[Java知识库]【Java 8 操作函数接口Consumer】

package com.guahao.dap.mi.access.external.base;

import lombok.Data;

/**
 * @author 
 * @version V1.0
 * @since 2022/3/22 16:28
 */
@Data
public class Head {

    private String eyes;

    private String mouth;

    private String noise;
}

package com.guahao.dap.mi.access.external.base;

import lombok.Data;

/**
 * @author 
 * @version V1.0
 * @since 2022/3/22 15:50
 */
@Data
public class Result {

    private String statusCode;
    /**
     * /状态描述信息
     */
    private String desc;
}

package com.guahao.dap.mi.access.external.base;


import org.apache.cxf.jaxws.javaee.CString;

import java.util.function.Consumer;
import java.util.function.Function;

/**
 * @author 
 * @version V1.0
 * @since 2022/3/22 15:27
 */

@FunctionalInterface
public interface ThrowExceptionFunction<T extends Object> {
    //定义三个消费接口（只有入参，没有出参）
    void doAction(Consumer<? super T> action1,Consumer<? super T> action2,Consumer<? super T> action3);

}

package com.guahao.dap.mi.access.external.base;

/**
 * @author 
 * @version V1.0
 * @since 2022/3/22 15:30
 */
public class VUtils {
    public static ThrowExceptionFunction getResult(Head b) {
            return (co1,co2,co3) -> {
              if(b.getMouth()!=null){
                  co1.accept("mouth");
              }else if(b.getEyes()!=null){
                  co2.accept("eyes");
              }else {
                  co3.accept("else");
              }
            };
     }
}

package com.guahao.dap.mi.access.external.base;

/**
 * @author 
 * @version V1.0
 * @since 2021/10/27 15:56
 */
public class Test {

    @org.junit.Test
    public void test() {
        Head head = new Head();
        head.setEyes("111");
        Result result = new Result();
        VUtils.getResult(head).doAction(a -> {
            result.setDesc("有嘴"+a);
        },a -> {
            result.setDesc("有眼睛"+a);
        },a -> {
            result.setDesc("其他"+a);
        });
        System.out.println(result);
    }
}