04后端笔记_2017-07-101
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2022-08-08
19:43:11
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1、JDBC 操作
public class JdbcTest extends HttpServlet{
private String driver = "com.mysql.jdbc.Driver";
private String url =
"jdbc:mysql://127.0.0.1:3306/bookdb?useUnicode=true&c
haracterEncoding=UTF-8";
private String sql = "select * from user";
@Override
protected void doGet(HttpServletRequest req,
HttpServletResponse resp) throws ServletException,
IOException {
Connection con = null;
ResultSet result = null;
resp.setContentType("text/html;charset=UTF-8");
PrintWriter out = resp.getWriter();
try {
//1、注册
Class.forName(driver);
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