获取request所有参数和值

Iterator iterator = request.getParameterMap().entrySet().iterator();
while (iterator.hasNext()) {
    Entry entry = (Entry) iterator.next();
    System.out.println("parameter name()==" + entry.getKey());
    if (entry.getValue() instanceof String[]) {
        System.out.println("parameter value()==" + ((String[]) entry.getValue())[0]);
    } else {
        System.out.println("parameter value()==" + entry.getValue());
    }
}