使用initWithContentsOfUrl时如何设置内容类型 [英] How to set content-type when using initWithContentsOfUrl

问题描述

基本上我想设置

Content-Type：application / json;

Content-Type: application/json;

以便打电话一个点网络网络服务，让它返回到一个iPhone应用程序。

in order to call a dot net web service and have it return json to an iphone application.

目前我有

NSString * jsonres = [[NSString alloc] initWithContentsOfURL:url];

为了发出阻止请求，我还需要什么？

What do I need instead in order to issue a blocking request ?

推荐答案

你需要使用NSURLMutableRequest，在这里你可以为内容类型和排序添加标题，这里是参考， http://developer.apple.com/iphone/library /documentation/Cocoa/Reference/Foundation/Classes/NSMutableURLRequest_Class/Reference/Reference.html#//apple_ref/occ/cl/NSMutableURLRequest ，一旦设置了请求，就可以使用此方法添加值 - （void ）addValue：（NSString *）值为HTTPHeaderField：（NSString *）字段类似

You need to use NSURLMutableRequest, here you can add headers for content-type and the sort, here is a r eference, http://developer.apple.com/iphone/library/documentation/Cocoa/Reference/Foundation/Classes/NSMutableURLRequest_Class/Reference/Reference.html#//apple_ref/occ/cl/NSMutableURLRequest, once you set up your request you can add the value using this method - (void)addValue:(NSString *)value forHTTPHeaderField:(NSString *)field something like

[request setValue:@"application/json; charset=utf-8" forHTTPHeaderField:@"Content-Type"];

这篇关于使用initWithContentsOfUrl时如何设置内容类型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！