rapidjson的使用

{
"FlgStatus": "sample string 1",
"OrderNo": true,
"CustomerContactID": 123.45,
"CouponType": 1233435454,
"ordersBody": [
{
"CustomerContactID": "sample string 1",
"CustomerID": false,
"Provinces": 123.45,
"City": 34545
},
{
"CustomerContactID": "sample string 1",
"CustomerID": false,
"Provinces": 123.45,
"City": 34545
}
],
"customercontact": {
"CustomerContactID": "sample string 1",
"CustomerID": false,
"Provinces": 123.45,
"City": 34545
}
}

#include "rapidjson/document.h"
#include "rapidjson/prettywriter.h"
#include "rapidjson/filestream.h"
#include "rapidjson/stringbuffer.h"

#define psln(x) std::cout << #x " = " << (x) << std::endl

using std::string;
using std::ifstream;

string  stringFromStream;
ifstream  in;
in.open("E://json1.json", ifstream::in);
if (!in.is_open())
return;
string line;
while (getline(in, line)) {
stringFromStream.append(line + "\n");
}
in.close();

//cout << stringFromStream << endl;

Document doc;
doc.Parse<0>(stringFromStream.c_str());
if (doc.HasParseError()) {
//ParseErrorCode code = doc.GetParseError();
psln("error");
return;
}

// use values in parse result.
Value & v = doc["FlgStatus"];
if (v.IsString())
{
psln(v.GetString());
}
v = doc["OrderNo"];
if (v.IsBool())
{
psln(v.GetBool());
}
v = doc["CustomerContactID"];
if (v.IsDouble())
{
psln(v.GetDouble());
}
v = doc["CouponType"];
if (v.IsInt())
{
psln(v.GetInt());
}
//解析array
v = doc["ordersBody"];
if (v.IsArray())
{
int len = v.Size();
for (int i = 0; i < len; i++)
{
Value & value = v[i];
if (value.IsObject())
{
if (value.HasMember("CustomerContactID") && value["CustomerContactID"].IsString())
{
psln(value["CustomerContactID"].GetString());
}
if (value.HasMember("CustomerID") && value["CustomerID"].IsBool())
{
psln(value["CustomerID"].GetBool());
}
if (value.HasMember("Provinces") && value["Provinces"].IsDouble())
{
psln(value["Provinces"].GetDouble());
}
if (value.HasMember("City") && value["City"].IsInt())
{
psln(value["City"].GetInt());
}
}
}
}
//解析object
v = doc["customercontact"];
if (v.IsObject())
{
if (v.HasMember("CustomerContactID") && v["CustomerContactID"].IsString())
{
psln(v["CustomerContactID"].GetString());
}
if (v.HasMember("CustomerID") && v["CustomerID"].IsBool())
{
psln(v["CustomerID"].GetBool());
}
if (v.HasMember("Provinces") && v["Provinces"].IsDouble())
{
psln(v["Provinces"].GetDouble());
}
if (v.HasMember("City") && v["City"].IsInt())
{
psln(v["City"].GetInt());
}
}

Document document;
Document::AllocatorType& allocatorType = document.GetAllocator();
Value root(kObjectType);

//添加string数据
Value FlgStatus="sample string 1";
root.AddMember("FlgStatus", FlgStatus, allocatorType);
//添加bool
Value OrderNo=true;
root.AddMember("OrderNo", OrderNo, allocatorType);
//添加int
Value CustomerContactID=123;
root.AddMember("CustomerContactID", CustomerContactID, allocatorType);
//添加double
Value CouponType = 123.456;
root.AddMember("CouponType", CouponType, allocatorType);
//添加array
Value ordersBody(kArrayType);
for (int i = 0; i < 2; i++)
{
Value v(kObjectType);

Value CustomerContactID = "sample string 1";
v.AddMember("CustomerContactID", CustomerContactID, allocatorType);
Value CustomerID = false;
v.AddMember("CustomerID", CustomerID, allocatorType);
Value Provinces = 123.45;
v.AddMember("Provinces", Provinces, allocatorType);
Value City = 34545;
v.AddMember("City", City, allocatorType);

ordersBody.PushBack(v,allocatorType);
}
root.AddMember("ordersBody", ordersBody, allocatorType);

//添加object数据
Value customercontact(kObjectType);
Value CustomerContactID1 = "sample string 1";
customercontact.AddMember("CustomerContactID", CustomerContactID1, allocatorType);
Value CustomerID = false;
customercontact.AddMember("CustomerID", CustomerID, allocatorType);
Value Provinces = 123.45;
customercontact.AddMember("Provinces", Provinces, allocatorType);
Value City = 34545;
customercontact.AddMember("City", City, allocatorType);
root.AddMember("customercontact", customercontact, allocatorType);

StringBuffer stringBuffer;
Writer<StringBuffer> writer(stringBuffer);
root.Accept(writer);
std::string result = stringBuffer.GetString();
cout << "result: " << result.c_str() << "..........:" << result.size() << endl;

ofstream outfile("E://json2.json");
outfile << result.c_str() << endl;
outfile.close();