Spring Boot从application.yml注入映射列表

Question

我试图从Spring Boot配置注入映射列表，但得到了一个空列表。如何正确注入？

cacheConfigs:
- cacheOne:
test: test1
- cacheTwo:
test: test2
- cacheThree:
test: test3
- cacheFor:
test: test4

@ConfigurationProperties(prefix = "cacheConfigs")
public List<Map<String, String>> getCacheConfigs() {
return new ArrayList<>();
}

Answer 1

这是一个；新的"；对我来说。我通过将cacheConfigs更深一层来实现这一点，并使用新的顶级名称作为@ConfigurationProperties参数。像这样：

cache-configs-map:
cacheConfigs: 
- cacheOne:
test: test1
- cacheTwo:
test: test2
- cacheThree:
test: test3
- cacheFor:
test: test4

现在，您的配置类如下：

@Configuration
public class Config{
@NoArgsConstructor @AllArgsConstructor( staticName = "of" )
@Getter @Setter
public static class C{
private List<Map<String, String>> cacheConfigs;
}

@Bean
@ConfigurationProperties(prefix = "cache-configs-map")
public C getC() {
return new C();
}
}