util.cpp

#include "util.h"
#include <iostream>
#include <sstream>

#include <cstdlib>
Json::Value parse_json(const std::string &info) {

    // 解析JSON
    Json::Value root;
    Json::CharReaderBuilder readerBuilder;
    std::string errors;
    std::istringstream jsonStream(info);

    // 解析JSON字符串
    bool parsingSuccessful =
        Json::parseFromStream(readerBuilder, jsonStream, &root, &errors);

    if (!parsingSuccessful) {
        std::cerr << "Failed to parse JSON: " << errors << std::endl;
        return Json::Value();
    }
    return root;
}

std::string rand_string(int len){
    srand(static_cast<unsigned int>(time(nullptr)));
    std::stringstream ss;
    for(int i = 0; i < len; i++){
        int t = rand()%52;
        if(t<26){
            ss<<'a' + t;
        }else{
            ss<<'A' + t;
        }
    }
    return ss.str();
}