Question

我在控制台中有以下json值：

{"TokenID":"kuiHigen21","isError":false,"ErrorMessage":"","Result":[{"UserId":"153","FirstName":"Rocky","LastName":"Yadav","Email":"rocky@itg.com","ProfileImage":null,"ThumbnailImage":null,"DeviceInfoId":"12"}],"ErrorCode":900}

这是我的服务器api：@“http://192.168.0.68:91/JourneyMapperAPI?RequestType=Login” // api需要5个参数。当我将数据发布到服务器api时，值被发布到服务器，我得到了json格式的上述响应。

我想解析上面在响应中得到的JSON值并保存在sqlite数据库中。

我正在使用此代码来解析上面的JSON值：

 -(void)connectionDidFinishLoadingNSURLConnection *)connection 
{ 
  NSString *loginStatus = [[NSString alloc] initWithBytes: [webData mutableBytes] lengthwebData length] encoding:NSUTF8StringEncoding];     
     NSLog(@"%@",loginStatus); 

self.webData = nil; 

      SBJSON *parser =[[SBJSON alloc]init]; 

     NSURLRequest *request = [NSURLRequest requestWithURLNSURL URLWithString"http://192.168.0.68:91/JourneyMapperAPI?RequestType=Login.json"]]; 

         NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; 

  // Get JSON as a NSString from NSData response 

NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding]; 

  //NSDictionary *object = [parser objectWithString:json_string error:nil]; 
  // parse the JSON response into an object   
// Here we're using NSArray since we're parsing an array of JSON status objects 

NSArray *statuses = [parser objectWithString:json_string error:nil];    


for (NSDictionary *status in statuses)  
 {     
// You can retrieve individual values using objectForKey on the status NSDictionary  
   // This will print the tweet and username to the console  

NSLog(@"%@ - %@", [status objectForKey"Login"],[status objectForKey"LoginKey"]);  

  [connection release];   [webData release]; 

}

Answer 1

你应该查看一些JSON解析器，我个人最喜欢的是json-framework。在项目中包含其中一个之后，您从服务器获得了JSON响应：

// Get JSON as a NSString from NSData response 

NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding]; 

NSDictionary *result = [json_string JSONValue];
NSArray *statuses = [result objectForKey:@"Result"];

将返回结果数组（数组中的每个对象都是NSDictionary）。

Answer 2

您可以借助模型类Result

将其保存到数据库中

NSString *json_string = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding]; 

NSDictionary *result = [json_string JSONValue];
NSArray *values = [result objectForKey:@"Result"];
NSMutableArray *results = [[NSMutableArray alloc] init];

for (int index = 0; index<[values count]; index++) {
   NSMutableDictionary * value = [values objectAtIndex:index];
   Result * result = [[Result alloc] init];
   result.UserId = [value objectForKey:@"UserId"];
   result. FirstName = [value objectForKey:@"FirstName"];
   ...

   [results addObject:result];
   [result release]; 
}

使用结果数组将其保存到数据库中。

for (int index = 0; index<[results count]; index++) {
   Result * result = [results objectAtIndex:index];

   //save the object variables to database here
}

如何在iphone中的控制台上读取JSON值

2 个答案: