Getting started with the guice framework and getting started with the guice framework

Getting started with the guice framework and getting started with the guice framework

Guice framework is a framework similar to spring's ioc container. It is a simple and Lightweight Framework with extremely fast speed and high flexibility. Now I will write several guice programs first.

Here I will not provide the guice jar package, which can be easily downloaded.

Similar to spring, an interface and its implementation class must be provided before injection can be implemented. Program:

Interface HelloGuice:

package cn.com.guice;/** * Created by xiaxuan on 15/7/10. */public interface HelloGuice {    public void sayHello();}

Implementation class:

package cn.com.guice.impl;import cn.com.guice.HelloGuice;/** * Created by xiaxuan on 15/7/10. */public class HelloGuiceImpl implements HelloGuice{    @Override    public void sayHello() {        System.out.println("Hello Guice!");    }}

Here we use a non-annotation form.

A module is used for injection and binding. The program is as follows:

package cn.com.guice;import cn.com.guice.impl.HelloGuiceImpl;import com.google.inject.Binder;import com.google.inject.Module;/** * Created by xiaxuan on 15/7/10. */public class HelloGuiceModule implements Module{    @Override    public void configure(Binder binder) {        binder.bind(HelloGuice.class).to(HelloGuiceImpl.class);    }}

This basically completes the injection. Now we can test this program.

The test is as follows:

package cn.com.guice;import cn.com.guice.HelloGuice;import cn.com.guice.HelloGuiceModule;import com.google.inject.Guice;import com.google.inject.Injector;/** * Created by xiaxuan on 15/7/10. */public class TestGuice {    public static void  main(String[] args){        Injector injector= Guice.createInjector(new HelloGuiceModule());        HelloGuice helloGuice=injector.getInstance(HelloGuice.class);        helloGuice.sayHello();    }}

Test results:

This completes di dependency injection.

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