我想用java實現一個簡單的web服務器。 問題是圖像在Web瀏覽器上無法正確顯示;所有我能看到的,如果我去localhost:8888/image.png,是一個白色方形,確切的寬度,高度和重量。 提前謝謝! :)通過http發送圖片到瀏覽器
下面是代碼:
public Http(Socket server) throws IOException {
in = new BufferedReader(new InputStreamReader(server.getInputStream()));
parseHeader(in);
String response = new String();
out = new PrintWriter(server.getOutputStream(), true);
Files f = new Files(getHomePath() + httpRequestedPage);
if(!f.exists) {
// 404 ERROR
} else {
response += "HTTP/1.1 200 OK\r\n";
response += "Date: " + nowDate + "\r\n";
response += "Content-Type: image/png\r\n";
response += "Content-Length: " + res.length() + "\r\n";
response += "Connection: keep-alive\r\n";
response += "\r\n";
response += IOUtils.toString(new FileInputStream(getHomePath() + httpRequestedPage));
}
out.println(response);
in.close();
out.close();
}
編輯:
不幸的是它返回相同的消息。
out = new PrintWriter(server.getOutputStream(), true);
OutputStream out2 = server.getOutputStream();
File file = new File(HttpServer.getHomePath() + httpRequestedPage);
InputStream stream = new FileInputStream(file);
String response = new String();
response += "HTTP/1.1 200 OK\r\n";
response += "Date: " + nowDate + "\r\n";
response += "Content-Type: image/png\r\n";
response += "Content-Length: " + file.length() + "\r\n";
response += "Connection: keep-alive\r\n";
response += "\r\n";
out.println(response);
IOUtils.copy(stream, out2);
out.close();
out2.close();
我嘗試了這樣的事情,但不幸的是瀏覽器返回「圖像.....無法顯示,因爲它包含錯誤」。 \t \t'OutputStream out2 = server.getOutputStream(); \t \t \t \t BufferedImage originalImage = ImageIO.read(new File(HttpServer.getHomePath()+ httpRequestedPage)); \t \t ByteArrayOutputStream baos = new ByteArrayOutputStream(); \t \t ImageIO.write(originalImage,「png」,baos); \t \t baos.flush(); \t \t byte [] imageInByte = baos.toByteArray(); out2.write(imageInByte);' – 2013-03-27 18:51:04
OutputStream out2 = server.getOutputStream(); server.setContentType(「image/png」); InputStream stream = new FileInputStream(new File(HttpServer.getHomePath()+ httpRequestedPage));IOUtils.copy(stream,out2); – pravat 2013-03-27 19:08:12
不幸的是它返回了同樣的錯誤。我編輯了這個問題,以便我可以在那裏發佈新版本的代碼。謝謝 – 2013-03-27 19:45:20