java属性文件读取，属性修改

/**
* 属性文件读取
* @author bestmata
*
*/
public class CommUtil { private static Logger logger=Logger.getLogger(CommUtil.class); private Properties getAttionReplyPro(){
try {
InputStream in=CommUtil.class.getResourceAsStream("attionReply.properties");
Properties p=new Properties();
p.load(in);
in.close();
return p;
} catch (Exception e) {
logger.error(e);
}
return null; } //获取关注的标示
public String getAttionFlag(){
Properties p=getAttionReplyPro();
String attionFlag=p.getProperty("attionFlag");
return attionFlag;
} //设置attionFlag的值
public void setAttionFlag(String flag){
try {
Properties p=getAttionReplyPro();
p.setProperty("attionFlag", flag);
OutputStream out=new FileOutputStream(new File(CommUtil.class.getResource("attionReply.properties").toURI()));
p.store(out, "");
out.flush();
out.close();
} catch (Exception e) {
logger.error(e);
} } public static void main(String[] args) {
CommUtil a=new CommUtil();
a.setAttionFlag("fag4");
System.out.println(a.getAttionFlag()); }
}