order manage

Fancy

2024-08-20 b32dba6d0c069e4d1a416358501b441865714ab3

 pms-parent/pms-global/src/main/java/com/dy/pmsGlobal/util/QrCodeUtil.java

@@ -11,8 +11,7 @@
import org.springframework.core.io.ClassPathResource;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.*;
import java.net.URLEncoder;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
@@ -32,8 +31,22 @@
    public static byte[] genQrCode(String code) throws IOException, WriterException {
        File logoFile = logoCache.computeIfAbsent(LOGO_PATH, key -> {
            try {
                // 使用ClassPathResource获取资源的输入流
                ClassPathResource resource = new ClassPathResource(key);
                return resource.getFile();
                // 创建一个临时文件来保存资源内容(避免处理嵌套jar文件时找不到文件)
                File tempFile = File.createTempFile("logo", ".png");
                try (InputStream in = resource.getInputStream();
                     OutputStream out = new FileOutputStream(tempFile)) {
                    // 从输入流复制到临时文件
                    byte[] buffer = new byte[1024];
                    int bytesRead;
                    while ((bytesRead = in.read(buffer)) != -1) {
                        out.write(buffer, 0, bytesRead);
                    }
                    // 返回临时文件
                    tempFile.deleteOnExit(); // 自动删除临时文件（当JVM退出时）
                    return tempFile;
                }
            } catch (IOException e) {
                throw new RuntimeException("加载Logo图片失败", e);
            }