From 1e534604266081f011786dfe9b27874bc3d030d4 Mon Sep 17 00:00:00 2001
From: ulrich <not disclosed>
Date: Sat, 11 Mar 2017 15:52:02 +0000
Subject: [PATCH] Bildausgabe Miniaturansicht
---
src/de/uhilger/wbx/web/TNServlet.java | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 53 insertions(+), 3 deletions(-)
diff --git a/src/de/uhilger/wbx/web/TNServlet.java b/src/de/uhilger/wbx/web/TNServlet.java
index 198bced..0991c2c 100644
--- a/src/de/uhilger/wbx/web/TNServlet.java
+++ b/src/de/uhilger/wbx/web/TNServlet.java
@@ -17,7 +17,15 @@
*/
package de.uhilger.wbx.web;
+import de.uhilger.wbx.Bild;
+import java.awt.Container;
+import java.awt.Image;
+import java.awt.MediaTracker;
+import java.awt.Toolkit;
+import java.io.File;
import java.io.IOException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@@ -30,6 +38,8 @@
*
*/
public class TNServlet extends DefaultServlet {
+
+ private static final Logger logger = Logger.getLogger(TNServlet.class.getName());
/**
* Diese String-Konstanten noetigenfalls in eine
@@ -52,12 +62,52 @@
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
- String urlStr = request.getRequestURI();
- if(urlStr.contains(TN) && (urlStr.endsWith(JPG) || urlStr.endsWith(JPEG) || urlStr.endsWith(PNG))) {
+ String uriStr = request.getRequestURI();
+ String relname = uriStr.substring(request.getContextPath().length());
+
+ /*
+ File urifile = new File(uriStr);
+ uriStr = uriStr.substring(request.getContextPath().length());
+ File dir = new File(request.getServletContext().getRealPath("/"));
+ File imgfile = new File(dir, uriStr);
+
+ StringBuffer buf = new StringBuffer();
+ buf.append("contextPath: ");
+ buf.append(request.getContextPath());
+ buf.append("\n");
+ buf.append("realpath of /: ");
+ buf.append(request.getServletContext().getRealPath("/"));
+ buf.append("\n");
+ buf.append("urifile: ");
+ buf.append(urifile.getAbsolutePath());
+ buf.append("\n");
+ buf.append("imgfile: ");
+ buf.append(imgfile.getAbsolutePath());
+ logger.fine(buf.toString());
+ */
+
+ if(uriStr.contains(TN) && (uriStr.endsWith(JPG) || uriStr.endsWith(JPEG) || uriStr.endsWith(PNG))) {
/*
TODO: hier mit Hilfe der Klasse Bild eine Miniaturansicht erzeugen
und in die Antwort schreiben
- */
+ */
+ File dir = new File(request.getServletContext().getRealPath("/"));
+ relname = relname.replace(TN, "");
+ File imgfile = new File(dir, relname);
+ Image image = Toolkit.getDefaultToolkit().getImage(imgfile.getAbsolutePath());
+ MediaTracker mediaTracker = new MediaTracker(new Container());
+ mediaTracker.addImage(image, 0);
+ try {
+ mediaTracker.waitForID(0);
+
+ if (!mediaTracker.isErrorAny()) {
+ Bild bild = new Bild();
+ bild.writeImageStream(image, bild.getVariantenGroesse(Bild.WINZIG), bild.getMimeType(imgfile), response.getOutputStream());
+ }
+ } catch (InterruptedException ex) {
+ logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+ }
+
} else {
super.doGet(request, response);
}
--
Gitblit v1.9.3