2.2.5 单例模式 : 突破多个类加载器

探讨了在Java中如何使用单例模式突破多个类加载器的问题,介绍了一个可能的方法,通过获取当前线程的上下文类加载器或默认类加载器来加载类。

2.2.5 单例模式 : 突破多个类加载器

暂未研究 - 这个方法应该可行

private static Class getClass(String classname)   throws ClassNotFoundException {     
      ClassLoader classLoader = Thread.currentThread().getContextClassLoader();     
      
      if(classLoader == null)     
         classLoader = Singleton.class.getClassLoader();     
      
      return (classLoader.loadClass(classname));     
   }     
}
[INFO] +- org.springframework.boot:spring-boot-starter-websocket:jar:2.2.5.RELEASE:compile [INFO] +- org.springframework.boot:spring-boot-starter-web:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot-starter-json:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot-starter-tomcat:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot-starter-validation:jar:2.2.5.RELEASE:compile [INFO] +- org.springframework.boot:spring-boot-starter:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot-autoconfigure:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot-starter-logging:jar:2.2.5.RELEASE:compile [INFO] +- org.springframework.boot:spring-boot-devtools:jar:2.2.5.RELEASE:compile (optional) [INFO] +- org.springframework.boot:spring-boot-starter-data-jpa:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot-starter-aop:jar:2.2.5.RELEASE:compile [INFO] | +- org.springframework.boot:spring-boot-starter-jdbc:jar:2.2.5.RELEASE:compile [INFO] +- org.springframework.boot:spring-boot-starter-data-redis:jar:2.2.5.RELEASE:compile [INFO] +- com.alibaba:druid-spring-boot-starter:jar:1.2.8:compile [INFO] +- org.springframework.boot:spring-boot-starter-test:jar:2.2.5.RELEASE:test [INFO] | +- org.springframework.boot:spring-boot-test:jar:2.2.5.RELEASE:test [INFO] | +- org.springframework.boot:spring-boot-test-autoconfigure:jar:2.2.5.RELEASE:test
03-17
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