File/FileInputStream 问题

Question

这个代码有问题已经研究了很长时间，并且在多个不同的场合和天使中查看和使用它并且似乎无法让它继续它不接受带红色下划线的文件（下面的代码）这属于 Dropbox Api 我尝试创建的方法是将客户端文件上传到 dropBox ...我使用 JFileChooser 打开文件然后将其放入选定的文件中然后一个 fileInputStream，这就是问题出现的地方，无论我尝试以何种方式解决它，ints 都没有让步。我以前从未使用过这个 API 但看过很多不同的 exp。代码，即使在查看了他们的代码之后似乎仍然无法理解？

package daword;

 import java.util.ArrayList;
import java.awt.Desktop;
import java.io.File;
import com.dropbox.core.DbxAccountInfo;
import com.dropbox.core.*;
///import com.dropbox.core.DbxEntry.File;
import com.dropbox.core.json.JsonReader;
import com.dropbox.core.json.JsonReader.FileLoadException;
import java.awt.BorderLayout;

import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.Toolkit;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;

import java.io.*;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Locale;
import java.util.Scanner;
import javax.swing.JButton;
import javax.swing.JFrame;
import java.util.Locale;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.stage.FileChooser;
import javax.imageio.ImageIO;
import javax.naming.Context;
import javax.swing.AbstractAction;
import javax.swing.ImageIcon;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JToolBar;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.text.DefaultEditorKit;
import javax.swing.text.DefaultEditorKit.CopyAction;
import javax.swing.text.DefaultEditorKit.CutAction;


public class dropBox extends JFrame implements ActionListener{
  File inputFile;   
private boolean logedIn = false;
JFileChooser fc;
 String dirName;
final String APP_KEY = "00000";
final String APP_SECRET = "00000";
private JButton connect, upload;
ImageIcon im1;
DbxClient client;
JLabel jlab;
JPanel jpan;
ImageIcon login;
BorderLayout borderlayout;
JTextField field = new JTextField(15);
JPopupMenu menu = new JPopupMenu("Menu");

//boolean  isAuthTokenReady = false;
InetSocketAddress add;
//boolean connection = false;
public JButton jb;



public dropBox(){
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setSize(600,600);
setLocationRelativeTo(null);
setResizable(false);
setLookAndFeel();

JOptionPane.showMessageDialog(null,"1.Please Click Login\n2.Click Options\n3.Use How You Please!",
"Instructions", JOptionPane.WARNING_MESSAGE);
internet();

borderlayout = new BorderLayout();
getClipboard();
im1 = new ImageIcon(getClass().getResource("dropBox.gif"));
jlab= new JLabel(im1);
jlab.setLayout(null);
add(jlab);
login = new ImageIcon(getClass().getResource("login.gif"));
connect = new JButton( login);

connect.setSize(180, 57);
jlab.add(connect);
connect.addActionListener(this);


upload = new JButton ("upload");
upload.setBounds(0, 0, 220, 30);
upload.addActionListener(this);
jlab.add(upload);
BorderLayout bord = new BorderLayout();



setVisible(true);
}



 public void internet (){
Socket sock = new Socket();
  add = new InetSocketAddress("www.google.com", 80);
   try{
       wifi= true;
       sock.connect(add, 3000);
       System.out.println("Connection Present");
       ImageIcon img = new ImageIcon("/images/wifi.png");
       jb = new JButton(img);


   } catch(IOException e){

       System.out.println(" No Connection");
   }

 }





@Override
public void actionPerformed(ActionEvent evt) {
Object source = evt.getSource();
Object uploadS = evt.getSource();
if(source == connect){
try{
drop();
    }catch(Exception e){
JOptionPane.showMessageDialog(null,"Unable To Connect :( Please Try Again ..",
"ALERT", JOptionPane.WARNING_MESSAGE);

}

}else if(uploadS == upload){

       if (logedIn = true){
           try {
               uploadFile();
           } catch (DbxException ex) {
               Logger.getLogger(dropBox.class.getName()).log(Level.SEVERE, null, ex);
           } catch (IOException ex) {
               Logger.getLogger(dropBox.class.getName()).log(Level.SEVERE, null, ex);
           }
       }



}
}



private void setLookAndFeel() {
try{
UIManager.setLookAndFeel("UIManager.getSystemLookAndFeelClassName");
}catch (ClassNotFoundException | InstantiationException | IllegalAccessException |
UnsupportedLookAndFeelException e){
}
}


public static String getClipboard() {
Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
try {
if (t != null && t.isDataFlavorSupported(DataFlavor.stringFlavor)) {
return (String) t.getTransferData(DataFlavor.stringFlavor);
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}


// JButton Login
public void drop() throws IOException, DbxException{

 String userLocale = Locale.getDefault().toString();
DbxAppInfo appInfo = new DbxAppInfo(APP_KEY, APP_SECRET);
DbxRequestConfig config = new DbxRequestConfig("Daword",
Locale.getDefault().toString());
DbxWebAuthNoRedirect webAuth = new DbxWebAuthNoRedirect(config, appInfo);
// Have the user sign in and authorize your app.
String authorizeUrl = webAuth.start();
System.out.println("You Will Be Redirected To: " + authorizeUrl);
JOptionPane.showMessageDialog(null,"Go To:"+ authorizeUrl,
"" +
"", JOptionPane.WARNING_MESSAGE);
java.awt.Desktop.getDesktop().browse(java.net.URI.create(authorizeUrl));
System.out.println("Enter Your auth code in this prompt and hit enter and wait..");



String userA = JOptionPane.showInputDialog(null, "Enter your auth code here:"); //Prompt for

if (userA.isEmpty()) {
System.exit(1);
}
System.out.println(userA.trim()); //For testing purposes print the trimmed auth code to console.
// [Omitted Code] //
// This will fail if the user enters an invalid authorization code.


DbxAuthFinish authFinish = webAuth.finish(userA);
String accessToken = authFinish.accessToken;
 client = new DbxClient(config, accessToken);
DbxAuthInfo authInfo = new DbxAuthInfo(authFinish.accessToken, appInfo.host);
System.out.println("Linked account: " + client.getAccountInfo().displayName);


JOptionPane.showMessageDialog(null, "Welcome"+
client.getAccountInfo().displayName+ authFinish.accessToken+
" And Welcome To Our Community!");

 }




public void uploadFile() throws FileNotFoundException, DbxException, IOException{

 fc = new JFileChooser();
 fc.setMultiSelectionEnabled(true);
 fc.setFileSelectionMode(JFileChooser.FILES_ONLY);

int dialog = fc.showSaveDialog(this);

 if (dialog == JFileChooser.APPROVE_OPTION) {
  inputFile = fc.getSelectedFile().getAbsoluteFile();




    try (FileInputStream inputStream = new FileInputStream(inputFile)) {

        DbxEntry.File uploadedFile = client.uploadFile("",
        DbxWriteMode.add(), inputFile.length(), inputStream);
        String sharedUrl = client.createShareableUrl("");
        System.out.println("Uploaded: " + uploadedFile.toString() + " URL " + sharedUrl);
    }      



}
}
}

Answer 1

听起来你好像失踪了import java.io.File;

Answer 2

这基本上已经解决了 smarx 指出发生的事情还不够 red-bulls 让我注意到导入 java.io 因为我有一个冲突的 dbx 文件导入..我也没有注意到我没有包含用于存储我的访问代码的代码，所以每次我运行我应该登录或应该存储密钥的程序。简而言之，文件路径也引起了问题，因为我假设文件选择器获得了代码并将其传递给它没有做的输入流，需要文件位置 exp: user/me/desktop/cool.txt 的绝对路径。我查看了 dropbox 文档，更多地了解了正确的参数是如何在这个社区的帮助下将它拼凑在一起的，感谢大家的回复。

File/FileInputStream 问题

File/FileInputStream issue

java

api

methods

jfilechooser