做ppt介绍网站吗网站建设的大功效

做ppt介绍网站吗,网站建设的大功效,遵义创意网站设计,软件定制化开发公司背景#xff1a;java游戏服务器#xff0c;其实很多时候#xff0c;都是不用SpringBoot这个东西#xff0c;而是全程自己管理整个项目#xff0c;这时想看清楚依赖关系#xff0c;就可以采用下面的方式。1)单例管理package com.example.demo.util;import java.util.Linke…背景java游戏服务器其实很多时候都是不用SpringBoot这个东西而是全程自己管理整个项目这时想看清楚依赖关系就可以采用下面的方式。1)单例管理package com.example.demo.util; import java.util.LinkedHashMap; import java.util.Map; public class SingletonManager { private static final MapClass?, Object singletons new LinkedHashMap(); public static T T getIns(ClassT clz) { Object single singletons.get(clz); if (single null) { try { single init(clz); } catch (Exception e) { e.printStackTrace(); } } return (T) single; } public static Object init(Class? clz) throws Exception { if (singletons.get(clz) null) { Object ins clz.newInstance(); singletons.put(clz, ins); return ins; } return null; } }2)Apackage com.example.demo.service; import com.example.demo.util.SingletonManager; public class AService { private BService bService; public static AService getInstance() { return SingletonManager.getIns(AService.class); } public void init() { bService BService.getInstance(); } public void a() { System.out.println(a bService.b()); } public String aa(){ return aa; } } /* ab */3)Bpackage com.example.demo.service; import com.example.demo.util.SingletonManager; public class BService { private AService aService; public static BService getInstance() { return SingletonManager.getIns(BService.class); } public void init() { aService AService.getInstance(); } public String b(){ return b aService.aa(); } }4)Mainpackage com.example.demo; import com.example.demo.service.AService; import com.example.demo.service.BService; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; SpringBootApplication public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); AService aService AService.getInstance(); aService.init(); BService bService BService.getInstance(); bService.init(); // 打印 aService.a(); } } /* abaa */