JScrollPane 添加JTextarea的方法用setViewportView

package com.blog.csdn.ui;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Toolkit;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.LayoutFocusTraversalPolicy;

import com.itextpdf.text.log.Logger;

/**
 * 只看功能,不重视外观
 * @author chaigw
 *
 */
public class ConfigFrame extends JFrame {

	Container container;
	public ConfigFrame() {
		this.setSize(400, 300);
		this.setTitle("CSDN 博客下载器");
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		Dimension frameSize = this.getSize();
		this.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
		container = this.getContentPane();
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	
	public ConfigFrame(String blogName) 
	{
		this();
		fillBlogName(blogName);
	}
	
	public void fillBlogName(String blogName)
	{
		JLabel lb = new JLabel("http://blog.csdn.net/");
		//此处需添加一点就没的功能,以后再说
		JTextField tf = new JTextField(blogName);
		tf.setColumns(6);
		JButton bt = new JButton("生成PDF");
		FlowLayout flow = new FlowLayout();
		JPanel req = new JPanel();
		req.setLayout(flow);
		req.add(lb);
		req.add(tf);
		req.add(bt);
		JPanel log = new JPanel();
		JScrollPane scroLog = new JScrollPane();
		scroLog.setPreferredSize (new Dimension (320,220));
		log.setSize(300,200);
		JTextArea area = new JTextArea(10, 30);
		area.setLineWrap(true);
		log.add(area);
		scroLog.setViewportView(area);
		container.add(req,BorderLayout.CENTER);
//		container.add(log,BorderLayout.SOUTH);
		container.add(scroLog,BorderLayout.SOUTH);
	}
	
	public static void main(String[] args) {
		ConfigFrame configFrame  = new ConfigFrame("");
		configFrame.setVisible(true);
	}
}

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