Salvar arquivo onde o usuario achar melhor

Programação Java
#1

Pessoal uma ajuda por favor

Esse meu codigo pega o arquivo xml e zipa na minha unidade c:

queria que ao inves de salvar na unidade c: o usuario salvasse onde ele achasse melhor

alguem sabe como faço isso?

Obrigado


String arquivo = "c:/sax.xml";
		byte[] buf = new byte[1024];
		
		String compac = "c:/sax.zip";
		ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(compac));
		
		FileInputStream in = new FileInputStream(arquivo);
		
		zos.putNextEntry(new ZipEntry(arquivo));
		
		int len;
		
		while ((len = in.read(buf)) > 0) {
			zos.write(buf, 0, len);
		}
		
		zos.closeEntry();
		in.close();
		zos.close();
#2

Você pode usar o JFileChooser, http://java.sun.com/docs/books/tutorial/uiswing/components/filechooser.html
flw

#3

Olá jemoliveira,
tenho uma interface aqui de um compilador, o qual eu desenvolvi pra um trabalho da faculdade.
Tirei o código não relevante, e acho que poderá te ajudar a entender como o FileChooser funciona. [code]import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

/**
*

  • @author serjaum
    */
    public class TesteFileChooser extends javax.swing.JFrame {

    private static final long serialVersionUID = 1L;
    public TesteFileChooser() {
    initComponents();
    }

    private void initComponents() {
    jScrollPane1 = new javax.swing.JScrollPane();
    jTextArea1 = new javax.swing.JTextArea();
    jScrollPane2 = new javax.swing.JScrollPane();
    jTextArea2 = new javax.swing.JTextArea();
    jLabel1 = new javax.swing.JLabel();
    jButtonLex = new javax.swing.JButton();
    jButtonSint = new javax.swing.JButton();
    jButtonSair = new javax.swing.JButton();
    jMenuBar1 = new javax.swing.JMenuBar();
    jMenu1 = new javax.swing.JMenu();
    jMenuItemAbrir = new javax.swing.JMenuItem();
    jMenuSalvar = new javax.swing.JMenuItem();
    jMenuLimpar = new javax.swing.JMenuItem();
    fileChooser = new javax.swing.JFileChooser(".");

     getContentPane().setLayout(null);

 setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 setTitle("Compilador");
 setResizable(false);
 jTextArea1.setColumns(20);
 jTextArea1.setRows(5);
 jTextArea1.setLineWrap(true);
 jScrollPane1.setViewportView(jTextArea1);

 getContentPane().add(jScrollPane1);
 jScrollPane1.setBounds(20, 20, 520, 430);

 jTextArea2.setColumns(20);
 jTextArea2.setRows(5);
 jScrollPane2.setViewportView(jTextArea2);

 getContentPane().add(jScrollPane2);
 jScrollPane2.setBounds(20, 470, 520, 110);

 jLabel1.setFont(new java.awt.Font("Dialog", 0, 10));
 jLabel1.setText("Console");
 getContentPane().add(jLabel1);
 jLabel1.setBounds(30, 450, 45, 20);

 jButtonLex.setText("L\u00e9xico");
 jButtonLex.addActionListener(new java.awt.event.ActionListener() {
     public void actionPerformed(java.awt.event.ActionEvent evt) {
         jButtonLexActionPerformed(evt);
     }
 });

 getContentPane().add(jButtonLex);
 jButtonLex.setBounds(20, 590, 110, 25);

 jButtonSint.setText("Sint\u00e1tico");
 jButtonSint.addActionListener(new java.awt.event.ActionListener() {
     public void actionPerformed(java.awt.event.ActionEvent evt) {
         jButtonSintActionPerformed(evt);
     }
 });

 getContentPane().add(jButtonSint);
 jButtonSint.setBounds(240, 590, 88, 25);

 jButtonSair.setText("Sair");
 jButtonSair.addActionListener(new java.awt.event.ActionListener() {
     public void actionPerformed(java.awt.event.ActionEvent evt) {
         jButtonSairActionPerformed(evt);
     }
 });

 getContentPane().add(jButtonSair);
 jButtonSair.setBounds(450, 590, 90, 25);

 jMenu1.setText("Menu");

 jMenuItemAbrir.setText("Abrir");
 jMenuItemAbrir.addActionListener(new java.awt.event.ActionListener() {
     public void actionPerformed(java.awt.event.ActionEvent evt) {
         jMenuItemAbrirActionPerformed(evt);
     }
 });

 jMenu1.add(jMenuItemAbrir);

 jMenuSalvar.setText("Salvar");
 jMenuSalvar.addActionListener(new java.awt.event.ActionListener() {
     public void actionPerformed(java.awt.event.ActionEvent evt) {
         jMenuSalvarActionPerformed(evt);
     }
 });

 jMenu1.add(jMenuSalvar);
 jMenuLimpar.setText("Limpar");
 jMenuLimpar.addActionListener(new java.awt.event.ActionListener() {
     public void actionPerformed(java.awt.event.ActionEvent evt) {
         jMenuLimparActionPerformed(evt);
     }
 });

 jMenu1.add(jMenuLimpar);

 jMenuBar1.add(jMenu1);

 setJMenuBar(jMenuBar1);

 java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
 setBounds((screenSize.width-566)/2, (screenSize.height-680)/2, 566, 680);

    }
    private void jButtonSairActionPerformed(java.awt.event.ActionEvent evt) {
    System.exit(0);
    }

    private void jButtonSintActionPerformed(java.awt.event.ActionEvent evt) {
    String[] args = new String[1];
    args[0] = fileChooser.getSelectedFile().getAbsolutePath();

    }

    private void jButtonLexActionPerformed(java.awt.event.ActionEvent evt) {
    String[] args = new String[1];
    args[0] = fileChooser.getSelectedFile().getAbsolutePath();

    }

    private void jMenuLimparActionPerformed(java.awt.event.ActionEvent evt) {
    jTextArea1.setText("");
    jTextArea2.setText("");
    }

    private void jMenuSalvarActionPerformed(java.awt.event.ActionEvent evt) {
    int res = fileChooser.showSaveDialog(this);
    if(res == JFileChooser.APPROVE_OPTION){
    File arq = fileChooser.getSelectedFile();
    try{

         	fileChooser.showOpenDialog(this);

     	String s = fileChooser.getSelectedFile().getAbsolutePath();
     	System.out.println("fileChooser.getSelectedFile().getAbsolutePath(): " + s);

         escreveArquivo(jTextArea1.getText(), arq.getPath());

         System.out.println("Nome do arquivo escolhido: " + arq.getPath());

     } catch(IOException ioe){
         JOptionPane.showMessageDialog(null, "Não foi possível salvar arquivo!");
     }
 }

    }

    private void jMenuItemAbrirActionPerformed(java.awt.event.ActionEvent evt) {
    int res = fileChooser.showOpenDialog(this);

      if(res == JFileChooser.APPROVE_OPTION){
      File arq = fileChooser.getSelectedFile();
      try{
     	 jTextArea1.setText(retornaString(arq.getPath()));
      } catch(Exception ex){
          JOptionPane.showMessageDialog(null, "Não foi possível abrir o arquivo" +  arq.getPath() + "!", 				"Leitura de arquivo", JOptionPane.ERROR_MESSAGE);
      }
  }

    }

    public void escreveArquivo(String conteudo, String fileName) throws IOException {

     PrintWriter out = new PrintWriter(new FileWriter(fileName));
 out.print(conteudo);
 out.close();
 JOptionPane.showMessageDialog(null, "Arquivo salvo com sucesso!");

    }

    public String retornaString(String fileName) throws IOException {

     BufferedReader in = new BufferedReader(new FileReader(fileName));
 String line;
 StringBuffer buffer = new StringBuffer();

 while( (line = in.readLine()) != null ){
     buffer.append(line + "\n");
 }

 in.close();
 return buffer.toString();

    }

    public String retornaStringTok(String fileName) throws IOException {

     BufferedReader in = new BufferedReader(new FileReader(fileName));
 String line;
 StringBuffer buffer = new StringBuffer();

 while( (line = in.readLine()) != null ){
     buffer.append(line + "\n");
 }

 jTextArea2.setText(buffer.toString());

 in.close();
 	return buffer.toString();

    }

    public static void main(String args[]) {
    java.awt.EventQueue.invokeLater(new Runnable() {
    public void run() {
    new TesteFileChooser().setVisible(true);
    }
    });
    }

    private javax.swing.JButton jButtonLex;
    private javax.swing.JButton jButtonSair;
    private javax.swing.JButton jButtonSint;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItemAbrir;
    private javax.swing.JMenuItem jMenuLimpar;
    private javax.swing.JMenuItem jMenuSalvar;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JTextArea jTextArea1;
    public static javax.swing.JTextArea jTextArea2;
    private javax.swing.JFileChooser fileChooser;

}[/code]Abraço :grin:

#4

Mais pessoal minha aplicação é web e não swing

#5

se for struts

<%@ taglib uri="/WEB-INF/struts/tld/struts-html.tld" prefix=“html”%>

<html:file property=“fileToUpload” style=“display:none;”/>

#6