Network

请教 httpclient 如何 Post 数据

发布于 2019-05-28 11:04:10 浏览：1687 订阅该版

13 个回答

wangbo 2019-05-28

这家伙很懒，什么也没写！

aozima 2019-05-28

调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。

wangbo 2019-05-28

这家伙很懒，什么也没写！

wangbo 2019-05-28

这家伙很懒，什么也没写！

Cheney_Chen 2019-05-28

这家伙很懒，什么也没写！

wangbo 2019-05-31

这家伙很懒，什么也没写！

目前用的最新版本 Webclient 2.1.0

#include <stdint.h>
#include <stdlib.h>

#include <rtthread.h>
#include <webclient.h>

#include <dfs_posix.h>

#define DBG_ENABLE
#define DBG_SECTION_NAME               "web.file"
#ifdef WEBCLIENT_DEBUG
#define DBG_LEVEL                      DBG_LOG
#else
#define DBG_LEVEL                      DBG_INFO
#endif /* WEBCLIENT_DEBUG */
#define DBG_COLOR
#include <rtdbg.h>

unsigned char Response[4096];
size_t responselen;

int webclient_post_pic(const char* URI, const char* filename,
        const char* form_data)
{
	int total_write = 0;
    size_t length;
    char boundary[60];
    int fd = -1, rc = WEBCLIENT_OK;
    char *header = RT_NULL, *header_ptr;
    unsigned char *buffer = RT_NULL, *buffer_ptr;
    struct webclient_session* session = RT_NULL;

fd = open(filename, O_RDONLY, 0);
    if (fd < 0)
    {
        LOG_D("post file failed, open file(%s) error.", filename);
        rc = -WEBCLIENT_FILE_ERROR;
        goto __exit;
    }

/* get the size of file */
    length = lseek(fd, 0, SEEK_END);
    lseek(fd, 0, SEEK_SET);

buffer = (unsigned char *) web_malloc(WEBCLIENT_RESPONSE_BUFSZ);
    if (buffer == RT_NULL)
    {
        LOG_D("post file failed, no memory for response buffer.");
        rc = -WEBCLIENT_NOMEM;
        goto __exit;
    }

header = (char *) web_malloc(WEBCLIENT_HEADER_BUFSZ);
    if (header == RT_NULL)
    {
        LOG_D("post file failed, no memory for header buffer.");
        rc = -WEBCLIENT_NOMEM;
        goto __exit;
    }
    header_ptr = header;

/* build boundary */
    rt_snprintf(boundary, sizeof(boundary), "----------------------------%012d", rt_tick_get());

/* build encapsulated mime_multipart information*/
    buffer_ptr = buffer;
    /*¼üÖµ first boundary */
    buffer_ptr += rt_snprintf((char*) buffer_ptr,
            WEBCLIENT_RESPONSE_BUFSZ - (buffer_ptr - buffer), "--%s\r\n", boundary);
	buffer_ptr += rt_snprintf((char*) buffer_ptr,
            WEBCLIENT_RESPONSE_BUFSZ - (buffer_ptr - buffer),
            //"Content-Type: application/json;charset=utf-8\r\n\r\n");
	        "Content-Type: raw\r\n\r\n");
	buffer_ptr += rt_snprintf((char*) buffer_ptr,
            WEBCLIENT_RESPONSE_BUFSZ - (buffer_ptr - buffer),
            "{\"ID\":\"9020\",\"User\":\"\",\"PSW\":\"\",\"MODE\":\"0\"}\r\n");
	/* ÕÕÆ¬*/
	buffer_ptr += rt_snprintf((char*) buffer_ptr,
            WEBCLIENT_RESPONSE_BUFSZ - (buffer_ptr - buffer), "--%s\r\n", boundary);
    buffer_ptr += rt_snprintf((char*) buffer_ptr,
            WEBCLIENT_RESPONSE_BUFSZ - (buffer_ptr - buffer),
            "Content-Disposition: form-data; %s\r\n", form_data);
    buffer_ptr += rt_snprintf((char*) buffer_ptr,
            WEBCLIENT_RESPONSE_BUFSZ - (buffer_ptr - buffer),
            "Content-Type: application/octet-stream\r\n\r\n");
    /* calculate content-length ¼ÆËãbody³¤¶È */
    length += buffer_ptr - buffer;
    length += rt_strlen(boundary) + 6; /* add the last boundary */

/* build header for upload */
    //header_ptr += rt_snprintf(header_ptr,
    //        WEBCLIENT_HEADER_BUFSZ - (header_ptr - header),
    //        "Content-Length: %d\r\n", length);
    //header_ptr += rt_snprintf(header_ptr,
    //        WEBCLIENT_HEADER_BUFSZ - (header_ptr - header),
    //        "Content-Type: multipart/form-data; boundary=%s\r\n", boundary);

session = webclient_session_create(WEBCLIENT_HEADER_BUFSZ);
    if(session == RT_NULL)
    {
        rc = -WEBCLIENT_NOMEM;
        goto __exit;
    }

session->header->buffer = header;

//rc = webclient_post(session, URI, NULL);
	rc = webclient_connect(session, URI);
	if(rc != WEBCLIENT_OK)
    {
        goto __exit;
    }
	/* ×éÍ·*/
	if (webclient_header_fields_add(session, "POST %s HTTP/1.1\r\n", session->req_url) < 0)
        return -WEBCLIENT_NOMEM;
	if (webclient_header_fields_add(session, "Host: %s\r\n", session->host) < 0)
        return -WEBCLIENT_NOMEM;
	if (webclient_header_fields_add(session, "Content-Length: %d\r\n", length) < 0)
        return -WEBCLIENT_NOMEM;
	if (webclient_header_fields_add(session, "Content-Type: multipart/form-data; boundary=%s\r\n\r\n", boundary) < 0)
        return -WEBCLIENT_NOMEM;
	
	webclient_write(session, (unsigned char *) session->header->buffer, session->header->length);

/* send mime_multipart */
    webclient_write(session, buffer, buffer_ptr - buffer);

/* send file data */
    while (1)
    {
        length = read(fd, buffer, WEBCLIENT_RESPONSE_BUFSZ);
        if (length <= 0)
        {
            break;
        }

total_write = webclient_write(session, buffer, length);
		if(total_write < 0)
		{
		    total_write = 0;
		}
    }

/* send last boundary */
    rt_snprintf((char*) buffer, WEBCLIENT_RESPONSE_BUFSZ, "\r\n--%s--\r\n", boundary);
    webclient_write(session, buffer, rt_strlen(boundary) + 6);
	
	responselen = webclient_read(session,Response,4096);
	rt_kprintf("%s",Response);
	if(bblen)
	{
	    bblen = 0;
	}

__exit:
    if (fd >= 0)
    {
        close(fd);
    }

if (session != RT_NULL)
    {
        webclient_close(session);
    }

if (buffer != RT_NULL)
    {
        web_free(buffer);
    }

//if (header != RT_NULL)
    //{
    //    web_free(header);
    //}

return 0;
}

#define POST_URL                 "http://172.16.9.158:8008/DJPT/WellPhoto.ashx?op=dealPhotoData"
#define FORM_DATA                "name=\"Photo\"; filename=\"902020190529094350.jpg\""
void wpost()
{
    webclient_post_pic(POST_URL,"/902020190529095230.jpg",FORM_DATA);
}

#ifdef FINSH_USING_MSH
#include <finsh.h>
FINSH_FUNCTION_EXPORT(wpost, Post file by URL)
#endif /* FINSH_USING_MSH */