JSP图片上传／放大缩小／裁减源代码

1、U3000分求JSP图片上传/放大缩小/裁减的源代码1 大 中 小 发表于 2009-08-27 10:33:00 - - - 3000分求JSP图片上传/放大缩小/裁减的源代码。能裁减固定大小比如(12 0*10 0)的就行。有预览，能显示图片长宽和大小(file size) 最好。本人结帖率是 99.87%, 可用分8 0 0 0+guestdsf非常感谢！如果没有JSP源代码，PHP源代码也可以。package myBea n;import java.io.*;public class uploadpic String picPath;/图片路径(如：F:picturea.gif)pub

2、lic String pictype;设置图片的后缀名FileInputStream in;省市滋发息加友in t picle ngth;/设置图片的最大kbpublic void setpicPath(Stri ng picPath)/this.picPath=picPath;获得图片的路径心讪人 口public void setpiclength(int piclength)/设置图片的最大铜牌会贝长度this.picle ngth=picle ngth;public int getpicle ngth()return picle ngth;public boolean testle ng

3、th()判断图片的长度是否大于设定的最大长度tryin=new FileInputStream(picPath);9if(in.available()/1024piclength)return false; catch(IOException e)J return true;public void setpictype(String pictype)/设置图片的扩展名 this.pictype=pictype;public boolean testpictype()/ 判断图片的扩展名是否是规定 的 if(pictype!=null) for(int i=0;i pictype.length;

4、i ) if(picPath.endsWith(pictype) return true; return false; return false;以下是在 jsp 页面中调用 uploadpic 首先要引入此 bean 所在的包 下一条语句是得到上一层页面，也就是用户提交的图片路径！ String picp=codetostring.codeToString(request.getParameter(picPath); pic.setpicPath(picp);pic.setpiclength(100);/ 以 kb 为单位if(pic.testlength()out.print(length

5、 ok );elseout.print(length ok);String p1,p2;p1=.jpg;p2=.gif;String type=p1,p2;pic.setpictype(type);if(pic.testpictype() out.print(typeok);elseout.print(type error);made by zonecens不知道 2 楼的怎么样，我来学习一个！帮顶！ 好像百度一招很多 百度一下，找到相关网页约 11,400,000 篇，用时 0.036 秒 3000 连个星星都升不了这个是JAVA代码packageftp;import;import.*;im

6、portjava.awt.*;import;importjava.applet.*;importjava.io.*;classFTPextendsAppletFtpClientaftp;DataOutputStream outputs;TelnetInputStream ins;TelnetOutputStream outs;TextArea lsArea; Label LblPrompt; Button BtnConn; Button BtnClose;TextFieldTextFieldTextFieldintpublic String aTxtUID;TxtPWD;TxtHost;ch;

7、= 没有连接主机 ;String hostname public void init() setBackground(Color.white);setLayout(new GridBagLayout();GridBagConstraintsGBC = new GridBagConstraints();LblPrompt= new Label( 没有连接主机 );LblPrompt.setAlignment(Label.LEFT);BtnConn = new Button( 连接 );BtnClose = new Button( 断开 );BtnClose.enable(false);TxtUI

8、D=newTextField(,15);TxtPWD=newTextField(,15);TxtPWD.setEchoCharacter(*);TxtHost=newTextField(,20);Label LblUID = new Label(User ID:);Label LblPWD =new Label(PWD:);Label LblHost = new Label(Host:);lsArea = new TextArea(30, 80);lsArea.setEditable(false);GBC.gridwidth = GridBagConstraints.REMAINDER;GBC

9、.fill = GridBagConstraints.HORIZONTAL;( (GridBagLayout)getLayout().setConstraints(LblPrompt, GBC);add(LblPrompt);GBC.gridwidth = 1;( (GridBagLayout) getLayout().setConstraints(LblHost, GBC);add(LblHost);GBC.gridwidth = GridBagConstraints.REMAINDER;( (GridBagLayout) getLayout().setConstraints(TxtHost

10、, GBC);add(TxtHost);GBC.gridwidth = 1;( (GridBagLayout) getLayout().setConstraints(LblUID, GBC);add(LblUID);GBC.gridwidth = 1;( (GridBagLayout) getLayout().setConstraints(TxtUID, GBC); add(TxtUID);GBC.gridwidth = 1;( (GridBagLayout) getLayout().setConstraints(LblPWD, GBC);add(LblPWD);GBC.gridwidth =

11、 1;( (GridBagLayout) getLayout().setConstraints(TxtPWD, GBC);add(TxtPWD);GBC.gridwidth = 1;GBC.weightx = 2;( (GridBagLayout) getLayout().setConstraints(BtnConn, GBC);add(BtnConn);GBC.gridwidthGridBagConstraints.REMAINDER;( (GridBagLayout) getLayout().setConstraints (BtnClose, GBC);add(BtnClose);GBC.

12、gridwidth = GridBagConstraints.REMAINDER;GBC.fill = GridBagConstraints.HORIZONTAL;( (GridBagLayout) getLayout().setConstraints(lsArea, GBC);add(lsArea);Stringpublic boolean connect(String hostname,uid, String pwd) this.hostname = hostname;LblPrompt.setText( 正在连接，请等待 );try aftp = new FtpClient(hostna

13、me);aftp.login(uid, pwd);aftp.binary();showFileContents();catch (FtpLoginException e) a = 无权限与主机 : + hostname + 连接 !;LblPrompt.setText(a);return false;catch (IOException e) a = 连接主机 : + hostname +失败 !;LblPrompt.setText(a);return false;catch (SecurityException e) a = 无权限与主 机 : + hostname + 连接 !;LblPr

14、ompt.setText(a);return false;LblPrompt.setText( 连接主机: + hostname + 成功 !);return true;public void stop() try aftp.closeServer();catch (IOException e) public void paint(Graphics g) public boolean action(Event evt, Object obj)if (evt.target = BtnConn) LblPrompt.setText( 正在连接，请等 待);if (connect(TxtHost.g

15、etText(), TxtUID.g etText(), TxtPWD.getText() BtnConn.setEnabled(false);BtnClose.setEnabled(true);return true;if (evt.target = BtnClose) stop();BtnConn.enable(true);BtnClose.enable(false);LblPrompt.setText( 与主机 + hostname + 连接已断开 !);return true;return super.action(evt, obj);public boolean sendFile(S

16、tringfilepathname)= true;null) 正在粘贴文件 , 请耐心等boolean resultif (aftp !=LblPrompt.setText(待);String contentperline;try a = 粘贴成功 !;String fg = new String();int index = filepathname.lastIn dexOf(fg);String filename = filepathname. substring(index + 1);File localFile;localFile = new File(filepathname);Ran

17、domAccessFile sendFile = newRandomAccessFile(filepathname, r);/sendFile.seek(0);outs = aftp.put(filename);outputs = new DataOutputStream( outs);while (sendFile.getFilePointer()= 0)buf.append( (char) ch);lsArea.appendText(buf.toString();ins.close();catch (IOException e) public static void main(String

18、 args) Frame f = new Frame(FTP Client); f.addWindowListener(new WindowAdapter() public void windowClosing(WindowEvent e) System.exit(0););FTP ftp = new FTP();ftp.init();ftp.start();f.add(ftp);f.pack();f.setVisible(true); 引用 回复2楼 2004-10-13 08:56 angel7532这个是HTML网页FTP 下载 var javawsInstalled = false;v

19、ar isIE = false;var isICE = ICEBrowser) = 0;if (navigator.mimeTypes &javawsInstallednavigator.mimeTypesapplication/x-java-jnlp-file;elseisIE = true;function insertLink(url, name) if (javawsInstalled) document.write( + name + ); else if (isICE) document.write(JBuilders Web View does not support Web S

20、tart (no appropriate Web Start plugin is available).);document.write(Otherpopular(external) browsers are supported); elsedocument.write(Needto installJavaWebStart);document.write(formore information,50);visitdocument.write( ); document.write(the Java Web Start page)document.write( );on error resume

21、nextIf isIE ThenIf Not(IsObject(CreateObject(JavaWebStart.IsInstalled) ThenfalsejavawsInstalledElsejavawsInstalled = trueEnd IfEnd IfJava Web Start application FTP 下载 3楼 2004-10-13 09:21 szabo 引用 回复angel7532（ 卡卡西 ）:哪我服务器上要不要作一些配置或安装其他软件呢？4楼 2004-10-15 09:30 szabo 引用 回复不能沉啊。哪位还能讲讲都需要哪些准备工作呀？ 引用 回复 引用

22、 回复5楼 2004-10-18 08:40 szabo真的没有人理了吗？6楼 2004-10-18 08:58 gjd111686服务器是否允许安装FTP站点?7楼 2004-10-18 09:00 gjd111686 引用 回复来上传客户端可以用 JS 来完成下载 , 上传可以通过 具体服务器处理可以参考 /archive/2004/08/18/78324.aspxfunction DownURL(strRemoteURL,strLocalURL)tryvar xmlHTTP=new ActiveXObject(Microsoft.XMLHTTP);xmlHTTP.open(Get,str

23、RemoteURL,false);xmlHTTP.send();var adodbStream=new ActiveXObject(ADODB.Stream);adodbStream.Type=1;/1=adTypeBinaryadodbStream.Open();adodbStream.write(xmlHTTP.responseBody);adodbStream.SaveToFile(strLocalURL,2);adodbStream.Close();adodbStream=null;xmlHTTP=null;/OpenFile(strLocalURL);catch（e）window.c

24、onfirm（ 下载 URL 出错 !）;/window.confirm（ 下载完成 .）;学习学习楼主自在网上搜一下相似的，自己加工一下可以做成的而且可以学习很多东西，还有别人的代码哈看在这么多分的份上顶一个 重金之下，毕有猛夫！/1497016/眼热啊 众虎之争啊，我来 UP下1.actionpackage ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import

25、 ;import ;import ;public class RegisterAction extends MappingDispatchActionprivate StudentService ss; /-private CollegeInfoService cs; /-public void setCs(CollegeInfoService cs) this.cs = cs;public void setSs(StudentService ss) this.ss = ss;/ 上传照片public ActionForward uploadPic(ActionMapping mapping,

26、 ActionFormform,HttpServletRequest request, HttpServletResponse response)throws Exception HttpSession session = request.getSession();Student student = (Student)session.getAttribute(user);UploadPicForm f = (UploadPicForm)form;FormFile ff = f.getPic(); /-String fileName=ff.getFileName();/- 如果浏览框中的文件名为

27、空，则返回本页面if(fileName.trim().equals()return mapping.findForward(fail);fileName=student.getLoginName()+.+fileName.split(.)1;String path=student+student.getLoginName();path=this.getServlet().getServletContext().getRealPath(path);File pathFile = new File(path);if(!pathFile.exists()pathFile.mkdirs();File

28、file = new File(path,fileName);BufferedInputStream bis=new BufferedInputStream(ff.getInputStream();BufferedOutputStream bos=new BufferedOutputStream(new FileOutputStream(file);int b=-1;while(b=bis.read()!=-1)bos.write(b);bis.close();bos.close();request.setAttribute(step, 2);request.setAttribute(picu

29、rl,/+student.getLoginName()+/+fileName);return mapping.findForward(success);/ 裁剪照片public ActionForward saveIcon(ActionMapping mapping, ActionFormform,HttpServletRequest request, HttpServletResponse response)throws Exception HttpSession session = request.getSession();Student student = (Student)sessio

30、n.getAttribute(user);Double zoom = Double.valueOf(request.getParameter(txt_Zoom); double x = Double.valueOf(request.getParameter(txt_top)/zoom; double y = Double.valueOf(request.getParameter(txt_left)/zoom;double width = Double.valueOf(request.getParameter(txt_DropWidth)/zoom;double height =Double.v

31、alueOf(request.getParameter(txt_DropHeight)/zoom;String name = request.getParameter(filename);x=x 0?0:x;y=y 0?0:y;ImageCut imageCut = newImageCut(int)y,(int)x,(int)width,(int)height);String path=student+student.getLoginName();path=this.getServlet().getServletContext().getRealPath(path);name=name.spl

32、it(/)2;imageCut.setSrcpath(path+name);imageCut.setSubpath(path+name);request.setAttribute(step, 3); request.setAttribute(picurl,/+student.getLoginName()+/+name);imageCut.cut(); student.setIconPath(/EduAsis/student/+student.getLoginName()+/+name);ss.updateStudent(student);return mapping.findForward(s

33、uccess);/ 注册个人信息：public ActionForward regtwo(ActionMapping mapping, ActionFormform,HttpServletRequest request, HttpServletResponse response)throws Exception request.setCharacterEncoding(utf-8);StudentForm sf = (StudentForm)form;Student student = new Student();BeanUtils.copyProperties(student,sf);Str

34、ing collegeName = sf.getCollegeName();String departmentName = sf.getDepartmentName();departmentName+departmentName);CollegeInfo collegeInfo =cs.findCollege(collegeName,departmentName);student.setCollegeInfo(collegeInfo);ss.addStudent(student);HttpSession session = request.getSession();session.setAtt

35、ribute(user, student);return mapping.findForward(success);2 工具类package ;import ;import ;import ;import ;import ;import ;import ;import ;import ;import ;public class ImageCutprivate String srcpath ;private String subpath ;private int x ;private int y ;private int width ;private int height ;public Ima

36、geCut()public ImageCut(int x,int y,int width,int height)this.x = x ;this.y = y ;this.width = width ;this.height = height ;publicvoid cut() throws IOExceptionFileInputStream is = null ;ImageInputStream iis =null ;tryis = new FileInputStream(srcpath);Iterator it =ImageIO.getImageReadersByFormatName(jp

37、g);ImageReader reader = it.next();iis = ImageIO.createImageInputStream(is);reader.setInput(iis,true) ;ImageReadParam param =reader.getDefaultReadParam();Rectangle rect = new Rectangle(x, y, width, height); param.setSourceRegion(rect);BufferedImage bi = reader.read(0,param);ImageIO.write(bi, jpg, new

38、 File(subpath); finally if(is!=null) is.close() ; if(iis!=null) iis.close(); public int getHeight() return height;public void setHeight(int height)this.height = height;public String getSrcpath()return srcpath;public void setSrcpath(String srcpath)this.srcpath = srcpath;public String getSubpath()return subpath;public void setSubpath(String subpath) this.subpath = subpath;public int getWidth()return width;public void setWidth(int width)this.width = width;public int getX()return x;public vo