java读取txt文件

源码：

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("111.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("final.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);

  }

 }

}

测试数据：

文苏洋,闫少翀,孟超
张育铭,王洪展
程浩男,路佳琦
罗天实,wsy,ysc,mc,zym
whz,ljq,lts
chn

运行结果：

闫少翀 1
罗天实 1
ysc 1
whz 1
chn 1
王洪展 1
lts 1
孟超 1
文苏洋 1
张育铭 1
程浩男 1
zym 1
ljq 1
mc 1
路佳琦 1
wsy 1