Java遍歷Properties的所有的元素 加載
Properties properties = new Properties();
properties.load(PlayGround.class.getClassLoader().getResourceAsStream("tag.properties"));
輸出
/**
* 輸出properties的key和value
*/
public static void printProp(Properties properties) {
System.out.println("---------（方式一）------------");
for (String key : properties.stringPropertyNames()) {
System.out.println(key + "=" + properties.getProperty(key));
}
System.out.println("---------（方式二）------------");
Set<Object> keys = properties.keySet();//返回屬性key的集合
for (Object key : keys) {
System.out.println(key.toString() + "=" + properties.get(key));
}
System.out.println("---------（方式三）------------");
Set<Map.Entry<Object, Object>> entrySet = properties.entrySet();//返回的屬性鍵值對實體
for (Map.Entry<Object, Object> entry : entrySet) {
System.out.println(entry.getKey() + "=" + entry.getValue());
}
System.out.println("---------（方式四）------------");
Enumeration<?> e = properties.propertyNames();
while (e.hasMoreElements()) {
String key = (String) e.nextElement();
String value = properties.getProperty(key);
System.out.println(key + "=" + value);
}
}
/** * 輸出properties的key和value */ public static void printProp(Properties properties) { System.out.println("---------（方式一）------------"); for (String key : properties.stringPropertyNames()) { System.out.println(key + "=" + properties.getProperty(key)); } System.out.println("---------（方式二）------------"); Set<Object> keys = properties.keySet();//返回屬性key的集合 for (Object key : keys) { System.out.println(key.toString() + "=" + properties.get(key)); } System.out.println("---------（方式三）------------"); Set<Map.Entry<Object, Object>> entrySet = properties.entrySet();//返回的屬性鍵值對實體 for (Map.Entry<Object, Object> entry : entrySet) { System.out.println(entry.getKey() + "=" + entry.getValue()); } System.out.println("---------（方式四）------------"); Enumeration<?> e = properties.propertyNames(); while (e.hasMoreElements()) { String key = (String) e.nextElement(); String value = properties.getProperty(key); System.out.println(key + "=" + value); } }