跪求图片生成器java全代码，要求可以画图和获取屏幕并且能保存。拜托各位大神了

正好写了一个，给你看看哈

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import java.awt.*;

import java.awt.image.BufferedImage;

import java.io.File;

import java.util.Date;

import javax.imageio.ImageIO;

public class ScreenCapturer {

public static void main(String[] args) throws Exception{

Date date = new Date();

Robot rbt = new Robot();

BufferedImage bf =  rbt.createScreenCapture(new Rectangle(1440,900));  //这是屏幕分辨率  可以根据自己的屏幕修改

File file = new File("d://"+ date.toString().replace(" ","").replace(":","")+".jpg");  //这是保存路径D盘根目录

ImageIO.write(bf,"jpg",file);

System.out.println("截图成功！保存于D盘根目录下！时间：" + date.toString());

}

}

java生成jpg图片 并且实现文字和图片混排

import com.sun.image.codec.jpeg.JPEGCodec;

import com.sun.image.codec.jpeg.JPEGImageEncoder;

import java.io.BufferedOutputStream;

import java.io.FileOutputStream;

import java.awt.image.BufferedImage;

import java.awt.*;

import javax.swing.ImageIcon;

public class ChartGraphics {

BufferedImage image;

void createImage(String fileLocation) {

try {

FileOutputStream fos = new FileOutputStream(fileLocation);

BufferedOutputStream bos = new BufferedOutputStream(fos);

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos);

encoder.encode(image);

bos.close();

} catch (Exception e) {

e.printStackTrace();

}

}

public void graphicsGeneration(String name, String id, String classname, String imgurl) {

int imageWidth = 500;//图片的宽度

int imageHeight = 400;//图片的高度

image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB);

Graphics graphics = image.getGraphics();

graphics.setColor(Color.WHITE);

graphics.fillRect(0, 0, imageWidth, imageHeight);

graphics.setColor(Color.BLACK);

graphics.drawString("姓名 : " + name, 50, 75);

graphics.drawString("学号 : " + id, 50, 150);

graphics.drawString("班级 : " + classname, 50, 225);

//ImageIcon imageIcon = new ImageIcon(imgurl);

//graphics.drawImage(imageIcon.getImage(), 230, 0, null);

//改成这样:

BufferedImage bimg = null;

try {

bimg = javax.imageio.ImageIO.read(new java.io.File(imgurl));

} catch (Exception e) {}

if(bimg!=null)

graphics.drawImage(bimg, 230, 0, null);

graphics.dispose();

createImage("G:\\TDDOWNLOAD\\hehe.jpg");

}

public static void main(String[] args) {

ChartGraphics cg = new ChartGraphics();

try {

cg.graphicsGeneration("ewew", "1", "12", "C:/Documents and Settings/Administrator/My Documents/My Pictures/7.jpg");

} catch (Exception e) {

e.printStackTrace();

}

}

}

高分求java代码，用来生成图片文件！！

//defaultSuffix是jpg

public static final boolean resizeImage(String fileName, String suffix) throws Exception {

boolean uploaded = false;

BufferedImage input;

if(suffix.equalsIgnoreCase("tif")||suffix.equalsIgnoreCase("tiff")||suffix.equalsIgnoreCase("png")) {

RenderedImage image = JAI.create("fileload", TurbineServlet.getRealPath(imageRoot + fileName+"."+suffix));

WritableRaster raster = image.copyData(null);

BufferedImage bi = new BufferedImage( image.getColorModel(), raster, true, null);

BufferedImage bi2 = new BufferedImage( maxResizeDimension, bi.getHeight()*maxResizeDimension/bi.getWidth(), BufferedImage.TYPE_INT_RGB);

Graphics2D g2 = bi2.createGraphics();

g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

g2.setBackground(java.awt.Color.WHITE);//把tiff和png转换后的背景设置为白色

g2.fillRect(0, 0, maxResizeDimension, bi.getHeight()*maxResizeDimension/bi.getWidth());

g2.drawImage(bi, 0, 0, maxResizeDimension, bi.getHeight()*maxResizeDimension/bi.getWidth(), null);

PlanarImage pi = PlanarImage.wrapRenderedImage(bi2);

JAI.create("FileStore", pi, TurbineServlet.getRealPath(resizeRoot + fileName+"."+defaultSuffix).replaceAll("\\\\","\\\\\\\\"), "JPEG", new JPEGEncodeParam());

input = pi.getAsBufferedImage();

int w = maxThumbDimension, h = maxThumbDimension;

BufferedImage output = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);

Graphics2D g = output.createGraphics();

g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

g.drawImage(input,0,0,w,h, null);

ImageIO.write(output, defaultSuffix, new File(TurbineServlet.getRealPath(thumbRoot + fileName+"."+defaultSuffix)));

}

else {

input = ImageIO.read(new File(TurbineServlet.getRealPath(imageRoot + fileName+"."+suffix)));

int w = maxThumbDimension, h = maxThumbDimension;

BufferedImage output = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);

Graphics2D g = output.createGraphics();

g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

g.drawImage(input,0,0,w,h, null);

ImageIO.write(output, defaultSuffix, new File(TurbineServlet.getRealPath(thumbRoot + fileName+"."+defaultSuffix)));

BufferedImage output2 = new BufferedImage(maxResizeDimension, input.getHeight()*maxResizeDimension/input.getWidth(), BufferedImage.TYPE_3BYTE_BGR);

Graphics2D g2 = output2.createGraphics();

g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

g2.drawImage(input,0,0,maxResizeDimension, input.getHeight()*maxResizeDimension/input.getWidth(), null);

ImageIO.write(output2, defaultSuffix, new File(TurbineServlet.getRealPath(resizeRoot + fileName+"."+defaultSuffix)));

}

uploaded = true;

return uploaded;

}

怎么用java代码模拟一张图片

用java代码模拟一张图片可以这样操作：1.创建BufferedImage类

2.根据BufferedImage类得到一个Graphics2D对象

3.根据Graphics2D对象进行逻辑操作

4.处理绘图

5.将绘制好的图片写入到图片

解析下这个生成图片的Java代码

1.调用"images"文件夹里的文件放在ImageIcon里显示2.在windows下面显示正常Java在图形处理时调用了本地的图形处理库。在利用Java作图形处理（比如：图片缩放，图片签名，生成报表）时，如果运行在windows上不会出问题。如果将程序移植到Linux/Unix上的时候有可能出现图形不能显示的错误。3.提示信息："Can'tconnecttoX11windowserver"这是由于Linux的图形处理需要一个XServer服务器。（关于Linux的图形处理模式参考Tomcat的修改如下：打开%Tomcat_home%/bin/catalina.sh文件在文件的86%处，启动Tomcat的脚本中加上:-Djava.awt.headless=true/参考："$_RUNJAVA"$JAVA_OPTS$CATALINA_OPTS/-Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS"-classpath"$CLASSPATH"/-Dcatalina.base="$CATALINA_BASE"/-Dcatalina.home="$CATALINA_HOME"/-Djava.io.tmpdir="$CATALINA_TMPDIR"/-Djava.awt.headless=true/org.apache.catalina.startup.Bootstrap"$@"start/"$CATALINA_BASE"/logs/catalina.out21if[!-z"$CATALINA_PID"];thenecho$!$CATALINA_PIDfifielif["$1"="stop"];then保存后，重新启动就可以处理图形了。

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