java对象设计模式之Builder模式探索

设计目的： 解决代码的可读性

常规构建一个对象，属性不清晰，若属性过多，就会模糊！

build 模式如下（在原有类中构建一个静态内部类，此类作用主要用于展示）：

即把属性先传到内部类，通过设置内部类的属性，在传递给原始内的构造函数，在此中间，即可展示属性，对比如下：

原始代码：

package com.wpwet.test.mode;

public class Person {

    private String name;
    private Integer age;
    private Integer score;
    private Double wight;
    private Double heiht;

    public Person(String name, Integer age, Integer score, Double wight, Double heiht) {
        this.name = name;
        this.age = age;
        this.score = score;
        this.wight = wight;
        this.heiht = heiht;
    }

    public Person (Build build){
        this.name  = build.name;
        this.age   =  build.age;
        this.score =  build.score;
        this.wight =  build.wight;
        this.heiht =  build.heiht;
    }

    public String getName() {return name;}

    public void setName(String name) {this.name = name;}

    public Integer getAge() {return age;}

    public void setAge(Integer age) {this.age = age;}

    public Integer getScore() {return score;}

    public void setScore(Integer score) {this.score = score;}

    public Double getWight() {return wight;}

    public void setWight(Double wight) {this.wight = wight;}

    public Double getHeiht() {return heiht;}

    public void setHeiht(Double heiht) {this.heiht = heiht;}

    static class Build{
        private String name;
        private Integer age;
        private Integer score;
        private Double wight;
        private Double heiht;

        public Build name(String name){
            this.name = name;
            return this;
        }
        public Build age(Integer age){
            this.age = age;
            return this;
        }
        public Build score(Integer score){
            this.score = score;
            return this;
        }
        public Build wight(Double wight){
            this.wight = wight;
            return this;
        }
        public Build heiht(Double heiht){
            this.heiht = heiht;
            return this;
        }

        public Person build( ){return new Person(this);
        }

    }



    public static void main(String[] args) {Person person = new Person("xiaoing",10,90,32.0,90.0);
        Person person1 = new Build().name("xiaoming").age(16).heiht(90.0).score(90).wight(32.0).build();}
}