cJSON学习笔记 续集

void create_single_number(void) {
    cJSON *root;
    char *out;
    int value = 24;

    root = cJSON_CreateObject(); // 创建根

    cJSON_AddItemToObject(root, "value", cJSON_CreateNumber(value));

    // 打印并释放
    out = cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);

    // 控制台输出
#if 0
    {
        "value": 24
    }
#endif
}

void create_single_string(void) {
    cJSON *root;
    char *out;
    char *name = "xukai871105";

    root = cJSON_CreateObject(); // 创建根
    // 方法 使用cJSON_AddItemToObject，推荐使用
    cJSON_AddItemToObject(root, "name", cJSON_CreateString(name));

    // 打印并释放
    out = cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);

    // 控制台输出
#if 0
    {
        "name": "xukai871105"
    }
#endif
}

void create_bool(void) {
    cJSON *root;
    char *out;

    root = cJSON_CreateObject(); // 创建根

    cJSON_AddItemToObject(root, "success", cJSON_CreateFalse());

    // 打印并释放
    out = cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);

    // 控制台输出
#if 0
    {
        "success": false
    }
#endif
}

void create_simple(void) {
    cJSON *root;
    char *out;
    int list[4] = {5,6,7,8};

    root = cJSON_CreateObject(); // 创建根
    cJSON_AddItemToObject(root, "lists", cJSON_CreateIntArray(list, 4));

    // 打印并释放
    out = cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);

    // 控制台输出
#if 0
    {
        "lists": [5, 6, 7, 8]
    }
#endif
}

void create_complex(void) {
cJSON *root, *rows, *row;
char *out;
int i = 0;

char *title[3] = { "树莓派学习笔记——索引博文",
"树莓派学习笔记——GPIO功能学习",
"物联网学习笔记——索引博文"};
char *url[3] = { "http://blog.csdn.net/xukai871105/article/details/23115627",
"http://blog.csdn.net/xukai871105/article/details/12684617",
"http://blog.csdn.net/xukai871105/article/details/23366187"};

root = cJSON_CreateObject(); // 创建根
cJSON_AddNumberToObject(root, "total", 3);

// 在object中加入array
cJSON_AddItemToObject(root, "rows", rows = cJSON_CreateArray());

for(i = 0; i < 3; i++) {
// 在array中加入object
cJSON_AddItemToArray(rows, row = cJSON_CreateObject());
cJSON_AddItemToObject(row, "title", cJSON_CreateString(title[i]));
cJSON_AddItemToObject(row, "url", cJSON_CreateString(url[i]));
}

// 打印并释放
out = cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);

// 控制台输出
#if 0
{
"total": 3,
"rows": [{
"title": "树莓派学习笔记——索引博文",
"url": "http://blog.csdn.net/xukai871105/article/details/23115627"
}, {
"title": "树莓派学习笔记——GPIO功能学习",
"url": "http://blog.csdn.net/xukai871105/article/details/12684617"
}, {
"title": "物联网学习笔记——索引博文",
"url": "http://blog.csdn.net/xukai871105/article/details/23366187"
}]
}
#endif
}