java 读FTP上的图片 我要在WEB页面,读出FTP上已存在的图片,应如何做。。 在线等。。 请各位指导。。先说谢谢了。 。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 读取FTP文件 import org.apache.commons.io.IOUtils; import org.apache.commons.net.ftp.FTPClient; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.FileOutputStream; public class FtpTest { public static void main(String[] args) { testUpload(); testDownload(); } /** * FTP上传单个文件测试 */ public static void testUpload() { FTPClient ftpClient = new FTPClient(); FileInputStream fis = null; try { ftpClient.connect("192.168.14.117"); ftpClient.login("admin", "123"); File srcFile = new File("C:\\new.gif"); fis = new FileInputStream(srcFile); //设置上传目录 ftpClient.changeWorkingDirectory("/admin/pic"); ftpClient.setBufferSize(1024); ftpClient.setControlEncoding("GBK"); //设置文件类型(二进制) ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); ftpClient.storeFile("3.gif", fis); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException("FTP客户端出错!", e); } finally { IOUtils.closeQuietly(fis); try { ftpClient.disconnect(); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException("关闭FTP连接发生异常!", e); } } } /** * FTP下载单个文件测试 */ public static void testDownload() { FTPClient ftpClient = new FTPClient(); FileOutputStream fos = null; try { ftpClient.connect("192.168.14.117"); ftpClient.login("admin", "123"); String remoteFileName = "/admin/pic/3.gif"; fos = new FileOutputStream("c:/down.gif"); ftpClient.setBufferSize(1024); //设置文件类型(二进制) ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); ftpClient.retrieveFile(remoteFileName, fos); fos.close(); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException("FTP客户端出错!", e); } finally { IOUtils.closeQuietly(fos); try { ftpClient.disconnect(); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException("关闭FTP连接发生异常!", e); } } } } public File getFtpFile(String name) throws IOException { // 连接ftp服务器并读取log文件 FtpClient fc = new FtpClient(ftpUrl, 21); fc.login("ftpUser", "ftpPass"); fc.cd("images"); TelnetInputStream tis = fc.get(name); // 写log文件到本地 File fGetted = new File("D:\\" + name); RandomAccessFile fGet = new RandomAccessFile(fGetted, "rw"); fGet.seek(0); DataInputStream puts = new DataInputStream(tis); int ch; while ((ch = puts.read()) >= 0) { fGet.write(ch); } puts.close(); fGet.close(); tis.close(); fc.closeServer(); return fGetted; } public static void main(String[] args) { String content = ""; try { String server = "192.168.0.100"; String user = "backup"; String password = "backup123"; String path = "/Smile/txt/"; String filename = "ExamineDaoImpl.java"; String charsetName = "GBK"; String port="21"; String line; StringBuffer buffer = new StringBuffer(); FtpClient ftpClient = new FtpClient(); ftpClient.openServer(server); ftpClient.login(user, password); // ftpClient.login(arg0, arg1) ftpClient.cd(path); TelnetInputStream in = ftpClient.get(filename); BufferedReader reader = new BufferedReader(new InputStreamReader( in, charsetName)); for (int i = 0; (line = reader.readLine()) != null; i++) { buffer.append(line); buffer.append("\n"); } content = buffer.toString(); reader.close(); in.close(); ftpClient.closeServer(); } catch (Exception e) { e.printStackTrace(); } System.out.println(content); }这是读出FTP上的一个文件,我要如何改成读FTP上的图片了。。 s:iterator 迭代 按动态名取List<Map<String,object>> poi 合并单元格的问题 请教一下,session与浏览器进程的问题! 小菜泣血跪求复选框问题 PreparedStatement 的问题(100分) 编码转换问题,搞不懂了,高手帮忙 如何將網站源代碼導入JBUILDER9 中 我的jsp第一个作品(散分,提意见) 不是成员变量吗?怎么结果不合理?求教。 可以在自动识别用户进行了关闭网页的动作,在此之前调用某一函数吗? getAttribute方法返回的对象是什么类型的啊? 特殊字符替换问题
import org.apache.commons.net.ftp.FTPClient; import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.FileOutputStream;
public class FtpTest {
public static void main(String[] args) {
testUpload();
testDownload();
} /**
* FTP上传单个文件测试
*/
public static void testUpload() {
FTPClient ftpClient = new FTPClient();
FileInputStream fis = null; try {
ftpClient.connect("192.168.14.117");
ftpClient.login("admin", "123"); File srcFile = new File("C:\\new.gif");
fis = new FileInputStream(srcFile);
//设置上传目录
ftpClient.changeWorkingDirectory("/admin/pic");
ftpClient.setBufferSize(1024);
ftpClient.setControlEncoding("GBK");
//设置文件类型(二进制)
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
ftpClient.storeFile("3.gif", fis);
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("FTP客户端出错!", e);
} finally {
IOUtils.closeQuietly(fis);
try {
ftpClient.disconnect();
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("关闭FTP连接发生异常!", e);
}
}
} /**
* FTP下载单个文件测试
*/
public static void testDownload() {
FTPClient ftpClient = new FTPClient();
FileOutputStream fos = null; try {
ftpClient.connect("192.168.14.117");
ftpClient.login("admin", "123"); String remoteFileName = "/admin/pic/3.gif";
fos = new FileOutputStream("c:/down.gif"); ftpClient.setBufferSize(1024);
//设置文件类型(二进制)
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
ftpClient.retrieveFile(remoteFileName, fos);
fos.close();
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("FTP客户端出错!", e);
} finally {
IOUtils.closeQuietly(fos);
try {
ftpClient.disconnect();
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("关闭FTP连接发生异常!", e);
}
}
}
}
public File getFtpFile(String name) throws IOException
{
// 连接ftp服务器并读取log文件
FtpClient fc = new FtpClient(ftpUrl, 21);
fc.login("ftpUser", "ftpPass");
fc.cd("images");
TelnetInputStream tis = fc.get(name); // 写log文件到本地
File fGetted = new File("D:\\" + name);
RandomAccessFile fGet = new RandomAccessFile(fGetted, "rw");
fGet.seek(0);
DataInputStream puts = new DataInputStream(tis);
int ch;
while ((ch = puts.read()) >= 0)
{
fGet.write(ch);
}
puts.close();
fGet.close();
tis.close();
fc.closeServer();
return fGetted;
}
public static void main(String[] args) {
String content = ""; try {
String server = "192.168.0.100";
String user = "backup";
String password = "backup123";
String path = "/Smile/txt/";
String filename = "ExamineDaoImpl.java";
String charsetName = "GBK";
String port="21";
String line;
StringBuffer buffer = new StringBuffer(); FtpClient ftpClient = new FtpClient();
ftpClient.openServer(server);
ftpClient.login(user, password);
// ftpClient.login(arg0, arg1)
ftpClient.cd(path);
TelnetInputStream in = ftpClient.get(filename);
BufferedReader reader = new BufferedReader(new InputStreamReader(
in, charsetName));
for (int i = 0; (line = reader.readLine()) != null; i++) {
buffer.append(line);
buffer.append("\n");
}
content = buffer.toString();
reader.close();
in.close();
ftpClient.closeServer();
} catch (Exception e) {
e.printStackTrace();
} System.out.println(content); }
这是读出FTP上的一个文件,我要如何改成读FTP上的图片了。。