Java代码中写set/get方法了，逮到罚款！
程序IT圈
共 4987字，需浏览 10分钟
·
2020-07-30 17:29
前言
Lombok背景介绍
Project Lombok makes java a spicier language by adding 'handlers' that know how to build and compile simple, boilerplate-free, not-quite-java code.
Lombok使用方法
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>1.18.10version>
<scope>providedscope>
dependency>
将 Lombok 插件安装到 IDEA
file -> setting
选择默认的编译方式为 javac，因为 eclipse 是不支持 Lombok 的编译方式的，javac 支持 Lombok 的编译方式。 打开注解生成器 Enable annotation processing
https://plugins.jetbrains.com/plugin/6317-lombok/versions
@Data
public class Student {
private String name;
private Integer age;
private Integer id;
private String major;
}
public class Student {
@Setter private String name;
private Integer age;
private Integer id;
private String major;
public static void main(String[] args) {
Student stu = new Student();
stu.setName("Mr.ml");
}
}
public class Student {
@Setter private String name;
private Integer age;
private Integer id;
private String major;
public Student(@NonNull String name) {
this.name = name;
}
}
public class CleanupExample {
public static void main(String[] args) throws IOException {
@Cleanup InputStream in = new FileInputStream(args[0]);
@Cleanup OutputStream out = new FileOutputStream(args[1]);
byte[] b = new byte[10000];
while (true) {
int r = in.read(b);
if (r == -1) break;
out.write(b, 0, r);
}
}
}
@EqualsAndHashCode(exclude={"id", "shape"})
public class EqualsAndHashCodeExample {
private transient int transientVar = 10;
private String name;
private double score;
private Shape shape = new Square(5, 10);
private String[] tags;
private int id;
public String getName() {
return this.name;
}
@EqualsAndHashCode(callSuper=true)
public static class Square extends Shape {
private final int width, height;
public Square(int width, int height) {
this.width = width;
this.height = height;
}
}
}
@ToString(exclude="id")
public class ToStringExample {
private static final int STATIC_VAR = 10;
private String name;
private Shape shape = new Square(5, 10);
private String[] tags;
private int id;
public String getName() {
return this.getName();
}
@ToString(callSuper=true, includeFieldNames=true)
public static class Square extends Shape {
private final int width, height;
public Square(int width, int height) {
this.width = width;
this.height = height;
}
}
}
@RequiredArgsConstructor(staticName = "of")
@AllArgsConstructor(access = AccessLevel.PROTECTED)
public class ConstructorExample<T> {
private int x, y;
@NonNull private T description;
@NoArgsConstructor
public static class NoArgsExample {
@NonNull private String field;
}
}
最后给大家送下福利，大家可以关注程序IT圈公众号，在后台回复 “1024”可以获取一份我整理的各种编程视频。
往期推荐：
看完本文有收获？点赞、分享是最大的支持
明天见(｡･ω･｡)ﾉ♡
评论