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 {
find();
}
private static void find() throws SQLException {
Connection conn = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// 创建连接
conn = JdbcUtils.getConnection();
String sql = " select id,name ,book from student where id = ?";
ps = conn.prepareStatement(sql);
// 代替 占位符
ps.setInt(1, 2);
rs = ps.executeQuery();
while (rs.next()) {
System.out.println(rs.getInt("id")+"\t"+rs.getString("name") + "\t"
+ rs.getString("book"));
}
} finally {
JdbcUtils.release(rs, ps, conn);
}
}
}
客户端：
后台：
