package com.boying.util;
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import com.boying.common.SystemConfigProperties;
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import com.boying.entity.FileInfo;
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import com.boying.entity.OrderRecord;
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import com.boying.service.FileInfoService;
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import com.boying.service.OrderRecordService;
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import lombok.AllArgsConstructor;
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import org.apache.commons.codec.binary.Base64;
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import org.springframework.stereotype.Component;
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import org.springframework.util.StringUtils;
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import org.springframework.web.multipart.MultipartFile;
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import sun.misc.BASE64Encoder;
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import java.io.*;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.util.Objects;
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import java.util.UUID;
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@Component
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@AllArgsConstructor
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public class FileUtil {
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private static SystemConfigProperties systemConfigProperties;
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private static FileInfoService fileInfoService;
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private static OrderRecordService orderRecordService;
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public static String saveFile(MultipartFile multipartFile){
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String filePath = systemConfigProperties.getFilePath();
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File file = null;
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if(multipartFile.getSize() <= 0){
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return null;
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}else {
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//文件原名称
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String originalFilename = multipartFile.getOriginalFilename();
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//文件格式
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String substring = Objects.requireNonNull(originalFilename).substring(originalFilename.lastIndexOf("."));
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//文件id
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String uuid = UUID.randomUUID().toString().trim().replaceAll("-", "");
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//文件路径
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file=new File(filePath+File.separator+uuid+substring);
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String absPath = null;
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try {
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absPath = file.getCanonicalPath();
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String substring1 = absPath.substring(0, absPath.lastIndexOf(File.separator));
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File file1 = new File(substring1);
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if(!file1.exists()){
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file1.mkdirs();
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}
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//写入
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InputStream inputStream = multipartFile.getInputStream();
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inputStreamToFile(inputStream,file);
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inputStream.close();
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}catch (IOException e){
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e.printStackTrace();
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}
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return absPath;
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}
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}
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public static void inputStreamToFile(InputStream inputStream,File file){
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try {
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OutputStream os = new FileOutputStream(file);
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int bytesRead = 0;
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byte[] buffer = new byte[8192];
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while ((bytesRead = inputStream.read(buffer,0,8192)) != -1){
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os.write(buffer,0,bytesRead);
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}
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os.close();
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inputStream.close();
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}catch (Exception e){
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e.printStackTrace();
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}
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}
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public static FileInfo generateBase64StringToFile(String fileString,int t,int type){
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String lastname= null;
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//文件id
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String uuid = UUID.randomUUID().toString().trim().replaceAll("-", "");
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if(t == 1){
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lastname=".png";
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}else {
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lastname=".pdf";
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}
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String filePath = "D:\\FFproject\\file\\";
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if(fileString == null){
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return null;
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}else {
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try {
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byte[] b = Base64.decodeBase64(fileString);
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for (int i = 0; i < b.length; ++i) {
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if(b[i]<0){
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b[i]+=256;
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}
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}
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OutputStream out = new FileOutputStream(filePath+uuid+lastname);
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out.write(b);
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FileInfo fileInfo = new FileInfo();
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fileInfo.setFileBaseDir(filePath);
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fileInfo.setFileName(uuid);
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fileInfo.setFileLast(lastname);
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fileInfo.setType(type);
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out.flush();
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out.close();
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return fileInfo;
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}catch (Exception e){
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e.printStackTrace();
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return null;
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}
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}
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}
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public static String netSourceToBase64(String srcUrl,String requestMethod) {
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ByteArrayOutputStream outPut = new ByteArrayOutputStream();
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byte[] data = new byte[1024 * 8];
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try {
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// 创建URL
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URL url = new URL(srcUrl);
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// 创建链接
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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conn.setRequestMethod(requestMethod);
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conn.setConnectTimeout(20000);
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if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
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//连接失败/链接失效/文件不存在
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return null;
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}
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InputStream inStream = conn.getInputStream();
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int len = -1;
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while (-1 != (len = inStream.read(data))) {
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outPut.write(data, 0, len);
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}
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inStream.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(outPut.toByteArray());
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}
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public static void main(String[] args) {
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String get = netSourceToBase64("http://36.134.129.218:9999/admin/sys-file/platform/20230815083801.png", "GET");
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System.out.println(get);
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}
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}
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