介绍 package test4;
,
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
,
public class ExplaceSql {
public static void main (String [], args), {
,String filePath =, ExplaceSql.class.getResource (“;”) .getPath () +“aaa.txt",,//,文件路径
,阅读(filePath);
}/* *
,*读取内容
,*/public static String 阅读(String filePath) {
BufferedReader br =,空;
String line =零;//StringBuffer buf =, new StringBuffer ();
try {//根据文件路径创建缓冲输入流
时间=br new BufferedReader (new FileReader (filePath));//filePath中是aaa.txt文件
String str =,““//循环读取文件的每一行,对需要修改的行进行修改,放入缓冲对象中
,while ((line =, br.readLine ()), !=, null), {
,//设置正则将多余空格都转为一个空格
,str=线+“\ r \ n";
,String [] dictionary =, str.split (“\ \ s {2,} | \ t");
,(int 我=0;i package 帮助;
,
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<才能,字符串,Integer>, map =, new HashMap<字符串,,Integer> ();
,/*,才能读取数据,*/try {才能
,,BufferedReader br =, new BufferedReader (new InputStreamReader (new FileInputStream (new 文件(“D:/报销.txt")),
,,,,,,,,,,,,,,,,,,“UTF-8"));
,,String lineTxt =,空;
,,while ((=lineTxt br.readLine ()), !=, null), {
,,,String [], names =, lineTxt.split (“”);
,,,for (String name :名称),{
,,,,if (map.keySet () .contains(名字)),{
,,,,,map.put(名字,,(map.get(名字),+,));
,,,,},{else
,,,,,map.put(名字,,一个);
,,,,}
,,,}
,,}
,,br.close ();
,,},catch (Exception e), {
,,System.err.println (“read errors :“, +, e);
,,}
,/*,才能输出数据,*/try {才能
,,BufferedWriter bw =, new BufferedWriter (new OutputStreamWriter (new FileOutputStream (new 文件(“D:/结果.txt")),
,,,,,,,,,,,,,,,,,,“UTF-8"));
,
,,for (String name : map.keySet ()), {
,,,bw.write(时间+ name “,“, +, map.get(名字));
,,,bw.newLine ();
,,}
,,bw.close ();
,,},catch (Exception e), {
,,System.err.println (“write errors :“, +, e);
,,}
,}
}
小编给大家分享一下如何使用java实现读取txt文件并以在每行以空格取数据,希望大家阅读完这篇文章之后都有所收获、下面让我们一起去探讨吧!
<强>简单一个例子。其中正则是取消多余空格或者tab键
<强> java逐行读写txt文件
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