Installation and configuration tutorial of the Donovan framework
The Donovan framework is a lightweight Web framework developed based on Java. It provides a set of simple and efficient development models and tools to facilitate developers to quickly build a reliable and stable web application.This article will introduce the installation and configuration tutorials of the Donovan framework and provide some Java code examples.
1. Install the Donovan framework
To use the Donovan framework, you need to download and install the corresponding jar package first.You can obtain the Donovan's jar package through Maven or manually.Next, add the downloaded jar package to your Java project.
1. Maven method
Open the `pom.xml` file of the project, add the following dependencies:
<dependency>
<groupId>org.donovanframework</groupId>
<artifactId>donovan-core</artifactId>
<version>1.0.0</version>
</dependency>
Save and refresh the Maven project to make the dependencies take effect.
2. Manual download method
You can download the latest version of the JAR package from Donovan's official website (https://donovan.org).Copy the downloaded jar package to your project.
Second, configure the Donovan framework
After installing the Donovan framework, you also need to make some configurations to use.
1. Create a `donovan.properties` file and place it in your project root directory.In this file, you can set the configuration options of various frameworks.
properties
# Database connection configuration
db.driver=com.mysql.jdbc.Driver
db.url=jdbc:mysql://localhost:3306/mydb
db.username=root
db.password=123456
# 视 configuration
view.prefix=/WEB-INF/views/
view.suffix=.jsp
# 路 configuration
route.package=com.yourpackage.controller
# Static resource allocation
static.package=com.yourpackage.static
static.path=/static/
You need to modify the above configuration items based on your specific project.
2. Create a Servlet class that inherits the `DonovanServlet` and configure the service in the` web.xml`.
import org.donovanframework.servlet.DonovanServlet;
public class MyServlet extends DonovanServlet {
@Override
public void init() {
// Execute some initialization operations
}
}
Add the following configuration information to the `web.xml` file:
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>com.yourpackage.MyServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>MyServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
3. Use the Donovan framework
1. Create a Controller class for processing requests and responses.
import org.donovanframework.annotation.Controller;
import org.donovanframework.annotation.PathVariable;
import org.donovanframework.annotation.RequestMapping;
import org.donovanframework.annotation.RequestMethod;
import org.donovanframework.model.ModelAndView;
@Controller
public class MyController {
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public ModelAndView hello() {
ModelAndView modelAndView = new ModelAndView("hello");
modelAndView.addObject("message", "Hello, Donovan!");
return modelAndView;
}
@RequestMapping(value = "/user/{id}", method = RequestMethod.GET)
public ModelAndView getUser(@PathVariable("id") Integer userId) {
// Query user information according to the user ID, and return to the view
// ...
}
}
2. Create the corresponding view file and place it in the directory specified by the configuration item `view.prefix`.
For example, create a file called `Hello.jsp` in the`/web-inf/views/`directory:
jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Hello</title>
</head>
<body>
<h1>${message}</h1>
</body>
</html>
3. Run the project and visit the `http:// localhost: 8080/hello` to see the corresponding page content.
The above is the installation and configuration tutorial of the Donovan framework, and some Java code examples.Through this tutorial, you can quickly get started with the Donovan framework and use the simple and efficient development mode and tools provided by it to build a web application.I wish you a happy development of the Donovan framework!
