1. 基本知识
@AllArgsConstructor 是 Lombok 提供的一个注解，用于自动生成一个包含所有参数的构造函数
简化构造函数的编写：通常情况下，Java 类中需要手动编写构造函数来初始化类的实例变量
使用 @AllArgsConstructor 注解可以自动生成一个包含所有实例变量的构造函数，减少编码量
使用方法
-
- 引入依赖：在项目的依赖中加入 Lombok 库
- 在类上添加注解：在需要使用该注解的类上添加
@AllArgsConstructor注解
示例：
import lombok.AllArgsConstructor;
@AllArgsConstructor
public class MyClass {
private String field1;
private int field2;
private double field3;
}
生成的构造函数如下：
public MyClass(String field1, int field2, double field3) {
this.field1 = field1;
this.field2 = field2;
this.field3 = field3;
}
2. 实战
对于@Service注解中也可使用
@Service
@AllArgsConstructor
public class WireRopeReplaceOrderServiceImpl extends BaseServiceImpl<WireRopeReplaceOrderMapper, WireRopeReplaceOrder> implements IWireRopeReplaceOrderService {
private IInfoService infoService;
private IInfoRunningDataService iInfoRunningDataService;
private IInfoWireropeDataService infoWireropeDataService;
private IInfoRunningDataRopeService infoRunningDataRopeService;
private RedisIdGeneratorService redisIdGeneratorService;
类似如下：
@Service
public class WireRopeReplaceOrderServiceImpl extends BaseServiceImpl<WireRopeReplaceOrderMapper, WireRopeReplaceOrder> implements IWireRopeReplaceOrderService {
@Autowired
private IInfoService infoService;
@Autowired
private IInfoRunningDataService iInfoRunningDataService;
@Autowired
private IInfoWireropeDataService infoWireropeDataService;
@Autowired
private IInfoRunningDataRopeService infoRunningDataRopeService;
@Autowired
private RedisIdGeneratorService redisIdGeneratorService;