RT-Thread studio webclient+Cjson上传json数据包的方法

#define POST_RESP_BUFSZ 1024

#define POST_HEADER_BUFSZ 1024

#define POST_LOCAL_URI "www.baidu.com"

static int webclient_post_comm(const char *uri, const char *post_data)

{

struct webclient_session* session = RT_NULL;

unsigned char *buffer = RT_NULL;

int index, ret = 0;

int bytes_read, resp_status;

buffer = (unsigned char *) web_malloc(POST_RESP_BUFSZ);

if (buffer == RT_NULL)

{

rt_kprintf("no memory for receive response buffer.\n");

ret = -RT_ENOMEM;

goto __exit;

}

/* create webclient session and set header response size */

session = webclient_session_create(POST_HEADER_BUFSZ);

if (session == RT_NULL)

{

ret = -RT_ENOMEM;

goto __exit;

}

/* build header for upload */

webclient_header_fields_add(session, "Content-Length: %d\r\n", strlen(post_data));

webclient_header_fields_add(session, "Content-Type: application/json\r\n");

/* send POST request by default header */

if ((resp_status = webclient_post(session, uri, post_data)) != 200)

{

rt_kprintf("webclient POST request failed, response(%d) error.\n", resp_status);

ret = -RT_ERROR;

goto __exit;

}

rt_kprintf("webclient post response data: \n");

do

{

bytes_read = webclient_read(session, buffer, POST_RESP_BUFSZ);

if (bytes_read <= 0)

{

break;

}

for (index = 0; index < bytes_read; index++)

{

rt_kprintf("%c", buffer[index]);

}

} while (1);

rt_kprintf("\n");

__exit:

if (session)

{

webclient_close(session);

}

if (buffer)

{

web_free(buffer);

}

return ret;

}

void httponline_test(void){

cJSON *cdata = cJSON_CreateObject();

cJSON *ccar= cJSON_CreateString("False");

cJSON *ccheckStatus = cJSON_CreateString("1");

cJSON_AddItemToObject(cdata, "car", ccar);

cJSON_AddItemToObject(cdata, "checkStatus", ccheckStatus);

cJSON *cupload = cJSON_CreateObject();

cJSON_AddItemToObject(cupload, "data", cdata);

cJSON *ctype = cJSON_CreateNumber(0);

cJSON_AddItemToObject(cupload, "type", ctype);

LOG_D(cJSON_Print(cupload));

char *post_data=cJSON_Print(cupload);

char *uri = RT_NULL;

uri = web_strdup(POST_LOCAL_URI);

if(uri == RT_NULL)

{

rt_kprintf("no memory for create post request uri buffer.\n");

//return -RT_ENOMEM;

}

for(int i=0;i<10;i++){

rt_thread_mdelay(1000);

webclient_post_comm(uri,post_data);

}

}

MSH_CMD_EXPORT(httponline_test, httponline_test);

POST_LOCAL_URI填自己需要上传数据的地址

webclient配置:

其他配置：

原作者：达克尔_Y