package com.hx.util;
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import sun.misc.BASE64Decoder;
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import sun.misc.BASE64Encoder;
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import java.io.*;
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/**
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* 图片和base64字符转换工具
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* @USER: fhx
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* @DATE: 2023/4/6
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**/
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public class ImageBase64Util {
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/**
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* base64字符串转化成图片
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* @param base64
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* @param fileName
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* @param filePath
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* @return
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* @throws Exception
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*/
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public static File base64ToFile(String base64, String fileName, String filePath) throws Exception {
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if(base64.contains("data:image")){
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base64 = base64.substring(base64.indexOf(",")+1);
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}
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base64 = base64.replace("\r\n", "");
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//创建文件目录
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File file = File.createTempFile(base64, fileName, new File(filePath));
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BufferedOutputStream bos = null;
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FileOutputStream fos = null;
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try {
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BASE64Decoder decoder = new BASE64Decoder();
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byte[] bytes = decoder.decodeBuffer(base64);
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fos = new FileOutputStream(file);
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bos = new BufferedOutputStream(fos);
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bos.write(bytes);
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}finally {
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if (bos != null) {
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try {
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bos.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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if (fos != null) {
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try {
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fos.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return file;
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}
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/**
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* 图片转化成base64字符串
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* @param imgFile
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* @return
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*/
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public static String GetImageStr(File imgFile) {//将图片文件转化为字节数组字符串，并对其进行Base64编码处理
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InputStream in = null;
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byte[] data = null;
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//读取图片字节数组
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try {
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in = new FileInputStream(imgFile);
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data = new byte[in.available()];
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in.read(data);
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in.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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//对字节数组Base64编码
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BASE64Encoder encoder = new BASE64Encoder();
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return encoder.encode(data);//返回Base64编码过的字节数组字符串
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}
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}
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