上传图片图片服务器

上传图片图片服务器 package cms.huisou.common.util; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.util.Date; import org.apache.struts2.ServletActionContext; import cms.huisou.common.struts2.action.BaseAction; import com.opensymphony.xwork2.ActionSupport; /** * 保证有commons-fileupload.jar,Commons-io.jar，注意jsp传过来的File的name= imgFile ,配置文件加上 interceptor-ref name= fileUploadStack /interceptor-ref * 包含上传的只需要继承FileUploadAction,自定义一个方法，使用FileUploadAction属性操作上传，例子cms.huisou.info.action.AddHcinfoAct的upload,需要上传的时候只需要this.upload(); */ public class FileUploadAction extends BaseAction { org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequest f; protected static final int BUFFER_SIZE = 16 * 1024; protected File imgFile; protected String imgFileContentType; protected String imgFileFileName; public File getImgFile() { return imgFile; } public void setImgFile(File imgFile) { this.imgFile = imgFile; } public String getImgFileContentType() { return imgFileContentType; } public void setImgFileContentType(String imgFileContentType) { this.imgFileContentType = imgFileContentType; } public String getImgFileFileName() { return imgFileFileName; } public void setImgFileFileName(String imgFileFileName) { this.imgFileFileName = imgFileFileName; } protected static void copy(File src, File dst) { try { InputStream in = null ; OutputStream out = null ; try { in = new BufferedInputStream( new FileInputStream(src), BUFFER_SIZE); out = new BufferedOutputStream( new FileOutputStream(dst), BUFFER_SIZE); byte [] buffer = new byte [BUFFER_SIZE]; while (in.read(buffer) 0 ) { out.write(buffer); } } finally { if ( null != in) { in.close(); } if ( null != out) { out.close(); } } } catch (Exception e) { e.printStackTrace(); } } protected static String getExtention(String fileName) { int pos = fileName.lastIndexOf( . ); return fileName.substring(pos); } } class AddHcinfoAct extends FileUploadAction 代码写道 public void upload() { imgFileFileName = new Date().getTime()+ getExtention(imgFileFileName); File imageFile = new File(ServletActionContext.getServletContext().getRealPath( /UploadImages )+ / + imgFileFileName); copy(imgFile, imageFile); } 注意JSP提交的时候加上: enctype= multipart/form-data 然后在相应的方法调用this.upload()即可 好一段时间因为时间忙，偶尔光顾下javaeye。 我记得以前做过用htmlparser抓取的img标签，然后要把所有的图片上传到图片服务器上，这期间经历了好多的波折，刚开始直接写流，不行，因为想javaeye，百度等有的图片路径是非正常路径的。比如:www.javaeye/upload/test.jpg2005-1-1/ 这显示的是一个图片，但是我写流就出现了问题，而且对百度的图片不能抓取。第二次改进，用百度爬虫写流，但是我不知道为何，到上传到服务器后图片变形了。这种方案不行，后来用了httpclient，当我试啦试百度和javaeye后，很惊喜，都可以，后来测试了很多的非正常的图片，也未发现有不行的情况存在。 1: 普通的地址图片上传，只能上传普通的地址一般是后缀jpg,png,gif之类的图片。其中imgurl是图片地址路径，disppath为保存的文件夹，name是文件名 URL u = new URL(imgurl); URLConnection uc = u.openConnection(); InputStream in = uc.getInputStream(); OutputStream out = new FileOutputStream(disppath+ name); byte[] buffer = new byte[1024]; while (in.read(buffer) 0) { out.write(buffer); } out.flush(); out.close(); in.close(); 2: 可以上传特殊的图片，后缀可以是/180,/order等等特殊图片路径的 public void readFileAndWrite(String Stringurl,String targetPath) { try { System.getProperties(); URL url = new URL(Stringurl); URLConnection urlconnection = url.openConnection(); urlconnection.setDoInput(true); urlconnection.setDoOutput(true); urlconnection.setUseCaches(false); urlconnection.setRequestProperty( User-Agent , Baiduspider+(+) ); urlconnection.setRequestProperty( Content-Type , application/x-www-form-urlencoded ); InputStream input = urlconnection.getInputStream(); File dest = new File(targetPath); FileOutputStream out = new FileOutputStream(dest); int b = 0; while((b= input.read())!=-1) out.write(b); out.close(); input.close(); } catch (Exception u8e) { log.error(u8e.getMessage()); throw new RuntimeException(u8e.getMessage()); } } 3: 上面两种可能方，案都不能上传这样的图片百度很特殊的图片,百度图片屏蔽啦一些不 法的读取文件，下面是模拟客户端来抓取图片，上传需要三个jar包:httpcore-4.0.1.jar， httpclient-4.0.jar，commons-logging-1.1.1.jar，代码实例: HttpClient httpclient = new DefaultHttpClient(); String url = ; // 生成一个请求对象 HttpGet httpget = new HttpGet(url); httpget.setHeader( referer , ); // 执行请求 HttpResponse response = httpclient.execute(httpget); HttpEntity entity = response.getEntity(); if (entity != null) { InputStream in = entity.getContent(); int b = 0; FileOutputStream out = new FileOutputStream( a.jpg ); while ((b = in.read()) != -1) { System.out.println(b); out.write(b); } out.close(); in.close(); } httpclient.getConnectionManager().shutdown(); 部分代码: // htmlparser抓取图片 public static String parserto(String contentString,String pathString,String httpurl) { String stringBuffer=null; Date date = new Date(); SimpleDateFormat simpleDateFormat = new SimpleDateFormat( yyyyMMddhhmmssms ); try { List list = new ArrayList(); Parser parser = Parser.createParser(contentString, UTF-8 ); NodeList nodeList = parser .extractAllNodesThatMatch(new NodeFilter() { public boolean accept(Node node) { if (node instanceof ImageTag)// img 标记 return true; return false; } }); if(nodeList.size() 0){ for (int i = 0; i nodeList.size(); i++) { String url = ((ImageTag) nodeList.elementAt(i)).getImageURL(); url=StrUtils.htm2txt(url); Random ran = new Random(); int a = ran.nextInt(1000); String imgname = simpleDateFormat.format(new Date())+a+ .jpg ; String reurl = ((ImageTag) nodeList.elementAt(i)).getImageURL(); contentString=contentString.replace(reurl, httpurl + imgname); // pathString = C:\\Documents and Settings\\Administrator\\桌面\\t\\ ; writeimg(url,pathString+imgname); } } } catch (Exception e) { } contentString.replaceAll( nbsp; , ); return contentString; } //httpclient模拟器写图片,几乎所有格式的图片都可以，ftp方式的图片? http ! public static void writeimg(String url,String targetPath) throws ClientProtocolException, IOException { HttpClient httpclient = new DefaultHttpClient(); HttpGet httpget = new HttpGet(url); httpget.setHeader( referer , ); HttpResponse response = httpclient.execute(httpget); HttpEntity entity = response.getEntity(); if (entity != null) { InputStream in = entity.getContent(); int b = 0; FileOutputStream out = new FileOutputStream(new File(targetPath)); while ((b = in.read()) != -1) { out.write(b); } out.close(); in.close(); } httpclient.getConnectionManager().shutdown(); } 注意:htmlparser和httpclient需要添加相应的jar