SpringBoot中读取application.properties配置文件的方法
Knight_AL 人气:0application.properties有以下这几条数据
方法一:@Value注解+@Component
建议properties少的时候用,多的时候就不要使用这种方法了
import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class UserController { @Value("${wx.open.app_id}") private String appid; @Value("${wx.open.app_secret}") private String secret; @Value("${wx.open.redirect_url}") private String url; @RequestMapping("hello") public String test(){ return appid+"---"+secret+"---"+url; } }
另一种方法
创建一个WeProperties
@Component @Data public class WeProperties { @Value("${wx.open.app_id}") private String appid; @Value("${wx.open.app_secret}") private String secret; @Value("${wx.open.redirect_url}") private String url; }
Controller层
@RestController public class UserController { @Autowired private WeProperties properties; @RequestMapping("hello") public String test(){ return properties.getAppid()+"---"+properties.getSecret()+"---"+properties.getUrl(); } }
方法二:@Component+@ConfigurationProperties
创建一个WeProperties
后面的属性名一定要保持一致
@Component @ConfigurationProperties(prefix = "wx.open") @Data public class WeProperties { private String appid; private String app_secret; private String redirect_url; }
Controller层
@RestController public class UserController { @Autowired private WeProperties properties; @RequestMapping("hello") public String test(){ return properties.getAppid()+"---"+properties.getApp_secret()+"---"+properties.getRedirect_url(); } }
方法三:@ConfigurationProperties+@EnableConfigurationProperties
创建一个WeProperties
后面的属性名一定要保持一致
@ConfigurationProperties(prefix = "wx.open") @Data public class WeProperties { private String appid; private String app_secret; private String redirect_url; }
启动类添加@EnableConfigurationProperties
@SpringBootApplication @EnableConfigurationProperties(value = WeProperties.class) public class PropertiesApplication { public static void main(String[] args) { SpringApplication.run(PropertiesApplication.class,args); } }
Controller层
@RestController public class UserController { @Autowired private WeProperties properties; @RequestMapping("hello") public String test(){ return properties.getAppid()+"---"+properties.getApp_secret()+"---"+properties.getRedirect_url(); } }
加载全部内容