ESP32S3/main/http_request.c

// http_request.c
#include "esp_http_client.h"
#include "esp_log.h"

static const char *TAG = "http_request";

// HTTP事件处理函数
esp_err_t _http_event_handler(esp_http_client_event_t *evt)
{
    switch (evt->event_id) {
        case HTTP_EVENT_ERROR:
            ESP_LOGD(TAG, "HTTP_EVENT_ERROR");
            break;
        case HTTP_EVENT_ON_CONNECTED:
            ESP_LOGD(TAG, "HTTP_EVENT_ON_CONNECTED");
            break;
        case HTTP_EVENT_ON_DATA:
            ESP_LOGD(TAG, "HTTP_EVENT_ON_DATA, len=%d", evt->data_len);
            if (evt->data_len) {
                ESP_LOGI(TAG, "Received data: %.*s", evt->data_len, (char*)evt->data);
            }
            break;
        case HTTP_EVENT_ON_FINISH:
            ESP_LOGD(TAG, "HTTP_EVENT_ON_FINISH");
            break;
        case HTTP_EVENT_DISCONNECTED:
            ESP_LOGI(TAG, "HTTP_EVENT_DISCONNECTED");
            break;
        default:
            break;
    }
    return ESP_OK;
}

// 发起一个简单的GET请求
void http_get_request(void)
{
    esp_http_client_config_t config = {
        .url = "http://60.204.139.57:6002/categories",  // 替换为你要请求的URL
        .event_handler = _http_event_handler,
    };
    esp_http_client_handle_t client = esp_http_client_init(&config);

    // 执行GET请求
    esp_err_t err = esp_http_client_perform(client);
    if (err == ESP_OK) {
        ESP_LOGI(TAG, "HTTP GET Status = %d, content_length = %"PRId64,
                 esp_http_client_get_status_code(client),
                 esp_http_client_get_content_length(client));
    } else {
        ESP_LOGE(TAG, "HTTP GET request failed: %s", esp_err_to_name(err));
    }

    esp_http_client_cleanup(client);
}