使用data-factory-core生成随机数据

亦凉 2022-09-07 05:49 339阅读 0赞

## 简介 ##

data-factory-core用于根据对象，随机自动生成初始化信息。便于测试。

data-factory-core功能：

*  支持8 大基本类型的
 *  支持数组、对象、枚举、Map、链表、Set 等
 *  支持String、BigDecimal、BigInteger、Currency 等常见类型
 *  支持Date、LocalDate、LocalDateTime、LocalTime、Year 等常见日期类型
 *  支持 Regex 正则表达式
 *  支持@DataFactory 注解，提供灵活配置

要想在项目中使用data-factory-core，首先需要添加如下所示的Maven依赖：

<dependency>
        <groupId>com.github.houbb</groupId>
        <artifactId>data-factory-core</artifactId>
        <version>1.1.0</version>
    </dependency>

## 快速入门 ##

### 实体类 ###

@Setter
    @Getter
    @ToString
    @Builder
    @NoArgsConstructor
    @AllArgsConstructor
    public class User { 
        private Integer id;
        private String username;
        private String password;
        private String nickname;
        private String avatar;
        private Boolean gender;
        private Date birth;
        private String email;
        private String role;
        private String salt;
        private Integer status;
        private Date createTime;
        private Date updateTime;
    }

### 测试代码 ###

@Test
    void fun1() { 
        User user = DataUtil.build(User.class);
        System.out.println(user);
    }

### 结果： ###

![在这里插入图片描述][f84c78f9911341dda393072918301409.png]

## 注解支持 ##

## 实体类 ##

@Setter
    @Getter
    @ToString
    @Builder
    @NoArgsConstructor
    @AllArgsConstructor
    public class Emp { 
        @DataFactory(min = 1000, max = 9909)
        private Integer empno;
        @DataFactory(minLen = 5, maxLen = 10)
        private String ename;
        @DataFactory(minLen = 5, maxLen = 8)
        private String job;
        @DataFactory(regex = "[1-9]{4,4}")
        private Integer mgr;
        @DataFactory(data = RandomLocalDate.class)  // --------①
        private LocalDate hiredate;
        @DataFactory(min = 3000, max = 5000, precision = 2)
        private BigDecimal sal;
        @DataFactory(min = 500, max = 1000, precision = 2)
        private BigDecimal comm;
        @DataFactory(ignore = true)
        private Integer deptno;
    }

上面代码编号①处是自定义 Data 生成策略

public class RandomLocalDate implements IData<LocalDate> { 
        @Override
        public LocalDate build(IContext iContext, Class<LocalDate> aClass) { 
            return genLocalDateTime();
        }
    
        /** * 生成指定范围内的随机日期时间 * @param min 起始日期，比如：2000-3-3 8:28:58 * @param max 终止日期，比如：2004-12-12 12:12:12 * @return */
        public static LocalDate genLocalDate(String min, String max) { 
            return LocalDate.now();
        }
    }

有关产生随机的LocalDate的方法请参考博客：[生成各种随机数据：随机数、随机字符串、随机汉字姓名、随机电话号码、随机日期][Link 1]

## 测试代码 ##

@Test
    void fun2() { 
        Emp emp = DataUtil.build(Emp.class);
        System.out.println(emp);
    }

## 结果 ##

![在这里插入图片描述][2d14b89a424746379f3f4d0d39125272.png]

[f84c78f9911341dda393072918301409.png]: /images/20220829/04a1185942a74db5bfb320b43e111bc6.png
[Link 1]: https://blog.csdn.net/lianghecai52171314/article/details/103814943?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162961058516780262520530%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=162961058516780262520530&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v2~rank_v29-1-103814943.pc_v2_rank_blog_default&utm_term=%E9%9A%8F%E6%9C%BA&spm=1018.2226.3001.4450
[2d14b89a424746379f3f4d0d39125272.png]: /images/20220829/a576abcba1bf4398a56584a64295513f.png