这里是JSON形式：困难rapidjson 0.11 GetInt（），总是返回0

{"simpleChannels":{"item":[{"channelID":4248,"majorChannelNumber":22,"minorChannelNumber":0,"channelType":"SLL","simpleSchedules":[],"channelKey":"4248_400000","shortName":"KWHY","longName":"A3 Los Angeles 22 KWHY IND","networkAffiliation":["Independent"],"logoID":0,"authCode":"FS","engChlFlag":false,"hasMirror":true,"pgSource":"ACTIVE","hdChlFlag":true,"adultChlFlag":false,"vodProviderId":0,"blackOut":false,"liveStreaming":"N"}]}}

下面是尝试解析和提取的值的代码：
JSON是含有的std :: string以上：

m_guideSlice.Parse<0>(json.c_str()); 
    rapidjson::Value& simpleChannels = m_guideSlice["simpleChannels"]; 
    if (simpleChannels.IsObject()) { 
     SYSLOG_CRITICAL("simpleChannels.IsObject() == true\n"); 
     rapidjson::Value& channelArray= simpleChannels["item"]; 
     if (channelArray.IsArray()) { 
      SYSLOG_CRITICAL("channelArray.IsArray() == true\n"); 
      rapidjson::Value& channel = channelArray[0u]; 
      if (channel.IsObject()) { 
       SYSLOG_CRITICAL("channel.isObject() == true\n"); 
       rapidjson::Value& channelID = channel["channelID"]; 
       if (channelID.IsInt()) { 
        SYSLOG_CRITICAL("channelID.IsInt() == true, channelID= %d\n", channelID.GetInt()); 
       } 
       else { 
        SYSLOG_CRITICAL("channelID.IsInt() == false, type= %X\n", channelID.GetType());      
       } 
       rapidjson::Value& majorChannelNumber = channel["majorChannelNumber"]; 
       if (majorChannelNumber.IsInt()) { 
        SYSLOG_CRITICAL("majorChannelNumber.IsInt() == true, majorChannelNumber= %d\n", majorChannelNumber.GetInt()); 
       } 
       else { 
        SYSLOG_CRITICAL("majorChannelNumber.IsInt() == false, type= %X\n", majorChannelNumber.GetType());      
       } 
       rapidjson::Value& channelType = channel["channelType"]; 
       if (channelType.IsString()) { 
        SYSLOG_CRITICAL("channelType.IsString() == true\n") 
        SYSLOG_CRITICAL("channelType = %s\n", channelType.GetString()); 
       } 
       else { 
        SYSLOG_CRITICAL("channelType.IsString() == false, type= %X\n", channelType.GetType()); 
       } 
       rapidjson::Value& shortName = channel["shortName"]; 
       if (channelType.IsString()) { 
        SYSLOG_CRITICAL("shortName.IsString() == true\n") 
        SYSLOG_CRITICAL("shortName = %s\n", shortName.GetString()); 
       } 
       else { 
        SYSLOG_CRITICAL("shortName.IsString() == false, type= %X\n", shortName.GetType()); 
       } 
      } 
      else { 
       SYSLOG_CRITICAL("channel.IsObject() == false, type= %X\n", channel.GetType()); 
      } 
     } 
     else { 
      SYSLOG_CRITICAL("channelArray.IsArray() == false, type= %X\n", channelArray.GetType());    
     } 
    } 
    else { 
     SYSLOG_CRITICAL("simpleChannels.IsObject() == false, type= %X\n", simpleChannels.GetType()); 
    }

下面是从系统日志中提取输出：

May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:78) getGuide(): simpleChannels.IsObject() == true 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:81) getGuide(): channelArray.IsArray() == true 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:84) getGuide(): channel.isObject() == true 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:87) getGuide(): channelID.IsInt() == true, channelID= 0 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:94) getGuide(): majorChannelNumber.IsInt() == true, majorChannelNumber= 0 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:101) getGuide(): channelType.IsString() == true 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:102) getGuide(): channelType = SLL 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:109) getGuide(): shortName.IsString() == true 
May 19 01:25:38 [BSP] [30578]: [PGWS-GEN LOG_CRIT tid:30744 pthr:0x7033e4f0]: (PgwsIngest.cpp:110) getGuide(): shortName = KWHY

char json值被正确提取，但是int值始终为0.我是第一次rapidjson用户，所以我确定存在一个简单的错误，但我没有看到它。

感谢所有，

顺便说一句，json的形式传递http://www.freeformatter.com/json-validator.html所以我认为这是正确的。无论如何它都是机器生成的。

来源

2013-05-19 kelvin

我在一个大的endian机器上，编译器不能传递适当的标志来指示endianness。
明确设置标志：

定义RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN

在rapidsjon.h应该解决这个问题。

来源

2013-05-20 06:13:35 kelvin

我是rapidjson的作者。我可否在你的环境中知道检测字节序的更好方法？ –

我们改进了此pull request中的端序检测。

它会检测到更多平台定义的宏。如果检测不成功，则会生成预处理器错误，然后您必须定义RAPIDJSON_ENDIAN。

您可以将此差异合并到您的版本，以了解它是否有帮助。

来源

2014-08-13 15:28:00

困难rapidjson 0.11 GetInt（），总是返回0

回答

定义RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN

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