package com.horizon.util;import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.io.RandomAccessFile;public class TxtFile {    /**     * 写入文本文件.     * @param file_path     * @param content     * @throws IOException     */    public void write(String file_path, String content) throws IOException {        File file = new File(file_path);        if (!file.exists()) {            file.createNewFile();        }        String filein = content;        RandomAccessFile mm = null;        try {            // 清空内容            FileWriter fw = new FileWriter(file);            fw.write("");            fw.close();            // 写入内容            mm = new RandomAccessFile(file, "rw");            mm.write(filein.getBytes("UTF-8"));//防止写入的中文内容为乱码        } catch (IOException e1) {            throw e1;        } finally {            if (mm != null) {                try {                    mm.close();                } catch (IOException e2) {                    e2.printStackTrace();                }            }        }    }    /**     * 读取文本文件.     * @throws IOException      */    public static String readTxtFile(String file_path) throws IOException {        String read = null;        FileReader fileread = null;        BufferedReader bufread = null;        String readStr = "";        try {            File filename = new File(file_path);            fileread = new FileReader(filename);            bufread = new BufferedReader(fileread);            while ((read = bufread.readLine()) != null) {                readStr = readStr + read + "\r\n";            }        } catch (FileNotFoundException e) {            throw e;        }        return readStr;    }    // 测试    @SuppressWarnings("static-access")    public static void main(String[] args) {        try {            String file_path = "D:/test.txt";            TxtFile txtFile = new TxtFile();            txtFile.write( file_path, "this is horizon's ceshi!!!");            System.out.println(txtFile.readTxtFile(file_path));        } catch (IOException e) {            e.printStackTrace();        }    }}