Java獲取application.properties配置參數

import 對應的 package

import java.util.Properties;

import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PropertiesLoaderUtils;

//從application.properties文件中獲取用到的參數;
Resource resource = new ClassPathResource("application.properties");
Properties props = PropertiesLoaderUtils.loadProperties(resource);
String host = props.getProperty("mail.host");
int port = Integer.parseInt(props.getProperty("mail.port")); 

轉載：https://blog.csdn.net/wk1063645973/article/details/98880901