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xybCoder avatar xybCoder commented on June 18, 2024

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tomridder avatar tomridder commented on June 18, 2024

public class HostType {
//多少种Host类型
public static final int TYPE_COUNT = 3;

//网易新闻视频的host
@HostTypeChecker
public static final int GANK_TYPE = 1;

//新浪图片的HOST
@HostTypeChecker
public static final int NEWS_TYPE = 2;


/**
 * 替代枚举的方案,使用IntDef保证类型安全
 */
@IntDef({GANK_TYPE, NEWS_TYPE})
@Retention(RetentionPolicy.SOURCE)
public @interface HostTypeChecker { }

}

hostType这里的代码注解看的不是很懂,你用的是什么开源框架的,我先去看看

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xybCoder avatar xybCoder commented on June 18, 2024

不是第三方库,java注解

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tomridder avatar tomridder commented on June 18, 2024

@IntDef({GANK_TYPE, NEWS_TYPE}) 应该是int类型的枚举

@retention(RetentionPolicy.SOURCE)
public @interface HostTypeChecker { } 这个自定义注解是什么作用呢呢

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tomridder avatar tomridder commented on June 18, 2024

大兄弟 回答下我啊

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xybCoder avatar xybCoder commented on June 18, 2024

就是自定义注解替换枚举,其实你也可以单独定义final常量,可以不用我这种方式

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