Question

{
    "Restricted_parameters":
    {
        "abcd"
        "efgh"
        "ijkl"
        "mnop"
   }
}

我是关于json文件和解析它的新手，在我当前的大学项目中，当我正在解析json文件时它会给出错误

任何人都可以让我知道如何解析上面的json文件

我也在使用JSON解析器API

Jason_parser_edf::Jason_parser_edf()
{
    Json_parser file_parser;
    // Create empty property tree object
    using boost::property_tree::ptree;
    ptree pt;
    uint32_t nb = 0;
    std::string //    const std::string restricted_parameters = "Restricted_parameters";
    file_parser.open_json_file(current_file_path, &pt);
    ptree::const_iterator end = pt.end();
    for (ptree::const_iterator it = pt.begin(); it != end; ++it)
    {
        BOOST_FOREACH( ptree::value_type const& v, pt.get_child(it->first) ) // parasoft-suppress MISRA2008-6_4_1 "BOOST library" // parasoft-suppress NAMING-33 "BOOST library" // parasoft-suppress BD-PB-CC "BOOST library" // parasoft-suppress MISRA2008-6_3_1 "BOOST library"
        {
            // Getting additional fields
            std::string additional_field_name = v.second.get<std::string>("Restricted_parameters");
            cout << additional_field_name << endl;
        }
    }
    // second way I am trying
    for (auto & array_element: pt) {
            for (auto & property: array_element.second) {
                std::cout << property.first << endl;
            }
        }
//    db_conf_structure.dump();
}

Answer 1

这不是JSON的有效格式，您必须始终记住具有对键：值

{
"Restricted_parameters":
 {
    "abcd": "val1",
    "efgh": "val2",
    "ijkl": "val3",
    "mnop": "val4"
 }
}

或使用数组

{
"Restricted_parameters":
 [
    "abcd",
    "efgh",
    "ijkl",
    "mnop"
 ]
}

Answer 2

JSON无效。数组通过方括号初始化，您需要在项目之间使用逗号。

{
    "Restricted_parameters":
    [
        "abcd",
        "efgh",
        "ijkl",
        "mnop"
   ]
}

json解析给出了错误

2 个答案: