Java读写资源文件类Properties

  1 package com.ifly.myhome.test;
  2 
  3 import java.io.File;
  4 import java.io.FileInputStream;
  5 import java.io.FileOutputStream;
  6 import java.io.IOException;
  7 import java.io.InputStream;
  8 import java.io.OutputStream;
  9 import java.io.UnsupportedEncodingException;
 10 import java.util.Properties;
 11 
 12 public class PropertiesMyTest
 13 {
 14 
 15     public static void main(String[] args)
 16     {
 17 
 18         String readfile = "e:" + File.separator + "readfile.properties";
 19         String writefile = "e:" + File.separator + "writefile.properties";
 20         String readxmlfile = "e:" + File.separator + "readxmlfile.xml";
 21         String writexmlfile = "e:" + File.separator + "writexmlfile.xml";
 22         String readtxtfile = "e:" + File.separator + "readtxtfile.txt";
 23         String writetxtfile = "e:" + File.separator + "writetxtfile.txt";
 24 
 25         readPropertiesFile(readfile); //读取properties文件
 26         writePropertiesFile(writefile); //写properties文件
 27         readPropertiesFileFromXML(readxmlfile); //读取XML文件
 28         writePropertiesFileToXML(writexmlfile); //写XML文件
 29         readPropertiesFile(readtxtfile); //读取txt文件
 30         writePropertiesFile(writetxtfile); //写txt文件
 31     }
 32 
 33     //读取资源文件,并处理中文乱码
 34     public static void readPropertiesFile(String filename)
 35     {
 36         Properties properties = new Properties();
 37         try
 38         {
 39             InputStream inputStream = new FileInputStream(filename);
 40             properties.load(inputStream);
 41             inputStream.close(); //关闭流
 42         }
 43         catch (IOException e)
 44         {
 45             e.printStackTrace();
 46         }
 47         String username = properties.getProperty("username");
 48         String passsword = properties.getProperty("password");
 49         String chinese = properties.getProperty("chinese");
 50         try
 51         {
 52             chinese = new String(chinese.getBytes("ISO-8859-1"), "GBK"); // 处理中文乱码
 53         }
 54         catch (UnsupportedEncodingException e)
 55         {
 56             e.printStackTrace();
 57         }
 58         System.out.println(username);
 59         System.out.println(passsword);
 60         System.out.println(chinese);
 61     }
 62 
 63     //读取XML文件,并处理中文乱码
 64     public static void readPropertiesFileFromXML(String filename)
 65     {
 66         Properties properties = new Properties();
 67         try
 68         {
 69             InputStream inputStream = new FileInputStream(filename);
 70             properties.loadFromXML(inputStream);
 71             inputStream.close();
 72         }
 73         catch (IOException e)
 74         {
 75             e.printStackTrace();
 76         }
 77         String username = properties.getProperty("username");
 78         String passsword = properties.getProperty("password");
 79         String chinese = properties.getProperty("chinese"); //XML中的中文不用处理乱码，正常显示
 80         System.out.println(username);
 81         System.out.println(passsword);
 82         System.out.println(chinese);
 83     }
 84 
 85     //写资源文件，含中文
 86     public static void writePropertiesFile(String filename)
 87     {
 88         Properties properties = new Properties();
 89         try
 90         {
 91             OutputStream outputStream = new FileOutputStream(filename);
 92             properties.setProperty("username", "myname");
 93             properties.setProperty("password", "mypassword");
 94             properties.setProperty("chinese", "中文");
 95             properties.store(outputStream, "author: shixing_11@sina.com");
 96             outputStream.close();
 97         }
 98         catch (IOException e)
 99         {
100             e.printStackTrace();
101         }
102     }
103 
104     //写资源文件到XML文件，含中文  
105     public static void writePropertiesFileToXML(String filename)
106     {
107         Properties properties = new Properties();
108         try
109         {
110             OutputStream outputStream = new FileOutputStream(filename);
111             properties.setProperty("username", "myname");
112             properties.setProperty("password", "mypassword");
113             properties.setProperty("chinese", "中文");
114             properties.storeToXML(outputStream, "author: shixing_11@sina.com");
115             outputStream.close();
116         }
117         catch (IOException e)
118         {
119             e.printStackTrace();
120         }
121     }
122 
123 }