Java 8遍历Map的方式

1、使用entrySet()和stream()方法结合遍历Map

        Map map = new HashMap<>();
        map.put("A001", "zhangsan");
        map.put("A002", "lisi");
        map.entrySet().stream()
                .forEach(entry -> {
                   String key = entry.getKey();
                    String value = entry.getValue();
                    System.out.println(key + " = " + value);
        });

结果：

A001 = zhangsan
A002 = lisi