//数组 转json 这个数组里包含字典
- (NSString *)objArrayToJSON:(NSArray *)array {
NSMutableArray *Marray = [NSMutableArray array];
NSString *jsonStr1;
for (NSInteger i = 0; i < array.count; i++) {
// 这里是先把数组每个元素 也就是字典 取出来 先转json
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:array[i] options:NSJSONWritingPrettyPrinted error:nil];
jsonStr1 = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
[Marray addObject:jsonStr1];
}
NSString *jsonStr = @"[";
for (NSInteger i = 0; i < Marray.count; ++i) {
//再把 数组 转成json
if (i != 0) {
jsonStr = [jsonStr stringByAppendingString:@","];
}
jsonStr = [jsonStr stringByAppendingString:Marray[i]];
}
jsonStr = [jsonStr stringByAppendingString:@"]"];
return jsonStr;
}