springboot ftp推送

要在Spring Boot中实现FTP推送，你需要使用一个FTP客户端库，如Apache Commons Net或Spring Integration FTP。下面是一个使用Apache Commons Net的示例代码：

1. 首先，在你的Maven或Gradle项目中添加Apache Commons Net的依赖：

Maven:

<dependency>
    <groupId>commons-net</groupId>
    <artifactId>commons-net</artifactId>
    <version>3.6</version>
</dependency>

Gradle:

compile group: 'commons-net', name: 'commons-net', version: '3.6'

2. 创建一个FTP客户端类，用于连接FTP服务器和上传文件：

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

@Component
public class FtpClient {
    
    @Value("${ftp.server}")
    private String server;
    
    @Value("${ftp.port}")
    private int port;
    
    @Value("${ftp.username}")
    private String username;
    
    @Value("${ftp.password}")
    private String password;
    
    public void uploadFile(File file, String remoteDir) throws IOException {
        FTPClient ftpClient = new FTPClient();
        try {
            ftpClient.connect(server, port);
            ftpClient.login(username, password);
            ftpClient.enterLocalPassiveMode();
            ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
            
            String remoteFile = remoteDir + "/" + file.getName();
            FileInputStream inputStream = new FileInputStream(file);
            
            boolean uploaded = ftpClient.storeFile(remoteFile, inputStream);
            if (uploaded) {
                System.out.println("File uploaded successfully.");
            } else {
                System.out.println("File upload failed.");
            }
        } finally {
            ftpClient.logout();
            ftpClient.disconnect();
        }
    }
}

3. 在你的应用程序中使用FtpClient类来上传文件：

@Autowired
private FtpClient ftpClient;

public void pushFileToFTP() {
    File file = new File("path/to/local/file");
    String remoteDir = "/path/to/remote/directory";
    try {
        ftpClient.uploadFile(file, remoteDir);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

这样，你就可以在Spring Boot应用程序中使用FTP客户端库来实现文件推送到FTP服务器。