[C++知识库]非常好用的C++JSON库

GitHub地址：

GitHub - j05070415/RJson: C++ JSON library base on rapidjsonC++ JSON library base on rapidjson. Contribute to j05070415/RJson development by creating an account on GitHub.https://github.com/j05070415/RJson.git

示例代码

JSON创建

RValue o1(alloc);
o1["phone"] = 123455;
o1["name"] = "jone";
o1["addr"] = "xxx@asdfasf";
o1["object"]["name"] = "smith";
o1["object"]["age"] = "13";
o1["array"].append("david");
o1["array"].append(99.1234567);
o1["array"].append(true);
o1["array"].append(-123);

JSON序列化和反序列化

std::string str = "{\"count\":2,\"names\":[\"zhangsan\",wangwu\"]}";
auto doc1 = RDocument::fromJson(str.c_str(), str.size());
auto text = doc1.toJson();

Array类型增删改查

std::string str = "{\"count\":2,\"names\":[{\"name\":\"zhangsan\"},{\"name\":\"wangwu\"}]}";
auto doc = RDocument::fromJson(str.c_str(), str.size());
auto names = doc["names"];
printf("size:%d\n", names.size());
for (unsigned int i=0; i<names.size(); ++i) {
    auto name = names[i];
    qDebug() << name["name"].toString().c_str();
}

Object类型增删改查

RValue o1(alloc);
o1["phone"] = 123455;
o1["name"] = "jone";
o1["name"] = "jone1";
o1.remove("name");

空对象创建及修改

RValue value(alloc);
value["age"].setObject();
value["times"].setObject();
value["names"].setArray();
value["urls"].setArray();
value["books"].setArray();

基本数值类型

int i1 = 0x7FFFFFFF;//2147483647
unsigned int i2 = 0xFFFFFFFF;//4294967295
long long i3 = 0x7FFFFFFFFFFFFFFF;//9223372036854775807
unsigned long long i4 = 0xFFFFFFFFFFFFFFFF;//18446744073709551615
auto txt1 = QString::fromLocal8Bit("hello workd!你好，世界");
std::string s1(txt1.toUtf8().data());

RValue v0, v1(true), v2(110.123), v3(-100), v4(i1),
      v5(i2), v6(i3), v7(i4), v8(s1), v9(s1.c_str()), v10(s1.c_str(), s1.size());