Question

我在我的项目中使用 Retrofit 库，在 MySQL 数据库中添加一行，我在 @POST方法方面遇到了一些问题

这是我在带有POST方法的服务器上的文件 test_retro_post.php 中的PHP代码：

<?php
$response = array();
if (isset($_POST['id']) && isset($_POST['name']) && isset($_POST['price'])) {

$id = $_POST['id'];
$name = $_POST['name'];
$price = $_POST['price'];

// include db connect class
require_once __DIR__ . '/db_connect.php';

// connecting to db
$db = new DB_CONNECT();

// mysql inserting a new row
$result = mysql_query("INSERT INTO test_retro(id, name, price) VALUES('$id', '$name', '$price')");


if ($result) {
    // successfully inserted into database
    $response["success"] = 1;
    $response["message"] = "Product successfully created.";

    // echoing JSON response
    echo json_encode($response);
} else {
    // failed to insert row
    $response["success"] = 0;
    $response["message"] = "Oops! An error occurred.";


    echo json_encode($response);
}
} else {

$response["success"] = 0;
$response["message"] = "Required field(s) is missing";
echo json_encode($response);
}
?>

使用自定义JSONparser发送通常的HttpRequest，一切正常：

        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("id", id));
        params.add(new BasicNameValuePair("name", name));
        params.add(new BasicNameValuePair("price", price));

        // getting JSON Object
        // url_create_product is URL to my PHP file with POST method


        JSONObject json = jsonParser.makeHttpRequest(url_create_product,
                "POST", params);

但使用Retrofit时出了点问题。未添加新行。这是 Api_post.java 接口，改造@POST方法：

 public interface Api_post{
    @POST("/test_retro/test_retro_post.php")
   Call<RequestBody> createProd(@Body RequestBody body);

我的RequestBody类（RequestBody.java）：

public class RequestBody{
  int id;
  String name;
  int price;

RequestBody(int id, String name, int price){
    this.id=id;
    this.name = name;
    this.price = price;
}

public int getPrice() {
    return price;
}

public void setPrice(int price) {
    this.price = price;
}

public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

}

最后在活动中调用Retrofit：

 Retrofit restAdapter = new Retrofit.Builder()
            .baseUrl(Url.BASE_URL)
            .addConverterFactory(GsonConverterFactory.create())
            .build(); 
  Api_post api_post = restAdapter.create(Api_post.java);
  Call<RequestBody> call = api_post.createProd(new RequestBody(3, "prod_3", 300);

然后在AsyncTask中执行此调用：

call.execute();

MySQL DB中的新行没有添加。请告诉我这段代码有什么问题？也许我需要自定义转换器？

Retrofit Android在MySQL中添加新行

0 个答案: