質問編集履歴
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サーブレットの内容
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@@ -1,79 +1,166 @@
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下記の通りにサーバーで実行したら文字化けが発生してしまいます。どなたか改善策があれば知恵をお貸しいただきたいです。
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■Servlet
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package
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package seisan;
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import java.io.IOException;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import javax.annotation.Resource;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.sql.DataSource;
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private int coursea_value;
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private int courseb_value;
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private int coursec_value;
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import ryoukin.java.ryoukin_beans;
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private int opcourseb_value;
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private int opcoursec_value;
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public ryoukin_beans(int coursea_value, int courseb_value, int coursec_value, int opcoursea_value,
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int opcourseb_value, int opcoursec_value) {
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super();
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this.coursea_value = coursea_value;
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this.courseb_value = courseb_value;
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this.coursec_value = coursec_value;
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this.opcoursea_value = opcoursea_value;
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this.opcourseb_value = opcourseb_value;
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this.opcoursec_value = opcoursec_value;
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}
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public int getCoursea_value() {
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return coursea_value;
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}
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public void setCoursea_value(int coursea_value) {
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this.coursea_value = coursea_value;
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}
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public int getCourseb_value() {
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return courseb_value;
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}
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public void setCourseb_value(int courseb_value) {
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this.courseb_value = courseb_value;
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}
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public int getCoursec_value() {
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return coursec_value;
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}
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public void setCoursec_value(int coursec_value) {
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this.coursec_value = coursec_value;
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}
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public int getOpcoursea_value() {
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return opcoursea_value;
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}
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public void setOpcoursea_value(int opcoursea_value) {
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this.opcoursea_value = opcoursea_value;
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}
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public int getOpcourseb_value() {
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return opcourseb_value;
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}
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public void setOpcourseb_value(int opcourseb_value) {
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this.opcourseb_value = opcourseb_value;
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}
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public int getOpcoursec_value() {
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return opcoursec_value;
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}
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public void setOpcoursec_value(int opcoursec_value) {
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this.opcoursec_value = opcoursec_value;
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}
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@Override
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public String toString() {
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return "ryoukin_beans [coursea_value=" + coursea_value + ", courseb_value=" + courseb_value + ", coursec_value="
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+ coursec_value + ", opcoursea_value=" + opcoursea_value + ", opcourseb_value=" + opcourseb_value
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+ ", opcoursec_value=" + opcoursec_value + "]";
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}
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public void set(int coursea) {
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// TODO 自動生成されたメソッド・スタブ
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}
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/**
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* Servlet implementation class SeisanServlet
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*/
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@WebServlet("/Seisan")
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public class SeisanServlet extends HttpServlet {
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private static final long serialVersionUID = 1L;
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// Define datasource/connection pool for Resource Injection
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@Resource(name="jdbc/WebApp")
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private DataSource dataSource;
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/**
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* @see HttpServlet#HttpServlet()
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*/
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public SeisanServlet() {
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super();
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// TODO Auto-generated constructor stub
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}
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/**
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* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
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*/
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@SuppressWarnings("unused")
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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// TODO Auto-generated method stub
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response.getWriter().append("Served at: ").append(request.getContextPath());
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//文字化け対策
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response.setContentType("text/html; charset=UTF-8");
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response.setContentType("text/html; charset=UTF-8");
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// 【料金情報を取得する】
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ryoukin_beans ryoukin = null;
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// ■DB接続
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Connection conn = null;
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PreparedStatement ps = null;
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ResultSet rs = null;
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// 接続情報
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String url="jdbc:mariadb://localhost:3306/webApp";
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String user="user02";
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String password="user02";
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try {
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// 接続処理
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conn = DriverManager.getConnection(url, user, password);
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// ■検索処理実行
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// SQL作成
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String sql = "SELECT coursea_value, courseb_value, coursec_value,opcoursea_value FROM seisan";
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System.out.println(sql);
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// SQL準備
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ps = conn.prepareStatement(sql);
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// SQL実行
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rs = ps.executeQuery();
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// データを読込み、JavaBeansに設定する
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ryoukin = new ryoukin_beans(0, 0, 0, 0, 0, 0);
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while(rs.next()) {
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// データ読込
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int coursea = rs.getInt("coursea_value");
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int courseb = rs.getInt("courseb_value");
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int coursec = rs.getInt("coursec_value");
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int opcoursea= rs.getInt("opcoursea_value");
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// JavaBeansにデータを設定
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ryoukin.set(coursea);
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ryoukin.set(courseb);
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ryoukin.set(coursec);
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ryoukin.set(opcoursea);
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}
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System.out.println(ryoukin);
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} catch(SQLException e) {
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// 接続失敗時の処理
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e.printStackTrace();
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} finally {
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try {
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// ■クローズ処理
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// 検索結果
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if(rs!=null) {
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rs.close();}
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// SQL文
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if(ps!=null) {
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ps.close();
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}
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// DB接続
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if(conn!=null) {
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conn.close();
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}
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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// 【表示値を設定する】
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request.setAttribute("ryoukin", ryoukin);
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// 【画面に遷移する】
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request.getRequestDispatcher("Newryoukin.jsp").forward(request, response);
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}
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/**
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* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
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*/
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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// TODO Auto-generated method stub
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doGet(request, response);
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// 【文字化け対応】
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response.setContentType("text/html; charset=UTF-8");
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response.setContentType("text/html; charset=UTF-8");
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// 【画面入力値を取得し、料金情報に設定する】
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// 画面入力値を取得
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String course = request.getParameter("coursea_value");
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int coursea = Integer.parseInt(course);
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// 取得できたか確認
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System.out.println("coursea="+course);}
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}
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77
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■JSP
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<%@page contentType="text/html; charset=UTF-8" %>
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<%@page import="java.sql.*"%>
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