java按指定編碼寫入和讀取文件內容的類分享

可以指定編碼如：utf-8來寫入和讀取文件。如果文件編碼未知，可以通過該方法先得到文件的編碼後再指定正確的編碼來讀取，否則會出現文件亂碼問題。

如何識別文件編碼請參考：java自動根據文件內容的編碼來讀取避免亂碼

複製代碼代碼如下:

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 = "中文內容";

String path = "c:/test.txt";

String encoding = "utf-8";

ReadWriteFileWithEncode.write(path, content, encoding);

System.out.println(ReadWriteFileWithEncode.read(path, encoding));

}

}