Java读TXT文件

/**读文件
* @param path
* @return
* @throws IOException
*/
public static Map readTxtFile(String filename){
String read;
String readStr ="";
BufferedReader bufread;
FileReader fileread;
Map map = new HashMap();
try {
fileread = new FileReader(filename);
bufread = new BufferedReader(fileread);
try {
while ((read = bufread.readLine()) != null) {
readStr = readStr + read+ "\r\n";
}
System.out.println(readStr);
String[] str = readStr.split("\r\n");
for(int i=0;i<str.length;i++)
{
String policyDetail = str[i];
policyDetail = policyDetail == null ? "" : policyDetail.trim();
String[] billDatil = policyDetail.split("\\^");
String orderNum = "";
String baifei = "";
orderNum = billDatil[2];
orderNum = orderNum == null ? "" : orderNum.trim();
System.out.println(orderNum);
String fee = billDatil[6];
fee = fee == null ? "" : fee.trim();
if(!fee.equals(""))
{
baifei = (Integer.parseInt(fee)/100)+"";
}
System.out.println(baifei);
if(!orderNum.equals("") && !baifei.equals(""))
{
map.put(orderNum, baifei);
}

}
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
return map;
}