lombok入门

女爷i 2022-01-20 12:53 185阅读 0赞

# pom.xml加入依赖 #

<dependency>
    			<groupId>org.projectlombok</groupId>
    			<artifactId>lombok</artifactId>
    			<optional>true</optional>
    		</dependency>
    复制代码

# 不用lombok的User.java #

public class User {
        private Integer id;
        private String name;
    
        public Integer getId() {
            return id;
        }
        public void setId(Integer id) {
            this.id = id;
        }
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
    
        public User() {
        }
    
        public User(Integer id, String name) {
            this.id = id;
            this.name = name;
        }
    
        @Override
        public String toString() {
            return "User{" +
                    "id=" + id +
                    ", name='" + name + '\'' + '}'; } } 复制代码

# 用lombok的UserHaveLombok.java #

@NoArgsConstructor
    @AllArgsConstructor
    @Data
    public class UserHaveLombok {
        private String name;
        private double age;
    }
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##### 其中 #####

###### @AllArgsConstructor用来指定全参数构造器 ######

###### @NoArgsConstructor用来指定无参数构造器 ######

###### @Data包含了@Getter @Setter @ToString @EqualsAndHashCode RequiredArgsConstructor注解 ######

# UserController.java #

@RestController
    public class UserController {
    
        @GetMapping(value = "/")
        public List<User> UserTest()
        {
            User user=new User();
            user.setId(2);
            user.setName("pan");
            List<User>list=new ArrayList<>();
            list.add(user);
            User user1=new User(3,"chen");
            list.add(user1);
            return list;
        }
    
        @RequestMapping(value = "userHaveLombok")
        public List<UserHaveLombok> haveLomboks()
        {
            List<UserHaveLombok>lists=new ArrayList<>();
            UserHaveLombok userHaveLombok=new UserHaveLombok();
            userHaveLombok.setAge(9);
            userHaveLombok.setName("panbingwen");
            lists.add(userHaveLombok);
            UserHaveLombok userHaveLombok1=new UserHaveLombok("chen",8);
            lists.add(userHaveLombok1);
            return lists;
        }
    }
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