boost解析json-白红宇

boost解析json

阅读量：6903 次

发布时间：2019-06-27

本文共 1625 字，大约阅读时间需要 5 分钟。

#include 
     
      #include 
      
       #include 
       
        #include 
        
          #include 
         
          #include 
          
            using namespace std;using namespace boost::property_tree; int main(int argc, char *argv[]){ QCoreApplication a(argc, argv); string s = "{/"age/" : 26,/"study/":{/"language/":{/"one/":/"chinese/",/"two/":/"math/"},/"fee/":500,/"subject/":[{/"one/":/"china/"},{/"one/":/"Eglish/"}]},/"person/":[{/"id/":1,/"name/":/"chen/"},{/"id/":2,/"name/":/"zhang/"}],/"name/" : /"huchao/"}"; string s = "{age : 26,study:{ language:{one:chinese,two:math},fee:500,subject:[{one:china},{one:Eglish}]},person:[{id:1,name:chen},{id:2,name:zhang}],name : huchao}"; ptree pt; stringstream stream(s); //这步不知道为什么要这样 read_json
           
            ( stream, pt); pt.put("study.language.one","physics");//修改数据（这步废了好久时间，最后通过读英文资料解决） pt.put("study.fee",600); string s1=pt.get
            
             ("age"); cout<
             
              <
              
               ("name"); cout<
               
                <
                
                 ("one"); cout<
                 
                  <
                  
                   ("fee"); cout<
                   
                    <
                    
                     second; //first为空 cout<<"subject="<
                     
                      
                       ("one")<
                       
                        ("conf.theme") <

("conf.clock_style") <

("conf.gui") <

second.data()<<","; // } // cout<

("age",29);// pt_11.put("name","chen"); // pt_12.push_back(make_pair("",pt_11));// pt_12.push_back(make_pair("",pt_11)); // //replace or create child node "data"// pt_1.put_child("data",pt_12); // ostringstream os;// write_json(os,pt_1);// cout<

里面的有些还是比较模糊，原理不清

vs提示个错误：pnode.get<int>("x")不存在从 "char [2]" 转换到 "boost::property_tree::string_path<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::property_tree::id_translator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > >" 的适当构造函数

查了半天结果可以运行，这VS也有点坑人吧

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