单次请求的InputFormatter

# 示例代码（Python + Flask）
from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/submit', methods=['POST'])
def submit():
    data = request.get_json()
    if not data or 'name' not in data or 'age' not in data:
        return jsonify({'error': 'Invalid input data'}), 400
    # 处理数据
    return jsonify({'message': 'Data received successfully'}), 200

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

# 示例代码（Python + Flask + SQLAlchemy）
from flask import Flask, request, jsonify
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///example.db'
db = SQLAlchemy(app)

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80), nullable=False)
    age = db.Column(db.Integer, nullable=False)

@app.route('/add_user', methods=['POST'])
def add_user():
    data = request.get_json()
    if not data or 'name' not in data or 'age' not in data:
        return jsonify({'error': 'Invalid input data'}), 400
    new_user = User(name=data['name'], age=data['age'])
    db.session.add(new_user)
    db.session.commit()
    return jsonify({'message': 'User added successfully'}), 201

if __name__ == '__main__':
    db.create_all()
    app.run(debug=True)