c++ 调用 sqlcipher
2024-10-06 07:12:55
#include <iostream>
#include <string.h>
#include "sqlite3.h" using namespace std; static int callback(void *notUsed, int argc, char **argv, char **azColName)
{
for (int i = ; i < argc; i++)
cout << azColName[i] << ":" << (argv[i] ? argv[i] : "NULL") << "\t";
cout << endl;
return ;
} void dbTest()
{
#pragma region 打开或创建数据库 /*打开或创建的数据库实例句柄*/
sqlite3 *db = NULL; /*数据库文件的路径及文件名*/
const char* path = "./sqlcipher.db";
/*根据文件路径打开数据库连接。如果数据库不存在,则创建。数据库文件的路径必须以C字符串传入*/
int result = sqlite3_open_v2(path, &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_NOMUTEX | SQLITE_OPEN_SHAREDCACHE, NULL); if (result == SQLITE_OK)
cout << "打开或创建数据库成功" << endl;
else
cout << "打开或创建数据库失败" << endl; sqlite3_close(db); #pragma endregion #pragma region 指定数据库密码 const char* pwd = "abcdefg";
result = sqlite3_open(path, &db); if (result == SQLITE_OK)
cout << "打开数据库成功" << endl;
else
cout << "打开数据库失败" << endl; result = sqlite3_key(db, pwd, strnlen(pwd, ));
cout << "指定数据库密码:" << result << endl; #pragma endregion #pragma region 执行SQL语句 char* errmsg;
result = sqlite3_exec(db, "CREATE TABLE [t1](id integer PRIMARY KEY AUTOINCREMENT UNIQUE, name varchar);", NULL, NULL, &errmsg);
if (result == SQLITE_OK)
{
cout << "SQL 语句执行成功" << endl;
}
else
{
cout << "SQL 语句执行时发生错误:" << sqlite3_errmsg(db) << endl;
} result = sqlite3_exec(db, "INSERT INTO t1(name) VALUES('张三');", NULL, NULL, &errmsg);
if (result == SQLITE_OK)
{
cout << "SQL 语句执行成功" << endl;
}
else
{
cout << "SQL 语句执行时发生错误:" << sqlite3_errmsg(db) << endl;
} result = sqlite3_exec(db, "SELECT * FROM t1;", callback, NULL, &errmsg);
if (result == SQLITE_OK)
{
cout << "SQL 语句执行成功" << endl;
}
else
{
cout << "SQL 语句执行时发生错误:" << sqlite3_errmsg(db) << endl;
} #pragma endregion sqlite3_close(db);
} int main(int argc, char *argv[])
{
dbTest(); char sz[] = "End !";
cout << sz << endl;
return ;
}
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