Java fluent风格

骑猪看日落 2022-05-20 23:47 208阅读 0赞

写个简单的例子，相信看了下面的例子，就会了解什么是fluent风格。

#### 一.我们先写一个通常的，即不使用fluent风格 ####

1.实体类

![复制代码][copycode.gif]

package com.xbq.demo.stu;
    
    /**
     * @ClassName: Student 
     * @Description: TODO(学生实体类) 
     * @author xbq 
     * @date 2017-3-26 下午9:54:00 
     */
    public class Student {
    
        private String name;
        private String address;
        
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getAddress() {
            return address;
        }
        public void setAddress(String address) {
            this.address = address;
        }
        
        @Override
        public String toString() {
            return "Student [name=" + name + ", address=" + address + "]";
        }
    }

![复制代码][copycode.gif]

2.测试类

![复制代码][copycode.gif]

package com.xbq.demo.stu;
    
    /**
     * @ClassName: Test 
     * @Description: TODO(测试学生实体，非 fluent风格) 
     * @author xbq 
     * @date 2017-3-26 下午9:55:34 
     */
    public class Test {
    
        public static void main(String[] args) {
            Student student = new Student();
            student.setName("张三");
            student.setAddress("广东深圳");
            System.out.println(student);
        }
    }

![复制代码][copycode.gif]

####  二.再写一个使用fluent风格的 ####

1.实体类

![复制代码][copycode.gif]

package com.xbq.demo;
    
    /**
     * @ClassName: Student  
     * @Description: TODO(学生实体类) 
     * @author xbq 
     * @date 2017-3-26 下午7:56:20 
     */
    public class Student {
    
        private String name;
        private String address;
        
        // 设置name的值，并且返回实体
        public Student setName(String name){
            this.name = name;
            return this;
        }
        
        // 设置address的值，并且返回实体
        public Student setAddress(String address){
            this.address = address;
            return this;
        }
        
        public String getName() {
            return name;
        }
        public String getAddress() {
            return address;
        }
        
        // 返回学生实体，可以做成单例
        public static Student build(){
            return new Student();
        }
        
        @Override
        public String toString() {
            return "Student [name=" + name + ", address=" + address + "]";
        }
    }

![复制代码][copycode.gif]

2.测试类

![复制代码][copycode.gif]

package com.xbq.demo;
    
    /**
     * @ClassName: Test 
     * @Description: TODO(测试学生实体， fluent风格) 
     * @author xbq 
     * @date 2017-3-26 下午9:59:22 
     */
    public class Test {
    
        public static void main(String[] args) {
            Student student = Student.build().setName("李四").setAddress("广东广州");
            System.out.println(student.getName());
        }
    }

![复制代码][copycode.gif]

转载于：https://www.cnblogs.com/xbq8080/p/6624305.html

[copycode.gif]: /images/20220521/80a30439530e4882b830d56f5f4ba108.png