读取配置SpringBoot配置文件三种方式
一、利用Bean注解中的Value(${})注解
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@Data @Component public class ApplicationProperty { @Value ( "${application.name}" ) private String name; } |
该方式可以自动读取当前配置文件appliation.yml 或者application.properties中的配置值
区别在于读取yml文件时候支持中文编码,peoperties需要转码
二、利用@ConfigurationProperties(prefix = "developer")注解
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@Data @ConfigurationProperties (prefix = "developer" ) @Component public class DeveloperProperty { private String name; private String website; private String qq; private String phoneNumber; } |
该方式直接将当前加载yml配置文件前缀为developer的属性
读取developer.name...
pom文件中引入依赖
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< dependency > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-configuration-processor</ artifactId > < optional >true</ optional > </ dependency > |
三、前两种读取配置的使用方式
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//使用方法 private final ApplicationProperty applicationProperty; private final DeveloperProperty developerProperty; @Autowired public PropertyController(ApplicationProperty applicationProperty, DeveloperProperty developerProperty) { this .applicationProperty = applicationProperty; this .developerProperty = developerProperty; } @GetMapping ( "/property" ) public Dict index() { System.out.println( "name:" +applicationProperty.getName()); System.out.println( "version:" +applicationProperty.getVersion()); System.out.println( "DevName:" +applicationProperty.getDeveloperName()); } |
四、用Hutool的方式读取配置文件(不支持yml格式)
1.用Props的方式读取
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static Props props1 = new Props( "application.properties" ,CharsetUtil.CHARSET_UTF_8); |
2.用Setting的方法读取
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static Setting setting = new Setting( "application-dev.yml" , CharsetUtil.CHARSET_UTF_8, true ); |
3.将配置文件读取
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public class Constant { static Props props1 = new Props( "application.properties" ,CharsetUtil.CHARSET_UTF_8); static Setting setting = new Setting( "application-dev.properties" , CharsetUtil.CHARSET_UTF_8, true ); public static final String Name ; public static final String SettingName ; static { Name = props.getStr( "application.name" ); SettingName = setting.getByGroup( "name" , "application" ); } } |
4.使用方式
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System.out.println(Constant.DevName+ "------" +Constant.DevWebsite); |
直接用常量类调用该类属性即可使用
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原文链接:https://juejin.im/post/6873648875345805320