html
<!DOCTYPE html>
<html lang="en">
<head><!-- 新 Bootstrap5 核心 CSS 文件 -->
<link rel="stylesheet" href="static/bootstrap-5.0.0-beta1-dist/css/bootstrap.min.css"><!-- 最新的 Bootstrap5 核心 JavaScript 文件 -->
<script src="static/bootstrap-5.0.0-beta1-dist/js/bootstrap.bundle.min.js"></script><script>function submitForm() {document.getElementById('myForm').submit();}function clearTextarea() {var textarea = document.getElementById('myTextarea');textarea.value = ''; // 清空 textarea 的内容}</script><meta charset="UTF-8"><title>Title</title><style>.form-control.input-lg {height: 500px;}</style></head>
<body><nav class="navbar navbar-expand-lg navbar-light bg-light navbar-dark bg-dark bg-dark"><div class="container-fluid"><a class="navbar-brand" href="#"><img src="static/glyph-iconset-master/svg/si-glyph-desktop.svg" alt="" width="30" height="30" class="d-inline-block align-top">工具大全</a><button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button><div class="collapse navbar-collapse" id="navbarNavDropdown"><ul class="navbar-nav"><li class="nav-item"><a class="nav-link active" aria-current="page" href="#">首页</a></li><li class="nav-item"><a class="nav-link" href="#">test1</a></li><li class="nav-item"><a class="nav-link" href="#">test2</a></li><li class="nav-item dropdown"><a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" role="button" data-bs-toggle="dropdown" aria-expanded="false">test3</a><ul class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink"><li><a class="dropdown-item" href="#">1</a></li><li><a class="dropdown-item" href="#">2</a></li><li><a class="dropdown-item" href="#">3</a></li></ul></li></ul></div><!-- <ul class="nav justify-content-end">-->
<!-- <li class="nav-item">-->
<!-- <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>-->
<!-- -->
<!-- </li>-->
<!-- </ul>--><div class="dropdown dropdown-menu-end">
<button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown">登出</button><ul class="dropdown-menu"><li><a class="dropdown-item" href="#">首页</a></li><li><a class="dropdown-item" href="#">注销</a></li></ul>
</div></div>
</nav><!--容器-->
<div class="container"><!-- 按钮--><div class="d-grid gap-2 d-md-block " ><button onclick="submitForm()" class="btn btn-primary" type="button" type="Submit">格式化</button><button onclick="clearTextarea()" class="btn btn-primary" type="button">清空输出框内容</button></div><h2>JSON 格式化工具</h2><div class="row align-items-start">
<!-- 文本框--><div class="col-6"><h5>输入</h5><form id="myForm" method="POST"><textarea class="form-control" id="deblock_udid" name="textarea_name" rows="30" style="min-width: 50%">{{ textarea_content }}</textarea></form></div><!-- 文本框--><div class="col-6"><h5>输出</h5><textarea class="form-control" id="myTextarea" name="deblock_udid" rows="30" style="min-width: 50%">{{ processed_data }}</textarea></div></div>
</div><div class="container"><div class="alert alert-light" role="alert">{% if error_message %}<p style="color: red;">Error: {{ error_message }}</p>{% endif %}
</div></div></body>
</html>
app.py
from flask import Flask, render_template, request
import jsonapp = Flask(__name__)@app.route('/', methods=['GET', 'POST'])
def index():if request.method == 'POST':textarea_content = request.form.get('textarea_name') # 获取提交的 textarea 内容print(textarea_content)parsed_data = Noneerror_message = Noneif textarea_content:try:parsed_data = json.loads(textarea_content)except json.decoder.JSONDecodeError as e:# 处理非法的 JSON 字符串error_message = str('格式非法')# 格式化输出 JSON 数据formatted_data = json.dumps(parsed_data, indent=4, ensure_ascii=False) if parsed_data else ''return render_template('student.html', textarea_content=textarea_content, processed_data=formatted_data,error_message=error_message) # 将内容和错误信息传递回前端页面else:return render_template('student.html')if __name__ == '__main__':app.run()
