SpringBoot中读取application.properties配置文件的方法

application.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.springframewor开发者_Python入门k.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;
  android  }
}

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编程 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 dJgiuJtclass 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 Strjavascripting 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")
    publiphpc String test(){
        return properties.getAppid()+"---"+properties.getApp_secret()+"---"+properties.getRedirect_url();
    }
}

到此这篇关于SpringBoot中读取application.properties配置文件的方法的文章就介绍到这了,更多相关SpringBoot读取application.properties内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们！