java中怎么实现截图！不是压缩！！！是截取

java.awt.Robot有一个功能是屏幕截图,

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也给我来一份页面截图代码
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找到一个简单的~~截全屏的~~
功能可能要扩展~
public class A {
/**
  * @param args
  */
public static void captureScreen(String fileName) throws Exception {
     Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
     Rectangle screenRectangle = new Rectangle(screenSize);
     Robot robot = new Robot();
     BufferedImage image = robot.createScreenCapture(screenRectangle);
     ImageIO.write(image, "jpg", new File(fileName));
}
public static void main(String[] args) {
  // TODO Auto-generated method stub
  String str="D:\\aa.jpg";
  try {
   captureScreen(str);
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
}
}

以前我们项目的代码你看看吧
1.action package edu.sxau.eduasis.action; import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession; import org.apache.commons.beanutils.BeanUtils;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.MappingDispatchAction;
import org.apache.struts.upload.FormFile; import edu.sxau.eduasis.domain.CollegeInfo;
import edu.sxau.eduasis.domain.Student;
import edu.sxau.eduasis.form.StudentForm;
import edu.sxau.eduasis.form.UploadPicForm;
import edu.sxau.eduasis.service.CollegeInfoService;
import edu.sxau.eduasis.service.StudentService;
import edu.sxau.eduasis.utils.ImageCut; public class RegisterAction extends MappingDispatchAction{
private 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, ActionForm form,
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 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("picurl", "/"+student.getLoginName()+"/"+fileName);
return mapping.findForward("success");
}
//裁剪照片
public ActionForward saveIcon(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
HttpSession session = request.getSession();
Student student = (Student)session.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.valueOf(request.getParameter("txt_DropHeight"))/zoom;
String name = request.getParameter("filename");
x=x <0?0:x;
y=y <0?0:y;
ImageCut imageCut = new ImageCut((int)y,(int)x,(int)width,(int)height);
String path="student\\"+student.getLoginName();
path=this.getServlet().getServletContext().getRealPath(path);
name=name.split("/")[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("success");
}
//注册个人信息：
public ActionForward regtwo(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
request.setCharacterEncoding("utf-8");
StudentForm sf = (StudentForm)form;
Student student = new Student();
BeanUtils.copyProperties(student,sf);
String collegeName = sf.getCollegeName();
String departmentName = sf.getDepartmentName();
System.out.println("departmentName"+departmentName);
CollegeInfo collegeInfo = cs.findCollege(collegeName,departmentName);
student.setCollegeInfo(collegeInfo);
ss.addStudent(student);
HttpSession session = request.getSession();
session.setAttribute("user", student);
return mapping.findForward("success");
}
} 2 工具类 package edu.sxau.eduasis.utils;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
public class ImageCut{
    private String srcpath ;
    private String subpath ;
    private int x ;
    private int y ;
    private int width ;
    private int height ;
    public ImageCut(){
    }
    public ImageCut(int x,int y,int width,int height){
        this.x = x ;
        this.y = y ;
        this.width = width ;
        this.height = height ;
    }
    public  void cut() throws IOException{
        FileInputStream is = null ;
        ImageInputStream iis =null ;
        try{
            is = new FileInputStream(srcpath);
            Iterator <ImageReader> it = ImageIO.getImageReadersByFormatName("jpg");
            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 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 void setX(int x){
        this.x = x;
    }     public int getY(){
        return y;
    }     public void setY(int y){
        this.y = y;
    }     public static void main(String[] args)throws Exception{
        String name = "/home/soft01/03.jpg";
        ImageCut o = new ImageCut(100,100,100,100);
        o.setSrcpath(name);
        o.setSubpath("/home/soft01/2.jpg");
        o.cut() ;
    }
}

3.form
package edu.sxau.eduasis.form; import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile; public class UploadPicForm extends ActionForm{ /**
*
*/
private static final long serialVersionUID = -7700785803356319532L;
private FormFile pic;
public FormFile getPic() {
return pic;
}
public void setPic(FormFile pic) {
this.pic = pic;
} } 4.上传照片的jsp
<%@ page language="java" contentType="text/html; charset=utf-8"%>
<%@page import="java.text.*,java.util.*" %>
<%
  String picUrl = (String)request.getAttribute("picurl");
  String  step = ((Integer)request.getAttribute("step"))+"";
  String defaultPic ="/EduAsis/images/man.GIF";
  if("3".equals(step))
    defaultPic = "/EduAsis/student/"+picUrl;
%> <html>
<head>
<title> </title>
<link href="${pageContext.request.contextPath}/css/main.css" type="text/css" rel="Stylesheet" />
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/default.css" />
<script type="text/javascript" src="${pageContext.request.contextPath}/JS/jquery1.2.6.pack.js"> </script>
<script  type="text/javascript" src="${pageContext.request.contextPath}/JS/ui.core.packed.js" > </script>
<script type="text/javascript" src="${pageContext.request.contextPath}/JS/ui.draggable.packed.js" > </script>
<script type="text/javascript" src="${pageContext.request.contextPath}/JS/CutPic.js"> </script>
<script type="text/javascript">
        function Step1() {
            $("#Step2Container").hide();
        }         function Step2() {
            $("#CurruntPicContainer").hide();
        }
        function Step3() {
            $("#Step2Container").hide();
      }
          </script>
</head>
<body> <div id="outer"> <div id="upbg"> </div> <div id="inner"> <div id="header">
<h1> <span>EduAsis </span> <sup>1.0 </sup> </h1>
<h2>by heyee </h2>
</div> <div id="splash"> </div> <div id="menu">
<h3>用户注册第二步：头像上传 </h3> <div id="date"> <b> <%SimpleDateFormat format=new SimpleDateFormat("yyyy/MM/dd  a hh:mm:ss");%>
<%=format.format(new Date())%>
</b> </div>
</div>
<div id="primarycontent">  <div class="post" style="width:650px">
<div class="header">
<h3>头像上传 </h3>
</div>
<div class="content" style="width:650px">
<div>
    <div class="left">
        
        <div id="CurruntPicContainer">
            <div class="title"> <b>当前照片 </b> </div>
            <div class="photocontainer">
                <img id="imgphoto" src=" <%=defaultPic%>" style="border-width:0px;width:120;height:120" />
            </div>
        </div>
        
        <div id="Step2Container">
          <div class="title"> <b> 裁切头像照片 </b> </div>
          <div class="uploadtooltip">您可以拖动照片以裁剪满意的头像 </div>
                  <div id="Canvas" class="uploaddiv">

                            <div id="ImageDragContainer">
                              <img id="ImageDrag" class="imagePhoto" src="/EduAsis/student/${picurl}" style="border-width:0px;" />
                            </div>
                            <div id="IconContainer">
                              <img id="ImageIcon" class="imagePhoto" src="/EduAsis/student/${picurl}" style="border-width:0px;" />
                            </div>
                    </div>
                    <div class="uploaddiv">
                      <table>
                            <tr>
                                <td id="Min">
                                        <img alt="缩小" src="/EduAsis/image/_c.gif" onmouseover="this.src='image/_c.gif';" onmouseout="this.src='image/_h.gif';" id="moresmall" class="smallbig" />
                                </td>
                                <td>
                                    <div id="bar">
                                        <div class="child">
                                        </div>
                                    </div>
                                </td>
                                <td id="Max">
                                        <img alt="放大" src="/EduAsis/image/c.gif" onmouseover="this.src='/EduAsis/image/c.gif';" onmouseout="this.src='/EduAsis/image/h.gif';" id="morebig" class="smallbig" />
                                </td>
                            </tr>
                        </table>
                    </div>
                    <form action="saveIcon.do" method="post">
                    <div class="uploaddiv">
                        <input type="submit" name="btn_Image" value="保存头像" id="btn_Image" />
                    </div>
                    <div>
                     <input name="filename" type="hidden" value="${picurl}" id="txt_filename" /> <br />
               <input name="txt_top" type="hidden" value="82" id="txt_top" /> <br />
               <input name="txt_left" type="hidden" value="73" id="txt_left" /> <br />
               <input name="txt_DropWidth" type="hidden" value="120" id="txt_DropWidth" /> <br />
               <input name="txt_DropHeight" type="hidden" value="120" id="txt_DropHeight" /> <br />
               <input name="txt_Zoom" type="hidden" id="txt_Zoom" />
                  </div>  </form>
        </div>

    </div>
      <form name="form1" method="post" action="uploadPic.do" id="form1" enctype="multipart/form-data">
    <div class="right">
        
        <div id="Step1Container">
            <div class="title"> <b>更换照片 </b> </div>
            <div id="uploadcontainer">
                <div class="uploadtooltip">请选择新的照片文件，文件需小于2.5MB </div>
                <div class="uploaddiv"> <input type="file" name="pic" id="fuPhoto" title="选择照片" /> </div>
                <div class="uploaddiv">
                <input type="submit" name="btnUpload" value="上传" id="btnUpload" />
                <input type="button" name="finish" value="完成" id="finish" onclick="window.location='main.do';" />
                </div>

            </div>

        </div>
    </div>
    </form>
    </div>
    <%
      if(null==picUrl||"".equals(picUrl))
      {%>
          <script type='text/javascript'>Step1(); </script>
      <%}else if(!"".equals(picUrl)&& "2".equals(step)){
      %>
      <script type='text/javascript'>Step2(); </script>
      <%}else if(!"".equals(picUrl)&& "3".equals(step)){
      %>
      <script type='text/javascript'>Step3(); </script>
      <%}%>
</div> </div>  </div> <div id="footer"> © EduAsis. All rights reserved. Design by heyee. </div> </div> </div> </body>
</html>

先顶下，也请各位帮忙看下我的问题http://topic.csdn.net/u/20090827/17/7842551b-c0cc-4d8e-840c-233ed08b86b3.html，谢谢

调试易

java中怎么实现截图！不是压缩！！！是截取

解决方案 »

java中怎么实现截图！ 不是压缩！！！ 是截取

解决方案 »

java中怎么实现截图！不是压缩！！！是截取