利用Ajax实现智能回答的机器人示例代码

一、实现人机交互步骤：

获取dom元素，创建点击事件/键盘事件将我说的话传进ajax服务器中，获取机器人说的话，then()中的数据找到创建子节点追加并且渲染数据出来每次说完了都滚动到对话框最下面来

① 获取dom元素，创建点击事件/键盘事件

②将我说的话传进ajax服务器中

axios.get(\’http://ajax-api.itheima.net/api/robot\’,{ params: { spoken: val}}).then(res => {
console.log(res);//res本质是服务器响应的值
console.log(res.data.data.info.text);
const words = res.data.data.info.text

这是服务器响应数据返回的值所在的位置（res.data.data.info.text）

③创建子节点追加并且渲染数据出来

li.className = \’left_word\’
document.querySelector(\’#talk_list\’).appendChild(li)
li.innerHTML = `<img src=\”lib/img/person01.png\” /> <span>${words}</span></li>`

④每次说完了都滚动到对话框最下面来

document.querySelector(\’ul\’).scrollTop = document.querySelector(\’ul\’).scrollHeight

以上这是传入Ajax发送的数据渲染，我们发的val同理渲染

// 自己发的
const li = document.createElement(\’li\’)
li.className = \’right_word\’
document.querySelector(\’#talk_list\’).appendChild(li)
li.innerHTML = `<img src=\”lib/img/person02.png\” /> <span>${val}</span></li>`
ipt.value=\’\’
// 滚动到页面最下面
document.querySelector(\’ul\’).scrollTop = document.querySelector(\’ul\’).scrollHeight

此时再进行校验下：

二、以上的源码（图片素材不方便传，自己随便定义啦~）

<!DOCTYPE html>
<html lang=\”en\”>

<head>
<meta charset=\”UTF-8\” />
<meta name=\”viewport\” content=\”width=device-width, initial-scale=1.0\” />
<meta http-equiv=\”X-UA-Compatible\” content=\”ie=edge\” />
<title>案例_问答机器人</title>
<link rel=\”stylesheet\” href=\”https://unpkg.com/reset.css@2.0.2/reset.css\” rel=\”external nofollow\” />
<style>
body {
margin: 0;
font-family: \’Microsoft YaHei\’, sans-serif;
}

.wrap {
position: absolute;
width: 100%;
height: 100%;
overflow: hidden;
}

.header {
height: 55px;
background: linear-gradient(90deg, rgba(246, 60, 47, 0.6), rgba(128, 58, 242, 0.6));
overflow: hidden;
}

.header h3 {
color: #faf3fc;
line-height: 55px;
font-weight: normal;
float: left;
letter-spacing: 2px;
margin-left: 25px;
font-size: 18px;
text-shadow: 0px 0px 5px #944846;
}

.header img {
float: right;
margin: 7px 25px 0 0;
border-radius: 20px;
box-shadow: 0 0 5px #f7f2fe;
}

.main {
position: absolute;
left: 0;
right: 0;
top: 55px;
bottom: 55px;
background-color: #f4f3f3;
box-sizing: border-box;
overflow: hidden;
}

.talk_list {
width: 100%;
height: 100%;
overflow-y: auto;
}

.talk_list li {
overflow: hidden;
margin: 20px 0px 30px;
display: flex;
}

.talk_list .left_word {
justify-content: flex-start;
}

.talk_list .left_word img {
margin-left: 20px;
width: 44px;
height: 44px;
}

.talk_list .left_word span {
background-color: #fe9697;
padding: 10px 15px;
border-radius: 12px;
font-size: 16px;
color: #fff;
margin-left: 15px;
margin-right: 20px;
position: relative;
line-height: 24px;
}

.talk_list .left_word span:before {
content: \’\’;
position: absolute;
left: -8px;
top: 12px;
width: 13px;
height: 12px;
background: url(\’../day01/lib/img/corner01.png\’) no-repeat;
}

.talk_list .right_word {
justify-content: flex-end;
}

.talk_list .right_word img {
margin-right: 20px;
width: 44px;
height: 44px;
}

.talk_list .right_word span {
background-color: #fff;
padding: 10px 15px;
border-radius: 12px;
font-size: 16px;
color: #000;
margin-right: 15px;
margin-left: 20px;
position: relative;
line-height: 24px;
}

.talk_list .right_word span:before {
content: \’\’;
position: absolute;
right: -8px;
top: 12px;
width: 13px;
height: 12px;
background: url(\’../day01/lib/img/corner02.png\’) no-repeat;
}

.footer {
width: 100%;
height: 55px;
left: 0px;
bottom: 0px;
background-color: #fff;
position: absolute;
display: flex;
align-items: center;
padding: 0 10px;
box-sizing: border-box;
}

.input_txt {
height: 37px;
border: 0px;
background-color: #f4f3f3;
border-radius: 8px;
padding: 0px;
margin: 0 10px;
outline: none;
text-indent: 15px;
flex: 1;
}

.input_sub {
width: 70px;
height: 37px;
border: 0px;
background-color: #fe9697;
margin: 0;
border-radius: 8px;
padding: 0px;
outline: none;
color: #fff;
cursor: pointer;
}
</style>

</head>

<!– 我 –>
</ul>
</div>
<!– 底部消息编辑区域 –>
<div class=\”footer\”>
<img src=\”lib/img/person02.png\” alt=\”icon\” />
<input type=\”text\” placeholder=\”说的什么吧…\” class=\”input_txt\” id=\”ipt\” />
<input type=\”button\” value=\”发送\” class=\”input_sub\” id=\”btnSend\” />
</div>
</div>
<script src=\”https://cdn.jsdelivr.net/npm/axios@0.27.2/dist/axios.min.js\”></script>
<script>

/*
实现人机交互步骤
1.沟通：通过创建节点的方法获取我说的话并渲染出来
2.将我说的话传进ajax服务器中
3.获取机器人说的话并且渲染出来
4.每次说完了都滚动到对话框最下面来
*/