diff --git "a/12 \350\213\217\344\273\244\351\271\217/20230522_12 \350\213\217\344\273\244\351\271\217 idea\345\220\257\345\212\250tomcat.md" "b/12 \350\213\217\344\273\244\351\271\217/20230522_12 \350\213\217\344\273\244\351\271\217 idea\345\220\257\345\212\250tomcat.md"
new file mode 100644
index 0000000000000000000000000000000000000000..2d148c879265555c3600d7460667fec9c675c632
--- /dev/null
+++ "b/12 \350\213\217\344\273\244\351\271\217/20230522_12 \350\213\217\344\273\244\351\271\217 idea\345\220\257\345\212\250tomcat.md"	
@@ -0,0 +1,40 @@
+```java
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.sql.*;
+
+
+public class Student extends HttpServlet {
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        resp.setContentType("text/html;charset=utf-8");
+        resp.setCharacterEncoding("utf-8");
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+            Connection conn = DriverManager.getConnection("jdbc://mysql/localhost/3306/student_db?useSSL=false&useUnicode=true&characterEncoding=utf8", "root", "root");
+            String sql = "select * from student";
+            PreparedStatement pst = conn.prepareStatement(sql);
+            ResultSet rs = pst.executeQuery();
+            while (rs.next()){
+                String id = rs.getString("id");
+                String name = rs.getString("name");
+                String sex = rs.getString("sex");
+                resp.getWriter().write("id:"+id+",name:"+name+",sex:"+sex);
+            }
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        } catch (ClassNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        super.doPost(req, resp);
+    }
+}
+```
+