CPPRestSDK (casablanca) 从传入的 WebSocket 消息中提取 JSON（格式错误的令牌）
CPPRestSDK (casablanca) Extract JSON From Incoming WebSocket Messages (malformed token)
我正在连接到一个始终在 JSON 中回复的 WebSocket。
我看到 websocket_incoming_message 有一个 extract_string 方法，但是在用 json:value 尝试了很多事情之后，似乎你只能通过插入键即时构建 JSON 数组-值一对一。
我在这里遗漏了什么或者有没有办法从 websocket_incoming_message 获取输出并将其直接转换为 json:value 数组？
wsClient.set_message_handler([=](websocket_incoming_message msg)
{
// handle message from server...
printf("[WebSocket INBOUND]: %s", msg.extract_string().get().c_str());
printJSON(json::value::parse(conversions::to_string_t(msg.extract_string().get())));
});
printJSON 运行s 到 json::value 并打印每个键值对。
Unhandled exception at 0x00007FF866923FB8 in RestAPI.exe: Microsoft
C++ exception: web::json::json_exception at memory location
0x0000003E553FDDC0. occurred
控制台输出：
[WebSocket INBOUND]:
{"t":null,"s":null,"op":10,"d":{"heartbeat_interval":41250,"_trace":["gateway-prd-main-cr3x"]}}
即使我们可以编译并 运行 应用程序，我认为异常是由于传递的字符串包含 JSON Table 而不是单一元素？这是否意味着我需要手动解析字符串并提取每个键值对，同时构建 json 数组？
一定有办法做到这一点，这似乎是基本需要的功能..
A similar unresolved question
如有任何帮助，我们将不胜感激！
谢谢你的时间。
尝试捕获 web::json::json_exception 并打印消息，它可能会提示您出了什么问题
我得到了完整的解决方案。请尝试使用 nuget 的 boost 包。该文档将帮助您从字符串中解析 json 数据。我认为 jsoncpp 不是 nuget.so 中可用的更新包，请尝试 nuget 中可用的 boost 包。
MYJSON 字符串
{"action":"refresh_dashboard","data":{"users_list":[{"user_id":"901e6076ff351cfc2195fb86f8438a26","extensions":[ "1002"],"name":"Karthik M"},{"user_id":"7d617ef5b2390d081d901b0d5cd108eb","extensions":["1015"],"name":"Synway User2"},{"user_id":"c8f667f7d663e81f6e7fa34b9296f067","extensions":["1012"],"name":"Rahib Video"},{"user_id":"cc3f94ecc14ee9c55670dcde9adc1887","extensions":["1006"],"name":"Rounak S Kiran"},{"user_id":"6c29ebdb34e1761fdf9423c573087979","extensions":["1003 "],"name":"Amar Nath"},{"user_id":"8e15c2d95d4325cb07f0750846966be8","extensions":["1011"],"name":"TLS User" },{"user_id":"2fc4142bdacf83c1957bda0ad9d50e3d","extensions":["1014"],"name":"Synway User1"},{"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":"391391de005a8f5403c7b5591f462ea1","extensions":["1013"],"name":"Sangeeth J"},{"user_id":"3258f7ae4ae1db60435cbcf583f64a89","extensions":["1009"],"name":"Aby TL"},{"user_id":"90bc84e5e8a3427fe35e99bd4386de95","extensions":["1010"],"name" :"Prince T"},{"user_id":"b501ef5b270a196afc0eed557ca74237","extensions":["1005"],"name":"Jineed AJ"},{"user_id":"1422af351e06adeab2de92f5a633a444","extensions":["1004"],"name":"Ashok PA"}],"busy_users":[],"reg_users":[{"user_id":"901e6076ff351cfc2195fb86f8438a26","status":"registered"},{"user_id":"6c29ebdb34e1761fdf9423c573087979","status":"registered"}],"contacts":[{"owner_id":"901e6076ff351cfc2195fb86f8438a26","status":"ready"},{"owner_id":"6c29ebdb34e1761fdf9423c573087979","status":"ready"}]}}
代码
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("users_list")) {
std::cout << "\n" << "users list " << e.second.get<std::string>("user_id") << "\n";
}
});
有用的资源
Parse JSON array as std::string with Boost ptree
C++ boost parse dynamically generated json string (not a file)
我正在连接到一个始终在 JSON 中回复的 WebSocket。
我看到 websocket_incoming_message 有一个 extract_string 方法，但是在用 json:value 尝试了很多事情之后，似乎你只能通过插入键即时构建 JSON 数组-值一对一。
我在这里遗漏了什么或者有没有办法从 websocket_incoming_message 获取输出并将其直接转换为 json:value 数组？
wsClient.set_message_handler([=](websocket_incoming_message msg)
{
// handle message from server...
printf("[WebSocket INBOUND]: %s", msg.extract_string().get().c_str());
printJSON(json::value::parse(conversions::to_string_t(msg.extract_string().get())));
});
printJSON 运行s 到 json::value 并打印每个键值对。
Unhandled exception at 0x00007FF866923FB8 in RestAPI.exe: Microsoft C++ exception: web::json::json_exception at memory location 0x0000003E553FDDC0. occurred
控制台输出：
[WebSocket INBOUND]: {"t":null,"s":null,"op":10,"d":{"heartbeat_interval":41250,"_trace":["gateway-prd-main-cr3x"]}}
即使我们可以编译并 运行 应用程序，我认为异常是由于传递的字符串包含 JSON Table 而不是单一元素？这是否意味着我需要手动解析字符串并提取每个键值对，同时构建 json 数组？
一定有办法做到这一点，这似乎是基本需要的功能..
A similar unresolved question
如有任何帮助，我们将不胜感激！ 谢谢你的时间。
尝试捕获 web::json::json_exception 并打印消息，它可能会提示您出了什么问题
我得到了完整的解决方案。请尝试使用 nuget 的 boost 包。该文档将帮助您从字符串中解析 json 数据。我认为 jsoncpp 不是 nuget.so 中可用的更新包，请尝试 nuget 中可用的 boost 包。
MYJSON 字符串
{"action":"refresh_dashboard","data":{"users_list":[{"user_id":"901e6076ff351cfc2195fb86f8438a26","extensions":[ "1002"],"name":"Karthik M"},{"user_id":"7d617ef5b2390d081d901b0d5cd108eb","extensions":["1015"],"name":"Synway User2"},{"user_id":"c8f667f7d663e81f6e7fa34b9296f067","extensions":["1012"],"name":"Rahib Video"},{"user_id":"cc3f94ecc14ee9c55670dcde9adc1887","extensions":["1006"],"name":"Rounak S Kiran"},{"user_id":"6c29ebdb34e1761fdf9423c573087979","extensions":["1003 "],"name":"Amar Nath"},{"user_id":"8e15c2d95d4325cb07f0750846966be8","extensions":["1011"],"name":"TLS User" },{"user_id":"2fc4142bdacf83c1957bda0ad9d50e3d","extensions":["1014"],"name":"Synway User1"},{"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":"391391de005a8f5403c7b5591f462ea1","extensions":["1013"],"name":"Sangeeth J"},{"user_id":"3258f7ae4ae1db60435cbcf583f64a89","extensions":["1009"],"name":"Aby TL"},{"user_id":"90bc84e5e8a3427fe35e99bd4386de95","extensions":["1010"],"name" :"Prince T"},{"user_id":"b501ef5b270a196afc0eed557ca74237","extensions":["1005"],"name":"Jineed AJ"},{"user_id":"1422af351e06adeab2de92f5a633a444","extensions":["1004"],"name":"Ashok PA"}],"busy_users":[],"reg_users":[{"user_id":"901e6076ff351cfc2195fb86f8438a26","status":"registered"},{"user_id":"6c29ebdb34e1761fdf9423c573087979","status":"registered"}],"contacts":[{"owner_id":"901e6076ff351cfc2195fb86f8438a26","status":"ready"},{"owner_id":"6c29ebdb34e1761fdf9423c573087979","status":"ready"}]}}
代码
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("users_list")) {
std::cout << "\n" << "users list " << e.second.get<std::string>("user_id") << "\n";
}
});
有用的资源
Parse JSON array as std::string with Boost ptree
C++ boost parse dynamically generated json string (not a file)