记录一次前端input中的值为什么在后端取不到值
2023-08-09sad creeper
前端源码：
<input type="text" name="user" placeholder="请输入你的名字" class="layui-input" value="{{ username}}" size="50" disabled="true">
后端源码：
send_name = request.POST.get('user')
这里取到的值为None
原因：
在HTML中，`disabled="true"` 是用来禁用输入字段的属性。当设置为 `disabled="true"` 时，用户无法在该输入字段中进行编辑或输入，也无法将该字段的值提交到后端。
因此，当你的输入字段被禁用时，后端代码 `request.POST.get('user')` 将无法获取该字段的值，因为禁用的字段不会被包含在提交的表单数据中。
如果你想在后端取到这个值，前端又需要禁止用户输入，怎么解决呢？
可以使用 `readonly` 属性来替代 `disabled` 属性。
代码如下：
<input type="text" name="user" placeholder="请输入你的名字" class="layui-input" value="{{ username }}" size="50" readonly>阅读 1562 评论
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