使用Swift进行iOS开发时，不可避免的要进行远程的数据获取和提交。
其数据请求的方式既可能是POST也可能是GET。同不管是POST还是GET又可以分为同步请求和异步请求。
下面通过四个例子来进行演示。
（2）异步请求
30
25
（2）异步请求
41
1，使用POST方式提交数据（用户id和分数）
（1）同步请求
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//保存分数
func
savescore(score:
Int
,userid:
String
)
{
let
urlString:
=
"http://www.hangge.com/"
var
url:
NSURL
!
url =
(string:urlString)
request =
NSMutableuRLRequest
(
URL
:url)
body =
"score=\(score)&user=\(userid)"
//编码POST数据
postData = body.dataUsingEncoding(
NSUTF8StringEncoding
)
//保用 POST 提交
request.
HTTPMethod
"POST"
HTTPBody
= postData
//响应对象
response:
NSURLResponse
?
do{
//发出请求
received:
NSData
? = try
NSURLConnection
.sendSynchronousRequest(request,
returningResponse: &response)
datastring =
Nsstring
(data:received!,encoding:
)
print
(datastring)
}catch
error
as
NSError
{
//打印错误消息
(error.code)
(error.description)
}
}
|
（2）异步请求
|
import
UIKit
class
scoreController
:
NSObject
ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.5em!important; margin:0px!important; overflow:visible!important; padding:1px 0px!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,
NSURLConnectionDataDelegate
{
//保存分数
)
{
"http://www.hangge.com/savescore.php"
!
(string:urlString)
:url)
"score=\(score)&user=\(userid)"
//编码POST数据
NSASCIIStringEncoding
)
//保用 POST 提交
"POST"
= postData
conn:
!
conn =
(request: request,delegate:
self
)
conn.start()
(conn)
}
connection(connection:
ottom:auto!important; float:none!important; height:auto!important; left:auto!important; line-height:1.5em!important; margin:0px!important; overflow:visible!important; padding:1px 0px!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; font-family:Consolas,didReceiveResponse response:
)
(
"请求成功！"
);
(response)
}
)
{
"请求成功1！"
);
(data:data,monospace!important; min-height:auto!important">)
(datastring)
}
connectionDidFinishLoading(connection:
)
{
"请求成功2！"
);
}
}
|
2，使用GET方式获取数据（用户id对应的分数）
（1）同步请求
|
//获取分数
getscore(user:
){
"http://www.hangge.com/getscore.php?user=\(user)"
"GET"
//响应对象
?
do{
//发出请求
returningResponse: &response)
)
(datastring)
{
//打印错误消息
(error.code)
(error.description)
}
}
|
（2）异步请求
|
//获取分数
"http://hangge.com/getscore.php?user=\(user)"
"GET"
!
)
conn.start()
(conn)
}
)
{
);
(response)
)
{
);
)
(datastring)
//解析 JSON 数据
do {
json :
AnyObject
! = try
NSJSONSerialization
.
JSONObjectWithData
(data,
options:
NSJSONReadingOptions
AllowFragments
)
score = json.objectForKey(
"score"
)
as
!
Int
(score)
{
//打印错误消息
(error.code)
(error.description)
}
}
)
{
);
}
}
|
原文出自： www.hangge.com 转载请保留原文链接： http://www.hangge.com/blog/cache/detail_670.html