package com.nova.sankuai.domain.api.yinsheng;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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/**
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* @类名称：TextFileHelper
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* @类描述：读取文件
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* @作者：zhanggy
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* @日期：2021年8月11日
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*/
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public final class TextFileHelper {
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private TextFileHelper() {
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}
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/**
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* 读文件
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* @param file 文件路径
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* @return 文件内容
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*/
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public static byte[] readFile(String file) throws IOException {
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int offset = 0;
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try (FileInputStream in = new FileInputStream(file)) {
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byte[] out = new byte[in.available()];
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if (out.length < offset + in.available()) {
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throw new IOException("Illegal Argument: filepath");
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}
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byte[] buffer = new byte[1024];
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int numRead;
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while ((numRead = in.read(buffer, 0, buffer.length)) >= 0) {
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System.arraycopy(buffer, 0, out, offset, numRead);
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offset += numRead;
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}
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return out;
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}
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}
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/**
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* 写文件
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*/
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public static void writeFile(String filePath, byte[] data) throws IOException {
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try (FileOutputStream out = new FileOutputStream(filePath)) {
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out.write(data, 0, data.length);
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}
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}
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}
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