先看下请求的接口
一般用户修改头像都是修改的头像的连接,这里我们后台是直接上传的文件,所以我就基于Alamofire封装了一个带有文件参数的网络请求方法
//MARK:-----------file请求-------------//
class func requestFile(urlString:String,params:[String:Any], method:HTTPMethod,success:@escaping(_ response:[String:Any])->()){
//这里是接口和参数
let url = "\(BASE_URL)\(api_common_mid)\(urlString)"
print("\(url)\n\(params)")
//
Alamofire.upload(multipartFormData: { (formdata) in
//这里因为不同接口的参数名肯定不一样,所以就用你传的参数名。
for (key,value) in params{
//然后formdata只接受Data所以这里转换一下
if let content = value as? String {
formdata.append(content.data(using: String.Encoding.utf8)!, withName: key)
}
// 如果是图片的话吧图片转化成Data
if let content = value as? UIImage{
formdata.append(content.getData(), withName: key)
}
}
}, to: url) { (result) in
switch result {
case .success(let upload, _, _):
upload.responseJSON { response in
//自己封装的处理请求返回的结果
self.responseApply(response, success: success)
}
case .failure(let encodingError):
print(encodingError)
}
}
}
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调用
NetworkTool.requestFile(urlString: api_my_modification,params: ["uid":"1","username":"xxxx","file":UIImage(named:"xxx.png")], method: .post) { (response) in
if let res = response["data"] as? Int{
if res == 1 {
showSuccess("修改成功")
self.ischangedImage = false
//跟新用户信息
self.update_request()
return
}
showError("修改失败")
}else{
showError("修改失败")
}
}
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注:图片转Data有可能会为空,解决办法是把要转换的图片重新绘制下就行了
extension UIImage{
//MARK:-----------图片转data-------------//
func getData() -> Data{
let data = UIImageJPEGRepresentation(self.getNewImage(), 0.9)
return data!
}
//MARK:-----------重新绘制一下图形-------------//
fileprivate func getNewImage() -> UIImage{
let w = self.size.width
let h = self.size.height
UIGraphicsBeginImageContext(self.size)
self.draw(in: CGRect(x: 0, y: 0, width: w, height: h))
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage!
}
}
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