Question: Provide the idea of uploading the folder in HTML to the designated folder of the server
: zip the level file into a zip package, upload it to the server, and decompress it to the designated folder
Project dependencies
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-compress</artifactId>
<version>1.18</version>
</dependency>
Code
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.compress.archivers.ArchiveEntry;
import org.apache.commons.compress.archivers.ArchiveInputStream;
import org.apache.commons.compress.archivers.ArchiveOutputStream;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream;
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import java.io.*;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.Objects;
/**
* @author Czw
* @Description 管理员Controller
* @Date 2019/4/17 0017 下午 3:01
*/
@Slf4j
@RestController
public class ArchiveController {
@PostMapping("/archive")
public String archive(MultipartFile file) {
try {
String path = "/opt/nginx/html/u3d/catalog1";
unzip(file.getInputStream(), path);
log.info("***解压缩完成***");
} catch (IOException e) {
log.error("***解压压缩包出错***");
e.printStackTrace();
}
return "success";
}
/**
* 压缩文件夹到指定输出流中，可以是本地文件输出流，也可以是web响应下载流
*
* @param srcDir 源文件夹
* @param outputStream 压缩后文件的输出流
* @throws IOException IO异常，抛出给调用者处理
* @auther CZW
*/
public static void zip(String srcDir, OutputStream outputStream) throws IOException {
try (
BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(outputStream);
ArchiveOutputStream out = new ZipArchiveOutputStream(bufferedOutputStream);
) {
Path start = Paths.get(srcDir);
Files.walkFileTree(start, new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
ArchiveEntry entry = new ZipArchiveEntry(dir.toFile(), start.relativize(dir).toString());
out.putArchiveEntry(entry);
out.closeArchiveEntry();
return super.preVisitDirectory(dir, attrs);
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
try (
InputStream input = new FileInputStream(file.toFile())
) {
ArchiveEntry entry = new ZipArchiveEntry(file.toFile(), start.relativize(file).toString());
out.putArchiveEntry(entry);
IOUtils.copy(input, out);
out.closeArchiveEntry();
}
return super.visitFile(file, attrs);
}
});
}
}
/**
* 解压zip文件到指定文件夹
*
* @param zipFileName 源zip文件路径
* @param destDir 解压后输出路径
* @throws IOException IO异常，抛出给调用者处理
* @auther CZW
*/
public static void unzip(String zipFileName, String destDir) throws IOException {
try (
InputStream inputStream = new FileInputStream(zipFileName);
) {
unzip(inputStream, destDir);
}
}
/**
* 从输入流中获取zip文件，并解压到指定文件夹
*
* @param inputStream zip文件输入流，可以是本地文件输入流，也可以是web请求上传流
* @param destDir 解压后输出路径
* @throws IOException IO异常，抛出给调用者处理
* @auther CZW
*/
public static void unzip(InputStream inputStream, String destDir) throws IOException {
try (
BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);
ArchiveInputStream in = new ZipArchiveInputStream(bufferedInputStream);
) {
ArchiveEntry entry;
while (Objects.nonNull(entry = in.getNextEntry())) {
if (in.canReadEntryData(entry)) {
File file = Paths.get(destDir, entry.getName()).toFile();
if (entry.isDirectory()) {
if (!file.exists()) {
file.mkdirs();
}
} else {
try (
OutputStream out = new FileOutputStream(file);
) {
IOUtils.copy(in, out);
}
}
} else {
System.out.println(entry.getName());
}
}
}
}
}
Test Results
Use postman to test the import. The results are as follows
. After the upload is complete, you can see that there are indeed uncompressed files in the server directory.
Never forget the original intention