如何使用iPhone的JSON框架以编程方式生成JSON [英] How to generate JSON programmatically using JSON framework for iPhone

问题描述

我正在创建一个应用程序，因为我需要向服务器发送JSON以获得一些响应.

I am creating an application in that I need to send a JSON to the server to get some response.

如何使用iPhone的 JSON框架生成JSON?

How to generate JSON using JSON Framework for iPhone?

还有哪些其他可能的方式?

What are the other possible ways?

推荐答案

创建对象的数组或字典，这些对象表示您要通过JSON发送的信息.完成后，将-JSONRepresentation发送到数组/字典.该方法返回一个JSON字符串，然后将其发送到服务器.

Create an array or dictionary of objects representing the information you want to send via JSON. Having done that, send -JSONRepresentation to the array/dictionary. That method returns a JSON string, and you send it to the server.

例如:

NSDictionary *o1 = [NSDictionary dictionaryWithObjectsAndKeys:
    @"some value", @"key1",
    @"another value", @"key2",
    nil];

NSDictionary *o2 = [NSDictionary dictionaryWithObjectsAndKeys:
    @"yet another value", @"key1",
    @"some other value", @"key2",
    nil];

NSArray *array = [NSArray arrayWithObjects:o1, o2, nil];

NSString *jsonString = [array JSONRepresentation];

// send jsonString to the server

执行上述代码后，jsonString包含:

After executing the code above, jsonString contains:

[
    {
        "key1": "some value",
        "key2": "another value"
    },
    {
        "key1": "yet another value",
        "key2": "some other value"
    }
]

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