質問編集履歴
1
サーブレットのコードを追加しました。
test
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File without changes
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test
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@@ -18,33 +18,139 @@
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```java
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package xxxx;
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```xmlコード
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<Context reloadable="true">
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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 java.sql.*;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.servlet.ServletException;
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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.servlet.annotation.WebServlet;
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@WebServlet(urlPatterns= {"/xxxx/hello2"})
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public class Hello2 extends HttpServlet {
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public void doGet(HttpServletRequest request, HttpServletResponse response)
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throws IOException, ServletException{
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response.setContentType("text/html; charset=UTF-8");
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PrintWriter out = response.getWriter();
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out.println("<html>");
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out.println("<head>");
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out.println("<title>データベーステスト</title>");
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out.println("</head>");
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out.println("<body>");
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out.println("<p>");
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Connection conn = null;
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String url = "jdbc:mysql://[サーバーのアドレス]/test";
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String user = "***";
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String password = "***";
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try {
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Class.forName("com.mysql.jdbc.Driver").newInstance();
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out.println("ドライバのロードに成功しました<br>");
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conn = DriverManager.getConnection(url, user, password);
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out.println("データベース接続に成功しました<br>");
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}catch (ClassNotFoundException e){
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out.println("ClassNotFoundException:" + e.getMessage());
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}catch (SQLException e){
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out.println("SQLException:" + e.getMessage());
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}catch (Exception e){
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out.println("Exception:" + e.getMessage());
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}finally{
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try{
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if (conn != null){
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conn.close();
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out.println("データベース切断に成功しました");
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}else{
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out.println("コネクションがありません");
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}
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}catch (SQLException e){
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out.println("SQLException:" + e.getMessage());
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}
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}
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out.println("</p>");
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</
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out.println("</body>");
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out.println("</html>");
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}
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}
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48
154
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49
155
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```
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156
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