Ios 如何在Swift中发出读取多个参数的post请求？
我试图向RESTAPI发送一个JSON主体，但它只读取第一个参数，根本无法识别JSON的其余部分。我测试了JSON正文的其他部分的错误输入，并没有像通常那样出现错误Ios 如何在Swift中发出读取多个参数的post请求？,ios,json,swift,http,post,Ios,Json,Swift,Http,Post,我试图向RESTAPI发送一个JSON主体，但它只读取第一个参数，根本无法识别JSON的其余部分。我测试了JSON正文的其他部分的错误输入，并没有像通常那样出现错误 func postRequest(classroomID: String, email: String, vote: String){ //declare parameter as a dictionary which contains string as key and value combination. le
func postRequest(classroomID: String, email: String, vote: String){
//declare parameter as a dictionary which contains string as key and value combination.
let parameters = [
"classroomID": classroomID,
"LastUpdated": "2020-01-01",
"TheVoteData"[
"Email": email,
"TheVote": vote
]
]
//create the url with NSURL
let url = URL(string: "https://www.api-gateway/dynamoDB/resource")!
//create the session object
let session = URLSession.shared
//now create the Request object using the url object
var request = URLRequest(url: url)
request.httpMethod = "POST" //set http method as POST
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to data object and set it as request body
} catch let error {
print(error.localizedDescription)
}
//HTTP Headers
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
//create dataTask using the session object to send data to the server
let task = session.dataTask(with: request, completionHandler: { data, response, error in
guard error == nil else {
completion(nil, error)
return
}
guard let data = data else {
return
}
do {
//create json object from data
guard let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? [String: Any] else {
return
}
print(json)
completion(json, nil)
} catch let error {
print(error.localizedDescription)
}
})
task.resume()
}
编辑：我可以通过配置API网关将输入作为简单数组而不是字典数组来解决问题。非常感谢所有花时间帮助我的人 我认为您在parameters中提供的JSON数据无效（我使用jsonlint.com进行检查），请尝试以下方法：
func postRequest(classroomID: String, email: String, vote: String){
//declare parameter as a dictionary which contains string as key and value combination.
let parameters: [String:Any] = [
"classroomID": classroomID,
"LastUpdated": "2020-01-01",
"TheVoteData":[
"Email": email,
"TheVote": vote
]
]
//create the url with NSURL
let url = URL(string: "https://www.api-gateway/dynamoDB/resource")!
//now create the Request object using the url object
var request = URLRequest(url: url)
request.httpMethod = "POST" //set http method as POST
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to data object and set it as request body
} catch let error {
print(error.localizedDescription)
}
//HTTP Headers
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let jsonData = try! JSONSerialization.data(withJSONObject: parameters, options: [])
//create dataTask using the session object to send data to the server
let task = URLSession.shared.uploadTask(with: request, from: jsonData) { data, response, error in
if let data = data, let dataString = String(data: data, encoding: .utf8) {
print(dataString)
}
//Returns HHTP response if
if let httpResponse = response as? HTTPURLResponse {
print(httpResponse.statusCode)
}
}
task.resume()
}
我认为您在parameters中提供的JSON数据无效（我使用jsonlint.com进行检查），请尝试以下方法：
func postRequest(classroomID: String, email: String, vote: String){
//declare parameter as a dictionary which contains string as key and value combination.
let parameters: [String:Any] = [
"classroomID": classroomID,
"LastUpdated": "2020-01-01",
"TheVoteData":[
"Email": email,
"TheVote": vote
]
]
//create the url with NSURL
let url = URL(string: "https://www.api-gateway/dynamoDB/resource")!
//now create the Request object using the url object
var request = URLRequest(url: url)
request.httpMethod = "POST" //set http method as POST
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to data object and set it as request body
} catch let error {
print(error.localizedDescription)
}
//HTTP Headers
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let jsonData = try! JSONSerialization.data(withJSONObject: parameters, options: [])
//create dataTask using the session object to send data to the server
let task = URLSession.shared.uploadTask(with: request, from: jsonData) { data, response, error in
if let data = data, let dataString = String(data: data, encoding: .utf8) {
print(dataString)
}
//Returns HHTP response if
if let httpResponse = response as? HTTPURLResponse {
print(httpResponse.statusCode)
}
}
task.resume()
}
将request.httpBody数据转换为字符串并打印（并告诉我们它是什么）。您是否有API规范或服务器上显示JSON的代码expecting@LouFranco打印request.httpBody数据时得到的唯一结果是132字节。。此外，服务器需要{“ClassroomId”：“api测试”，“最新更新”：“2020-05-07”，“TheVoteData”：[{“电子邮件”：”123@abc.com，“Vote”：“Got it”}]}将request.httpBody数据转换为字符串并打印（并告诉我们它是什么）.您是否有API规范或服务器上显示JSON的代码expecting@LouFranco打印request.httpBody数据时得到的唯一结果是132字节。。此外，服务器需要{“ClassroomId”：“api测试”，“最新更新”：“2020-05-07”，“TheVoteData”：[{“电子邮件”：”123@abc.com，“投票”：“明白了”}]}你是对的-我的json不正确！我尝试了这个方法，但仍然得到了相同的结果：classroomid被发布到DB中，但其他的都没有。另一个人问服务器需要什么，这就是--{“ClassroomId”：“api测试”，“最新更新”：“2020-05-07”，“TheVoteData”：[{“Email”：”email@email.email“，”投票“：“明白”}]}--我想知道是否有问题，因为此格式与预期格式略有不同？@JacobBarbush确实如此，您必须确认发送的类型是否与服务器预期的类型相同。例如，如果您的模型（在服务器上）需要一个整数，但您在swift代码中发送了一个字符串，则会出现服务器错误。另外，请确保您的服务器需要一个动态值。如果您的服务器正期待“email@email.email“，它将在尝试发布任何其他值/字符串时失败。你是对的-我的json不正确！我尝试了这个方法，但仍然得到了相同的结果：classroomid被发布到DB中，但其他的都没有。另一个人问服务器需要什么，这就是--{“ClassroomId”：“api测试”，“最新更新”：“2020-05-07”，“TheVoteData”：[{“Email”：”email@email.email“，”投票“：“明白”}]}--我想知道是否有问题，因为此格式与预期格式略有不同？@JacobBarbush确实如此，您必须确认发送的类型是否与服务器预期的类型相同。例如，如果您的模型（在服务器上）需要一个整数，但您在swift代码中发送了一个字符串，则会出现服务器错误。另外，请确保您的服务器需要一个动态值。如果您的服务器正期待“email@email.email，它将在尝试发布任何其他值/字符串时失败。