ball.json 数据如下：

1. @H_502_11@{
2. "entities":[
3. {
4. "entity":{
5. "TapOpposite":0,
6. "Interval":0.95,
7. "BallNum":1
8. }
9. },248)"> {
10. "entity":{
11. "TapOpposite":0,108); list-style:decimal-leading-zero outside; color:inherit; line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important"> "Interval":0.91,248)"> "BallNum":2
12. }
13. },108); list-style:decimal-leading-zero outside; color:inherit; line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important"> "BallNum":3
14. ]
15. }

在cocos2dx中json的读取是用的rapidjson,包含在cocostudio工程中。所以我们要先引入#include "cocostudio/CocoStudio.h"

void@H_502_11@GameWorld::readJson()
1. //json文档@H_502_11@
2. rapidjson::Document_doc;
3. bool@H_502_11@bRet=false@H_502_11@;
4. ssize_tsize=0;
5. unsignedchar@H_502_11@*pBytes=NULL;
6. do@H_502_11@{
7. pBytes=cocos2d::CCFileUtils::sharedFileUtils()->getFileData("ball.json"@H_502_11@,"r"@H_502_11@,&size);
8. CC_BREAK_IF(pBytes==NULL||strcmp((char@H_502_11@*)pBytes,""@H_502_11@)==0);
9. std::stringload_str((const@H_502_11@ CC_SAFE_DELETE_ARRAY(pBytes);
10. _doc.Parse<0>(load_str.c_str());
11. CC_BREAK_IF(_doc.HasParseError());
12. //生成json文档对像@H_502_11@
14. if@H_502_11@(!_doc.IsObject())
15. return@H_502_11@;
17. //是否有此成员@H_502_11@
18. if@H_502_11@(!_doc.HasMember("entities"@H_502_11@))
19. //通过[]取成员值,再根据需要转为array,int,double,string@H_502_11@
20. const@H_502_11@rapidjson::Value&pArray=_doc["entities"@H_502_11@];
21. //是否是数组@H_502_11@
22. if@H_502_11@(!pArray.IsArray())
23. return@H_502_11@;
24. for@H_502_11@(rapidjson::SizeTypei=0;i<pArray.Size();i++)
25. const@H_502_11@rapidjson::Value&p=pArray[i];
26. if@H_502_11@(p.HasMember("entity"@H_502_11@))
27. const@H_502_11@rapidjson::Value&valueEnt=p["entity"@H_502_11@];
28. if@H_502_11@(valueEnt.HasMember("TapOpposite"@H_502_11@)&&valueEnt.HasMember("Interval"@H_502_11@)&&valueEnt.HasMember("BallNum"@H_502_11@))
29. const@H_502_11@rapidjson::Value&tapOpposite=valueEnt["TapOpposite"@H_502_11@];
30. int@H_502_11@tapOp=tapOpposite.GetInt();//得到int值@H_502_11@
31. const@H_502_11@rapidjson::Value&interval=valueEnt["Interval"@H_502_11@];
32. float@H_502_11@inter=interval.GetDouble();//得到float,double值@H_502_11@
33. const@H_502_11@rapidjson::Value&ballNum=valueEnt["BallNum"@H_502_11@];
34. int@H_502_11@ball=ballNum.GetInt(); ballParamparam;
35. param.tapOp=tapOp;
36. param.inter=inter;
37. param.ballIndex=ball;
38. m_ballParamVec.push_back(param);
39. else@H_502_11@
40. bRet=true@H_502_11@;
41. }while@H_502_11@(0);
42. }