新建两个文件 wifi_manager.c和wifi_namager.h文件

新建一个空的项目 再这个项目上进行修，参考官方station项目。

wifi_namager.h与wifi_namager.c以及CMakeLists.txt

#ifndef WIFI_MANAGER_H
#define WIFI_MANAGER_H
typedef enum
{
    WIFI_STATE_CONNECTED,
    WIFI_STATE_DISCONNECTED
}WIFI_STATE;
typedef void(*p_wifi_state_cb)();
void wifi_manager_init(p_wifi_state_cb f);

void wifi_manager_connect(const char *ssid,const char *password);

#endif

#include "wifi_manager.h"
#include "esp_wifi.h"
#include "esp_event.h"
#include "esp_log.h"
#include <stdio.h>

#define MAX_CONNECT_RETRY 10
static int sta_connect_cnt = 0; //重连接次数

#define TAG "wifi_manager"

//当前sta连接状态
static bool is_sta_connected = false;
//wifi状态回调函数
static p_wifi_state_cb wifi_callback = NULL;
static void event_handler(void* arg, esp_event_base_t event_base,
                                int32_t event_id, void* event_data)
{
    if(event_base == WIFI_EVENT)
    {
        switch (event_id)
        {
        case WIFI_EVENT_STA_START:
            esp_wifi_connect();
            break;
        case WIFI_EVENT_STA_DISCONNECTED:
            if(is_sta_connected)
            {
                is_sta_connected = false;
                if(wifi_callback)
                {
                    wifi_callback(WIFI_STATE_DISCONNECTED);
                }
            }
            if(sta_connect_cnt < MAX_CONNECT_RETRY)
            {
                esp_wifi_connect();
                sta_connect_cnt++;
            }
            
            break;
        case WIFI_EVENT_STA_CONNECTED:
            ESP_LOGI(TAG,"connect to AP");
            break;

        default:
            break;
        }

    }
    else if(event_base == IP_EVENT)
    {
        if(event_id == IP_EVENT_STA_GOT_IP)
        {
            ESP_LOGI(TAG,"GET IP ADDR");
            is_sta_connected = true;
            if(wifi_callback)
            {
                wifi_callback(WIFI_STATE_CONNECTED);
            }
        }
    }
}

void wifi_manager_init(p_wifi_state_cb f)
{
    ESP_ERROR_CHECK(esp_netif_init());

    ESP_ERROR_CHECK(esp_event_loop_create_default());
    esp_netif_create_default_wifi_sta();

    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
    ESP_ERROR_CHECK(esp_wifi_init(&cfg));

    ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
                                                        ESP_EVENT_ANY_ID,
                                                        &event_handler,
                                                        NULL,
                                                        NULL));
    ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
                                                        IP_EVENT_STA_GOT_IP,
                                                        &event_handler,
                                                        NULL,
                                                        NULL));
    wifi_callback = f;
    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
    ESP_ERROR_CHECK(esp_wifi_start() );

}

void wifi_manager_connect(const char *ssid,const char *password)
{
    wifi_config_t wifi_config = {
        .sta = {
            .threshold.authmode = WIFI_AUTH_WPA2_PSK,
        },
    };
    snprintf((char *)wifi_config.sta.ssid,31,"%s",ssid);
    snprintf((char *)wifi_config.sta.password,63,"%s",password);
    
    wifi_mode_t mode;
    esp_wifi_get_mode(&mode);
    if(mode !=WIFI_MODE_STA)
    {
        esp_wifi_stop();
        esp_wifi_set_mode(WIFI_MODE_STA);

    }
    sta_connect_cnt = 0;
    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
    esp_wifi_start();
}

idf_component_register(SRCS "main.c" "wifi_manager.c"
                    INCLUDE_DIRS ".")

连接成功提示 (6488) main: wifi connect success

关闭路由器提示  I (71048) main: wifi connect dissuccess

完成-----------------------------------------------------------------------

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