From 0b46c79b2245e5d0f0236ef65137a7bba8673526 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=80=9C=E8=82=96=E9=92=9F=E5=87=AF=E9=9F=A9=E2=80=9D?=
<“3175644391@qq.com”>
Date: Fri, 26 May 2023 13:29:22 +0800
Subject: [PATCH] =?UTF-8?q?=E7=AC=AC=E5=9B=9B=E6=AC=A1=E4=BD=9C=E4=B8=9A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
---
...44\357\274\214\346\237\245\350\257\242.md" | 113 ++++++++++++++++++
1 file changed, 113 insertions(+)
create mode 100644 "22 \350\202\226\351\222\237\345\207\257\351\237\251/20230526 tomcat \345\210\240\351\231\244\357\274\214\346\237\245\350\257\242.md"
diff --git "a/22 \350\202\226\351\222\237\345\207\257\351\237\251/20230526 tomcat \345\210\240\351\231\244\357\274\214\346\237\245\350\257\242.md" "b/22 \350\202\226\351\222\237\345\207\257\351\237\251/20230526 tomcat \345\210\240\351\231\244\357\274\214\346\237\245\350\257\242.md"
new file mode 100644
index 0000000..a8bb757
--- /dev/null
+++ "b/22 \350\202\226\351\222\237\345\207\257\351\237\251/20230526 tomcat \345\210\240\351\231\244\357\274\214\346\237\245\350\257\242.md"
@@ -0,0 +1,113 @@
+~~~ java
+package Servlet;
+
+import dubil.DBUtli;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+@WebServlet("/SelectServlet")
+public class SelectServlet extends HttpServlet {
+ @Override
+ protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+ resp.setContentType("text/html;charset=utf-8");
+ req.setCharacterEncoding("utf-8");
+ String username = req.getParameter("name");
+ String sql = "select * from student where name like ?";
+ ResultSet rs = DBUtli.query(sql,"%" + username + "%");
+ PrintWriter out = resp.getWriter();
+ try {
+ if (!rs.isBeforeFirst()){
+ out.write("查询失败");
+ }else {
+ while(rs.next()){
+ int id = rs.getInt("id");
+ String name = rs.getString("name");
+ String sex = rs.getString("sex");
+ out.write("编号:"+id+"姓名:"+name+"性别:"+sex);
+ }
+ }
+ } catch (SQLException e) {
+ e.printStackTrace();
+ }
+ }
+
+ @Override
+ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+ doGet(request,response);
+ }
+}
+
+~~~
+
+~~~ html
+
+
+
+
+ Title
+
+
+
+
+
+~~~
+
+~~~ java
+package servlet;
+
+import javax.servlet.*;
+import javax.servlet.http.*;
+import javax.servlet.annotation.*;
+import java.io.IOException;
+import java.sql.SQLException;
+
+@WebServlet(name = "DeleteServlet", value = "/DeleteServlet")
+public class DeleteServlet extends HttpServlet {
+ @Override
+ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+ request.setCharacterEncoding("utf-8");
+ response.setContentType("text/html;charset=utf-8");
+ String id=request.getParameter("id");
+ String sql="delete from student where id=?";
+ try {
+ int i = DBUtil.update(sql, id);
+ if(i>0){
+ response.getWriter().write("删除成功");
+ }else {
+ response.getWriter().write("删除失败");
+ }
+ } catch (SQLException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ @Override
+ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+ doGet(request,response);
+ }
+}
+
+
+
+
+ 删除学生
+
+
+ 删除学生
+
+
+
+~~~
+
--
Gitee