Use @data in Lombok to simplify entity class code

While studying today , Learned to quote lombok, Methods to simplify entity class code ,
First call lombox, Before that, we have to be in setting Of plugin Download lombok Plug in for , Otherwise call get,set Method is not prompted

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
</dependency>

And then in pojo Add annotations to the entity class of

package com.muyu.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User{
    
	private long id;
	private String name;
	private Integer age;
	private String email;
}

The effect achieved is equivalent to this

package com.muyu.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

public class User{
    
	private long id;
	private String name;
	private Integer age;
	private String email;

	public User() {
    
	}

	public User(long id, String name, Integer age, String email) {
    
		this.id = id;
		this.name = name;
		this.age = age;
		this.email = email;
	}

	public long getId() {
    
		return id;
	}

	public void setId(long id) {
    
		this.id = id;
	}

	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 String getEmail() {
    
		return email;
	}

	public void setEmail(String email) {
    
		this.email = email;
	}

	@Override
	public boolean equals(Object o) {
    
		if (this == o) return true;
		if (o == null || getClass() != o.getClass()) return false;

		User user = (User) o;

		if (id != user.id) return false;
		if (name != null ? !name.equals(user.name) : user.name != null) return false;
		if (age != null ? !age.equals(user.age) : user.age != null) return false;
		return email != null ? email.equals(user.email) : user.email == null;
	}

	@Override
	public int hashCode() {
    
		int result = (int) (id ^ (id >>> 32));
		result = 31 * result + (name != null ? name.hashCode() : 0);
		result = 31 * result + (age != null ? age.hashCode() : 0);
		result = 31 * result + (email != null ? email.hashCode() : 0);
		return result;
	}

	@Override
	public String toString() {
    
		return "User{" +
				"id=" + id +
				", name='" + name + '\'' +
				", age=" + age +
				", email='" + email + '\'' +
				'}';
	}
}

The following is a detailed explanation of usage

• @Data ： Annotation on class ; Providing all properties of the class getting and setting Method , It also provides equals、hashCode、toString Method
• @Setter： Comment on attribute ; Provide... For properties setting Method
• @Getter： Comment on attribute ; Provide... For properties getting Method
• @Log4j ： Annotation on class ; Provide a... For the class Properties, log Of log4j Log object
• @NoArgsConstructor： Annotation on class ; Provides a parameterless construction method for a class
• @AllArgsConstructor： Annotation on class ; Provide a construction method of all parameters for the class