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44 lines
1.3 KiB
Markdown
44 lines
1.3 KiB
Markdown
# 使用自定义的ParameterEncoding
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Moya 使用字典作为JSON数据的根容器。但是有时候您需要将JSON数组作为根元素发送。这儿有一个解决方案，即通过编写您自己的参数编码 :
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定义一个struct或者一个class:
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```swift
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import Alamofire
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struct JSONArrayEncoding: ParameterEncoding {
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static let `default` = JSONArrayEncoding()
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func encode(_ urlRequest: URLRequestConvertible, with parameters: Parameters?) throws -> URLRequest {
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var request = try urlRequest.asURLRequest()
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guard let json = parameters?["jsonArray"] else {
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return request
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}
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let data = try JSONSerialization.data(withJSONObject: json, options: [])
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if request.value(forHTTPHeaderField: "Content-Type") == nil {
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request.setValue("application/json", forHTTPHeaderField: "Content-Type")
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}
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request.httpBody = data
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return request
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}
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}
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```
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配置target:
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```swift
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public var task: Task {
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switch self {
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case .api:
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return .requestParameters(parameters: ["jsonArray": ["Yes", "What", "abc"]], encoding: JSONArrayEncoding.default)
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}
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}
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```
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这将会把`.api`接口的数据作为JSON数组`["Yes", "What", "Abc"]`发送。更多信息, 查看讨论: [#467](https://github.com/Moya/Moya/issues/467)
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