java连接FTP上传和下载文件
package https://www.wendangku.net/doc/a57785324.html,.yxjx.pub;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import https://www.wendangku.net/doc/a57785324.html,mons.io.FileUtils;
import https://www.wendangku.net/doc/a57785324.html,.ftp.FTP;
import https://www.wendangku.net/doc/a57785324.html,.ftp.FTPClient;
import https://www.wendangku.net/doc/a57785324.html,.ftp.FTPClientConfig;
import https://www.wendangku.net/doc/a57785324.html,.ftp.FTPFile;
import https://www.wendangku.net/doc/a57785324.html,.ftp.FTPReply;
public class FTPHandle {
private String username;
private String password;
private String ip;
private int port;
private Properties property = null;// 配置
private String configFile;// 配置文件的路径名
private FTPClient ftpClient = null;
private String filedir = "";// FTP文件路径
private final String[] FILE_TYPES = { "文件", "目录", "符号链接", "未知类型" };
private static SimpleDateFormat dateFormat=new SimpleDateFormat("yyyy-MM-dd hh:mm");
* 设置参数
*
* @param configFile
* --参数的配置文件
*/
private void setArg(String configFile) {
property = new Properties();
BufferedInputStream inBuff = null;
try {
inBuff = new BufferedInputStream(this.getClass().getResourceAsStream(configFile));
property.load(inBuff);
username = property.getProperty("username");
password = property.getProperty("password");
ip = property.getProperty("ip");
port = Integer.parseInt(property.getProperty("port"));
filedir = property.getProperty("filedir");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (inBuff != null)
inBuff.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* 设置FTP客服端的配置--一般可以不设置
*
* @return
*/
private FTPClientConfig getFtpConfig() {
FTPClientConfig ftpConfig = new FTPClientConfig(
FTPClientConfig.SYST_UNIX);
ftpConfig.setServerLanguageCode(FTP.DEFAULT_CONTROL_ENCODING);
return ftpConfig;
}
/**
* 连接到服务器
public void connectServer() {
if (ftpClient == null) {
int reply;
try {
setArg(configFile);
ftpClient = new FTPClient();
// ftpClient.configure(getFtpConfig());
ftpClient.connect(ip);
ftpClient.login(username, password);
ftpClient.setDefaultPort(port);
System.out.print(ftpClient.getReplyString());
reply = ftpClient.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftpClient.disconnect();
System.err.println("FTP server refused connection.");
}
} catch (Exception e) {
System.err.println("登录ftp服务器【" + ip + "】失败");
e.printStackTrace();
}
}
}
/**
* 进入到服务器的某个目录下
*
* @param directory
*/
public void changeWorkingDirectory() {
try {
ftpClient.changeWorkingDirectory(filedir);
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
/**
* 上传文件
*
* @param inputStream--文件输入流
* @param newFileName--新的文件名
*/
public void uploadFile(InputStream inputStream, String newFileName) { changeWorkingDirectory();// 进入文件夹
// 上传文件
BufferedInputStream buffIn = null;
try {
buffIn = new BufferedInputStream(inputStream);
ftpClient.storeFile(newFileName, buffIn);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (buffIn != null)
buffIn.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* 列出服务器上文件和目录
*
* @param regStr
* --匹配的正则表达式
*/
@SuppressWarnings("unchecked")
public List listRemoteFiles(String regStr) {
List list = new ArrayList();
try {
FTPFile[] files = ftpClient.listFiles(regStr);
if (files == null || files.length == 0) {
System.out.println("There has not any file!");
return null;
} else {
for (FTPFile file : files) {
if (file != null) {
Map map = new HashMap();
String filename = file.getName();
int filenamelen = filename.length();
if(filenamelen>4){
String filetype = filename.substring(filenamelen-3);
if("txt".equals(filetype)){
String name = file.getName();
name = name.substring(0,name.length()-4);
map.put("filename", name);
map.put("filesize",
FileUtils.byteCountToDisplaySize(file.getSize()));
map.put("scsj",
dateFormat.format(file.getTimestamp().getTime()));
list.add(map);
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
/**
* 下载文件
* @param remoteFileName --服务器上的文件名
* @param localFileName--本地文件名
*/
public void loadFile(String remoteFileName,String localFileName){
//下载文件
BufferedOutputStream buffOut=null;
try{
buffOut=new BufferedOutputStream(new FileOutputStream(localFileName));
ftpClient.retrieveFile(remoteFileName, buffOut);
}catch(Exception e){
e.printStackTrace();
}finally{
try{
if(buffOut!=null)
buffOut.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
/**
* 删除文件
*/
public void deleteFile(String filename){
try{
ftpClient.deleteFile(filename);
}catch(IOException ioe){
ioe.printStackTrace();
}
}
/**
* 关闭连接
*/
public void closeConnect(){
try{
if(ftpClient!=null){
ftpClient.logout();
ftpClient.disconnect();
System.out.println("Ftp have closed");
}
}catch(Exception e){
e.printStackTrace();
}
}
public String getConfigFile() {
return configFile;
}
public void setConfigFile(String configFile) { this.configFile = configFile;
}
public String[] getFILE_TYPES() {
return FILE_TYPES;
}
public FTPClient getFtpClient() {
return ftpClient;
}
public void setFtpClient(FTPClient ftpClient) { this.ftpClient = ftpClient;
}
public String getIp() {
return ip;
}
public void setIp(String ip) {
this.ip = ip;
}
public String getPassword() {
return password;
}
public void setPassword(String password) { this.password = password;
}
public int getPort() {
return port;
}
public void setPort(int port) {
this.port = port;
}
public Properties getProperty() {
return property;
}
public void setProperty(Properties property) { this.property = property;
}
public String getUsername() {
return username;
}
public void setUsername(String username) { https://www.wendangku.net/doc/a57785324.html,ername = username;
}
public String getFiledir() {
return filedir;
}
public void setFiledir(String filedir) {
this.filedir = filedir;
}
}