Java操作FTP,从FTP上读取指定文件,把指定文件上传到FTP

发表于 | 分类于 |

添加依赖

1
2
3
4
5
6
<!-- https://mvnrepository.com/artifact/commons-net/commons-net -->
<dependency>
    <groupId>commons-net</groupId>
    <artifactId>commons-net</artifactId>
    <version>3.3</version>
</dependency>

读取FTP中的文件

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
public static void main(String[] args) throws Exception
{
    FTPClient ftpClient=new FTPClient();//import org.apache.commons.net.ftp.FTPClient;
    ftpClient.connect("10.18.20.147", 21);//连接ftp
    ftpClient.login("tyz_ftp", "tc_xw_ftp");//登陆ftp
    if (FTPReply.isPositiveCompletion(ftpClient.getReplyCode()))//是否连接成功,成功true,失败false
    {
        ftpClient.changeWorkingDirectory("/var/ftp/home/tyzf_ftp/batchUpload");//找到指定目录

        InputStream inputStream=ftpClient.retrieveFileStream("20190708SC.csv");//根据指定名称获取指定文件
        BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(inputStream,"GBK"));
        String line=null;
        StringBuilder stringBuilder=new StringBuilder(150);
        while ((line = bufferedReader.readLine()) != null)
        {
            stringBuilder.append(line + "\n");
        }
        String context=stringBuilder.toString();

        String[] sz = context.replaceAll("\"","").split("\n");
        for (int i = 0; i < sz.length; i++)
        {
            System.out.println(sz[i]);//输出每一行的数据
        }
    }
}

把文件上传到FTP

1
2
3
4
5
6
7
8
9
public static void main(String[] args) throws Exception
{
    FTPClient ftpClient = new FTPClient();//import org.apache.commons.net.ftp.FTPClient;
    ftpClient.connect("10.18.20.147", 21);//连接ftp
    ftpClient.login("tyz_ftp", "tc_xw_ftp");//登陆ftp
    ftpClient.changeWorkingDirectory("/var/ftp/home/tyzf_ftp/batchUpload");//需要把文件上传到FTP哪个目录
    File file = new File("D:\\aa.txt");//需要上传的文件
    System.out.println(ftpClient.storeFile(file.getName(), new FileInputStream(file)));//存储文件,成功返回true,失败false
}