我有一个基本的SpringBoot 2.0.5.RELEASE应用程序。使用Spring Initializer,JPA,嵌入式Tomcat,Thymeleaf模板引擎并将其打包为可执行JAR文件。
我已经创建了此服务:
@Service
public class WeatherService {
@Value(“${weather.url}")
public static String WEATHER_URL;
static Double temperature;
static {
temperature = new RestTemplate().getForEntity(WEATHER_URL, Double.class).getBody();
}
..
}
但是当我启动应用程序时。我收到此错误:
Caused by: java.lang.IllegalArgumentException: URI is not absolute
at java.net.URI.toURL(URI.java:1088)
at org.springframework.http.client.SimpleClientHttpRequestFactory.createRequest(SimpleClientHttpRequestFactory.java:145)
at org.springframework.http.client.support.HttpAccessor.createRequest(HttpAccessor.java:87)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:683)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:644)
at org.springframework.web.client.RestTemplate.getForEntity(RestTemplate.java:323)
at com.tdk.backend.service.WeatherService.<clinit>(WeatherService.java:54)
... 84 common frames omitted
答案 0 :(得分:2)
您不能将值注入静态变量。
尝试更改为此:
.id