Lombock的使用

项目中经常使用bean，enty等类，绝大部分数据类类中都需要get、set、toString、equals和hashCode方法，虽然
eclipse和idea开发环境下都有自动生成的快捷方式，但自动生成这些代码后，如果bean中的属性一旦有修改、删除或
增加时，需要重新生成或删除get/set等方法，给代码维护增加负担。

1、在IDEA中安装Lombock插件

20170208191759698.jpg 20170208191829916.jpg

2、添加lombok的maven的pom.xml依赖：

<!--lombok依赖-->
<dependency>
  <groupId>org.projectlombok</groupId>
  <artifactId>lombok</artifactId>
  <version>1.16.10</version>
</dependency>

3、示例代码Student.java

package com.lombok.demo;
 
 
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;
 
/**
 * Created by zhangzh on 2017/2/8.
 */
@Setter
@Getter
@ToString
@EqualsAndHashCode
public class Student {
 
    private String name;
    private int age;
    private String male;
    private String studentNo;
}

4. 测试类LombokTest.java

package com.lombok.demo;
 
import lombok.extern.java.Log;
 
/**
 * Created by zhangzh on 2017/2/8.
 */
@Log
public class LombokTest {
 
    public static void main(String[] args) {
 
        Student student = new Student();
        student.setAge(27);
        student.setMale("man");
        student.setName("lance");
        student.setStudentNo("2017");
 
        System.out.println(student.toString());
 
        Student student2 = new Student();
        student2.setAge(27);
        student2.setMale("man");
        student2.setName("lance");
        student2.setStudentNo("2017");
 
        System.out.println(student.equals(student2));
 
        student2.setStudentNo("2018");
 
        System.out.println(student.equals(student2));
 
        log.info("lombok test");
 
    }
}

5. 输出结果:

Student(name=lance, age=27, male=man, studentNo=2017)
true
false
lombok test