したがって、このコードに関する次の問題です。方法を見つけていないようで、私の目が訓練されていません。これについて利用できるヘルプはありますか?
package packeging;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Calendar;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.amazonaws.HttpMethod;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.auth.BasicAWSCredentials;
import org.apache.http.*;
/**
* Servlet implementation class Hashtastic
*/
@WebServlet("/Hashtastic")
public class Hashtastic extends HttpServlet {
private static final long serialVersionUID = 1L;
private final static String BUCKET_NAME = "idlatestingbucket";//http://s3.amazonaws.com/THESISDB/techy.jpg
private final static String FILE_NAME = "TestPicture/wallpaper-264411.png";
private final static String ACCESS_KEY = "Fakepass";
private final static String SECRET_KEY = "Fakekey";
/**
* Default constructor.
*/
public Hashtastic() {
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
PrintWriter out = response.getWriter();
Calendar cal = Calendar.getInstance();
cal.add(Calendar.SECOND, 1000);
Date expDate = cal.getTime();
out.println(expDate+"\n");
BasicAWSCredentials cre = new BasicAWSCredentials(ACCESS_KEY, SECRET_KEY);
AmazonS3 s3 = new AmazonS3Client(cre);
String url = s3.generatePresignedUrl(BUCKET_NAME, FILE_NAME, expDate, HttpMethod.GET).toString();
out.println(url);
out.close();
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
}
この 500 エラーが発生しています。メソッドが欠落していると言われています。ライブラリにjarがあり、Eclipse用のプラグインがあります。
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Servlet execution threw an exception
root cause
java.lang.NoSuchMethodError: org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager: method <init>()V not found
com.amazonaws.http.ConnectionManagerFactory.createThreadSafeClientConnManager(ConnectionManagerFactory.java:26)
com.amazonaws.http.HttpClientFactory.createHttpClient(HttpClientFactory.java:83)
com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:116)
com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:60)
com.amazonaws.services.s3.AmazonS3Client.<init>(AmazonS3Client.java:291)
com.amazonaws.services.s3.AmazonS3Client.<init>(AmazonS3Client.java:273)
packeging.Hashtastic.doGet(Hashtastic.java:48)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.27 logs.
何か助けはありますか?