myfilechooser.java

用java开发的QQ管理系统

package com.zlf.qqclient.filetransfer;

import java.io.File;

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

/**
 * 
 * 文件选择
 * @author zlf
 *
 */
public class MyFileChooser extends JFileChooser {



	/**
	 * 
	 */
	private static final long serialVersionUID = -6740614460014410910L;


	public void approveSelection() {
		File file = getSelectedFile();
		if (!validateFileName(file.getName())) {
            JOptionPane.showMessageDialog(getParent(), "文件名不能包含下列任何字符之一：\n \\ / : * ? \" < > |");
            return;
        }else{
            super.approveSelection();
        }
	}
	
	
	/**
	 * 
	 * 检验文件名的合法性
	 * @param name
	 * @return true/false
	 */
	 public static boolean validateFileName(String name) {
        if(name.indexOf('\\') != -1 || name.indexOf('/') != -1 ||
            name.indexOf(':') != -1  || name.indexOf('*') != -1 ||
            name.indexOf('?') != -1  || name.indexOf('"') != -1 ||
            name.indexOf('<') != -1  || name.indexOf('>') != -1 ||
            name.indexOf('|') != -1){ 

            return false;
        } else {
            return true;
        }
    }


	

}