MySql Connector/C++8结果集处理Demo

#include <iostream>
#include <exception>

#include <mysqlx/xdevapi.h>

using std::cout;
using std::endl;

int main(void)
try
{
	//uri: mysqlx://user:password@host:port/db_name
	const char *from_uri = "mysqlx://root:mysql@localhost:33060/D_COMPANY?ssl-mode=disabled";
	mysqlx::Session sess(from_uri);

	mysqlx::SqlResult rset = sess.sql("SELECT * FROM T_DEPT").execute();

	mysqlx::Row row;
	while (rset.hasData()) { //判断结果集中是否有数据
		row = rset.fetchOne(); //从结果集中提取一行数据，同时此函数会自动指向下一行数据
		if (row.isNull()) { //判断此行是否为空
			cout << "row is null." << endl;
			break;
		}

		//提取行中每一列的数据，注意下标从 0 开始
		//使用C++中的类的强制转换
		cout << "  deptno: " << int(row.get(0)) << endl;
		cout << "deptname: " << std::string(row.get(1)) << endl;
		cout << " deptloc: " << std::string(row.get(2)) << endl;

#ifdef OTHER
		cout << "  deptno: " << row.get(0).get<int>() << endl;
		cout << "deptname: " << row.get(1).get<std::string>() << endl;
		cout << " deptloc: " << row.get(2).get<std::string>() << endl;
#endif
	}

	sess.close();
	cout << "Done!" << endl;
}
catch (mysqlx::Error &err)
{
	cout << "ERROR : " << err << endl;
	return -1;
}