add new code to support sqlite3 and U8g2

This commit is contained in:
JasonYANG170 2024-04-19 16:10:25 +08:00
parent 462946a721
commit 51a9993723
3 changed files with 1551 additions and 226 deletions

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@ -22,4 +22,12 @@ lib_deps =
siara-cc/Sqlite3Esp32 @ ~2.4 siara-cc/Sqlite3Esp32 @ ~2.4
# The exact version # The exact version
siara-cc/Sqlite3Esp32 @ 2.4 siara-cc/Sqlite3Esp32 @ 2.4
olikraus/U8g2 @ ^2.35.17
# Accept only backwards compatible bug fixes
# (any version with the same major and minor versions, and an equal or greater patch version)
olikraus/U8g2 @ ~2.35.17
# The exact version
olikraus/U8g2 @ 2.35.17

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@ -1,225 +0,0 @@
/*
This example opens Sqlite3 databases from SD Card and
retrieves data from them.
Before running please copy following files to SD Card:
examples/sqlite3_sdmmc/data/mdr512.db
examples/sqlite3_sdmmc/data/census2000names.db
Connections:
* SD Card | ESP32
* DAT2 -
* DAT3 SS (D5)
* CMD MOSI (D23)
* VSS GND
* VDD 3.3V
* CLK SCK (D18)
* DAT0 MISO (D19)
* DAT1 -
*/
#include <stdio.h>
#include <stdlib.h>
#include <sqlite3.h>
#include <SPI.h>
#include <FS.h>
#include <iostream>
#include <sstream>
#include <string>
#include <sstream>
#include <vector>
#include "SD.h"
//配置数据结构
using namespace std;
int OutPutTimes;
String OutPutString = "";
int keySize;
struct key {
String user;
String password;
};
const char* data = "Callback function called";
static int callback(void *data, int argc, char **argv, char **azColName){
int i;
Serial.printf("%s: ", (const char*)data);
OutPutTimes++;
Serial.println("----------------------");
for (i = 0; i<argc; i++){
// 初始化一个空的字符串
// 使用sprintf将输出格式化
char buffer[50];
sprintf(buffer, "%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
OutPutString+=buffer;
// 将格式化后的字符串连接到OutPutString
// OutPutString = const_cast<char *>( "%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
// Serial.printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
// 现在OutPutString包含了格式化后的字符串
}
Serial.printf("\n");
return 0;
}
int openDb(const char *filename, sqlite3 **db) {
int rc = sqlite3_open(filename, db);
if (rc) {
Serial.printf("Can't open database: %s\n", sqlite3_errmsg(*db));
return rc;
} else {
Serial.printf("Opened database successfully\n");
}
return rc;
}
char *zErrMsg = 0;
int db_exec(sqlite3 *db, const char *sql) {
Serial.println(sql);
long start = micros();
int rc = sqlite3_exec(db, sql, callback, (void*)data, &zErrMsg);
if (rc != SQLITE_OK) {
Serial.printf("SQL error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
} else {
Serial.printf("Operation done successfully\n");
}
Serial.print(F("Time taken:"));
Serial.println(micros()-start);
return rc;
}
void removeDuplicates(String arr[], int& n) {//此函数提供方法删除数组内重复的值
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n;) {
if (arr[i] == arr[j]) {
for (int k = j; k < n - 1; k++) {
arr[k] = arr[k + 1];
}
n--;
} else {
j++;
}
}
}
}
void addSiteDataToArr() {//此函数提供方法使其全部网站保存在数组中,界面分类用
sqlite3 *db1;
char *zErrMsg = 0;
int rc;
SPI.begin();
SD.begin();
sqlite3_initialize();
// Open database 1
if (openDb("/sd/key.db", &db1))
return;
rc = db_exec(db1, "SELECT * FROM site");
if (rc != SQLITE_OK) {
sqlite3_close(db1);
return;
}
Serial.println(OutPutString);
Serial.println("All Have Data Times:");
const int SiteSize = OutPutTimes;
String Site[SiteSize];//根据数据长度确认数组长度
// std::string OutPutString = "id = 1\nsite = example_site_2\nuser = user1\npassword = password1\nid = 2\nsite = example_site_1\nuser = user3\npassword = password1\nid = 3\nsite = example.com\nuser = john_doe\npassword = password123";
String inputString = OutPutString; // 输入的字符串
int startIndex = 0;
int endIndex = 0;
for(int i=0;i<OutPutTimes;i++) {
startIndex = inputString.indexOf("=", endIndex);
if (startIndex == -1) {
break; // 如果没有找到等号,退出循环
}
endIndex = inputString.indexOf("\n", startIndex); // 查找换行符的位置
if (endIndex == -1) {
endIndex = inputString.length(); // 如果没有找到换行符,则使用字符串的末尾作为终点
}
String value = inputString.substring(startIndex + 2, endIndex); // 提取等号后面的内容,包括空格
Serial.println(value);
Site[i] = value;
}
removeDuplicates(Site, OutPutTimes);
Serial.println("--------分割-----------");
for (int i = 0; i < OutPutTimes; i++) {
Serial.println(Site[i]);
}
\
// OutPutString.
//
// char *token;
//
// token = strtok( OutPutString, "\n");
// for (int i = 0; i < OutPutTimes; i++) {
// char *value = strchr(token, '=');
//
// if (value != NULL) {
// value++; // 移动到等号后面的值
// Site[i] = value;
// }
//
// token = strtok(NULL, "\n");
// }
Serial.println(OutPutTimes);
//初始化
OutPutString = "";
OutPutTimes = 0;
sqlite3_close(db1);
}
void setup() {
Serial.begin(115200);
addSiteDataToArr();
sqlite3 *db1;
char *zErrMsg = 0;
int rc;
SPI.begin();
SD.begin();
sqlite3_initialize();
// Open database 1
if (openDb("/sd/key.db", &db1))
return;
rc = db_exec(db1, "SELECT * FROM key;");
if (rc != SQLITE_OK) {
sqlite3_close(db1);
return;
}
Serial.println(OutPutString);
OutPutString="";
Serial.println("All Have Data Times2:");
Serial.println(OutPutTimes);
sqlite3_close(db1);
}
void loop() {
}

1542
src/main.ino Normal file

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