在flask python中解压缩JSON时出现键错误

from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/example', methods=['POST'])
def example():
    try:
        data = request.get_json()
        value = data['key']  # 替换为你需要的键名
        # 进行相应的操作
        return jsonify({'success': True})
    except KeyError:
        return jsonify({'error': '键错误'})

if __name__ == '__main__':
    app.run()