sprintboot @ConfigurationProperties注入复杂对象

本例子使用@configurationProperties注解注入maps对象

1.首先yml文件中配置信息

currency:
  link:
    maps: {USD: https://xxx.oss-ap-southeast-1.aliyuncs.com/reconciliation_sample.pdf,
           AED: https://xxx.oss-ap-southeast-1.aliyuncs.com/reconciliation_sample.pdf,
           BTC: https://btc.com/,
           ETH: https://etherscan.io/,
           LTC: https://live.blockcypher.com/ltc/,
           BCH: https://bch.btc.com/}
    defaults: '#'

2.定义实体类

/**
 * @Author: jinx
 * @Date: 2019-05-23 16:32
 * @Desc:
 */
@Component
@ConfigurationProperties(prefix = "currency.link")
@Data
public class Link {
    /**
     * currency:downloadLink
     */
    private Map maps;
    private String defaults;
}

3.使用的地方注入直接遍历该对象中的map集合

@Resource
private Link link;

private String getLink(Currency currency) {
        for (String s : link.getMaps().keySet()) {
            if (s.equals(currency.name)) {
                String result = link.getMaps().get(s);
                if (StringUtils.isNotBlank(result)) {
                    return result;
                }
            }
        }
        return link.getDefaults();
    }