1 <%@page import="java.text.SimpleDateFormat"%>
2 <%@page import="java.sql.*"%>
3 <%@ page language="java" contentType="text/html; charset=UTF-8"
4 pageEncoding="UTF-8"%>
5 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
6 <html>
7 <head>
8 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
9 <title>学生信息</title>
10 </head>
11 <body>
12 学生信息列表
13 <br>
14 <%
15 try
16 {
17 //连接数据库
18
19 //1)、加载驱动
20 Class.forName("oracle.jdbc.driver.OracleDriver");
21 String strUrl="jdbc:oracle:thin:@localhost:1521:ORCL";
22 Connection conn=DriverManager.getConnection(strUrl, "test", "test");
23 //2)、得到连接
24 //Connection 连接 DriverManager是一个结果集
25 // Connection conn=DriverManager.getConnection("strURL", "test", "test");
26 //读取
27 //Statement 声明 是java的一个重要接口
28 Statement st=conn.createStatement();
29 //RescultSet 遍历 executeQuery() 是数据库查询Select的一个方法
30 ResultSet rs=st.executeQuery("select t.*, t.rowid from T_STUDENT t");
31 //输出结果集
32 if(rs!=null)//如果遍历的认识这个数不为空
33 {
34 SimpleDateFormat sdf=new SimpleDateFormat("MM/dd/yyyy");
35 while(rs.next())//当有下一个数时，输出从rs里得到的“sno”的数据
36 {
37
38
39
40 out.print("sno"+rs.getString("sno")+" ");//从rs结果集中得到"sno"的数据
41 out.print("sname"+rs.getString("sname")+" ");
42 out.print("ssex"+rs.getString("ssex")+" ");
43 try
44 {
45 out.print("sbirthday"+(rs.getDate("sbirthday")==null?"":sdf.format(rs.getDate("sbirthday")))+" ");
46 }catch(Exception e)
47 {
48 e.printStackTrace();
49 }
50 out.print("sclass"+rs.getString("class")+"[修改]<a href=‘Deletet_student?sno="+rs.getString("sno")+"‘>[删除]</a><br>");
51 }
52 }
53 //释放资源
54 conn.close();
55 st.close();
56 rs.close();
57 }
58 catch(Exception e)
59 {
60 e.printStackTrace();
61 }
62
63 %>
64 添加学生信息
65 <form action="savet_student" method="post">
66 学号<input type="text" name="sno"><br>
67 姓名<input type="text" name="sname"><br>
68 性别<input type="text" name="ssex"><br>
69 生日<input type="text" name="sbirthday"><br>
70 班级<input type="text" name="sclass"><br>
71 <input type="submit" value="保存">
72 </form>
73 </body>
74 </html>
1 package com.haiqi.web;
2
3 import java.io.IOException;
4 import java.sql.*;
5 import java.text.SimpleDateFormat;
6
7 import javax.servlet.ServletException;
8 import javax.servlet.http.HttpServlet;
9 import javax.servlet.http.HttpServletRequest;
10 import javax.servlet.http.HttpServletResponse;
11
12 public class savet_student extends HttpServlet {
13 private static final long serialVersionUID = 1L;
14
15 public savet_student() {
16 super();
17 // TODO Auto-generated constructor stub
18 }
19
20 protected void doGet(HttpServletRequest request, HttpServletResponse response)
21 throws ServletException, IOException {
22 // 处理保存数据的请求
23
24 // 1)接收参数
25 String sno = request.getParameter("sno");
26 String sname = request.getParameter("sname");
27 String ssex = request.getParameter("ssex");
28 String sbirthday = request.getParameter("sbirthday");
29 String sclass = request.getParameter("class");
30 // 2)验证
31
32 if (sno != null && sno.trim().length() != 0 && sname != null && sname.trim().length() != 0)
33
34 {
35 try {
36 Class.forName("oracle.jdbc.driver.OracleDriver");
37 String strUrl = "jdbc:oracle:thin:@localhost:1521:ORCL";
38
39 Connection conn = DriverManager.getConnection(strUrl, "test", "test");
40
41 // 2)、得到连接
42 // 3)保存
43 // 读取
44 PreparedStatement pst = conn.prepareStatement("insert into t_student(sno,sname,ssex,sbirthday,class)" + "values(?,?,?,?,?)");
45 //String转成Date
46 //关于日期格式的类
47 //可以进行日期转换
48 SimpleDateFormat sdf=new SimpleDateFormat("yyyy/MM/dd");
49 java.util.Date bir=sdf.parse(sbirthday);
50 //使用long型的时间构造sql.Date
51 Date sqlbir=new Date(bir.getTime());
52 pst.setString(1, sno);
53 pst.setString(2, sname);
54 pst.setString(3, ssex);
55 pst.setDate(4, sqlbir);
56 pst.setString(5, sclass);
57 pst.executeUpdate();
58
59 pst.close();
60 conn.close();
61 // 4)跳转页面
62 response.setHeader("refresh", "3;URL=index.jsp");
63 response.getWriter().write("请正确提交数据");
64
65 }
66 catch (Exception e) {
67 e.printStackTrace();
68 }
69 }
70
71 else {
72 response.setHeader("reflush", "3;URL=index.jsp");
73 response.getWriter().write("请正确提交数据");
74 }
75
76 //response.getWriter().append("Served at: ").append(request.getContextPath());
77 }
78
79 protected void doPost(HttpServletRequest request, HttpServletResponse response)
80 throws ServletException, IOException {
81
82 doGet(request, response);
83 }
84
85 }
1 package com.haiqi.web;
2
3 import java.io.IOException;
4 import javax.servlet.Filter;
5 import javax.servlet.FilterChain;
6 import javax.servlet.FilterConfig;
7 import javax.servlet.ServletException;
8 import javax.servlet.ServletRequest;
9 import javax.servlet.ServletResponse;
10
11
12 public class myfilter implements Filter {
13
14 public myfilter() {
15 // TODO Auto-generated constructor stub
16 }
17
18
19 public void destroy() {
20 // TODO Auto-generated method stub
21 }
22
23
24 public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
25 request.setCharacterEncoding("UTF-8");
26 response.setContentType("text/html");
27 response.setCharacterEncoding("UTF-8");
28 chain.doFilter(request, response);
29 }
30
31
32 public void init(FilterConfig fConfig) throws ServletException {
33 // TODO Auto-generated method stub
34 }
35
36 }
时间： 2024-10-10 03:02:04