工作需要，java实现了一个FTP上传文件的例子。

代码如下：
首先把FTP使用过程中需要的一些信息包装成一个类。

FTPModel.java

import java.io.InputStream;
import java.io.Serializable;

public class FTPModel implements Serializable{
    private String url;
    private int port;
    private String username;
    private String password;
    private String path;
    private String filename;
    public String getUrl() {
        return url;
    }
    public void setUrl(String url) {
        this.url = url;
    }
    public int getPort() {
        return port;
    }
    public void setPort(int port) {
        this.port = port;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getPath() {
        return path;
    }
    public void setPath(String path) {
        this.path = path;
    }
    public String getFilename() {
        return filename;
    }
    public void setFilename(String filename) {
        this.filename = filename;
    }
}

FTP连接需要的配置信息

ftp.properties

ftp.url = 172.16.100.50
ftp.port = 22
ftp.username = username
ftp.password = password
ftp.path = /home/ihome/House/

使用spring来读取配置文件

spring配置信息

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>WEB-INF/classes/ftp.properties</value>
        </list>
    </property>
</bean>

假设要在ChomeFileUpload.java中读取配置信息

ChomeFileUpload.java中添加代码

    private String url;
    private int port;
    private String username;
    private String password;
    private String path;
    
    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public int getPort() {
        return port;
    }

    public void setPort(int port) {
        this.port = port;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getPath() {
        return path;
    }

    public void setPath(String path) {
        this.path = path;
    }

spring配置文件中配置信息

<bean id="FileUpload_" class="com.agree.ihome.action.paramanage.ChomeFileUpload"  scope="prototype" >
    <property name="url" value="${ftp.url}"></property>
    <property name="port" value="${ftp.port}"></property>
    <property name="username" value="${ftp.username}"></property>
    <property name="password" value="${ftp.password}"></property>
    <property name="path" value="${ftp.path}"></property>
</bean>

FTPUtil.java

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import com.agree.ihome.models.FTPModel;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;

public class FTPUtil {
    /**
     * ftp方式连接
     */
    public static boolean uploadFileByFtp(FTPModel ftpModel,InputStream input) throws Exception{
        boolean success = false;
        
        FTPClient ftp = new FTPClient();
        try {
            ftp.connect(ftpModel.getUrl(), ftpModel.getPort());
            ftp.login(ftpModel.getUsername(), ftpModel.getPassword());
            int reply = ftp.getReplyCode();//获取状态码
            if (!FTPReply.isPositiveCompletion(reply)) { 
                ftp.disconnect();
                return success; 
            }
            ftp.changeWorkingDirectory(ftpModel.getPath());
            ftp.storeFile(ftpModel.getFilename(), input);
            input.close(); 
            ftp.logout(); 
            success = true;
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            if (ftp.isConnected()) { 
                try { 
                    ftp.disconnect();//断开连接
                } catch (IOException ioe) {
                } 
            }
        }
        return success;
    }
    /**
     * sftp方式连接
     * @param ftpModel
     * @param input
     * @return
     * @throws Exception
     */
    public static boolean uploadFileBySFtp(FTPModel ftpModel,InputStream input) throws Exception{
        boolean success = false;
        ChannelSftp sftp = null;
        Channel channel = null;
        try {
            JSch jsch = new JSch();
            Session sshSession = jsch.getSession(ftpModel.getUsername(), ftpModel.getUrl(), ftpModel.getPort()); 
            sshSession.setPassword(ftpModel.getPassword()); 
            Properties sshConfig = new Properties(); 
            sshConfig.put("StrictHostKeyChecking", "no"); 
            sshSession.setConfig(sshConfig); 
            sshSession.connect();
            channel = sshSession.openChannel("sftp"); 
            channel.connect(); 
            
            sftp = (ChannelSftp) channel;
            sftp.cd(ftpModel.getPath());
            sftp.put(input,ftpModel.getFilename());
            success =true;
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            channel.disconnect();
            input.close();
        }
        return success;
    }
}

THE END

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