如何在 Android 中使用改造创建 Json 对象并发送到服务器

Question

这是我的注册页面。我想通过 Json 对象或 bean 类使用 Retrofit 库将所有​​数据发布到服务器。我正在使用 Retrofit 1.9。

private void insertUser(String name, String password,String contact_Number,String email, String country_Code,String deviceId){
    //Here we will handle the http request to insert user to mysql db
    //Creating a RestAdapter
    RestAdapter adapter = new RestAdapter.Builder()
            .setEndpoint(Constants.BASE_URL) //Setting the Root URL
            .build(); //Finally building the adapter

    //Creating object for our interface
    RequestInterface api = adapter.create(RequestInterface.class);

    //Defining the method insertuser of our interface
    api.insertUser(

            //Passing the values by getting it from editTexts
            et_Name.getText().toString(),
            et_ContactNumber.getText().toString(),
            et_CountryCode.getText().toString(),
            et_Email.getText().toString(),
            et_Password.getText().toString(),
            et_DeviceId.getText().toString(),


            //Creating an anonymous callback
            new Callback<Response>() {
                @Override
                public void success(Response result, Response response) {

                    //On success we will read the server's output using bufferedreader
                    //Creating a bufferedreader object
                    BufferedReader reader = null;

                    //An string to store output from the server
                    String output = "";

                    try {
                        //Initializing buffered reader
                        reader = new BufferedReader(new InputStreamReader(result.getBody().in()));

                        //Reading the output in the string
                        output = reader.readLine();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

                    //Displaying the output as a toast
                    Toast.makeText(getActivity(), output, Toast.LENGTH_LONG).show();
                }



                @Override
                public void failure(RetrofitError error) {
                    //If any error occured displaying the error as toast
                    Toast.makeText(getActivity(), error.toString(),Toast.LENGTH_LONG).show();
                }
            }
        );
    }

}

这是我的接口类请求接口

@FormUrlEncoded
    @POST("/create_site_client.php")
    public void insertUser(
            @Field("name") String name,
            @Field("contact_no") String contact_Number,
            @Field("country_code") String country_Code,
            @Field("email") String email,
            @Field("password") String password,
            @Field("device_id") String device_id,

            Callback<Response> callback);

我想使用 Retrofit 制作登录和注册页面 当我在上面运行代码时，它给出错误：

{"status":"fail","error":{"error_code":1062,"error_message":"键 'contact_no' 的重复条目 '7777777777'"},"data":null}

我想将用户输入发送到服务器：{"name":"dfgfg","contact_no":"7777777777","country_code":"91","email":"dd@gmail.com", "密码":"123","device_id":"1234"}

Answer 1

请为您发送的数据粘贴 logcat。我从错误消息中观察到电话号码 7777777777 已经保存在您的服务器数据库中，并且它是唯一的。所以你得到了错误。请尝试使用其他真实电话号码。

Answer 2

1. 通过创建占位符类对象并在其中传递字符串值。

2. 如果我使用改造 1.9.0，你必须传递用户对象和回调，如下所示。

   User user = new User(name,email,contact_no,country_code,password,device_id);
   
   //Defining the method insertuser of our interface
   
   api.insertUser(user,new Callback<User>() {
   
       @Override
       public void success(User result, Response response) {
           BufferedReader reader = null;
   
           //An string to store output from the server
           String output = "";
   
           try {
               //Initializing buffered reader
               reader = new BufferedReader(new InputStreamReader(response.getBody().in()));
   
               //Reading the output in the string
               output = reader.readLine();
           } catch (IOException e) {
               e.printStackTrace();
           }
   
           //Displaying the output as a toast
           Toast.makeText(getActivity(), output, Toast.LENGTH_LONG).show();
   
       }
   

我的界面是这样的：

@POST("/create_site_client.php")
 void insertUser(@Body User user,Callback<User> cb);