我正在连接一个总是以JSON回复的WebSocket。我看到websocket_incoming_message有一个extract_string方法但是在用json：value尝试了很多东西后，似乎你只能通过逐个插入键值对来实时构建JSON数组。我在这里遗漏了什么或有没有办法从websocket_incoming_message获取输出并直接将其转换为json：value数组？
websocket_client client;
//start socket connection to server
try {
std::cout << "s
----------
client.connect(U("wss://XZXXXZZy.com/ws?account_id=4de3f308f2f8d3247As70228f94e0d2aAea&ws_key=reception")).wait();
}
catch (const std::exception&e)
{
std::cout << e.what() << std::endl;
}
//send messages to the server
//websocket_outgoing_message msg;
//msg.set_pong_message();
//std::cout << "\n...........2nd.........;";
//std::string data = "hii";
//client.send(msg).then([]() {
//
//
//
//
// /* Successfully sent the message. */ });
//std::cout << " Successfully sent the message.";
//std::cout << "\n...........3rd.........;";
//receive messages from the server
client.receive().then([](websocket_incoming_message msg) {
std::cout << "receiving data from socket";
return msg.extract_string();
}).then([](std::string body) {
//FETCHING THE DATA FROM BODY. "TEXT/JSON"
std::cout << "displaying the data";
std::cout << body << std::endl;
const json::value& v1 = body.substr;
utility::string_t jsonval = v1.serialize();
auto array = v1.at(U("rows")).as_array();
for (int i = 0; i<array.size(); ++i)
{
auto id = array[i].at(U("id")).as_string();
std::wcout << "\n" << id;
auto key = array[i].at(U("key")).as_string();
std::wcout << "\n" << key;
auto array2 = array[i].at(U("value")).as_array();
std::wcout << array2[0];
std::wcout << array2[1];
}
}
);
//close the connection
client.close().then([]() {
std::cout << "successfully close socket connction";
/* Successfully closed the connection. */
});
I have json response in my string body.but i dont know how to parse json data from websocket responses event. i want to display contacts from api responses.please help me..
MY JSON RESPONSES
--------------------------------------
.{"action":"refresh_dashboard","data":{"users_list":[{"user_id":"901e6076ff351cfc2195fb86f8438a26","extensions":["1002"],"name":"Karthik M"},{"user_id":"cc3f94ecc14ee9c55670dcde9adc1887","extensions":["1006"],"name":"Rounak S Kiran"},{"user_id":"6c29ebdb34e1761fdf9423c573087979","extensions":["1003"],"name":"Amar Nath"},{"user_id":"74d5b5a9aca1faa4c2f217ce87b621d8","extensions":["1008"],"name":"Robin Raju"},{"user_id":"a7ad7e73bf93ea83c8efdc1723cba198","extensions":["1007"],"name":"Arshad Arif"},{"user_id":"b55146df593ec8d09e5fe12a8a4c1108","extensions":["1001"],"name":"Rahib Rasheed"},{"user_id":"3258f7ae4ae1db60435cbcf583f64a89","extensions":["1009"],"name":"Test User"},{"user_id":"90bc84e5e8a3427fe35e99bd4386de95","extensions":["1010"],"name":"Prince T"},{"user_id":"b501ef5b270a196afc0eed557ca74237","extensions":["1005","+17325951060"],"name":"Jineed AJ"},{"user_id":"1422af351e06adeab2de92f5a633a444","extensions":["1004"],"name":"Ashok PA"}],"busy_users":[],"reg_users":[{"user_id":"cc3f94ecc14ee9c55670dcde9adc1887","status":"registered"},{"user_id":"901e6076ff351cfc2195fb86f8438a26","status":"registered"},{"user_id":"1422af351e06adeab2de92f5a633a444","status":"registered"},{"user_id":"3258f7ae4ae1db60435cbcf583f64a89","status":"registered"},{"user_id":"b55146df593ec8d09e5fe12a8a4c1108","status":"registered"},{"user_id":"6c29ebdb34e1761fdf9423c573087979","status":"registered"}],"contacts":[{"owner_id":"cc3f94ecc14ee9c55670dcde9adc1887","status":"ready"},{"owner_id":"901e6076ff351cfc2195fb86f8438a26","status":"ready"},{"owner_id":"1422af351e06adeab2de92f5a633a444","status":"ready"},{"owner_id":"3258f7ae4ae1db60435cbcf583f64a89","status":"ready"},{"owner_id":"b55146df593ec8d09e5fe12a8a4c1108","status":"ready"},{"owner_id":"6c29ebdb34e1761fdf9423c573087979","status":"ready"}]}}
答案 0 :(得分：3)
我得到了完整的解决方案。请尝试使用nuget的boost pacakges。该文档将帮助您解析字符串中的json数据。我认为jsoncpp不是nuget中提供的更新包。所以请尝试在nuget中提供的提升包。
{＆＃34;动作＆＃34;：＆＃34; refresh_dashboard＆＃34;＆＃34;数据＆＃34; {＆＃34; users_list＆＃34;：[{＆＃34; USER_ID＆＃34 ;：＆＃34; 901e6076ff351cfc2195fb86f8438a26＆＃34;，＆＃34;扩展＆＃34;：[＆＃34; 1002＆＃34;]，＆＃34;名称＆＃34;：＆＃34; Karthik M＆＃34;} ，{＆＃34; USER_ID＆＃34;：＆＃34; 7d617ef5b2390d081d901b0d5cd108eb＆＃34;＆＃34;扩展＆＃34;：[＆＃34; 1015＆＃34]，＆＃34;名称＆＃34;：＆ ＃34; Synway User2＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; c8f667f7d663e81f6e7fa34b9296f067＆＃34;，＆＃34; extensions＆＃34;：[＆＃34; 1012＆＃34;]，＆ ＃34;名称＆＃34;：＆＃34; Rahib视频＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; cc3f94ecc14ee9c55670dcde9adc1887＆＃34;，＆＃34;扩展＆＃34;：[＆＃ 34; 1006＆＃34;]，＆＃34;名称＆＃34;：＆＃34; Rounak S Kiran＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; 6c29ebdb34e1761fdf9423c573087979＆＃34;，＆＃ 34;扩展＆＃34;：[＆＃34; 1003＆＃34;]，＆＃34;名称＆＃34;：＆＃34; Amar Nath＆＃34;}，{＆＃34; user_id＆＃34;：＆＃ 34; 8e15c2d95d4325cb07f0750846966be8＆＃34;，＆＃34;扩展＆＃34;：[＆＃34; 1011＆＃34;]，＆＃34;名称＆＃34;：＆＃34; TLS用户＆＃34;}，{＆＃ 34; USER_ID＆＃34;：＆＃34; 2fc4142bdacf83c1957bda0ad9d50e3d＆＃34;＆＃34;扩展＆＃34;：[＆＃34 ; 1014＆＃34;]，＆＃34;名称＆＃34;：＆＃34; Synway User1＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; 74d5b5a9aca1faa4c2f217ce87b621d8＆＃34;，＆＃34;扩展＆＃34;：[＆＃34; 1008＆＃34;]，＆＃34;名称＆＃34;：＆＃34; Robin Raju＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; a7ad7e73bf93ea83c8efdc1723cba198＆＃34;，＆＃34;扩展＆＃34;：[＆＃34; 1007＆＃34;]，＆＃34;名称＆＃34;：＆＃34; Arshad Arif＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; b55146df593ec8d09e5fe12a8a4c1108＆＃34;，＆＃34; extensions＆＃34;：[＆＃34; 1001＆＃34;]，＆＃34; name＆＃34;：＆＃34; Rahib Rasheed＆＃ 34;}，{＆＃34; USER_ID＆＃34;：＆＃34; 391391de005a8f5403c7b5591f462ea1＆＃34;＆＃34;扩展＆＃34;：[＆＃34; 1013＆＃34]，＆＃34;名称＆＃34 ;：＆＃34; Sangeeth J＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; 3258f7ae4ae1db60435cbcf583f64a89＆＃34;，＆＃34;扩展＆＃34;：[＆＃34; 1009＆＃34; ]，＆＃34;姓名＆＃34;：＆＃34; Aby TL＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; 90bc84e5e8a3427fe35e99bd4386de95＆＃34;，＆＃34;扩展＆＃34;： [＆＃34; 1010＆＃34;]，＆＃34;姓名＆＃34;：＆＃34; Prince T＆＃34;}，{＆＃34; user_id＆＃34;：＆＃34; b501ef5b270a196afc0eed557ca74237＆＃34;， ＆＃34;扩展＆＃34;：[＆＃34; 1005＆＃34;]，＆＃34;名称＆＃34;：＆＃34; Jineed A J＆＃34;}，{＆＃34; USER_ID＆＃34;：＆＃34; 1422af351e06adeab2de92f5a633a444＆＃34;＆＃34;扩展＆＃34;：[＆＃34; 1004＆＃34]，＆＃34;名称＆ ＃34;：＆＃34; Ashok PA＆＃34;}]，＆＃34; busy_users＆＃34;：[]，＆＃34; reg_users＆＃34;：[{＆＃34; user_id＆＃34;：＆＃ 34; 901e6076ff351cfc2195fb86f8438a26＆＃34;＆＃34;状态＆＃34;：＆＃34;注册＆＃34;}，{＆＃34; USER_ID＆＃34;：＆＃34; 6c29ebdb34e1761fdf9423c573087979＆＃34;＆＃34;状态＆ ＃34;：＆＃34;注册＆＃34;}]，＆＃34;触点＆＃34;：[{＆＃34; owner_id＆＃34;：＆＃34; 901e6076ff351cfc2195fb86f8438a26＆＃34;＆＃34;状态＆＃ 34;：＆＃34;准备＆＃34;}，{＆＃34; owner_id＆＃34;：＆＃34; 6c29ebdb34e1761fdf9423c573087979＆＃34;＆＃34;状态＆＃34;：＆＃34;准备＆＃34;} ]}}
client.receive().then([](websocket_incoming_message msg) {
std::cout << "receiving data from socket";
// msg.message_type();
return msg.extract_string();
//1..i have one string
//cout<<"\n///////////test"<< msg.extract_string().get().c_str();
// // 2.convert to json array
//json::value::parse( ::to_string_t(msg.extract_string().get()))
//
}).then([](std::string body) {
//std::cout << "displaying the data";
std::cout << body << std::endl;
std::string ss = body;
ptree pt;
std::istringstream is(ss);
read_json(is, pt);
std::cout <<"\n 1st"<< "action: " << pt.get<std::string>("action") << "\n";
std::cout <<"\n 2nd"<< "data: " << pt.get<std::string>("data") << "\n";
std::cout << "--------------------------------------------------------------";
for (auto& e : pt.get_child("data.users_list")) {
std::cout << "\n" << "users id " << e.second.get<std::string>("user_id") << "\n";
}
});