［背景］
尝试在Swift中去执行HTTP的POST，用的是库：
代码如下：
let params = ["phone": "\(nameTF.text)", "password": "\(psdTF.text)"]
NSLog("params = \(params)")
NSLog("LOGIN_URL=\(LOGIN_URL)")
do {
let opt = try HTTP.POST(LOGIN_URL, parameters: params, requestSerializer: JSONParameterSerializer())
//opt.onFinish = { response in
opt.start { response in
if let err = response.error {
print("error: \(err.localizedDescription)")
return //also notify app of failure as needed
}
print("opt finished: \(response.description)")
}
} catch let error {
NSLog("got an error creating the request: \(error)")
}然后出错：
2015-10-19 13:56:48.229 [6694:1225161] App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file. error: The resource could not be loaded because the App Transport Security policy requires the use of a secure connection.
如图：
［解决过程］
1.搜：
SwiftHTTP POST App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app’s Info.plist file.
参考：
“To be clear, developers should only consider disabling ATS if other approaches to comply with ATS standards are unsuccessful. Apple has provided a tech note describing different approaches, including the ability to selectively enable ATS for a list of provided HTTPS sites.”
去看看info.plist：
设置为Dictionary
再去添加子项：
注意要 先点击 左边的变成下拉箭头 再点击右边的加号，添加子项
然后设置类型为Boolean，值为YES
然后再去运行看看结果
然后就可以继续执行了：
（此处post出错，和本问题无关，表示post操作正常执行了）
后来又遇到一次，再去设置：
然后可以查看原始值：
效果是：
即：
变成前面说的：NSAllowsArbitraryLoads了。
［总结］
此处HTTP的POST出现警告后，去info.plist中：
右击
－》Add Row
－》键值输入：NSAppTransportSecurity
－》设置类型为Dictionary
－》点击NSAppTransportSecurity左边按钮变成下拉状态
－》点击右边的加号去新家一个子项
－》名为：NSAllowsArbitraryLoads
－》设置NSAllowsArbitraryLoads的值为Boolean类型，值为YES
即可。
之后的HTTP的POST即可正常执行了。
关于相关内容的解释，详见官网：
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