Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Formタグでデータを渡して、Java Servletのコンソールに出力するサンプル
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/FormServlet")
public class FormServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* コンストラクタ.
*/
public FormServlet() {
super();
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//processRequest(request, response);
System.out.println("GETメソッドで呼び出されました");
String text1 = ""; // テキスト1格納用変数
String text2 = ""; // テキスト2格納用変数
// JSPの画面から値を取得
/*
指定のnameから値取得
*/
text1 = request.getParameter("text1");
text2 = request.getParameter("text2");
// 取得した値をコンソールに出力
System.out.println(text1);
System.out.println(text2);
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//processRequest(request, response);
System.out.println("POSTメソッドで呼び出されました");
String text1 = ""; // テキスト1格納用変数
String text2 = ""; // テキスト2格納用変数
// JSPの画面から値を取得
text1 = request.getParameter("text1");
text2 = request.getParameter("text2");
// 取得した値をコンソールに出力
System.out.println(text1);
System.out.println(text2);
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<!DOCTYPE html>
<html>
<head>
<title>JSP inputForm</title>
</head>
<body>
<p>インプットフォーム</p>
<p>値を入力してください</p>
<%-- GETメソッドでテキストを送信 --%>
<form action="./FormServlet">
<p>ここに値を入れてください:<input type="text" name="text1"></p>
<p>ここに値を入れてください:<input type="text" name="text2"></p>
<input type="submit" value="GETで送信">
</form>
<%-- POSTメソッドでテキストを送信 --%>
<form method="post" action="./FormServlet">
<p>ここに値を入れてください:<input type="text" name="text1"></p>
<p>ここに値を入れてください:<input type="text" name="text2"></p>
<input type="submit" value="POSTで送信">
</form>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.