C++ Json解析CJsonObject的详细使用

引用头文件：

#include <string>
#include <iostream>
#include <fstream>
#include <cassert>
#include <stdio.h>
#include <io.h>
#include<sstream>
#include <vector>
#include "cjsonobject.hpp"

    using namespace std;
    using namespace neb;
  	cjsonobject objson;

 

1 __declspec(dllexport)  void  __stdcall read_json(char* path)
2 {
3     ifstream t(path);
4     string str((istreambuf_iterator<char>(t)),istreambuf_iterator<char>());
5     string strvalue;
6     objson= cjsonobject(str);
7     cout << "-------------------------------------------------------------------" << std::endl;}

 1     //保存json文件
 2 __declspec(dllexport)  void  __stdcall  write_string_to_file_append(char*  file_string)
 3 {
 4     /*remove(file_string);*/
 5     std::ofstream    oswrite(file_string, std::ofstream::trunc);
 6     oswrite << objson.tostring();
 7     oswrite << std::endl;
 8     oswrite.close();
 9     std::cout << "------------------执行完毕------------------------" << std::endl;
10 }

1.修改如下图数据结构：

 1 __declspec(dllexport)  void  __stdcall fxmwinddirectbaseline(int num,  int count, char** parr, int* sarr, int* iarr)
 2 {
 3 
 4     string ivalue;
 5     for (int i = 0; i < objson["winddirectline"]["coordinates"][num]["mwinddirectbaseline"].getarraysize(); i++)
 6     {
 7         objson["winddirectline"]["coordinates"][num]["mwinddirectbaseline"].delete(i);
 8         i--;
 9     }
10     cout << "---------------" << endl;
11     cout << objson["winddirectline"]["coordinates"][num]["mwinddirectbaseline"].getarraysize() << endl;
12     cjsonobject je;
13     for (int i = 0; i < count; i++)
14     {
15         ivalue = parr[i];
16         je.add("p", ivalue);
17         je.add("s", sarr[i]);
18         je.add("i", iarr[i]);
19         std::cout << "parr:" << je.tostring() << std::endl;
20         objson["winddirectline"]["coordinates"][num]["mwinddirectbaseline"].add(je);
21         je.clear();
22     }
23     cout <<"---------------" << endl;
24     for (int i = 0; i < objson["winddirectline"]["coordinates"][num]["mwinddirectbaseline"].getarraysize(); i++)
25     {
26         cout << "mwinddirectbaseline" << i << ":" << objson["winddirectline"]["coordinates"][num]["mwinddirectbaseline"][i]("p") << endl;
27     }
28     cout << "---------------" << endl;
29 }

2.修改如下图数据结构：

 1 __declspec(dllexport)  void  __stdcall upmwinddirectbars(int num,int count, char** fparr,int* fsarr, int* fiarr, char** hparr, int* hsarr, int* hiarr)
 2 {
 3     string ivalue;
 4     for (int i = 0; i < objson["winddirectline"]["coordinates"][num]["mwinddirectbars"].getarraysize(); i++)
 5     {
 6         objson["winddirectline"]["coordinates"][num]["mwinddirectbars"].delete(i);
 7         i--;
 8     }
 9     cout << "---------------" << endl;
10     cjsonobject je;
11     for (int i = 0; i < count; i++)
12     {
13         ivalue = fparr[i];
14         je.addemptysubobject("f");
15         je["f"].add("p", ivalue);
16         je["f"].add("s", fsarr[i]);
17         je["f"].add("i", fiarr[i]);
18         ivalue = hparr[i];
19         je.addemptysubobject("h");
20         je["h"].add("p", ivalue);
21         je["h"].add("s", hsarr[i]);
22         je["h"].add("i", hiarr[i]);
23         std::cout << "parr:" << je.tostring() << std::endl;
24         objson["winddirectline"]["coordinates"][num]["mwinddirectbars"].add(je);
25         je.clear();
26     }
27     cout << "---------------" << endl;
28 }

3.修改如下图数据结构：

 1 __declspec(dllexport)  void  uphuxianarrays( int count, double* fparr, double* fsarr, double* fiarr)
 2 {
 3     std::cout << "-------------------------------------------------------------------" << std::endl;
 4 
 5 
 6     for (int i = 0; i <objson["resultwindspeedgrid"]["huxianarrays"].getarraysize(); i++)
 7     {
 8         objson["resultwindspeedgrid"]["huxianarrays"].delete(i);
 9         i--;
10     }
11     cout << "count:" << objson["resultwindspeedgrid"]["huxianarrays"].getarraysize() << endl;
12     cout << "---------------" << endl;
13     cjsonobject je;
14     for (int i = 0; i < count; i++)
15     {
16         je.addemptysubarray("params");
17         je["params"].add(fparr[i]);
18         je["params"].add(fsarr[i]);
19         je["params"].add(fiarr[i]);
20         std::cout << "parr:" << je.tostring() << std::endl;
21         objson["resultwindspeedgrid"]["huxianarrays"].add(je);
22         je.clear();
23     }
24     objson["resultwindspeedgrid"].replace("huxianshu", objson["resultwindspeedgrid"]["huxianarrays"].getarraysize());
25     cout << "---------------" << endl;
26 }

官方案例：

 1 int ivalue;
 2     std::string strvalue;
 3     neb::cjsonobject ojson("{\"refresh_interval\":60,"
 4         "\"dynamic_loading\":["
 5         "{"
 6         "\"so_path\":\"plugins/user.so\", \"load\":false, \"version\":1,"
 7         "\"cmd\":["
 8         "{\"cmd\":2001, \"class\":\"neb::cmduserlogin\"},"
 9         "{\"cmd\":2003, \"class\":\"neb::cmduserlogout\"}"
10         "],"
11         "\"module\":["
12         "{\"path\":\"im/user/login\", \"class\":\"neb::modulelogin\"},"
13         "{\"path\":\"im/user/logout\", \"class\":\"neb::modulelogout\"}"
14         "]"
15         "},"
16         "{"
17         "\"so_path\":\"plugins/chatmsg.so\", \"load\":false, \"version\":1,"
18         "\"cmd\":["
19         "{\"cmd\":2001, \"class\":\"neb::cmdchat\"}"
20         "],"
21         "\"module\":[]"
22         "}"
23         "]"
24         "}");
25     std::cout << ojson.tostring() << std::endl;
26     std::cout << "-------------------------------------------------------------------" << std::endl;
27     std::cout << ojson["dynamic_loading"][0]["cmd"][1]("class") << std::endl;
28     ojson["dynamic_loading"][0]["cmd"][0].get("cmd", ivalue);
29     std::cout << "ivalue = " << ivalue << std::endl;
30     ojson["dynamic_loading"][0]["module"][0].get("path", strvalue);
31     std::cout << "strvalue = " << strvalue << std::endl;
32     std::cout << "-------------------------------------------------------------------" << std::endl;
33     ojson.addemptysubobject("depend");
34     ojson["depend"].add("nebula", "https://github.com/bwar/nebula");
35     ojson["depend"].addemptysubarray("bootstrap");
36     ojson["depend"]["bootstrap"].add("beacon");
37     ojson["depend"]["bootstrap"].add("logic");
38     ojson["depend"]["bootstrap"].add("logger");
39     ojson["depend"]["bootstrap"].add("interface");
40     ojson["depend"]["bootstrap"].add("access");
41     ojson["depend"].addemptysubarray("boot");
42     cjsonobject ject;
43     string ivalues;
44     for (int i = 0; i < count; i++)
45     {
46         ivalues = parr[i];
47         ject.add("p", ivalues);
48         ject.add("s", 0);
49         ject.add("i", -1);
50         std::cout << "parr:" << ject.tostring() << std::endl;
51         ojson["depend"]["boot"].add(ject);
52         ject.clear();
53     }
54     std::cout << ojson.tostring() << std::endl;
55     std::cout << "-------------------------------------------------------------------" << std::endl;
56     std::cout << ojson.toformattedstring() << std::endl;

完整案例下载地址：https://files-cdn.cnblogs.com/files/motao9527/cjsonobject.rar