WEB/JSP
JDBC&JSP 실습
다콩잉
2022. 10. 7. 17:26
ex1.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.sql.*"%>
<%@ page import="javax.sql.*"%>
<%@ page import="javax.naming.*"%>
<%@ page import="java.util.ArrayList" %>
<%
Connection conn = null;
String sql = "SELECT * FROM STUDENT2";
ArrayList<String[]> arr = new ArrayList<String[]>();
try {
Context init = new InitialContext();
DataSource ds = (DataSource) init.lookup("java:comp/env/jdbc/OracleDB");
conn = ds.getConnection();
PreparedStatement pstmt = conn.prepareStatement(sql);
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
String[] str = new String[2];
str[0] = rs.getString(1);
str[1] = rs.getString(2);
arr.add(str);
}
rs.close();
} catch (Exception e) {
out.println("<h3>)데이터 가져오기 실패</h3>");
e.printStackTrace();
}
%>
<!DOCTYPE html>
<html>
<head>
<title>JSP - Hello World</title>
</head>
<body>
<h1>
이벤트 등록
</h1>
<hr>
<form action="ex2.jsp">
등록 이름: <input type="text" name="name"/>
email 주소: <input type="email" name="email"/>
<input type="submit" value="등록">
</form>
<hr>
<h5># 등록 목록</h5>
<%
for (int i = 0; i < arr.size(); i++) {
%>
<h5><%=i+1%>: <%=arr.get(i)[0]%>, <%=arr.get(i)[1]%></h5>
<%
}
%>
<br/>
</body>
</html>
ex2.jsp
<%--
Created by IntelliJ IDEA.
User: UserK
Date: 2022-10-07
Time: 오후 3:19
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.sql.*" %>
<%@ page import="javax.sql.*" %>
<%@ page import="javax.naming.*" %>
<%@ page import="java.util.ArrayList" %>
<%
Connection conn=null;
String sql = "insert into student2 (name, email) values(?, ?)";
request.setCharacterEncoding("UTF-8");
try{
Context init = new InitialContext();
DataSource ds=(DataSource)init.lookup("java:comp/env/jdbc/OracleDB");
conn=ds.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql);
String name = request.getParameter("name");
out.println(name);
//name = new String(name.getBytes("ISO-8859-1"), "UTF-8");
stmt.setString(1, name);
stmt.setString(2, request.getParameter("email"));
if(stmt.executeUpdate()!=0){
response.sendRedirect("ex1.jsp");
}
}catch(Exception e){
out.println("<h3>레코드 등록에 실패하였습니다.</h3>");
e.printStackTrace();
}
%>
<html>
<head>
<title>Title</title>
</head>
<body>
</body>
</html>728x90