diff --git "a/13 \345\274\240\345\276\267\345\272\267/20230522 \344\275\234\344\270\232.md" "b/13 \345\274\240\345\276\267\345\272\267/20230522 \344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..4320faca1186c0870fd0753025894db00f7811d3
--- /dev/null
+++ "b/13 \345\274\240\345\276\267\345\272\267/20230522 \344\275\234\344\270\232.md"	
@@ -0,0 +1,37 @@
+```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="insert into student values (4,'唐','女')";
+        int i = stmt.executeUpdate(sql);
+        if (i>0){
+            System.out.println("成功添加");
+        }else{
+            System.out.println("失败");
+        } 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);
+    }
+}
+```
+