Swift|Swift 重构（URL 参数增删改查） Swift重构：URL参数增删改查

遇到 url query items 为 nil 的问题，解决方法：对链接进行编码即可：

： let aString = "链接" let aUrl = NSURL(string: aString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!) DDLog(aUrl?.queryParameters)

【Swift|Swift 重构（URL 参数增删改查）】URL 参数增删改查

let absoluteString = "iop://Goods?openNames=30027&activeName=960001" switch absoluteString { case let value where absoluteString.hasPrefix("iop://Goods"): DDLog(value) if var URL = URL(string: value) { DDLog(URL.queryParameters)URL = URL.appendingQueryParameters(["token": "1111111"]) //URL.appendQueryParameters(["token": "1111111"]) DDLog("append", URL)URL = URL.removingQueryParameter(for: ["token", "activeName"]) //URL.removeQueryParameter(for: ["token", "activeName"]) DDLog("delete", URL) }default: break }//testFunc()[line 146]: iop://Goods?openNames=30027&activeName=960001 //testFunc()[line 148]: Optional(["openNames": "30027", "activeName": "960001"]) //testFunc()[line 152]: append, iop://Goods?openNames=30027&activeName=960001&token=1111111 //testFunc()[line 156]: delete, iop://Goods?openNames=30027

import UIKitpublic extension URLComponents {///查询参数 var queryParameters: [String: String]? { guard let queryItems = queryItems else { return nil }var dic = [String: String]() for item in queryItems { dic[item.name] = item.value } return dic }///查询对应参数值 func queryValue(for key: String) -> String? { return queryItems? .first(where: { $0.name == key })? .value }///追加查询参数 mutating func appendingQueryParameters(_ parameters: [String: String]) -> URL { queryItems = (queryItems ?? []) + parameters.map { URLQueryItem(name: $0, value: $1) } return url! }///删除查询参数 mutating func removingQueryParameters(for keys: [String]) -> URL { var dic = [String: String]()queryItems? .filter({ !keys.contains($0.name) }) .forEach({ dic[$0.name] = $0.value })queryItems = [] + dic.map { URLQueryItem(name: $0, value: $1) } return url! }}public extension URL {///查询参数 var queryParameters: [String: String]? { guard let components = URLComponents(url: self, resolvingAgainstBaseURL: false) else { return nil } return components.queryParameters }///查询对应参数值 func queryValue(for key: String) -> String? { return URLComponents(string: absoluteString)?.queryValue(for: key) }///追加查询参数 func appendingQueryParameters(_ parameters: [String: String]) -> URL { var components = URLComponents(url: self, resolvingAgainstBaseURL: true)! return components.appendingQueryParameters(parameters) }///追加查询参数 mutating func appendQueryParameters(_ parameters: [String: String]) { self = appendingQueryParameters(parameters) }func removingQueryParameters(for keys: [String]) -> URL { var components = URLComponents(url: self, resolvingAgainstBaseURL: true)! return components.removingQueryParameters(for: keys) }///删除查询参数 mutating func removeQueryParameters(for keys: [String]) { self = removingQueryParameters(for: keys) }}//@objc public extension NSURLComponents { // /////查询参数 //var queryParameters: [String: String]? { //return (self as URLComponents).queryParameters //} /////追加查询参数 //func appendingQueryParameters(_ parameters: [String: String]) -> URL { //queryItems = (queryItems ?? []) + parameters.map { URLQueryItem(name: $0, value: $1) } //return url! //} // /////查询对应参数值 //func queryValue(for key: String) -> String? { //return (self as URLComponents).queryValue(for: key) //} //}@objc public extension NSURL {///查询参数 var queryParameters: [String: String]? { return (self as URL).queryParameters }///查询对应参数值 func queryValue(for key: String) -> String? { return (self as URL).queryValue(for: key) }///追加查询参数 func appendingQueryParameters(_ parameters: [String: String]) -> URL { return (self as URL).appendingQueryParameters(parameters) }///删除查询参数 func removingQueryParameters(for keys: [String]) -> URL { return (self as URL).removingQueryParameters(for: keys) }}