Spring01---简单配置

spring 简单配置

二、#松耦合 IOutputGenerator 接口

package com.chb.test01.loosely_coupled;

public interface IOutputGenerator {
    public void generateOutput();
}

CSV实现

package com.chb.test01.loosely_coupled;

public class CsvOutputGenerator implements IOutputGenerator{

    public void generateOutput() {
        System.out.println("Creating CsvOutputGenerator  Output......");
    }
}

JSON实现

package com.chb.test01.loosely_coupled;

public class JsonOutputGenerator implements IOutputGenerator{

    public void generateOutput() {
        System.out.println("Creating JsonOutputGenerator  Output......");
    }
}

2.2 工具类

package com.chb.test01.loosely_coupled;

public class OutputHelper {
    IOutputGenerator iOutputGenerator;
    public void generateOutput() {
        this.iOutputGenerator.generateOutput();
    }

    public void setiOutputGenerator(IOutputGenerator iOutputGenerator) {
        this.iOutputGenerator = iOutputGenerator;
    }
}

2.3、bean.xml实现松耦合配置 ref 指定具体实现的类的id,