Lombok的@Data注解包含的方法（没有全参构造方法）

目录

• Lombok的@Data注解包含的方法（没有全参构造方法）
• • 结论：
  • 测试：
  • • 1.Maven引入依赖
    • 2.安装lombok插件
    • 3.编写实体类
    • 4.编译
    • 5.查看target文件
    • 6.编译后的源代码

结论：

@Data ： 注解在实体类上，提供类的get、set、equals、hashCode、canEqual、toString、无参构造方法。注意：没有全参构造方法。

测试：

1.Maven引入依赖

  		org.projectlomboklomboktrue

2.安装lombok插件

3.编写实体类

/*** 用户数据的实体类*/
@Data
public class User implements Serializable {private Integer uid;private String username;private String password;private String salt;private String phone;private String email;private Integer gender;private String avatar;private Integer isDelete;
}

4.编译

点击compile进行编译。

5.查看target文件

6.编译后的源代码

 public class User implements Serializable {private Integer uid;private String username;private String password;private String salt;private String phone;private String email;private Integer gender;private String avatar;private Integer isDelete;public User() {}public Integer getUid() {return this.uid;}public String getUsername() {return this.username;}public String getPassword() {return this.password;}public String getSalt() {return this.salt;}public String getPhone() {return this.phone;}public String getEmail() {return this.email;}public Integer getGender() {return this.gender;}public String getAvatar() {return this.avatar;}public Integer getIsDelete() {return this.isDelete;}public void setUid(final Integer uid) {this.uid = uid;}public void setUsername(final String username) {this.username = username;}public void setPassword(final String password) {this.password = password;}public void setSalt(final String salt) {this.salt = salt;}public void setPhone(final String phone) {this.phone = phone;}public void setEmail(final String email) {this.email = email;}public void setGender(final Integer gender) {this.gender = gender;}public void setAvatar(final String avatar) {this.avatar = avatar;}public void setIsDelete(final Integer isDelete) {this.isDelete = isDelete;}public boolean equals(final Object o) {if (o == this) {return true;} else if (!(o instanceof User)) {return false;} else {User other = (User)o;if (!other.canEqual(this)) {return false;} else {label119: {Object this$uid = this.getUid();Object other$uid = other.getUid();if (this$uid == null) {if (other$uid == null) {break label119;}} else if (this$uid.equals(other$uid)) {break label119;}return false;}Object this$gender = this.getGender();Object other$gender = other.getGender();if (this$gender == null) {if (other$gender != null) {return false;}} else if (!this$gender.equals(other$gender)) {return false;}label105: {Object this$isDelete = this.getIsDelete();Object other$isDelete = other.getIsDelete();if (this$isDelete == null) {if (other$isDelete == null) {break label105;}} else if (this$isDelete.equals(other$isDelete)) {break label105;}return false;}Object this$username = this.getUsername();Object other$username = other.getUsername();if (this$username == null) {if (other$username != null) {return false;}} else if (!this$username.equals(other$username)) {return false;}label91: {Object this$password = this.getPassword();Object other$password = other.getPassword();if (this$password == null) {if (other$password == null) {break label91;}} else if (this$password.equals(other$password)) {break label91;}return false;}Object this$salt = this.getSalt();Object other$salt = other.getSalt();if (this$salt == null) {if (other$salt != null) {return false;}} else if (!this$salt.equals(other$salt)) {return false;}label77: {Object this$phone = this.getPhone();Object other$phone = other.getPhone();if (this$phone == null) {if (other$phone == null) {break label77;}} else if (this$phone.equals(other$phone)) {break label77;}return false;}label70: {Object this$email = this.getEmail();Object other$email = other.getEmail();if (this$email == null) {if (other$email == null) {break label70;}} else if (this$email.equals(other$email)) {break label70;}return false;}Object this$avatar = this.getAvatar();Object other$avatar = other.getAvatar();if (this$avatar == null) {if (other$avatar != null) {return false;}} else if (!this$avatar.equals(other$avatar)) {return false;}return true;}}}protected boolean canEqual(final Object other) {return other instanceof User;}public int hashCode() {int PRIME = true;int result = 1;Object $uid = this.getUid();int result = result * 59 + ($uid == null ? 43 : $uid.hashCode());Object $gender = this.getGender();result = result * 59 + ($gender == null ? 43 : $gender.hashCode());Object $isDelete = this.getIsDelete();result = result * 59 + ($isDelete == null ? 43 : $isDelete.hashCode());Object $username = this.getUsername();result = result * 59 + ($username == null ? 43 : $username.hashCode());Object $password = this.getPassword();result = result * 59 + ($password == null ? 43 : $password.hashCode());Object $salt = this.getSalt();result = result * 59 + ($salt == null ? 43 : $salt.hashCode());Object $phone = this.getPhone();result = result * 59 + ($phone == null ? 43 : $phone.hashCode());Object $email = this.getEmail();result = result * 59 + ($email == null ? 43 : $email.hashCode());Object $avatar = this.getAvatar();result = result * 59 + ($avatar == null ? 43 : $avatar.hashCode());return result;}public String toString() {Integer var10000 = this.getUid();return "User(uid=" + var10000 + ", username=" + this.getUsername() + ", password=" + this.getPassword() + ", salt=" + this.getSalt() + ", phone=" + this.getPhone() + ", email=" + this.getEmail() + ", gender=" + this.getGender() + ", avatar=" + this.getAvatar() + ", isDelete=" + this.getIsDelete() + ")";}
}

查看编译后的代码可以看到有get、set、equals、hashCode、canEqual、toString、无参构造方法，并没有全参构造方法。
想要全参构造方法需要添加 @AllArgsConstructor 注解。