博客

#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