@blue.route(‘/user/<int:id>/‘,methods=["GET","POST","PUT","DELETE"])
def user(id):
# 查询数据
???if request.method == "GET":
???????user = User.query.get(id)
???????userdict = user.getstr()
???????data = {
???????????"message":"successfully",
???????????"status":"201",
???????}
???????if user:
???????????data["user"] = userdict
???????????return jsonify(data),200
???????data["message"] = "该用户不存在"
???????data[‘status‘] = "404"
???????return jsonify(data),404
# 添加数据
???elif request.method == "POST":
???????username = request.form.get("username")
???????userage = request.form.get("userage")
???????users = User.query.filter(User.u_name == username).all()
???????data = {
???????}
???????if len(users) > 0:
???????????data["message"] = "用户已存在"
???????????data["status"] = "777"
???????????return jsonify(data),409
???????user = User()
???????user.u_name = username
???????user.u_age = userage
???????data["message"] = "用户创建成功"
???????data["status"] = "201"
???????db.session.add(user)
???????db.session.commit()
???????return jsonify(data),201
# 修改数据
???elif request.method == "PUT":
???????username = request.form.get("username")
???????userage = request.form.get("userage")
???????user = User.query.get(id)
???????print(user)
???????data = {
???????}
???????if user:
???????????data["message"] = "信息修改成功"
???????????data["status"] = ‘200‘
???????????user.u_name = username
???????????user.u_age = userage
???????????db.session.add(user)
???????????db.session.commit()
???????????return jsonify(data),200
???????data["message"] = "用户不存在"
???????data["status"] = "404"
???????return jsonify(data),404
# 删除数据
???elif request.method == "DELETE":
???????user = User.query.get(id)
???????data = {
???????}
???????if user:
???????????data["message"] = "信息删除成功"
???????????data["status"] = "200"
???????????db.session.delete(user)
???????????db.session.commit()
???????????return jsonify(data),200
flask实现关于json的get/post/put/delete方法
原文地址：https://www.cnblogs.com/q02062418/p/9783501.html