spring boot 怎么新建一个zip包

要在Spring Boot中创建Zip包，可以使用以下步骤：

1. 在pom.xml文件中添加以下依赖项：

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
   <groupId>org.apache.commons</groupId>
   <artifactId>commons-compress</artifactId>
   <version>1.20</version>
</dependency>

2. 创建一个类来处理Zip文件的创建和压缩：

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import org.springframework.stereotype.Service;

@Service
public class ZipService {

    public void createZipFile() throws IOException {
        String filename = "example.zip";
        File file = new File(filename);
        FileOutputStream fos = new FileOutputStream(file);
        ZipOutputStream zos = new ZipOutputStream(fos);
        
        // add files to the zip file
        addToZipFile("file1.txt", zos);
        addToZipFile("file2.txt", zos);
        
        zos.close();
        fos.close();
    }
    
    private void addToZipFile(String fileName, ZipOutputStream zos) throws IOException {
        File file = new File(fileName);
        ZipEntry zipEntry = new ZipEntry(file.getName());
        zos.putNextEntry(zipEntry);
        
        // write the file to the zip output stream
        // ...
        
        zos.closeEntry();
    }
}

3. 在Spring Boot应用程序中使用ZipService类：

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;

@SpringBootApplication
public class MyApplication {

    public static void main(String[] args) throws Exception {
        ConfigurableApplicationContext context = SpringApplication.run(MyApplication.class, args);
        ZipService zipService = context.getBean(ZipService.class);
        zipService.createZipFile();
    }
}

这将创建一个名为example.zip的Zip文件，其中包含名为file1.txt和file2.txt的两个文件。您可以根据需要更改文件名和文件内容。