, World!",
})
})
r.Run(":8080")
} In this example, we use gin The framework creates a GET request handler and returns a JSON-formatted response.
Through the above examples, readers can learn how to use Go language for web development and master some common code examples. I hope this article will be helpful to readers who are learning or using Go language for web development.
The above is the detailed content of Go language programming examples: code examples in web development. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
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
.NET Core Quick Start Tutorial 1. The beginning: Talking about .NET Core
May 07, 2025 pm 04:54 PM
1. The Origin of .NETCore When talking about .NETCore, we must not mention its predecessor .NET. Java was in the limelight at that time, and Microsoft also favored Java. The Java virtual machine on the Windows platform was developed by Microsoft based on JVM standards. It is said to be the best performance Java virtual machine at that time. However, Microsoft has its own little abacus, trying to bundle Java with the Windows platform and add some Windows-specific features. Sun's dissatisfaction with this led to a breakdown of the relationship between the two parties, and Microsoft then launched .NET. .NET has borrowed many features of Java since its inception and gradually surpassed Java in language features and form development. Java in version 1.6
The Future of HTML, CSS, and JavaScript: Web Development Trends
Apr 19, 2025 am 12:02 AM
The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.
How to understand ABI compatibility in C?
Apr 28, 2025 pm 10:12 PM
ABI compatibility in C refers to whether binary code generated by different compilers or versions can be compatible without recompilation. 1. Function calling conventions, 2. Name modification, 3. Virtual function table layout, 4. Structure and class layout are the main aspects involved.
JavaScript in Action: Real-World Examples and Projects
Apr 19, 2025 am 12:13 AM
JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.
How to use the chrono library in C?
Apr 28, 2025 pm 10:18 PM
Using the chrono library in C can allow you to control time and time intervals more accurately. Let's explore the charm of this library. C's chrono library is part of the standard library, which provides a modern way to deal with time and time intervals. For programmers who have suffered from time.h and ctime, chrono is undoubtedly a boon. It not only improves the readability and maintainability of the code, but also provides higher accuracy and flexibility. Let's start with the basics. The chrono library mainly includes the following key components: std::chrono::system_clock: represents the system clock, used to obtain the current time. std::chron
The Power of React in HTML: Modern Web Development
Apr 18, 2025 am 12:22 AM
The application of React in HTML improves the efficiency and flexibility of web development through componentization and virtual DOM. 1) React componentization idea breaks down the UI into reusable units to simplify management. 2) Virtual DOM optimization performance, minimize DOM operations through diffing algorithm. 3) JSX syntax allows writing HTML in JavaScript to improve development efficiency. 4) Use the useState hook to manage state and realize dynamic content updates. 5) Optimization strategies include using React.memo and useCallback to reduce unnecessary rendering.
From Websites to Apps: The Diverse Applications of JavaScript
Apr 22, 2025 am 12:02 AM
JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.
How to create a SQLite database in Python?
May 23, 2025 pm 10:36 PM
Create a SQLite database in Python using the sqlite3 module. The steps are as follows: 1. Connect to the database, 2. Create a cursor object, 3. Create a table, 4. Submit a transaction, 5. Close the connection. This is not only simple and easy to do, but also includes optimizations and considerations such as using indexes and batch operations to improve performance.
