首先在工程中添加json类库
接着编写配置文件比如我的：StudentCfg.plist
里面的内容为：
[
{"id":1000001,"age":33,"address":"广西桂林红星县","phone":"13132719203"},
{"id":1000001,"age":34,"phone":"13132719204"},"age":35,"phone":"13132719205"}
]
然后创建Student类，Student.h内容如下：
#ifndef __Cocos2dxApp__Student__
#define __Cocos2dxApp__Student__
#include <stdio.h>
#include "cocos2d.h"
class Student :publiccocos2d::Node
{
public:
CREATE_FUNC(Student);
CC_SYNTHESIZE(int,m_nID,ID);
CC_SYNTHESIZE(int,m_nAge,Age);
CC_SYNTHESIZE(std::string,m_strAddress,Address);
CC_SYNTHESIZE(std::string,m_strPhone,Phone);
};
#endif /* defined(__Cocos2dxApp__Student__) */
Student.cpp的内容如下：
#include "Student.h"
，呵呵，这实现文件没没什么内容，主要是因为Student.h中的函数声明没有，这个学过c++的基本都懂接下来，在HelloWorld.h中添加m_vcStudents，用以保存Student对象，添加loadStudentCfg函数，用来加载并解释json配置文件到
m_vcStudents中
class HelloWorld : public cocos2d::LayerColor
{
public:
// there's no 'id' in cpp,so we recommend returning the class instance pointer
static cocos2d::Scene* createScene();
// Here's a difference. Method 'init' in cocos2d-x returns bool,instead of returning 'id' in cocos2d-iphone
virtual bool init();
// a selector callback
void menuCloseCallback(cocos2d::Ref* pSender);
bool loadStudentCfg(conststd::string& path);
// implement the "static create()" method manually
CREATE_FUNC(HelloWorld);
private:
cocos2d::Vector<Student*> m_vcStudents;
};
loadStudentCfg函数的代码如下：
bool HelloWorld::loadStudentCfg(const std::string& path)
{
auto strData = FileUtils::getInstance()->getStringFromFile(path.c_str());
Json::Reader reader;
Json::Value root;
if (!reader.parse(strData,root)) {
return false;
}
// int size = root.size();
// for (int i = 0; i < size; ++i) {
// auto student = Student::create();
// int id = root[i]["id"].asInt();
// int age = root[i]["age"].asInt();
// std::string address = root[i]["address"].asString();
// std::string phone = root[i]["phone"].asString();
//
// student->setID(id);
// student->setAge(age);
// student->setAddress(address);
// student->setPhone(phone);
// m_vcStudents.pushBack(student);
// }
for (auto r : root) {
auto student = Student::create();
int id = r["id"].asInt();
int age = r["age"].asInt();
std::string address = r["address"].asString();
std::string phone = r["phone"].asString();
student->setID(id);
student->setAge(age);
student->setAddress(address);
student->setPhone(phone);
m_vcStudents.pushBack(student);
}
returntrue;
}
代码中注释的部分是常规写法，现在我用c++11的新特性，for(:)语句
接着在HelloWorld.cpp实现文件的init函数调用
，loadStudentCfg,并将配置文件中的数据打印出来
如下：
bool HelloWorld::init()
{
// 1. super init first
if ( !LayerColor::init())
{
return false;
}
if (!loadStudentCfg("StudentCfg.plist")) {
return false;
}
auto visibleSize =Director::getInstance()->getVisibleSize();
for (auto s : m_vcStudents)
{
int id = s->getID();
int age = s->getAge();
std::string address = s->getAddress();
std::string phone = s->getPhone();
auto msg =String::createWithFormat("id = %d,age= %d,address= %s,phe = %s",id,age,address.c_str(),phone.c_str());
auto lbel =Label::create(msg->getCString(),"Arial",24);
auto size = lbel->getContentSize();
lbel->setPosition(Vec2(visibleSize.width /2,visibleSize.height - size.height /2 - height));
height += size.height;
this->addChild(lbel);
}
return true;
}
最后打印结果如下：
这只是针对新手，呵呵，我也是新手，仅当学习笔记，希望能帮到大家的忙。
#include "json/document.h"
std::string sData =FileUtils::getInstance()->getStringFromFile("config.plist");
rapidjson::Document reader;
reader.Parse<0>(sData.c_str());
int size = root.size();
for (int i =0; i < size; ++i) {
auto student = Student::create();
int id = reader[i]["id"].asInt();
int age = reader[i]["age"].asInt();
std::string address = root[i]["address"].asString();
std::string phone = root[i]["phone"].asString();
student->setID(id);
student->setAge(age);
student->setAddress(address);
student->setPhone(phone);
m_vcStudents.pushBack(student);
}
}
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