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该注解会生成带有参数的构造函数 这里的参数指的是所有final修饰的未初始化的字段以及使用了@NonNull注解修饰的字段 生成的构造函数,默认权限修饰符为public 下面为带注解的代码与不带注解的代码对比 @RequiredArgsConstructor public class RequiredArgsDemo1 { private Long id; @NonNull private String username; @NonNull private String email; private final boolean status; } public class RequiredArgsDemo1 { private Long id; @NonNull private String username; @NonNull private String email; private final boolean status; public RequiredArgsDemo1( @NonNull fina...