SPI浅析
package com.example.demo.spi;/*** @Author tianjl* @Date 2021/10/11 10:11* @Discription disc*/public interface MySpi {void show();}
package com.example.demo.spi.imp;import com.example.demo.spi.MySpi;/*** @Author tianjl* @Date 2021/10/11 10:12* @Discription disc*/public class MySpi1 implements MySpi {public void show() {System.out.println("this is myspi one~~~~");}}
package com.example.demo.spi.imp;import com.example.demo.spi.MySpi;/*** @Author tianjl* @Date 2021/10/11 10:12* @Discription disc*/public class MySpi2 implements MySpi {public void show() {System.out.println("this is myspi two~~~~");}}

public class TestSpi {public static void main(String[] args) {Iterator providers= Service.providers(MySpi.class);ServiceLoader loader=ServiceLoader.load(MySpi.class);while (providers.hasNext()){MySpi service=providers.next();service.show();}System.out.println("------");Iterator iterator=loader.iterator();while (iterator.hasNext()){MySpi service=iterator.next();service.show();}}}





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