Java逐行读写TXT文件

package help;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import java.util.Map;

public class TXTParseUtils {

private static final Integer ONE = 1;

public static void main(String[] args) {
Map<String, Integer> map = new HashMap<String, Integer>();

/* 读取数据 */
try {
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(new File("D:/报销.txt")),
"UTF-8"));
String lineTxt = null;
while ((lineTxt = br.readLine()) != null) {
String[] names = lineTxt.split(",");
for (String name : names) {
if (map.keySet().contains(name)) {
map.put(name, (map.get(name) + ONE));
} else {
map.put(name, ONE);
}
}
}
br.close();
} catch (Exception e) {
System.err.println("read errors :" + e);
}

/* 输出数据 */
try {
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File("D:/结果.txt")),
"UTF-8"));

for (String name : map.keySet()) {
bw.write(name + " " + map.get(name));
bw.newLine();
}
bw.close();
} catch (Exception e) {
System.err.println("write errors :" + e);
}
}
}