最近使用HttpClient爬取網頁，下載圖片，發現很多都有問題，圖像只能顯示一半。后來上網搜，找到了解決辦法，如下所述。

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下載部分的邏輯寫成下面這樣就可以了

public void download(String url) throws HttpException, ClientProtocolException, IOException {String[] filename;HttpClient httpClient；HttpGet getMethod = new HttpGet(url);HttpResponse response = httpClient.execute(getMethod);//logger.info(response.getStatusLine());int statusCode = response.getStatusLine().getStatusCode();if (statusCode == HttpStatus.SC_OK) {filename = url.split("/"); // 取圖片鏈接的最后一段為文件名File storeFile = new File("E:\\JAVA_programm\\網頁文件\\images\\" + filename[filename.length-1]+ ".tmp"); // 先存為臨時文件，等全部下完再改回原來的文件名FileOutputStream outputStream = new FileOutputStream(storeFile);InputStream inputStream = response.getEntity().getContent();byte b[] = new byte[32*1024];int j = 0;while( (j = inputStream.read(b)) != -1 ){outputStream.write(b,0,j);}if (outputStream != null){outputStream.close();}storeFile.renameTo(new File("E:\\JAVA_programm\\網頁文件\\simplecd_images\\" + filename[filename.length-1]));b = null;logger.info("圖片-" + filename[filename.length-1] + "-下載完成！！");} else {logger.error("Something wrong and the code is " + statusCode);logger.error("And the wrong page is " + url);}response = null;getMethod.releaseConnection(); }

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