使用命令行参数设置application.properties

时间:2019-05-02 09:12:51

标签: spring-boot

我正在尝试设置文件application.properties从命令行传递参数。我不是Spring Boot的专家,我已经阅读了一些有关此问题的文章和文章,但是没有什么有用的。

我正在从STS运行配置传递参数。我向应用程序传递了两个参数: --spring.datasource.url = jdbc:oracle:thin:@SERVERNAME:PORT:DB11G --spring.datasource.username = DBUSERNAME

@SpringBootApplication(scanBasePackages={"io.swagger.client","com.ids.app.controller","com.ids.app.service"})
@ConfigurationProperties("application.properties")

public class IdsFeApplication implements CommandLineRunner{



    private static final String FEC_CODEX = "A";

    @Autowired
    private static ConfigInfoDB infoDb;

    @Autowired
    private Login fec;




    public static void main(String[] args) {


        SpringApplication.run(IdsFeApplication.class, args);        

    }

    @Override
    public void run(String... args) throws Exception {

         infoDb.dbInfo();

    fec.token(FEC_CODEX);


    }

}

@Controller
@PropertySource(value = { "classpath:application.properties" })

public class ConfigInfoDB {

   @Value(value = "${spring.datasource.url}")
    private String dbConn;

    @Value(value = "${spring.datasource.username}")
    private String dbUser;




    public void dbInfo() {
        System.out.println("dbConn " +dbConn);
        System.out.println(" dbUser "+dbUser);
    }
}

这是我的application.properties

spring.datasource.url = Anonymous
spring.datasource.driver.class=oracle.jdbc.driver.OracleDriver
spring.datasource.username = Anonymous

我希望使用从命令行传递的url和username参数设置application.properties,并使用它们来连接数据库。如果我在application.properties中使用静态参数,我的应用程序将运行良好。

STS Configuration Run

@SpringBootApplication(scanBasePackages={"io.swagger.client","com.ids.app.controller","com.ids.app.service"})

public class IdsFeApplication implements ApplicationRunner{



    private static final String FEC_CODEX = "A";

    @Autowired
    private static ConfigInfoDB infoDb;

    @Autowired
    private Login fec;




    public static void main(String... args) throws Exception {

        SpringApplication.run(IdsFeApplication.class, args);        

    }


    @Override
    public void run(ApplicationArguments args) throws Exception {

        fec.token(FEC_CODEX);
    }

@Controller
public class ConfigInfoDB {

   @Value(value = "${spring.datasource.url}")
    private String dbConn;

    @Value(value = "${spring.datasource.username}")
    private String dbUser;




    public void dbInfo() {
        System.out.println("dbConn " +dbConn);
        System.out.println(" dbUser "+dbUser);
    }
}

1 个答案:

答案 0 :(得分:0)

我测试了code,它对我有用,因此我将发布代码段。

这是我的属性文件:

person.name=anonymous

现在是主要班级:

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

控制器看起来像:

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @Value("${person.name}")
    private String name;

    @GetMapping
    public String hello() {
        return "Hello, " + name + "!";
    }
}

如果您使用mvn clean install构建应用程序,则可以使用以下命令执行jar存档:

java -jar demo-0.0.1-SNAPSHOT.jar --person.name=flaxel

最后,您可以浏览到以下URL:http://localhost:8080/