java读取全局properties属性文件并解决中文乱码问题

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import org.apache.log4j.Logger;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Properties;

public class Config {

    private static Logger logger = Logger.getLogger(Config.class);

    public class Key {
        public static final String SmsPattern = "sms.pattern";
    }

    public Config(){}
    private static Properties props = new Properties();
    static{
        try {
            InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream("../config.properties");
            BufferedReader bf = new BufferedReader(new InputStreamReader(inputStream));
            props.load(bf);
            logger.info("config load success.");
        } catch (IOException e) {
            logger.fatal(e);
        }
    }
    public static String getValue(String key){
        return props.getProperty(key);
    }
}