去除文本中重复的行方法

public List splitrows(String rows){

List rowlist=new ArrayList<String>();

String[] row= rows.split("\r\n");

Map map=new HashMap();

for(int i=0;i<row.length;i++){

if(!map.containsKey(row[i])){

rowlist.add(row[i]);

map.put(row[i],"1");

}

}

return rowlist;

}