Sharing of best practices and techniques for building mind map applications with PHP and Vue
Introduction:
Brain map is a commonly used information organization tool that can help We organize and clarify complex thinking logic. With the development of the Internet, Web-based mind mapping applications are becoming more and more popular. This article will share some best practices and techniques for building mind mapping applications using PHP and Vue to help readers quickly build fully functional and easy-to-maintain mind mapping applications.
1. Front-end technology selection
The brain map application mainly consists of front-end and back-end. In terms of front-end technology selection, we chose Vue.js as the main development framework. Vue.js is easy to use, flexible, and high-performance, and is suitable for building complex interactive applications. At the same time, we also use Element UI as the UI framework and use its rich component and style library to speed up the development process.
In the code example, we use NPM to install Vue.js and Element UI libraries, and introduce related resources through CDN. Then, we create a Vue instance and use the components of Element UI in the template to build the basic interface of the mind mapping application.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>脑图应用</title>
<!-- 引入Vue.js和Element UI的CDN资源 -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
</head>
<body>
<div id="app">
<el-tree :data="treeData" :props="treeProps"></el-tree>
</div>
<script>
new Vue({
el: '#app',
data() {
return {
treeData: [
{
label: 'Node 1',
children: [
{
label: 'Node 1-1',
children: [
{
label: 'Node 1-1-1'
},
{
label: 'Node 1-1-2'
}
]
},
{
label: 'Node 1-2'
}
]
},
{
label: 'Node 2'
}
],
treeProps: {
label: 'label',
children: 'children'
}
}
}
})
</script>
</body>
</html>Copy after login
2. Back-end technology selection
In terms of back-end technology selection, we chose PHP as the server-side language. PHP is a cross-platform, open source scripting language with rich extension modules and powerful database support, which is very suitable for building Web applications. We use PHP's file operation and database operation modules to persistently store brain map data and realize user brain map data management.
In the code example, we use the PDO extension to connect to the database and perform simple CRUD operations. We use SQLite as a sample database, create a data table by executing SQL statements, and insert brain map data. We then use PHP's file manipulation module to persist the data to the file system.
<?php
$database = new PDO('sqlite:brainmap.db');
$database->exec('CREATE TABLE IF NOT EXISTS nodes (id INTEGER PRIMARY KEY AUTOINCREMENT, parent_id INTEGER, label TEXT)');
// 查询脑图数据
$stmt = $database->prepare('SELECT * FROM nodes');
$stmt->execute();
$treeData = $stmt->fetchAll(PDO::FETCH_ASSOC);
// 插入脑图数据
$stmt = $database->prepare('INSERT INTO nodes (parent_id, label) VALUES (?, ?)');
$stmt->execute([1, 'Node 1']);
$stmt->execute([2, 'Node 2']);
// 将脑图数据持久化到文件系统中
file_put_contents('brainmap.json', json_encode($treeData));
?>Copy after login
3. Data interaction and real-time update
Brain mapping applications usually require real-time interaction and update of data. We can use the component communication mechanism and Ajax technology provided by Vue.js to achieve this.
In the code example, we use the event mechanism provided by Vue.js to listen to the user's mind map node addition event, send the new node data to the server through Ajax, and update the database and file system data.
new Vue({
el: '#app',
data() {
return {
...
}
},
methods: {
handleNodeAdd(data) {
this.treeData.push(data); // 更新前端数据
this.$http.post('/api/node/add', data).then((response) => {
console.log(response.data); // 更新后端数据库
// 更新文件系统数据
this.$http.get('/api/nodes').then((response) => {
this.treeData = response.data;
});
});
}
}
})Copy after login
In the back-end code, we use corresponding routing and controllers to handle requests for adding brain map node data, and perform corresponding database and file system updates.
<?php
// 处理脑图节点增加请求
$app->post('/api/node/add', function($request, $response) use ($database) {
$data = $request->getParsedBody();
$stmt = $database->prepare('INSERT INTO nodes (parent_id, label) VALUES (?, ?)');
$stmt->execute([$data['parent_id'], $data['label']]);
// 返回新的节点ID
return $response->write($database->lastInsertId());
});
// 处理脑图数据请求
$app->get('/api/nodes', function($request, $response) {
$treeData = json_decode(file_get_contents('brainmap.json'), true);
return $response->withJson($treeData);
});
?>Copy after login
Conclusion:
By building a mind map application with PHP and Vue, we can quickly build a fully functional and easy-to-maintain mind map application. This article introduces best practices and code examples for front-end and back-end technology selection, and discusses solutions for data interaction and real-time updates. I hope this article can help readers gain an in-depth understanding of the development process of mind mapping applications, and provide readers with reference for their actual development work.
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