在resources目录下配置了application.properties文件,其中:
spring.data.mongodb.uri=mongodb://
每次启动时,都会报错:
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.data.mongodb.uri' in value "${spring.data.mongodb.uri}"
但是之前是可以启动的,代码片段:
@Configuration
public class MongoDataSourceConfiguration {
@Value("${spring.data.mongodb.uri}")
private String uri;
...to do something...
}
请问如何解决呢?