Spring @Value 注入List和Map LoWang

Spring @Value 注入List和Map

EL表达式+JSON写法

• .java

@Value("#{'${scio.cloud.list}'.split(',')}") private List<String> list; @Value("#{${scio.cloud.maps}}") private Map<String,String> maps; 

• .yml

scio.cloud.list: topic1,topic2,topic3 scio.cloud.maps: "{key1: 'value1', key2: 'value2'}" 

yml常规写法

• .yml

scio: cloud list: - topic1 - topic2 - topic3 scio: cloud: maps: key1: 'value1' key2: 'value2' 

或者

scio: cloud list: - topic1 - topic2 - topic3 scio.cloud.maps[key1]: 'value1' scio.cloud.maps[key2]: 'value2' 

• .java

@EnableConfigurationProperties @Configuration @ConfigurationProperties(prefix = "scio.cloud") publci class ScioCloudConfig{ private List<String> list; private Map<String,String> maps; public void setList(List<String> list){ this.list = list; } public void setMaps(Map<String,String> maps){ this.maps = maps; } } 

重点重点

使用了@ConfigurationProperties需要对属性写setter方法。

链接：https://www.jianshu.com/p/1aa662a5f170