IOS json 解析遇到错误问题解决办法

概要：

error domain=nscocoaerrordomain code=3840 "the operation couldn't be completed. (cocoa error 3840.)" (unescaped control character around character 1419.) userinfo=0x1563cdd0 {nsdebugdescription=unescaped control character around character 1419.}

之前解析json的时候都是标准格式，json数据当中没有 \n \r \t 等制表符。

今天在解析的时候发现json解析时好时坏，用在线json解析也米有问题。找了半天终于发现是制表符在作怪，由于标准的json解析是不允许有这几个制表符的。所以在收到保温的时候我们需要把这几个制表符给过滤掉。

nsstring * responsestring = [request responsestring];

responsestring = [responsestring stringbyreplacingoccurrencesofstring:@"\r\n" withstring:@""];

responsestring = [responsestring stringbyreplacingoccurrencesofstring:@"\n" withstring:@""];

responsestring = [responsestring stringbyreplacingoccurrencesofstring:@"\t" withstring:@""];

nslog(@"responsestring = %@",responsestring);

sbjsonparser *parser = [[[sbjsonparser alloc]init] autorelease];

id returnobject = [parser objectwithstring:responsestring];

nsdictionary *userinfo = nil;

nsarray *userarr = nil;

if ([returnobject iskindofclass:[nsdictionary class]]) {

if (userinfo) {

[userarr release];

}

userinfo = (nsdictionary*)returnobject;

}

else if ([returnobject iskindofclass:[nsarray class]]) {

userarr = (nsarray*)returnobject;

}

nserror* e = nil;

//系统自带的解析方式。

nsdictionary * userinfo = [nsjsonserialization jsonobjectwithdata:[jsonstring datausingencoding:nsutf8stringencoding] options:nsjsonreadingmutableleaves error:&e];

if (e) {

nslog(@"%@",e);

}

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