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<pre name="code" class="cpp">#include <stdio.h>

#include <json/json.h>

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;

}