Google Guice 与 Noear Solon 的简单对照

1. 简介

Google Guice 是一个轻量级的依赖注入框架,它支持Java 5或者更高版本的JDK。Noear Solon 也是一个轻量级的依赖注入框架,它支持Java 8或者更高版本的JDK

本文会通过一些例子来初步的认识一下 Guice 和 Solon 的区别,及互通性。

2. 添加依赖

guice

<dependency>
    <groupId>com.google.inject</groupId>
    <artifactId>guice</artifactId>
</dependency>

solon

<dependency>
    <groupId>org.noear</groupId>
    <artifactId>solon</artifactId>
</dependency>

3. 基础用法对照

  • (a) 注入

Guice 的项目代码样例(略过 logger 和 communicator 的来源)

public class Communication {
    @Inject 
    private Logger logger;

    @Inject
    private Communicator communicator;

    public boolean sendMessage(String message) {
        return communicator.sendMessage(message);
    }
    
    public static void main(String[] args){
        Injector injector = Guice.createInjector();
        
        Communication comms = injector.getInstance(Communication.class)
        comms.sendMessage("软件质量保障");    
    }
}

Solon 的项目代码样例(略过 logger 和 communicator 的来源)

@Component
public class Communication {
    @Inject 
    private Logger logger;

    @Inject
    private Communicator communicator;

    public boolean sendMessage(String message) {
        return communicator.sendMessage(message);
    }
    
    public static void main(String[] args){
        Solon.start(Communication.class, args);
        
        Communication comms = Solon.context().getBean(Communication.class);
        comms.sendMessage("软件质量保障");    
    }
}
  • (b) 反向控制绑定

Guice。此模块实现将Communicator绑定到其默认实现类DefaultCommunicatorImpl上,在找到Communicator的地方都将注入Default CommunicatorImpl的实例。

public class BasicModule extends AbstractModule {
    @Override
    protected void configure() {
        bind(Communicator.class).to(DefaultCommunicatorImpl.class);
    }
}

Solon。则通过在 DefaultCommunicatorImpl 类上,添加组件注解。

@Component
public class DefaultCommunicatorImpl extneds Communicator{
}
  • (c) by name 注入

Guice

@Inject @Named("DefaultCommunicator")
Communicator communicator;


@Override
protected void configure() {
    bind(Communicator.class)
      .annotatedWith(Names.named("DefaultCommunicator"))
      .to(DefaultCommunicatorImpl.class);
}

Solon

@Inject("DefaultCommunicator")
Communicator communicator;


@Component("DefaultCommunicator")
public class DefaultCommunicatorImpl extneds Communicator{
}
posted @ 2024-10-29 17:56  带刺的坐椅  阅读(113)  评论(0编辑  收藏  举报