input Unable to read

    <form method="post" action="/good/GoodIndexAdd/">
    {% csrf_token %}
    <div class="input-group">
        <input id="txtIndexAddUrl" type="text" class="form-control" name="txtIndexAddUrl">
        <input type="submit" value="Submit" />
    </div>
    </form>

每一个input必须拥有一个name name="txtIndexAddUrl" 否则读不到。