java封装utils

最新推荐文章于 2021-05-18 11:55:07 发布

原创最新推荐文章于 2021-05-18 11:55:07 发布

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#封装 #java

1 写Utils类

import java.io.IOException;
import java.util.Properties;

public class Utils {
    public static Properties getProperty(String propName) {
        Properties properties = new Properties(); //空属性列表
        try {
            properties.load(Utils.class.getClassLoader().getResourceAsStream(propName));
        } catch (IOException e) {
            e.printStackTrace();
        }
        return properties;
    }
}

2

	private String uris =properties.getProperty("uris");
    private String username =properties.getProperty("username");
    private String password =properties.getProperty("password");

3 写xxx.properties文件

uris=xxxxx
username=yyyyy
password=zzzzzzz

或

Properties prop = new Properties();
 prop.setProperty("bootstrap.servers", "hadoop104:9092");
 prop.setProperty("group.id", "test");

或

configuration = HBaseConfiguration.create();
        Properties properties = PropertiesUtils.getProperty("xxx.properties");
        String hbaseMaster = properties.getProperty("hbase.master");
        configuration.set("hbase.master", hbaseMaster);