54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
/*
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* 数据库连接工具函数接口实现
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*/
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#include"DBCUtils.h"
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bool getConnection(std::string& pwd, _ConnectionPtr& connection) {
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bool isPwdTrue = false;
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_bstr_t strConnect;
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if (!pwd.empty()) {//密码非空，使用SQL Server身份验证
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try {
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std::string con = "Provider=SQLOLEDB.1;Password=" + pwd + "; Persist Security Info = True; User ID = sa; Initial Catalog = stuAdminSystem; Data Source = LAPTOP-4DMOD6O5";
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strConnect = con.c_str();
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connection->Open(strConnect, "", "", NULL);
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isPwdTrue = true;//密码正确，连接成功
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wprintf(L"登录成功！\n");
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return true;
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}
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catch (_com_error& err) {
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wprintf(L"The application throws the error: %s\n", (wchar_t*)err.ErrorMessage());
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wprintf(L"Description = %s\n", (wchar_t*)err.Description());
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}
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if (!isPwdTrue) {//密码错误，连接失败（打开连接失败，跳出try块执行）
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wprintf(L"密码错误！\n");
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return false;
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}
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}
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else {//密码为空，使用Windows 身份验证
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try {
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strConnect = "Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=stuAdminSystem;Data Source=LAPTOP-4DMOD6O5";
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connection->Open(strConnect, "", "", NULL);
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isPwdTrue = true;//验证成功，连接成功
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wprintf(L"登录成功！\n");
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return true;
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}
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catch (_com_error& err) {
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wprintf(L"The application throws the error: %s\n", (wchar_t*)err.ErrorMessage());
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wprintf(L"Description = %s\n", (wchar_t*)err.Description());
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}
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if (!isPwdTrue) {//验证失败，连接失败（打开连接失败，跳出try块执行）
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wprintf(L"验证失败！\n");
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return false;
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}
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}
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return false;
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}
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void getSqlType(std::string& sql, std::string& comType) {
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size_t len = sql.length();
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for (size_t i = 0; i < len; i++) {//获取SQL语句的类别
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if (sql[i] != ' ')
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comType += isupper(sql[i]) ? (sql[i] - 32) : sql[i];
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else return;
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}
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} |