使用 POST 而不是 GET 将数据传递给目标 c [英] Passing data to objective c with POST rather than GET

问题描述

我一直在使用 url 拦截方法将数据从 javascript 传递到目标 C，方法是将数据作为 url 编码参数传递并使用 NSURLProtocol 拦截请求，但是我现在想要发送大量数据，比如 10,000 个字符长字符串，但这在 GET 请求中似乎并不实际.对吧?

目标 c 有没有办法拦截从 UIWebView 发送的 POST 数据?
如果是这样，我是否仍然使用 NSURLProtocol 以及如何获取 POST 数据?
如果没有，是否有其他方法可以将大量数据从 UIWebView 传递到目标 c?

解决方案

当使用如下代码时:

<上一页>@implementation AppProtocolHandler+ (void)registerSpecialProtocol {静态 BOOL 初始化 = 否；如果(！初始化){初始化=是；[NSURLProtocol registerClass:[AppProtocolHandler 类]];}}- (void)handleRequest {NSURLRequest *request = [自我请求];//通过 app://时为空，但通过 http://时有效NSLog(@"[请求 HTTPBody]: %@", [请求 HTTPBody]);}+ (BOOL)canInitWithRequest:(NSURLRequest *)request {返回是；}+ (NSURLRequest *)canonicalRequestForRequest:(NSURLRequest *)request {退货请求；}@结尾

对某些协议的请求(例如 app://)将导致 [request HTTPBody] 为 null.但是，如果您通过 http:// 发送，则 [request HTTPBody] 将按预期将请求数据包含在 NSData 对象中.

所以你的 Javascript 应该是这样的:

<上一页>$.post("http://test/hello/world", {'data':"foo bar"});

而不是类似:

<上一页>$.post("app://test/hello/world", {'data':"foo bar"});

I have been using the url intercept method to pass data from javascript to objective C by passing the data as url encoded parameters and using NSURLProtocol to intercept the request however I am now wanting to send larger amounts of data like say 10,000 character long strings but this does not seem practical to do in a GET request. Right?

Is there a way for objective c to intercept POST data sent from a UIWebView?
If so do I still use NSURLProtocol and how do I get the POST data?
If not is there some other way I can pass larger amounts of data from the UIWebView to objective c?

解决方案

When using code like:

@implementation AppProtocolHandler

+ (void)registerSpecialProtocol {
    static BOOL inited = NO;

    if (!inited) {
        inited = YES;
        [NSURLProtocol registerClass:[AppProtocolHandler class]];
    }
}

- (void)handleRequest {
    NSURLRequest *request = [self request];

    // null when via app:// but works when via http://
    NSLog(@"[request HTTPBody]: %@", [request HTTPBody]);
}

+ (BOOL)canInitWithRequest:(NSURLRequest *)request {
    return YES;
}

+ (NSURLRequest *)canonicalRequestForRequest:(NSURLRequest *)request {
    return request;
}

@end

Requests to some protocols (e.g. app://) will result in [request HTTPBody] being null. But if you send through http:// then the [request HTTPBody] will have the request data in an NSData object as expected.

So your Javascript should look something like:

$.post("http://test/hello/world", {'data':"foo bar"});

And not something like:

$.post("app://test/hello/world", {'data':"foo bar"});

这篇关于使用 POST 而不是 GET 将数据传递给目标 c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！