实体：标注@Component和@ConfigurationProperties，prefix：前缀是site的配置自动绑定到类中的属性，如果不写@Component，则需要在主启动程序上面加@EnableConfigurationProperties(SiteInfo.class)
package com.jay.SpringBootStudy8.utils;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
@Component
@ConfigurationProperties(prefix = "site")
public class SiteInfo {
@Override
public String toString() {
return "SiteInfo{" +
"domain=‘" + domain + ‘\‘‘ +
", copyright=‘" + copyright + ‘\‘‘ +
‘}‘;
}
private String domain;
private String copyright;
public String getDomain() {
return domain;
}
public void setDomain(String domain) {
this.domain = domain;
}
public String getCopyright() {
return copyright;
}
public void setCopyright(String copyright) {
this.copyright = copyright;
}
}
yml配置，properties是：site.domain=www.jay.com
site: domain: www.jay.com copyright: xxx@v1.1.1
使用
@Autowired
private SiteInfo siteInfo;
@Test
public void test3(){
System.out.println(siteInfo);
}
结果输出就是SiteInfo{domain=‘www.jay.com‘, copyright=‘xxx@v1.1.1‘}，属性值就自动绑定上了。