import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
//预处理方式
public class preperSTest {
public static void main(String[] args) throws SQLException {
update("双鱼座", "《菜根谭》");
}
private static void update (String name, String book) throws SQLException {
Connection conn = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// 创建连接
conn = JdbcUtils.getConnection();
String sql = " update student set name = ?,book = ? where id = 2";
ps = conn.prepareStatement(sql);
// 代替 占位符
ps.setString(1, name);
ps.setString(2, book);
int i = ps.executeUpdate();
System.out.println(i);
} finally {
JdbcUtils.release(rs, ps, conn);
}
}
}
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