windows系统MySQL支持调用http接口（mysql-udf-http）
Windows平台MySQL调用外部http接口详解
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- Linux下mysql-udf-http
- windows下mysql-udf-http
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Linux下mysql-udf-http
- mysql-udf-http在Linux下编译安装，MySQL数据库创建函数后，可使用http_post或http_get调用外部接口。
windows下mysql-udf-http
- mysql-udf-http.c 此链接可下载包含了关于http_get以及http_post方法，可通过
visual studio编译生成dll文件。
注意图中使用Windows常用工具创建win32位可生成dll的项目
注意此处必须选择dll
导入下载的.c文件，此文件是之前在网络上经过我大量筛选所得，需要根据自身环境以及使用情况去修改源文件，如遇到源文件一直报错编译不通过，可查阅官网资料，或留言一起讨论。
以下是题外话：
一般情况下原文中我不会贴源代码，（主要太影响别人阅读，都是说到哪儿，截取那部分，而且我写博客的版式不太好，但是我觉的我把我知道的技术分享给需要的人才是最重要的，）一般都是放附件或者网盘，评论区留邮箱也会发附件等等，但之前我一篇文章中分段贴了源码有人竟然说我的附件不能用，我看了下载记录他并没有下载，想着让我给他发原件，我就呵呵了，你要是没有积分，留个邮箱我一般看见了也会直接发附件的，技术是一个分享过程，而不是在别人评论区瞎喊，旺柴，你记住了么
最后贴出源文件：
#include ')." ,
MYSQL_ERRMSG_SIZE);
return 1;
}
args->arg_type[0]= STRING_RESULT;
initid->max_length= CURL_UDF_MAX_SIZE;
container= (st_curl_results *)malloc(sizeof(st_curl_results));
initid->ptr= (char *)container;
return 0;
}
char *http_get(UDF_INIT *initid, UDF_ARGS *args,
__attribute__ ((unused)) char *result,
unsigned long *length,
__attribute__ ((unused)) char *is_null,
__attribute__ ((unused)) char *error)
{
CURLcode retref;
CURL *curl;
st_curl_results *res= (st_curl_results *)initid->ptr;
curl_global_init(CURL_GLOBAL_ALL);
curl= curl_easy_init();
res->result= NULL;
res->size= 0;
if (curl)
{
curl_easy_setopt(curl, CURLOPT_URL, args->args[0]);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, result_cb);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)res);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "mysql-udf-http/1.0");
retref= curl_easy_perform(curl);
if (retref) {
fprintf(stderr, "error\n");
strcpy(res->result,"");
*length= 0;
}
}
else
{
strcpy(res->result,"");
*length= 0;
}
curl_easy_cleanup(curl);
*length= res->size;
return ((char *) res->result);
}
void http_get_deinit(UDF_INIT *initid)
{
/* if we allocated initid->ptr, free it here */
st_curl_results *res= (st_curl_results *)initid->ptr;
free(res->result);
free(res);
return;
}
/* ------------------------HTTP POST----------------------------- */
my_bool http_post_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
st_curl_results *container;
if (args->arg_count != 2)
{
strncpy(message,
"two arguments must be supplied: http_post('','')." ,
MYSQL_ERRMSG_SIZE);
return 1;
}
args->arg_type[0]= STRING_RESULT;
initid->max_length= CURL_UDF_MAX_SIZE;
container= (st_curl_results *)malloc(sizeof(st_curl_results));
initid->ptr= (char *)container;
return 0;
}
char *http_post(UDF_INIT *initid, UDF_ARGS *args,
__attribute__ ((unused)) char *result,
unsigned long *length,
__attribute__ ((unused)) char *is_null,
__attribute__ ((unused)) char *error)
{
CURLcode retref;
CURL *curl;
st_curl_results *res= (st_curl_results *)initid->ptr;
curl_global_init(CURL_GLOBAL_ALL);
curl= curl_easy_init();
res->result= NULL;
res->size= 0;
if (curl)
{
struct curl_slist *chunk = NULL;
chunk = curl_slist_append(chunk, "Expect:");
curl_easy_setopt(curl, CURLOPT_URL, args->args[0]);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, result_cb);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)res);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "mysql-udf-http/1.0");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, args->args[1]);
retref= curl_easy_perform(curl);
if (retref) {
fprintf(stderr, "error\n");
strcpy(res->result,"");
*length= 0;
}
}
else
{
strcpy(res->result,"");
*length= 0;
}
curl_easy_cleanup(curl);
*length= res->size;
return ((char *) res->result);
}
void http_post_deinit(UDF_INIT *initid)
{
/* if we allocated initid->ptr, free it here */
st_curl_results *res= (st_curl_results *)initid->ptr;
free(res->result);
free(res);
return;
}
/* ------------------------HTTP PUT----------------------------- */
my_bool http_put_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
st_curl_results *container;
if (args->arg_count != 2)
{
strncpy(message,
"two arguments must be supplied: http_put('','')." ,
MYSQL_ERRMSG_SIZE);
return 1;
}
args->arg_type[0]= STRING_RESULT;
initid->max_length= CURL_UDF_MAX_SIZE;
container= (st_curl_results *)malloc(sizeof(st_curl_results));
initid->ptr= (char *)container;
return 0;
}
char *http_put(UDF_INIT *initid, UDF_ARGS *args,
__attribute__ ((unused)) char *result,
unsigned long *length,
__attribute__ ((unused)) char *is_null,
__attribute__ ((unused)) char *error)
{
CURLcode retref;
CURL *curl;
st_curl_results *res= (st_curl_results *)initid->ptr;
curl_global_init(CURL_GLOBAL_ALL);
curl= curl_easy_init();
res->result= NULL;
res->size= 0;
if (curl)
{
struct curl_slist *chunk = NULL;
chunk = curl_slist_append(chunk, "Expect:");
curl_easy_setopt(curl, CURLOPT_URL, args->args[0]);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, result_cb);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)res);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "mysql-udf-http/1.0");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, args->args[1]);
retref= curl_easy_perform(curl);
if (retref) {
fprintf(stderr, "error\n");
strcpy(res->result,"");
*length= 0;
}
}
else
{
strcpy(res->result,"");
*length= 0;
}
curl_easy_cleanup(curl);
*length= res->size;
return ((char *) res->result);
}
void http_put_deinit(UDF_INIT *initid)
{
/* if we allocated initid->ptr, free it here */
st_curl_results *res= (st_curl_results *)initid->ptr;
free(res->result);
free(res);
return;
}
/* ------------------------HTTP DELETE----------------------------- */
my_bool http_delete_init(UDF_INIT *initid, UDF_ARGS *args, char *message)
{
st_curl_results *container;
if (args->arg_count != 1)
{
strncpy(message,
"one arguments must be supplied: http_delete('')." ,
MYSQL_ERRMSG_SIZE);
return 1;
}
args->arg_type[0]= STRING_RESULT;
initid->max_length= CURL_UDF_MAX_SIZE;
container= (st_curl_results *)malloc(sizeof(st_curl_results));
initid->ptr= (char *)container;
return 0;
}
char *http_delete(UDF_INIT *initid, UDF_ARGS *args,
__attribute__ ((unused)) char *result,
unsigned long *length,
__attribute__ ((unused)) char *is_null,
__attribute__ ((unused)) char *error)
{
CURLcode retref;
CURL *curl;
st_curl_results *res= (st_curl_results *)initid->ptr;
curl_global_init(CURL_GLOBAL_ALL);
curl= curl_easy_init();
res->result= NULL;
res->size= 0;
if (curl)
{
curl_easy_setopt(curl, CURLOPT_URL, args->args[0]);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, result_cb);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)res);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "mysql-udf-http/1.0");
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
retref= curl_easy_perform(curl);
if (retref) {
fprintf(stderr, "error\n");
strcpy(res->result,"");
*length= 0;
}
}
else
{
strcpy(res->result,"");
*length= 0;
}
curl_easy_cleanup(curl);
*length= res->size;
return ((char *) res->result);
}
void http_delete_deinit(UDF_INIT *initid)
{
/* if we allocated initid->ptr, free it here */
st_curl_results *res= (st_curl_results *)initid->ptr;
free(res->result);
free(res);
return;
}