优雅写代码三原创

# 怎么更好的避免if else 语句？

# 实现 InitializingBean 接口

# 创建业务枚举


public enum BizTypeEnum {
PRODUCT(1, "商品"),
SHOP(2, "店铺"),
CONTENT(3, "内容");

    private Integer type;
    private String desc;

    private BizTypeEnum(Integer type, String desc) {
        this.type = type;
        this.desc = desc;
    }

    public static BizTypeEnum indexOf(Integer type) {
        BizTypeEnum[] var1 = values();
        int var2 = var1.length;

        for(int var3 = 0; var3 < var2; ++var3) {
            BizTypeEnum item = var1[var3];
            if (item.getType().equals(type)) {
                return item;
            }
        }

        return null;
    }

    public Integer getType() {
        return this.type;
    }

    public String getDesc() {
        return this.desc;
    }
}

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# 创建业务缓存

    /**
     * 关注写操作服务 关注
     */
    private final Map<BizTypeEnum, Function<FollowCollectRequest, BaseResult>> FOLLOW_WRITE_FUNCTION_MAP = new HashMap<>();

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# 重写 afterPropertiesSet

    @Override
    public void afterPropertiesSet() throws Exception {
        this.FOLLOW_WRITE_FUNCTION_MAP.put(BizTypeEnum.PRODUCT, (request) -> this.followProductCollectWriteApi.follow(request));
        this.FOLLOW_WRITE_FUNCTION_MAP.put(BizTypeEnum.SHOP, (request) -> this.followShopCollectWriteApi.follow(request));
        this.UN_FOLLOW_WRITE_FUNCTION_MAP.put(BizTypeEnum.PRODUCT, (request) -> this.followShopCollectWriteApi.unfollow(request));
        this.UN_FOLLOW_WRITE_FUNCTION_MAP.put(BizTypeEnum.SHOP, (request) -> this.followShopCollectWriteApi.unfollow(request));
    }

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# 使用

/**
 * 获取结果
 */
private BaseResult getResult(FollowCollectRequest request) {
    return this.FOLLOW_WRITE_FUNCTION_MAP.get(request.getBizType()).apply(request);
}

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编辑

上次更新: 2022/05/01, 19:42:49

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