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ios 网络请求中设置cookie
1. asihttprequest
asihttprequest 是一款极其强劲的 http 访问开源项目。让简单的 api 完成复杂的功能，如：异步请求，队列请求，gzip 压缩，缓存，断点续传，进度跟踪，上传文件，http 认证。
cookie的支持
如果 cookie 存在的话，会把这些信息放在 nshttpcookiestorage 容器中共享，并供下次使用。你可以用 [ asihttprequest setsessioncookies:nil ] ; 清空所有 cookies。当然，你也可以取消默认的cookie策略，而使自定义的cookie：
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-(nsmutablearray*)retruncookies{
nsdictionary *properties = [[[nsmutabledictionary alloc] init] autorelease];
[properties setvalue:[loginviewcontroller getlanguagetype:logininfo.lang] forkey:nshttpcookievalue];
[properties setvalue:@"bengguru.gaia.culture_code" forkey:nshttpcookiename];
[properties setvalue:@"" forkey:nshttpcookiedomain];
[properties setvalue:[nsdate datewithtimeintervalsincenow:60*60] forkey:nshttpcookieexpires];
[properties setvalue:@"" forkey:nshttpcookiepath];
nshttpcookie *cookie = [[[nshttpcookie alloc] initwithproperties:properties] autorelease];
return [nsmutablearray arraywithobject:cookie];
}
[request setrequestcookies:[self retruncookies]]; //发送cookies,根据用户的选择，返回相应语言。
2. nsmutableurlrequest(可以用于webview)
nsdictionary *properties = [[[nsmutabledictionary alloc] init] autorelease];
[properties setvalue:userid forkey:nshttpcookievalue];
[properties setvalue:@"benqguru.gaia.userid" forkey:nshttpcookiename];
[properties setvalue:@"" forkey:nshttpcookiedomain];
[properties setvalue:[nsdate datewithtimeintervalsincenow:60*60] forkey:nshttpcookieexpires];
[properties setvalue:@"/" forkey:nshttpcookiepath];
nshttpcookie *cookie = [[[nshttpcookie alloc] initwithproperties:properties] autorelease];
nsdictionary *properties1 = [[[nsmutabledictionary alloc] init] autorelease];
[properties1 setvalue:[loginviewcontroller getlanguagetype:logininfo.lang] forkey:nshttpcookievalue];
[properties1 setvalue:@"bengguru.gaia.culture_code" forkey:nshttpcookiename];
[properties1 setvalue:@"" forkey:nshttpcookiedomain];
[properties1 setvalue:[nsdate datewithtimeintervalsincenow:60*60] forkey:nshttpcookieexpires];
[properties1 setvalue:@"/" forkey:nshttpcookiepath];
nshttpcookie *cookie1 = [[[nshttpcookie alloc] initwithproperties:properties1] autorelease];
nsarray *cookies=[nsarray arraywithobjects:cookie,cookie1,nil];
nsdictionary *headers=[nshttpcookie requestheaderfieldswithcookies:cookies];
nsmutableurlrequest *request=[nsmutableurlrequest requestwithurl:[nsurl urlwithstring:[object valueforkey:@"url"]]];
[request setvalue:[headers objectforkey:@"cookie"] forhttpheaderfield:@"cookie"];
[webview loadrequest:request];
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