java ftp client

w2tvp80q7d

小 demo

package com.mytool.ftp;
import java.applet.Applet;
import java.io.DataInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import sun.net.ftp.FtpClient;
import netscape.javascript.JSObject;
import netscape.javascript.JSException; //可允许在小程序中处理异常事件
public class FtpTool extends Applet {
FtpClient ftp = null;
String user = "";
String password = "";
int port = 21;
String host = "127.0.0.1";
public FtpTool() {
ftp = new FtpClient();
}
public FtpTool(String ip, int pt, String u, String pwd) {
host = ip;
port = pt;
user = u;
password = pwd;
try {
ftp = new FtpClient();
ftp.openServer(host, port);
ftp.login(user, password);
} catch (IOException e) {
e.printStackTrace();
}
}
public void list() {
List list = new ArrayList();
try {
DataInputStream dis = new DataInputStream(ftp.list());
String s = "";
while ((s = dis.readLine()) != null) {
String str = new String(s.replace(" ", ">").getBytes(
"iso-8859-1"), "gb2312");
while (str.indexOf(">>") != -1) {
str = str.replace(">>", ">");
}
String[] item = str.split(">");
System.out.println(str);
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void cd(String dir) {
try {
ftp.cd(dir);
} catch (IOException e) {
e.printStackTrace();
}
}
public void cdUp() {
try {
ftp.cdUp();
} catch (Exception e) {
e.printStackTrace();
}
}
public void disconnect() {
try {
ftp.closeServer();
} catch (Exception e) {
e.printStackTrace();
}
}
public boolean mkdir(String dir) {
return false;
}
public String readLine() {
return null;
}
public void sendLine(String line) {
}
public void callJavaScript(String callBackJavascript) {
JSObject window = JSObject.getWindow(this); // 获取JavaScript窗口句柄，引用当前文档窗口
JSObject docment = (JSObject) window.getMember("document");
JSObject form = (JSObject) docment.getMember("textForm"); // 访问JavaScript
// form对象
JSObject textField = (JSObject) form.getMember("textField");// 访问JavaScript
// text对象
String text = (String) textField.getMember("value"); // 获取文本区的值
// 调用JavaScript的alert（）方法
window.eval("alert(\"This alert comes from Java!\")");
window.call(callBackJavascript, null);// 参数用数组的形式表示。
}
public static void main(String[] args) {
FtpTool ftp = new FtpTool("127.0.0.1", 21, "wzj", "121");
ftp.list();
}
}