Android的改造|邮政自定义对象（JSON发送到服务器）

问题描述

我在想，我怎么可能去使用改造发送自定义对象到我的API，这样的事情：

I was wondering how could I go about sending a custom object to my API using retrofit, something like this:

@POST(URL_ORDERS)
public void newOrder(Order order, Callback<Boolean> success);

下面就是我会分析它在我的服务器

Here's how I'd parse it on my server

public function store()
    {
    if(Auth::check()){
        $order = Input::get();
        $table = $order->table;
        $items = $order->items;

        if(!$table->taken){
            $table->taken = true;

            $order->push();
            $table->push();

            return true;
        }
    }

    return false;
}

出于某种原因，我得到

For some reason I'm getting

06-04 20:45:59.275    6085-6306/com.tesis.restapp.restapp W/dalvikvm﹕ threadid=11: thread exiting with uncaught exception (group=0x40aae210)
06-04 20:45:59.285    6085-6306/com.tesis.restapp.restapp E/AndroidRuntime﹕ FATAL EXCEPTION: Retrofit-Idle
    java.lang.IllegalArgumentException: RestAppApiInterface.newOrder: No Retrofit annotation found. (parameter #1)
            at retrofit.RestMethodInfo.methodError(RestMethodInfo.java:120)
            at retrofit.RestMethodInfo.parameterError(RestMethodInfo.java:124)
            at retrofit.RestMethodInfo.parseParameters(RestMethodInfo.java:443)
            at retrofit.RestMethodInfo.init(RestMethodInfo.java:131)

我猜我希望它做的就是以某种方式改变我的对象为JSON并将其发送到我的服务器。我在这接近正确的方式？

I guess what I want it do to is to somehow transform my object into a json and send it to my server. Am I approaching this the right way?

推荐答案

该错误是不提供有关你的订购 @Body 注释参数。将其更改为：

The error is from not providing the @Body annotation on your Order parameter. Change it to:

@POST(URL_ORDERS)
public void newOrder(@Body Order order, Callback<Boolean> success);

改造使用序列化和默认反序列化JSON。 GSON默认情况下，序列化使用的变量名，但他们可以使用注释来改变 @SerializedName（replacement_name）。

Retrofit uses Gson to serialize and deserialize JSON by default. Gson uses variable names by default for serialization, but they can be changed using the annotation @SerializedName("replacement_name").

例如，如果你的订单类是这样的：

For Example, If your Order class looked like this:

public class Order {
    @SerializedName("custom_id")
    private int id;
    private String name;
    private List<Item> items;
}

public class Item {
    private int id;
    private String name;
}

然后GSON将自动序列化到

Then Gson would automatically serialize that to

{
    "custom_id": 1,
    "name": "Hello Object",
    "items": [
        {
            "id": 1,
            "name": "Hello Item"
        }
    ]
}

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