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Comparison of template mechanisms in other programming languages?

王林

May 08, 2024 pm 02:39 PM

phpjavaspring frameworkTemplate mechanism

The Java template engine enhances the maintainability and reusability of applications by separating code and data. Popular Java template engines include: Thymeleaf: powerful, rich in syntax, and seamlessly integrated with the Spring framework. FreeMarker: Flexible and versatile. Velocity: lightweight, mainly used to generate website pages.

Comparison of template mechanisms in other programming languages?

Getting Started with Java Template Engine

The template mechanism is a powerful tool that allows developers to separate code and data. This creates more maintainable and reusable applications. There are many different template engines in Java, each with its own advantages and disadvantages.

The following are some popular template engines in Java:

Thymeleaf: A feature-rich template engine that provides powerful template syntax and integration with the Spring framework Seamless integration.
FreeMarker: A flexible template engine known for its flexibility and wide range of features.
Velocity: A lightweight template engine, mainly used to generate website pages.

Practical Case

Let us create a simple template using Thymeleaf:

<!DOCTYPE html>
<html>
<head>
    <title>欢迎</title>
</head>
<body>
    <h1 id="欢迎-name">欢迎，{{name}}！</h1>
</body>
</html>

and use the template with the following Java code :

import org.thymeleaf.context.Context;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.TemplateSpec;
import org.thymeleaf.templatemode.TemplateMode;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;

public class TemplateDemo {

    public static void main(String[] args) {
        // 创建模板解析器
        ClassLoaderTemplateResolver resolver = new ClassLoaderTemplateResolver();
        resolver.setPrefix("/templates/");
        resolver.setSuffix(".html");
        resolver.setTemplateMode(TemplateMode.HTML);

        // 创建模板引擎
        TemplateEngine templateEngine = new TemplateEngine();
        templateEngine.setTemplateResolver(resolver);

        // 创建上下文
        Context context = new Context();
        context.setVariable("name", "John");

        // 应用模板
        String html = templateEngine.process("welcome", context);

        // 输出 HTML
        System.out.println(html);
    }
}

By separating templates and data, we can easily create dynamic web pages.

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