JSON-C

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//----------------------------------------------------//AUTHOR: lanyang123456//DATE: 2014-12-13//----------------------------------------------------json-c介绍与库下载请参考https://github.com/json-c/json-c/wiki[cpp] view plain copy
#include       #include             void test_jsonc()      {                struct json_object *infor_object = NULL;          infor_object = json_object_new_object();          if (NULL == infor_object)          {              printf("new json object failed.\n");              return;          }                struct json_object *para_object = NULL;          para_object = json_object_new_object();          if (NULL == para_object)          {              json_object_put(infor_object);//free              printf("new json object failed.\n");              return;          }                struct json_object *array_object = NULL;          array_object = json_object_new_array();          if (NULL == array_object)          {              json_object_put(infor_object);//free              json_object_put(para_object);//free              printf("new json object failed.\n");              return;          }                /*添加json值类型到数组中*/          json_object_array_add(array_object, json_object_new_int(256));          json_object_array_add(array_object, json_object_new_int(257));          json_object_array_add(array_object, json_object_new_int(258));                json_object_object_add(para_object, "DeviceId", json_object_new_string("sn_iso_9000"));          json_object_object_add(para_object, "MacAddr", json_object_new_string("AA:BB:CC:DD:EE:FF"));          json_object_object_add(para_object, "Visible", json_object_new_int(1));                /*添加json名称和值到json对象集合中*/          json_object_object_add(infor_object, "method", json_object_new_string("GetSystemInfo"));          json_object_object_add(infor_object, "param", para_object);          json_object_object_add(infor_object, "id", json_object_new_string("101"));                /*添加数组集合到json对象中*/          json_object_object_add(infor_object, "array", array_object);                printf("-----------json infor ---------------------------\n");          printf("%s\n", json_object_to_json_string(infor_object));          printf("-----------json infor ---------------------------\n");                struct json_object *result_object = NULL;                      result_object =  json_object_object_get(infor_object, "method");          printf("-----------result_object method ---------------------------\n");          printf("%s\n", json_object_to_json_string(result_object));          printf("-----------result_object method---------------------------\n");                result_object =  json_object_object_get(infor_object, "param");          printf("-----------result_object param ---------------------------\n");          printf("%s\n", json_object_to_json_string(result_object));          printf("-----------result_object param---------------------------\n");                result_object =  json_object_object_get(infor_object, "array");          printf("-----------result_object  array---------------------------\n");          printf("%s\n", json_object_to_json_string(result_object));          printf("-----------result_object array---------------------------\n");                int i;          for(i = 0; i < json_object_array_length(result_object); i++) {            struct json_object *obj = json_object_array_get_idx(result_object, i);            printf("\t[%d]=%s\n", i, json_object_to_json_string(obj));          }                json_object_put(infor_object);//free            }                  int main(int argc, char *argv[])      {          test_jsonc();                return 0;      }  编译与执行$ gcc -o test1 test1.c -ljson$ ./test1-----------json infor ---------------------------{ "method": "GetSystemInfo", "param": { "DeviceId": "sn_iso_9000", "MacAddr": "AA:BB:CC:DD:EE:FF", "Visible": 1 }, "id": "101", "array": [ 256, 257, 258 ] }-----------json infor --------------------------------------result_object method ---------------------------"GetSystemInfo"-----------result_object method--------------------------------------result_object param ---------------------------{ "DeviceId": "sn_iso_9000", "MacAddr": "AA:BB:CC:DD:EE:FF", "Visible": 1 }-----------result_object param--------------------------------------result_object  array---------------------------[ 256, 257, 258 ]-----------result_object array---------------------------    [0]=256    [1]=257    [2]=258
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