public static void main(String[] args) {
dumpSystemInfo();
Set<?> keys = System.getProperties().keySet();
@SuppressWarnings("unchecked")
List<String> list = createArrayList((Set<String>) keys);
Collections.sort(list);
for (String key : list) {
String value = System.getProperty(key);
System.out.println(key + " = " + defaultIfNull(StringEscapeUtil.escapeJava(value), "[n/a]"));
}
}
/**
* 输出到<code>StringBuilder</code>。
*
* @param buffer <code>StringBuilder</code>对象
* @param caption 标题
* @param value 值
*/
private static void append(StringBuilder buffer, String caption, String value) {
buffer
.append(caption)
.append(defaultIfNull(StringEscapeUtil.escapeJava(value), "[n/a]"))
.append("\n");
}