首先你必须在http://sourceforge.net/projects/jsoncpp/files/jsoncpp/下载jsoncpp的源代码(.cpp/.h/.inl)包含到过程中如下图:
@H_301_11@测试源代码:[testjson.cpp]
#include "stdafx.h"
#include<iostream>#include <string>
#include "json.h" //包含头文件
using namespace std;
using namespace Json;
void readJson();
void writeJson();
int main(int argc,char** argv) {
readJson();
cout << "---------------------------------------------" << endl;
writeJson();
return 0;
}
//解析JSON数据
void readJson()
{
std::string strValue = "{\"name\":\"json\",\"array\":[{\"cpp\":\"jsoncpp\"},{\"java\":\"jsoninjava\"},{\"PHP\":\"support\"}]}";
Json::Reader reader;
Json::Value value;
if (reader.parse(strValue,value))
{
std::string out = value["name"].asString();
std::cout << out << std::endl;
const Json::Value arrayObj = value["array"];
for (unsigned int i = 0; i < arrayObj.size(); i++)
{
if (!arrayObj[i].isMember("cpp"))
continue;
out = arrayObj[i]["cpp"].asString();
std::cout << out;
if (i != (arrayObj.size() - 1))
std::cout << std::endl;
}
}
}
//生成JSON格式数据
void writeJson()
{
Json::Value root;
Json::Value arrayObj;
Json::Value item;
item["cpp"] = "jsoncpp";
item["java"] = "jsoninjava";
item["PHP"] = "support";
arrayObj.append(item);
root["name"] = "json";
root["array"] = arrayObj;
root.toStyledString();
std::string out = root.toStyledString();
std::cout << out << std::endl;
}
输出结果: