我有以下配置类:
@Configuration
@PropertySource(name = "props", value = "classpath:/app-config.properties")
@ComponentScan("service")
public class AppConfig {
我有属性(property)服务:
@Component
public class SomeService {
@Value("#{props['some.property']}") private String someProperty;
当我想测试 AppConfig 配置类时收到错误
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'someService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private java.lang.String service.SomeService.someProperty; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Field or property 'props' cannot be found on object of type 'org.springframework.beans.factory.config.BeanExpressionContext'
记录了该问题 in SPR-8539
但无论如何我不知道如何配置 PropertySourcesPlaceholderConfigurer 以使其工作。
编辑 1
这种方法适用于 xml 配置
<util:properties id="props" location="classpath:/app-config.properties" />
但我想使用java进行配置。
最佳答案
正如@cwash 所说;
@Configuration
@PropertySource("classpath:/test-config.properties")
public class TestConfig {
@Value("${name}")
public String name;
//You need this
@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
}
关于spring - 使用 @PropertySource 注释时未解析 @Value。如何配置 PropertySourcesPlaceholderConfigurer?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13728000/