AFNetworkingErrorDomain 错误解决方法

首先我们来看一下错误信息:

Error Domain=AFNetworkingErrorDomain Code=-1011 "Expected status code in (200-299), got 406" 

{ status code: 406,headers {

"Content-Language" = en;
"Content-Length" = 1110;
"Content-Type" = "text/html;charset=utf-8";
Date = "Sat, 27 Sep 2014 05:29:13 GMT";
Server = "Apache-Coyote/1.1";
} }

相信很多小伙伴会遇到这种问题,又找不到方法解决.然后今天的项目再次出现了这个问题,因为之前遇到过类似问题,是通过搜索"text/"找到下面这段代码:

+ (NSSet *)acceptableContentTypes

{
　　return [NSSet setWithObjects:@"text/html", @"text/plain", @"application/json", @"text/json", @"text/javascript", nil];
}

在中间插入@"text/html",基本上问题就解决了,但是这次却没有.我来来回回看了好多变代码,也测试了好几次,最后发现了问题,原来是我在封装请求方法时没有加入请求头协议:

[httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]];
[httpClient setDefaultHeader:@"Accept" value:@"application/json"];

加上上面俩句后问题马上得到解决.

最后总结一下:一般遇到这种情况,先查看

+ (NSSet *)acceptableContentTypes

{
　　return [NSSet setWithObjects:@"text/html", @"text/plain", @"application/json", @"text/json", @"text/javascript", nil];
}

这个方法中有没有包含服务器返回的数据格式,如果没有就加上.然后执行代码测试是否通过,如果未通过,再看一下你封装的请求方法中是否没有加入请求头协议.下面是我的完整的封装GET和POST请求方法代码,给大家参考一下:

+ (void)postWithBaseURL:(NSString *)baseURL path:(NSString *)path params:(NSDictionary *)params success:(HttpSuccessBlock)success failure:(HttpFailureBlock)failure
{
// 封装请求
AFHTTPClient *client = [AFHTTPClient clientWithBaseURL:[NSURL URLWithString:baseURL]];
[client registerHTTPOperationClass:[AFJSONRequestOperation class]];
[client setDefaultHeader:@"Accept" value:@"application/json"];
NSURLRequest *post = [client requestWithMethod:@"POST" path:path parameters:params];

// 创建AFJSONRequestOperation对象
NSOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:post success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
success(JSON);
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
failure(error);
}];

// 发送请求
[operation start];
}

+(void)getWithBaseURL:(NSString *)baseURL path:(NSString *)path params:(NSDictionary *)params success:(HttpSuccessBlock)success failure:(HttpFailureBlock)failure
{
// 封装请求
AFHTTPClient *client = [AFHTTPClient clientWithBaseURL:[NSURL URLWithString:baseURL]];
[client registerHTTPOperationClass:[AFJSONRequestOperation class]];
[client setDefaultHeader:@"Accept" value:@"application/json"];
NSURLRequest *post = [client requestWithMethod:@"GET" path:path parameters:params];

// 创建AFJSONRequestOperation对象
NSOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:post success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
success(JSON);
} failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
failure(error);
}];

// 发送请求
[operation start];
}

博客写的较仓促,所以代码没有封装的很细,这里仅供大家参考.