登陆注册读取数据库

[java]代码库

if(arg0.getSource()==menuItem1){
			JFileChooser  jch=new JFileChooser();
			jch.showOpenDialog(this);//打开文件的对话框
			System.out.print(jch.getSelectedFile());
			String fileName=jch.getSelectedFile().toString();
		try{
			BufferedReader br = new BufferedReader
					(new InputStreamReader(
					new FileInputStream(jch.getSelectedFile())));
			for (String line = br.readLine(); line != null; line = br.readLine()) 
			{jta.append(line);
			jta.append("\n");
					}
					
			br.close();	
					} catch (IOException e1) {
						// TODO Auto-generated catch block
						JOptionPane.showMessageDialog(null,e1.getMessage(), "",JOptionPane.CLOSED_OPTION); 			
						//e1.printStackTrace();
					}
			
		}