{"id":170,"date":"2025-05-18T10:23:19","date_gmt":"2025-05-18T02:23:19","guid":{"rendered":"http:\/\/47.111.133.139\/?p=170"},"modified":"2025-10-23T11:01:20","modified_gmt":"2025-10-23T03:01:20","slug":"httpd%ef%bc%88%e6%9c%aa%e5%ae%8c%e6%88%90%ef%bc%89","status":"publish","type":"post","link":"https:\/\/yin.nnneri.me\/?p=170","title":{"rendered":"httpd"},"content":{"rendered":"<h2>\u5e93<\/h2>\n<ul>\n<li><code>esp_http_server.h<\/code><\/li>\n<li><code>esp_log.h<\/code><\/li>\n<\/ul>\n<h2>\u521d\u59cb\u5316<\/h2>\n<p><strong>\u524d\u63d0\uff1a\u7f51\u7edc\u76f8\u5173\u914d\u7f6e\u5df2\u7ecf\u5b8c\u6210<\/strong><\/p>\n<ul>\n<li>\u83b7\u53d6httpd\u9ed8\u8ba4\u914d\u7f6e <code>\u00a0httpd_config_t Config = HTTPD_DEFAULT_CONFIG()<\/code><\/li>\n<li>\u521b\u5efahttp\u670d\u52a1\u5668\u53e5\u67c4 <code>static httpd_handle_t Server<\/code><\/li>\n<li>\u542f\u52a8\u670d\u52a1\u5668 <code>httpd_start()<\/code><\/li>\n<li>\u6ce8\u518c\u4e00\u4e2a\u6216\u591a\u4e2aurl\u56de\u8c03 <code>httpd_register_uri_handler()<\/code><\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<br \/>\n\u83b7\u53d6\u9ed8\u8ba4\u914d\u7f6e -> \u83b7\u53d6http\u670d\u52a1\u5668\u53e5\u67c4 -> \u542f\u52a8\u670d\u52a1\u5668 -> \u6ce8\u518c\u56de\u8c03<\/p>\n<pre><code class=\"language-c \">static httpd_handle_t Server = NULL;\n\nvoid httpServerStart()\n{\n  if (Server == NULL) return;\n  httpd_config_t Config = HTTPD_DEFAULT_CONFIG();\n  \/* \u542f\u52a8HTTP\u670d\u52a1\u5668 *\/\n  if (httpd_start(&amp;Server, &amp;Config) == ESP_OK) {\n    \/* \u5728\u8fd9\u91cc\u6ce8\u518c\u4f60\u7684\u56de\u8c03 *\/\n    httpd_register_uri_handler(Server, &amp;&lt;\u4f60\u7684\u56de\u8c03\u53e5\u67c4&gt;);\n  }\n}\n\n<\/code><\/pre>\n<p>\u56de\u8c03\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-c \">\/* \u63a5\u6536 *\/\nesp_err_t httpPostHandler(httpd_req_t *r)\n{\n    \/* \u5b9e\u73b0\u4f60\u7684\u7a0b\u5e8f *\/\n    \/\/httpd_resp_send(r, SendData, HTTPD_RESP_USE_STRLEN);\n    return ESP_OK;\n}\n\n\/* \u4f20\u8f93\u7f51\u9875 *\/\nesp_err_t httpGetHandler(httpd_req_t *r)\n{\n    \/* \u5b9e\u73b0\u4f60\u7684\u7a0b\u5e8f *\/\n    \/\/httpd_resp_send(r, SendData, HTTPD_RESP_USE_STRLEN);\n    return ESP_OK;\n}\n\n\/* post\u8bf7\u6c42 *\/\nhttpd_uri_t UriPost = {\n    .uri = \"\/text\",               \/\/\u6309\u7167\u5b9e\u9645\u60c5\u51b5\u66f4\u6539\n    .method = HTTP_POST,\n    .handler = httpPostHandler,\n    .user_ctx = NULL\n};\n\n\/* get\u8bf7\u6c42 get\u7f51\u9875 *\/\nhttpd_uri_t UriGet = {\n    .uri = \"\/\",                   \n    .method = HTTP_GET,\n    .handler = httpGetHandler,\n    .user_ctx = NULL\n};\n\n<\/code><\/pre>\n<h2>\u5173\u95ed<\/h2>\n<p><code>esp_err_t httpd_stop(httpd_handle_t handle)<\/code><\/p>\n<h2>\u4f20\u8f93\u6280\u5de7<\/h2>\n<p>\u90e8\u5206\u5b58\u50a8\u5728\u7247\u5185rom\u6216\u8005\u5916\u7f6e\u5b58\u50a8\u5668\u7684\u5185\u5bb9\u53ef\u80fd\u8fc7\u4e8e\u5e9e\u5927\uff0c\u8f83\u96be\u5728\u4e00\u6b21\u4f20\u8f93\u5185\u5b8c\u6210\uff08\u8fd9\u79cd\u6570\u636e\u901a\u5e38\u9700\u8981\u5148\u7ecf\u624b\u5185\u5b58\uff0c\u6b64\u65f6\u5c31\u53ef\u80fd\u51fa\u73b0\u5185\u5b58\u4e0d\u8db3\uff09<br \/>\n\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\uff1a\u5206\u6210\u591a\u4e2a\u533a\u5757\u5b8c\u6210<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-c \">const char* WebDataUrl = \"\/spiflash\/web.txt\"; \/\/\u50a8\u5b58\u5728\u7247\u5185rom\u7684\u6bd4\u8f83\u5e9e\u5927\u7684\u6570\u636e\n\nvoid httpSendChunk(httpd_req_t *r)\n{\n    \/* \u5e38\u89c4\u7684\u8bfb\u53d6\u65b9\u5f0f *\/\n    FILE *File = fopen(WebDataUrl,\"rb\");\n    if (File == NULL) {\n        ESP_LOGE(__func__,\"Failed to open file\");\n        return;\n    }\n    uint8_t Buffer[384];    \/\/\u4f7f\u7528\u5206\u5757\u4f20\u8f93\u53ef\u4ee5\u4f7f\u7528\u5f88\u5c0f\u7684Buffer\n    int32_t ReadBytes = 0;  \/\/\u83b7\u53d6fread\u6210\u529f\u8bfb\u53d6\u7684\u5b57\u8282\u6570\n    \/* \u91cd\u590d\u8c03\u7528fread\u5e76\u6bcf\u6b21\u8bfb\u53d6\u4e00\u5b9a\u6570\u91cf\u7684\u503c\uff0c\u6587\u4ef6\u6307\u9488\u4f1a\u9010\u6e10\u540e\u79fb\uff0c\u76f4\u5230\u89e6\u78b0\u5230\u6587\u4ef6\u672b\u5c3e\uff0c\u5faa\u73af\u8df3\u51fa *\/\n    while ((ReadBytes = fread(Buffer, 1, sizeof(Buffer), File)) &gt; 0) {\n        httpd_resp_send_chunk(r, (const char*)Buffer, ReadBytes);\n    } \n    httpd_resp_send_chunk(r, NULL, 0); \/\/\u7ed3\u675f\u5206\u5757\u4f20\u8f93\n    fclose(File);\n}\n<\/code><\/pre>\n<p>\u540c\u7406\uff0c\u5f53post\u5185\u5bb9\u8fc7\u591a\u65f6\uff0c\u4e5f\u53ef\u7528\u8be5\u5206\u5757\u65b9\u5f0f\u51cf\u8f7b\u670d\u52a1\u7aef\u8d1f\u62c5<\/p>\n<p>\u793a\u4f8b<\/p>\n<pre><code class=\"language-c \">#define CHUNK_SIZE 512 \/\/\u63a5\u6536\u7f13\u51b2\u533a\u5927\u5c0f\nesp_err_t httpPostHandler(httpd_req_t *r) {\n    uint8_t buffer[CHUNK_SIZE];\n    int32_t remaining = r-&gt;content_len;\n\n    while (remaining &gt; 0) {\n        int32_t to_read = (remaining &gt; CHUNK_SIZE) ? CHUNK_SIZE : remaining; \/\/\u5c1d\u8bd5\u8bfb\u53d6\u4e0d\u8d85\u8fc7\u7f13\u51b2\u533a\u5927\u5c0f\u7684\u6700\u5927\u503c\n        int32_t ret = httpd_req_recv(r, (char*)buffer, to_read);\n        if (ret &lt;= 0) {\n            if (ret == HTTPD_SOCK_ERR_TIMEOUT) {\n                httpd_resp_send_408(r);\n            }\n            return ESP_FAIL;\n        }\n        remaining -= ret;\n        \/* \u5b9e\u73b0\u4f60\u7684\u5904\u7406\u7a0b\u5e8f *\/\n    }\n    httpd_resp_send_chunk(r, NULL, 0);  \/\/ \u7ed3\u675f\u5206\u5757\u4f20\u8f93\n    return ESP_OK;\n}\n<\/code><\/pre>\n<h2>\u6ce8\u610f\u4e8b\u9879<\/h2>\n<h3>httpd_parse: parse_block: request URI\/header too long \u95ee\u9898\u89e3\u51b3\u65b9\u6848<\/h3>\n<p>\u90e8\u5206\u5b89\u5353\u673a\u81ea\u5e26Webview\u4f1a\u51fa\u73b0\u6b64\u7c7b\u95ee\u9898\uff0c<br \/>\n\u63d0\u9ad8 <code>sdkconfig<\/code> \u4e2d\u7684 <code>Max HTTP Request Header Length<\/code> \u7684\u503c<\/p>\n<h3>httpd_uri: httpd_register_uri_handler: no slots left for registering handler \u95ee\u9898\u89e3\u51b3\u65b9\u6848<\/h3>\n<p>\u6ce8\u518c <code>httpd_register_uri_handler<\/code> \u6570\u91cf\u8fc7\u591a\u5bfc\u81f4<br \/>\n\u89e3\u51b3\u65b9\u6848\uff1a\u63d0\u5347<code>max_uri_handlers<\/code>\u6570\u91cf<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-c \">...\nhttpd_config_t Config = HTTPD_DEFAULT_CONFIG();\nConfig.max_uri_handlers = 10; \/\/\u63d0\u5347\u6570\u91cf\n...\n<\/code><\/pre>\n<h2>\u9644\u5f55<\/h2>\n<h3>\u5ba2\u6237\u7aef\u7f51\u9875\u89e3\u6790\u53d1\u9001\u6570\u636e\u53ca\u89e3\u6790<\/h3>\n<p>\u793a\u4f8b\uff1a\u53d1\u9001\u4e00\u4e2a\u6570\u636e\u5305\uff08\u963b\u585e\uff09<\/p>\n<pre><code class=\"language-javascript \">const text = ...\n...\nconst response = await fetch('\/text') { \/\/ \u6839\u636e\u5b9e\u9645\u60c5\u51b5\u7f16\u5199\u8def\u5f84\n  method: 'POST',\n  body: text \/\/ \u6362\u6210\u81ea\u5df1\u7684\u5305\n}\n\n<\/code><\/pre>\n<p>\u63a5\u6536\u4e00\u4e2a\u6570\u636e\u5305\uff08\u963b\u585e\uff09<\/p>\n<pre><code class=\"language-javascript \">const response = await fetch('\/status'); \/\/ \u6839\u636e\u5b9e\u9645\u60c5\u51b5\u7f16\u5199\u8def\u5f84\n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5e93 esp_http_server.h esp_log.h \u521d\u59cb\u5316 \u524d\u63d0\uff1a\u7f51\u7edc\u76f8\u5173\u914d\u7f6e\u5df2\u7ecf\u5b8c\u6210 \u83b7\u53d6httpd\u9ed8\u8ba4\u914d\u7f6e \u00a0http &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[4],"tags":[],"class_list":["post-170","post","type-post","status-publish","format-standard","hentry","category-esp32"],"_links":{"self":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts\/170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=170"}],"version-history":[{"count":15,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts\/170\/revisions"}],"predecessor-version":[{"id":461,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts\/170\/revisions\/461"}],"wp:attachment":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}