class test { int id; String name = "zhqang"; } HashMap<Object, String> params = new HashMap<Object, String>(); params.put(new test(), "1"); params.put(new test(), "2"); Iterator iter = params.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry = (Map.Entry) iter.next(); Object key = entry.getKey(); Object val = entry.getValue(); System.out.print(entry.getValue()); }
结果
$1test@1f3aa07 -> 1 $1test@1a33d48 -> 2