key words : 熱部署 動(dòng)態(tài)讀取配置文件 動(dòng)態(tài)讀取properties文件
come from
herepackage?com.javaeye.util;
import?java.io.File;
import?java.io.FileInputStream;
import?java.io.IOException;
import?java.net.URL;
import?java.util.Properties;
/**
*?@author?Robbin?Fan
*?
*/
public?class?ConfigUtil?{
????private?static?Properties?props?=?null;???
????private?static?File?configFile?=?null;
????private?static?long?fileLastModified?=?0L;
???
????private?static?void?init()?{
????????URL?url?=?ConfigUtil.class.getClassLoader().getResource("global.properties");
????????configFile?=?new?File(url.getFile());
????????fileLastModified?=?configFile.lastModified();?????
????????props?=?new?Properties();
????????load();
????}
???
????private?static?void?load()?{
????????try?{
????????????props.load(new?FileInputStream(configFile));
????????????fileLastModified?=?configFile.lastModified();
????????}?catch?(IOException?e)?{???????????
????????????throw?new?RuntimeException(e);
????????}
????}
????public?static?String?getConfig(String?key)?{
????????if?((configFile?==?null)?||?(props?==?null))?init();
????????if?(configFile.lastModified()?>?fileLastModified)?load();
????????return?props.getProperty(key);
????}
}