質問編集履歴
2
分かりづらいのを修正
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```sqlでデータベースを作りそれをjavaを使って
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```sqlでデータベースを作りそれをjavaを使ってweb上で検索するというシステムを作っています。
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```
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コード
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// パッケージの指定
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package movie;
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import java.util.*;
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import java.sql.*;
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public class Model {
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private String q;
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private ArrayList<TitleListResult> results;
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private Connection conn = null;
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private PreparedStatement stmt = null;
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private ResultSet resultSet = null;
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public void execute(){
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System.out.println("Hello");
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try {
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conn = ConnectUtilMy.connectDatabase();
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TitleListResult result = new TitleListResult();
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// 住所の検索
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PreparedStatement pstmt = conn.prepareStatement(
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"SELECT title_name,years_publication,performance_income,production_cost,public_evaluation,screening_time,genre_name,original_name,cast_name,directed_name " +
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"FROM movie inner join original_list on movie.original_number=original_list.original_number "+
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"inner join genre_list on movie.genre_number=genre_list.genre_number "+
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"inner join directed_list on movie.directed_number=directed_list.directed_number "+
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"inner join cast_list on movie.cast_number=cast_list.cast_number where title_name like ? or directed_name like ?");
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pstmt.setString(1, q + "%");
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pstmt.setMaxRows(50);
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ResultSet rs = pstmt.executeQuery();
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// 検索結果の取得
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results = new ArrayList<String[]>();
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while (rs.next()) {
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String[] result = new String[10];
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result[0] = rs.getString("movie_number");
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result[1] = rs.getString("years_publication");
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result[2] = rs.getString("performance_income");
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result[3] = rs.getString("production_cost");
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result[4] = rs.getString("public_evaluation");
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result[5] = rs.getString("screening_time");
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result[6] = rs.getString("genre_number");
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result[7] = rs.getString("directed_number");
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result[8] = rs.getString("original_number");
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result[9] = rs.getString("cast_number");
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results.add(result);
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}
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// 切断
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rs.close();
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pstmt.close();
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conn.close();
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}
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catch (Exception ex) {
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ex.printStackTrace();
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}
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}
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public ArrayList<TitleListResult> getResults() {
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return results;
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}
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public void setQ(String q) {
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this.q = q;
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}
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//この下が追加して書いたところです。
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public void setC(String c) {
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this.c = c;
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}
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}
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```
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```そしてこちらがControlle.javaです
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// パッケージの指定
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package movie;
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import java.util.*;
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import java.io.*;
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import javax.servlet.*;
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import javax.servlet.http.*;
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import javax.servlet.annotation.*;
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// サーブレットの名前（ここでは，Controllerというクラス名）を指定する
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@WebServlet(name = "Controller", urlPatterns = {"/Controller"})
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public class Controller extends HttpServlet {
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protected void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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// view.jspで入力された検索キーkeyNumの値を取得する
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String q = request.getParameter("keyNum");
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q = new String(q.getBytes("8859_1"), "Windows-31J");
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if (q != null) {
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// Modelクラスのインスタンスを生成する
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Model model = new Model();
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// 検索キーを設定する
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model.setQ(q);
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// 検索を実行する
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model.execute();
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// 検索結果を取得する
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ArrayList<String[]> results = model.getResults();
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// view.jspに検索結果を渡す
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request.setAttribute("results", results);
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}
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// view.jspに処理を転送する
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getServletContext().getRequestDispatcher("/view.jsp").forward(request, response);
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}
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}
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コード
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sqlでデータベースを作りそれをjavaを使ってhtml上で検索するというシステムを作っています。
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```sqlでデータベースを作りそれをjavaを使ってhtml上で検索するというシステムを作っています。
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@@ -75,247 +321,3 @@
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一応すでに書いてある部分をマネしてみて追加してみたのですがこれ以外に何を書き込めば
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メソッドを作ったことになり呼び出せるのでしょうか？
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こちらがModel.javaです
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// パッケージの指定
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package movie;
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import java.util.*;
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import java.sql.*;
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public class Model {
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private String q;
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private ArrayList<TitleListResult> results;
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private Connection conn = null;
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private PreparedStatement stmt = null;
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private ResultSet resultSet = null;
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public void execute(){
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System.out.println("Hello");
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try {
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conn = ConnectUtilMy.connectDatabase();
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TitleListResult result = new TitleListResult();
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// 住所の検索
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PreparedStatement pstmt = conn.prepareStatement(
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"SELECT title_name,years_publication,performance_income,production_cost,public_evaluation,screening_time,genre_name,original_name,cast_name,directed_name " +
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"FROM movie inner join original_list on movie.original_number=original_list.original_number "+
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"inner join genre_list on movie.genre_number=genre_list.genre_number "+
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"inner join directed_list on movie.directed_number=directed_list.directed_number "+
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"inner join cast_list on movie.cast_number=cast_list.cast_number where title_name like ? or directed_name like ?");
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pstmt.setString(1, q + "%");
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pstmt.setMaxRows(50);
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ResultSet rs = pstmt.executeQuery();
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// 検索結果の取得
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results = new ArrayList<String[]>();
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while (rs.next()) {
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String[] result = new String[10];
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result[0] = rs.getString("movie_number");
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result[1] = rs.getString("years_publication");
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result[2] = rs.getString("performance_income");
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result[3] = rs.getString("production_cost");
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result[4] = rs.getString("public_evaluation");
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result[5] = rs.getString("screening_time");
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result[6] = rs.getString("genre_number");
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result[7] = rs.getString("directed_number");
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result[8] = rs.getString("original_number");
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result[9] = rs.getString("cast_number");
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results.add(result);
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}
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// 切断
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rs.close();
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pstmt.close();
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conn.close();
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}
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catch (Exception ex) {
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ex.printStackTrace();
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}
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}
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public ArrayList<TitleListResult> getResults() {
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return results;
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}
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public void setQ(String q) {
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this.q = q;
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}
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220
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-
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221
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//この下が追加して書いたところです。
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222
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-
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223
|
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public void setC(String c) {
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224
|
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225
|
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this.c = c;
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226
|
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227
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}
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228
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229
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}
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230
|
-
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231
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232
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-
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233
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234
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235
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-
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236
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237
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238
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239
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240
|
-
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241
|
-
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242
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-
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|
243
|
-
そしてこちらがControlle.javaです
|
|
244
|
-
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|
245
|
-
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|
246
|
-
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|
247
|
-
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248
|
-
|
|
249
|
-
// パッケージの指定
|
|
250
|
-
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|
251
|
-
package movie;
|
|
252
|
-
|
|
253
|
-
|
|
254
|
-
|
|
255
|
-
import java.util.*;
|
|
256
|
-
|
|
257
|
-
import java.io.*;
|
|
258
|
-
|
|
259
|
-
import javax.servlet.*;
|
|
260
|
-
|
|
261
|
-
import javax.servlet.http.*;
|
|
262
|
-
|
|
263
|
-
import javax.servlet.annotation.*;
|
|
264
|
-
|
|
265
|
-
|
|
266
|
-
|
|
267
|
-
// サーブレットの名前（ここでは，Controllerというクラス名）を指定する
|
|
268
|
-
|
|
269
|
-
@WebServlet(name = "Controller", urlPatterns = {"/Controller"})
|
|
270
|
-
|
|
271
|
-
public class Controller extends HttpServlet {
|
|
272
|
-
|
|
273
|
-
protected void doPost(HttpServletRequest request, HttpServletResponse response)
|
|
274
|
-
|
|
275
|
-
throws ServletException, IOException {
|
|
276
|
-
|
|
277
|
-
|
|
278
|
-
|
|
279
|
-
// view.jspで入力された検索キーkeyNumの値を取得する
|
|
280
|
-
|
|
281
|
-
String q = request.getParameter("keyNum");
|
|
282
|
-
|
|
283
|
-
q = new String(q.getBytes("8859_1"), "Windows-31J");
|
|
284
|
-
|
|
285
|
-
|
|
286
|
-
|
|
287
|
-
if (q != null) {
|
|
288
|
-
|
|
289
|
-
// Modelクラスのインスタンスを生成する
|
|
290
|
-
|
|
291
|
-
Model model = new Model();
|
|
292
|
-
|
|
293
|
-
// 検索キーを設定する
|
|
294
|
-
|
|
295
|
-
model.setQ(q);
|
|
296
|
-
|
|
297
|
-
|
|
298
|
-
|
|
299
|
-
// 検索を実行する
|
|
300
|
-
|
|
301
|
-
model.execute();
|
|
302
|
-
|
|
303
|
-
// 検索結果を取得する
|
|
304
|
-
|
|
305
|
-
ArrayList<String[]> results = model.getResults();
|
|
306
|
-
|
|
307
|
-
// view.jspに検索結果を渡す
|
|
308
|
-
|
|
309
|
-
request.setAttribute("results", results);
|
|
310
|
-
|
|
311
|
-
}
|
|
312
|
-
|
|
313
|
-
|
|
314
|
-
|
|
315
|
-
// view.jspに処理を転送する
|
|
316
|
-
|
|
317
|
-
getServletContext().getRequestDispatcher("/view.jsp").forward(request, response);
|
|
318
|
-
|
|
319
|
-
}
|
|
320
|
-
|
|
321
|
-
}
|