使用SpringBoot进行游戏服务器开发

背景：

之前一直只考虑用JavaSe进行游戏服务器开发，目前项目使用了Spring，发现还是非常好的，好处如下:

        好处1:依赖注入非常方便，我们只使用Spring最基本的功能即可，这样子就算是有一些模块不使用Spring管理也是非常方便的，因为我现在已经能轻松控制住Spring容器的声明周期。

        好处2: 模块之间就像搭建积木即可，又相互配合。 我想支持web也是非常轻松。

        好处3: 这样子再去整合Mybatis、或者其它的一些MQ、ES之类的中间件，就太简单了。

1.Application.java

package com.example.springbootgame.application;
 
import org.springframework.context.ApplicationContext;
 
public class Application {
    private static ApplicationContext applicationContext;
 
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
 
    public static void setApplicationContext(ApplicationContext applicationContext) {
        Application.applicationContext = applicationContext;
    }
 
    public static  T getBean(Class requiredType) {
        if (applicationContext == null) {
            return null;
        }
        return applicationContext.getBean(requiredType);
    }
 
}

2.RedisConfig.java

package com.example.springbootgame.config;
 
import org.springframework.stereotype.Component;
 
@Component
public class RedisConfig {
    public int port = 6379;
}

3.LoginHandler.java

package com.example.springbootgame.handler;
 
import com.example.springbootgame.config.RedisConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
 
@Controller
public class LoginHandler {
    @Autowired
    RedisConfig redisConfig;
 
    /**
     * 玩家登录
     */
    public void onCSLogin(){
        System.out.println(redisConfig.port);
    }
}

4.GameServer.java

package com.example.springbootgame;
 
import com.example.springbootgame.application.Application;
import com.example.springbootgame.handler.LoginHandler;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ConfigurableApplicationContext;
 
import java.io.IOException;
 
@SpringBootApplication
@Slf4j
public class GameServer {
    public static void registerShutdownHook() {
        Runtime.getRuntime().addShutdownHook(new Thread(() -> {
            log.info("gs shutdown in {}", Thread.currentThread().getName());
 
            // 测试bean的获取
            LoginHandler loginHandler = Application.getBean(LoginHandler.class);
            loginHandler.onCSLogin();
 
            // 关闭Spring容器
            ApplicationContext applicationContext = Application.getApplicationContext();
            if (applicationContext != null) {
                ConfigurableApplicationContext cac = (ConfigurableApplicationContext) applicationContext;
                cac.close();
            }
 
        }, "ShutdownHook-GameServer-Thread"));
    }
 
    public static void main(String[] args) {
        registerShutdownHook();
 
        // 启动Spring容器
        ApplicationContext applicationContext = SpringApplication.run(GameServer.class, args);
        Application.setApplicationContext(applicationContext);
 
 
        // 初始化各个模块,如:进行handler的扫描
 
        // 阻塞关服
        try {
            System.in.read();
        } catch (IOException e) {
            log.error("exception", e);
        }
    }
 
}

 
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::               (v2.7.17)
 
2023-11-18 14:54:16.886  INFO 4288 --- [           main] com.example.springbootgame.GameServer    : Starting GameServer using Java 11.0.11 on DESKTOP-JTMBOEI with PID 4288 (D:\2_test_java\SpringBootGame\target\classes started by Administrator in D:\2_test_java\SpringBootGame)
2023-11-18 14:54:16.889  INFO 4288 --- [           main] com.example.springbootgame.GameServer    : No active profile set, falling back to 1 default profile: "default"
2023-11-18 14:54:17.477  INFO 4288 --- [           main] com.example.springbootgame.GameServer    : Started GameServer in 0.924 seconds (JVM running for 1.979)
a
2023-11-18 14:54:19.189  INFO 4288 --- [meServer-Thread] com.example.springbootgame.GameServer    : gs shutdown in ShutdownHook-GameServer-Thread
6379