使用Android方法在Android上使用Retrofit在MySQL中插入值[重复]

Question

这个问题在这里已有答案：

• How to get data received in Flask request 16个答案

我正在Flask中编写一个API，它接收用户详细信息并将其插入数据库。我在Android上使用Retrofit来处理这个API。一切正常，但不知何故用户输入值没有传递给API。数据库使用空值更新，而不是用户提供的值。

如果我使用Postman在URL中手动添加参数值，即（hostname / add_user？username =“abc”＆password =“abc”....），数据库会更新

我是新手改造的，所以我不知道我到底在哪里错了！

Flask API：

@app.route('/add_user', methods=['POST'])
def add_user():

username    = request.args.get('username')
password    = request.args.get('password')
name        = request.args.get('name')
age         = request.args.get('age')
gender      = request.args.get('gender')
cnumber     = request.args.get('cnumber')
address     = request.args.get('address')
city_id     = request.args.get('city_id')
email       = request.args.get('email')

t   = (username,password,name,age,gender,cnumber,address,city_id,email) #Storing all the received values in tuple

cur = mysql.connection.cursor()

cur.execute("INSERT INTO users (username,password,name,age,gender,contactnumber,address,city_id,email) values (%s,%s,%s,%s,%s,%s,%s,%s,%s)", t)
    mysql.connection.commit()

    resp = jsonify("User added successfully")
    resp.status_code = 200
    resp.headers['Success'] = 'Success'

    return resp

JAVA代码：

Call<ResponseBody> call = API_Client.getInstance().getAPI().add_user(username.getText().toString(), password.getText().toString(), name.getText().toString(), Integer.parseInt(age.getText().toString()), gender.getSelectedItem().toString(), cnumber.getText().toString(), address.getText().toString(), city.getId(), email.getText().toString());
                    call.enqueue(new Callback<ResponseBody>() {
                        @Override
                        public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                            try {
                                String s = response.body().string();
                                Toast.makeText(UserSignup.this, s, Toast.LENGTH_SHORT).show();

                            } catch (IOException e) {
                                e.printStackTrace();
                            }
                        }

                        @Override
                        public void onFailure(Call<ResponseBody> call, Throwable t) {

                            Toast.makeText(UserSignup.this, t.getMessage().toString(), Toast.LENGTH_SHORT).show();
                        }
                    });

API接口：

@FormUrlEncoded
@POST("add_user")
Call<ResponseBody> add_user(

        @Field("username") String username,
        @Field("password") String password,
        @Field("name") String name,
        @Field("age") int age,
        @Field("gender") String gender,
        @Field("cnumber") String cnumber,
        @Field("address") String address,
        @Field("city_id") int city_id,
        @Field("email") String email
);

}

Answer 1

我认为这必须是GET请求hostname/add_user?username="abc"&password="abc"。将您的API接口更改为此或仅使用@Field替换@Query

@GET("add_user")
Call<ResponseBody> add_user(

        @Query("username") String username,
        @Query("password") String password,
        @Query("name") String name,
        @Query("age") int age,
        @Query("gender") String gender,
        @Query("cnumber") String cnumber,
        @Query("address") String address,
        @Query("city_id") int city_id,
        @Query("email") String email
);