【Java】Properties文件的解析
1 public abstract class ReadProperties { 2 3 public ReadProperties() {} 4 5 /** 6 * 回调函数，由调用者处理 7 * @param key 8 * @param value 9 */ 10 public abstract void dealKeyAndValue(String key, String value); 11 12 /** 13 * 根据包路径解析 14 * @param packagePath 15 * @throws IOException 16 */ 17 public void read(String packagePath) throws IOException { 18 InputStream is = this.getClass().getResourceAsStream(packagePath); 19 read(is); 20 } 21 22 /** 23 * 根据文件的绝对路径解析 24 * @param absolutePath 25 * @throws IOException 26 */ 27 public void readFile(String absolutePath) throws IOException { 28 read(new File(absolutePath)); 29 } 30 31 /** 32 * 根据{@link File}解析 33 * @param file 34 * @throws IOException 35 */ 36 public void read(File file) throws IOException { 37 read(new FileInputStream(file)); 38 } 39 40 /** 41 * 根据{@link InputStream}解析 42 * @param is 43 * @throws IOException 44 */ 45 public void read(InputStream is) throws IOException { 46 Properties properties = new Properties(); 47 try { 48 // Properties文件会出现乱码问题，以UTF-8的方式打开 49 properties.load(new InputStreamReader(is, "UTF-8")); 50 Enumeration<Object> keys = properties.keys(); 51 52 while (keys.hasMoreElements()) { 53 String key = (String) keys.nextElement(); 54 String value = properties.getProperty(key); 55 properties.get(key); 56 57 dealKeyAndValue(key, value); 58 } 59 } finally { 60 is.close(); 61 } 62 } 63 64 }
使用：
在src下新建一个test.properties文件如下：
执行解析：
1 public class Test { 2 3 public static void main(String[] args) throws Exception { 4 new ReadProperties() { 5 @Override 6 public void dealKeyAndValue(String key, String value) { 7 System.out.println(key + " = " + value); 8 } 9 }.read("/test.properties");; 10 } 11 12 }
结果如下：
