指定编码写入和读取文件内容 java按指定编码写入和读取文件内容的类分享

时间:2021-03-19 人气:1

想了解java按指定编码写入和读取文件内容的类讲解的相关内容吗，在本文为您仔细讲解指定编码写入和读取文件内容的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：java,指定编码,文件读取，下面大家一起来学习吧。

可以指定编码如：utf-8来写入和读取文件。如果文件编码未知，可以通过该方法先得到文件的编码后再指定正确的编码来读取，否则会出现文件乱码问题。

package com.zuidaima.util;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class ReadWriteFileWithEncode {

public static void write(String path, String content, String encoding)
   throws IOException {
  File file = new File(path);
  file.delete();
  file.createNewFile();
  BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(
    new FileOutputStream(file), encoding));
  writer.write(content);
  writer.close();
}

public static String read(String path, String encoding) throws IOException {
  String content = "";
  File file = new File(path);
  BufferedReader reader = new BufferedReader(new InputStreamReader(
    new FileInputStream(file), encoding));
  String line = null;
  while ((line = reader.readLine()) != null) {
   content += line + "\n";
  }
  reader.close();
  return content;
}

public static void main(String[] args) throws IOException {
  String content = "中文内容";
  String path = "c:/test.txt";
  String encoding = "utf-8";
  ReadWriteFileWithEncode.write(path, content, encoding);
  System.out.println(ReadWriteFileWithEncode.read(path, encoding));
}
}

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