基本信息
源码名称:java读取属性文件单个属性值(.properties文件)
源码大小:3.69KB
文件格式:.zip
开发语言:Java
更新时间:2019-07-20
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源码介绍
package com.mingrisoft;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.table.DefaultTableModel;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Enumeration;
import java.util.Properties;
public class PropertiesFileTool extends JFrame {
/**
*
*/
private static final long serialVersionUID = 901647053358382011L;
private JPanel contentPane;
private JTextField textField;
private JTable table;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
PropertiesFileTool frame = new PropertiesFileTool();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public PropertiesFileTool() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
JPanel panel = new JPanel();
contentPane.add(panel, BorderLayout.NORTH);
JLabel label = new JLabel("\u9009\u62E9\u7684\u5C5E\u6027\u6587\u4EF6\uFF1A");
panel.add(label);
textField = new JTextField();
panel.add(textField);
textField.setColumns(15);
JButton button = new JButton("\u9009\u62E9\u6587\u4EF6");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
do_button_actionPerformed(e);
}
});
panel.add(button);
JScrollPane scrollPane = new JScrollPane();
contentPane.add(scrollPane, BorderLayout.CENTER);
table = new JTable();
DefaultTableModel model = (DefaultTableModel) table.getModel();
model.setColumnIdentifiers(new String[] { "键", "值" });
scrollPane.setViewportView(table);
}
protected void do_button_actionPerformed(ActionEvent e) {
JFileChooser chooser = new JFileChooser();// 创建文件选择器
chooser.setFileFilter(new FileNameExtensionFilter("属性文件", "properties"));// 设置文件过滤器
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);// 设置仅能选择文件
chooser.setMultiSelectionEnabled(false);// 禁止多个选择
int result = chooser.showOpenDialog(this);
if (result == JFileChooser.APPROVE_OPTION) {
File selectFile = chooser.getSelectedFile();// 获得选择的文件
textField.setText(selectFile.getAbsolutePath());// 显示选择的文件路径
Properties properties = new Properties();
FileReader reader = null;
DefaultTableModel model = (DefaultTableModel) table.getModel();// 获得表格模型
try {
reader = new FileReader(selectFile);
properties.load(reader);// 加载属性文件
Enumeration<?> keys = properties.propertyNames();// 获得属性文件的键枚举
while (keys.hasMoreElements()) {
String key = (String) keys.nextElement();// 获得键
String value = properties.getProperty(key);// 获得值
model.addRow(new String[] { key, value });// 向表格中增加记录
}
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
}
}