Question

@Component
public class Bot extends TelegramLongPollingBot {  

  @Value("${camel.component.telegram.authorization-token}") //properties
     private String botToken;  //null


            TelegramBot bot = TelegramBotAdapter.buildDebug(botToken);

  .
  .
  .
}

我不明白为什么不注入属性中定义的参数值。

Answer 1

请注意，@ Value不支持轻松绑定，因此请检查您的媒体资源。

Answer 2

    @Component
    @PropertySource("file:${app_env_path}/${app_env}_DBconnection.properties")
    public class DBProperties {

        @Value("${driver.class.name}")
        private String driverClassName;

        @Value("${db.url}")
        private String url;

        @Value("${db.username}")
        private String username;

        @Value("${db.password}")
        private String password;

        @Value("${db.poolsize}")
        private String poolsize;

        //setters and getters  
    }


Property file - 
driver.class.name=oracle.jdbc.OracleDriver
db.url=
db.username=
db.password=
db.poolsize=100

app_env_path =文件所在位置的路径 app_env = SIT / PROD

用@Value注释的属性始终为null

2 个答案: