/*
* RandomCodeImage.java
* Created on Jun 3, 2008 5:57:28 PM
* Copyright (c) IBEX All Rights Reserved.
*
* This software is the confidential and proprietary information of IBEX.
* You shall not disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with IBEX.
*/
package net.mmgg.commons;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontFormatException;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Paint;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.Stroke;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Random;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.stream.ImageOutputStream;
public class RandomCodeImage {
public static ArrayList fonts = null;
// 单例模式
private static RandomCodeImage instance = null;
// 定义验证码内容
private String codes = null;
//乘法口诀常量
private final int MULTIPLY=1;//乘
private final int DIVIDED=2;//除
private final int PLUS=3;//加
private final int SUBTRACT=4;//减
/**
* 单例模式
*
* @date Jun 13, 2008 9:27:42 AM
* @author Fly(Fly@mmgg.net)
* @return
*/
public static RandomCodeImage getInstance() {
if (null == instance) {
instance = new RandomCodeImage();
}
return instance;
}
/**
* 公共构造函数，加载用户自定义字体
* @date Jun 13, 2008 4:31:22 PM
* @author Fly(Fly@mmgg.net)
* @param fontName 字体名集合
*/
public RandomCodeImage(String[] fontName){
if(null!=fonts){
return;
}
Font font=null;
fonts=new ArrayList();
for (int i = 0; i < fontName.length; i++) {
font=new Font(fontName[i],Font.PLAIN,14);
fonts.add(font);
}
}
/**
* 公共构造函数，根据字体文件所在的文件夹，加载用户自定义字体,只支持TTF字体
* @date Jun 13, 2008 5:17:08 PM
* @author Fly(Fly@mmgg.net)
* @param fontsPath
*/
public RandomCodeImage(String fontsPath){
if(null!=fonts){
return;
}
List fontlist=this.readfile(fontsPath, "TTF");
fonts = new ArrayList();
for (Iterator iterator = fontlist.iterator(); iterator.hasNext();) {
String object = (String) iterator.next();
File file_ = new File(object);
try {
Font font_ = Font.createFont(Font.TRUETYPE_FONT, file_);
fonts.add(font_);
} catch (FontFormatException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 私有构造函数，加载系统默认字体
* @date Jun 13, 2008 9:27:08 AM
* @author Fly(Fly@mmgg.net)
*/
private RandomCodeImage() {
if(null!=fonts){
return;
}
fonts = new ArrayList();
GraphicsEnvironment.getLocalGraphicsEnvironment().preferLocaleFonts();
String[] names = GraphicsEnvironment.getLocalGraphicsEnvironment()
.getAvailableFontFamilyNames(Locale.getDefault());
for (int i = 0; i < names.length; i++) {
char c = names[i].charAt(0);
if (Character.isLowerCase(c) || Character.isUpperCase(c)) {
} else {
fonts.add(new Font(names[i],Font.PLAIN,14));
}
}
}
/**
* 生成数字和字母验证码
*
* @date Jun 13, 2008 9:25:49 AM
* @author Fly(Fly@mmgg.net)
* @return
* @throws Exception
*/
private BufferedImage getImageOfABC123(){
BufferedImage bi = new BufferedImage(150, 50,
BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
String code = "23456789abcdefghijkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ";
char[] cs = code.toCharArray();
char[] use = new char[5];
g.setColor(this.getBgColor());
g.fillRect(0, 0, 150, 50);
codes="";
java.awt.geom.AffineTransform af=new AffineTransform();
af.setToRotation(Math.PI/2.0);
for (int i = 0; i < 5; i++) {
//抗锯齿，图片不失真
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
Point p = getPoint(i);
int size = getSize();
use[i] = cs[(int) (Math.random() * cs.length)];
g.setPaint(getPaint(p, size));
g.setFont(((Font) fonts.get((int) (Math.random() * fonts.size()))).deriveFont(this.getFace(), this.getSize()));
g.drawString("" + use[i], p.x, p.y);
codes += use[i];
}
g.setStroke(new BasicStroke(1.5f));
g.setPaint(null);
//画干扰线
this.drawLine(g, 2,200,50);
//画杂点
this.drawPoint(g, 50,150,50);
// 画个边框
//g.setColor(new Color((int) (Math.random() * 0x00FFFFFFF)));
//g.drawRect(1, 1, 150 - 2, 50 - 2);
g.dispose();
bi.flush();
return bi;
}
/**
* 设置背景颜色
*
* @date Jun 13, 2008 9:26:15 AM
* @author Fly(Fly@mmgg.net)
* @return
*/
private Color getBgColor() {
Random r = new Random();
int x = r.nextInt(256);
x = x > 105 ? x : (x + 150);
return new Color(x, x, x);
}
private Stroke getStroke() {
BasicStroke bs = new BasicStroke((float) (Math.random() * 3));
return bs;
}
/**
* 文字距离
*
* @date Jun 13, 2008 9:26:36 AM
* @author Fly(Fly@mmgg.net)
* @param index
* @return
*/
private Point getPoint(int index) {
return new Point(5 + (index * ((int) (Math.random() * 6) + 24)), 40);
}
private Paint getPaint(Point p, int size) {
GradientPaint gp = new GradientPaint(p.x, p.y, new Color((int) (Math
.random() * 200), 0, (int) (Math.random() * 200)), p.x, p.y
- size, new Color((int) (Math.random() * 200), (int) (Math
.random() * 200), (int) (Math.random() * 200)));
return gp;
}
/**
* 字体样式
*
* @date Jun 5, 2008 1:44:15 PM
* @author Fly(Fly@mmgg.net)
* @return
*/
private int getFace() {
if (Math.random() * 10 > 5) {
return Font.BOLD;
} else {
return Font.ITALIC;
}
}
/**
* 字体大小
*
* @date Jun 5, 2008 1:44:00 PM
* @author Fly(Fly@mmgg.net)
* @return
*/
private int getSize() {
int[] sizes = new int[20];
for (int i = 0; i < 20; i++) {
sizes[i] = 30 + i;
}
return sizes[(int) (Math.random() * sizes.length)];
}
/**
* 获取验证码图像，并把图像用流输出
* 生成字母和数字的验证码
* @date Jun 13, 2008 3:19:12 PM
* @author Fly(Fly@mmgg.net)
* @param imageType 验证码输出的类型，可以是PNG或者JPGE
* @param output 输出流
* @return 验证码字符串
* @throws IOException
*/
public String drawImageOfABC123( OutputStream output) throws IOException {
try {
this.drawImage(this.getImageOfABC123(), output);
} catch (IOException e) {
e.printStackTrace();
throw e;
} finally{
output.flush();
output.close();
}
return codes;
}
public String drawImageOfABC123( ByteArrayOutputStream output) throws IOException {
try {
//ImageIO.write(this.getImageOfABC123(), imageType.toUpperCase(), output);
this.drawImage(this.getImageOfABC123(), output);
} catch (IOException e) {
e.printStackTrace();
throw e;
}finally{
output.flush();
output.close();
}
return codes;
}
/**
* 获取验证码图像，并把图像用流输出
* 生成加减乘除的验证码
* @date Jun 13, 2008 3:20:40 PM
* @author Fly(Fly@mmgg.net)
* @param imageType 验证码输出的类型，可以是PNG或者JPGE
* @param output 输出流
* @return 验证码字符串
* @throws IOException
*/
public String drawImageOfMultiplicationFormula(OutputStream output) throws IOException{
try {
this.drawImage(this.getImageOfMultiplicationFormula(), output);
//ImageIO.write(this.getImageOfMultiplicationFormula(), imageType.toUpperCase(), output);
} catch (IOException e) {
e.printStackTrace();
throw e;
}finally{
output.flush();
output.close();
}
return codes;
}
public String drawImageOfMultiplicationFormula(ByteArrayOutputStream output) throws IOException{
try {
this.drawImage(this.getImageOfMultiplicationFormula(), output);
//ImageIO.write(this.getImageOfMultiplicationFormula(), imageType.toUpperCase(), output);
} catch (IOException e) {
e.printStackTrace();
throw e;
}
finally{
output.flush();
output.close();
}
return codes;
}
/**
* 获取验证码图像，并把图像用流输出
* 生成中文汉字的验证码
* @date Jun 13, 2008 3:13:15 PM
* @author Fly(Fly@mmgg.net)
* @param imageType 验证码输出的类型，可以是PNG或者JPGE
* @param output 输出流
* @return 验证码字符串
* @throws IOException
*/
public String drawImageOfChineseChar(OutputStream output) throws IOException{
try {
//ImageIO.write(this.getImageOfChineseChar(), imageType.toUpperCase(), output);
this.drawImage(this.getImageOfChineseChar(), output);
} catch (IOException e) {
e.printStackTrace();
throw e;
}finally{
output.flush();
output.close();
}
return codes;
}
public String drawImageOfChineseChar(ByteArrayOutputStream output) throws IOException{
try {
this.drawImage(this.getImageOfChineseChar(), output);
//ImageIO.write(this.getImageOfChineseChar(), imageType.toUpperCase(), output);
} catch (IOException e) {
e.printStackTrace();
throw e;
}finally{
output.flush();
output.close();
}
return codes;
}
/**
* 产生清晰的图片
* @Author：吴云辉
* @date:Oct 22, 2009 9:47:42 AM
* @param image
* @param output
* @throws IOException
*/
private void drawImage(BufferedImage image,Object output) throws IOException{
//BufferedImage image =this.getImageOfABC123();
//ImageIO.write(this.getImageOfABC123(), imageType.toUpperCase(), output);
ImageWriter writer = null;
ImageTypeSpecifier type = ImageTypeSpecifier.createFromRenderedImage(image);
Iterator<ImageWriter> iter = ImageIO.getImageWriters(type, "JPG");
if (iter.hasNext()) {
writer = (ImageWriter) iter.next();
}
IIOImage iioImage = new IIOImage(image, null, null);
ImageWriteParam param = writer.getDefaultWriteParam();
param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
param.setCompressionQuality((float) (1));
ImageOutputStream outputStream = ImageIO.createImageOutputStream(output);
writer.setOutput(outputStream);
writer.write(null, iioImage, param);
}
/**
* 产生从X到Y的随机数
*
* @date Jun 13, 2008 9:59:47 AM
* @author Fly(Fly@mmgg.net)
* @param x
* @param y
* @return
*/
private int getRandom(int x, int y) {
return new Random().nextInt(y - x + 1) + x;
}
/**
* 生成乘法口诀类似的加、减、乘、除运算公式
*
* @date Jun 13, 2008 10:03:37 AM
* @author Fly(Fly@mmgg.net)
* @return
*/
private BufferedImage getImageOfMultiplicationFormula(){
String cds=this.getMultiplication(this.getRandom(1, 4));
int width_;
final int height_=50;
//根据文字的长度设置图片的宽度
switch (cds.length()) {
case 7:width_=160;break;
case 8:width_=180;break;
case 6:width_=140;break;
case 5:width_=120;break;
default:width_=150;break;
}
BufferedImage bi = new BufferedImage(width_, height_,BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
//抗锯齿，图片不失真
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
g.setColor(this.getBgColor());
g.fillRect(0, 0, width_, height_);
for (int i=0;i<cds.length();i++){
g.setColor(new Color((int) (Math.random() * 100), (int) (Math.random() * 100), (int) (Math.random() * 100)));
g.setFont(((Font) fonts.get((int) (Math.random() * fonts.size()))).deriveFont(this.getFace(), 25));
g.drawString(String.valueOf(cds.charAt(i)),22*i+5,35);
}
//画干扰线
this.drawLine(g, 3,200,50);
//画杂点
this.drawPoint(g, 30,width_,height_);
// 画个边框
//g.setColor(new Color((int) (Math.random() * 0x00FFFFFFF)));
//g.drawRect(1, 1, width_ - 2, height_ - 2);
g.dispose();
bi.flush();
return bi;
}
private String getMultiplication(int type) {
int a,b,v;
String ret=null;
if(type>this.DIVIDED){
a=this.getRandom(0, 99);
b=this.getRandom(0, 99);
}else{
a=this.getRandom(0, 9);
b=this.getRandom(0, 9);
}
//乘以
if(this.MULTIPLY==type){
v=a*b;
this.codes=String .valueOf(v);
ret=this.getArithmetic(a, b, type);
return ret;
}
//除以
if(this.DIVIDED==type){
//保证除数不为0
b=this.getRandom(1, 9);
v=a*b;
this.codes=String.valueOf(a);
ret=this.getArithmetic(v, b, type);
return ret;
}
//加上
if(this.PLUS==type){
v=a+b;
this.codes=String.valueOf(v);
ret=this.getArithmetic(a, b, type);
return ret;
}
//减去
if(this.SUBTRACT==type){
v=a+b;
this.codes=String.valueOf(a);
ret=this.getArithmetic(v, b, type);
return ret;
}
return ret;
}
private String getArithmetic(int a,int b,int type){
String str="";
switch (type) {
case MULTIPLY:
str=a+"×"+b+"＝？";
break;
case DIVIDED:
str=a+"÷"+b+"＝？";
break;
case PLUS:
str=a+"＋"+b+"＝？";
break;
case SUBTRACT:
str=a+"－"+b+"＝？";
break;
default:
str=a+"×"+b+"＝？";
break;
}
return str;
}
/**
* 得到随机常用汉字
* 从2500个常用汉字中选
* @date Jun 13, 2008 2:18:53 PM
* @author Fly(Fly@mmgg.net)
* @return
*/
private char getRandomChineseChar()
{
String 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u7f50";
return str.charAt(this.getRandom(0, str.length()-1));
}
/**
* 生成汉字验证码
*
* @date Jun 13, 2008 3:14:14 PM
* @author Fly(Fly@mmgg.net)
* @return
*/
private BufferedImage getImageOfChineseChar(){
BufferedImage bi = new BufferedImage(150, 50,BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
g.setColor(this.getBgColor());
g.fillRect(0, 0, 150, 50);
codes="";
for (int i = 0; i < 4; i++) {
//抗锯齿，图片不失真
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
String rands=String.valueOf(this.getRandomChineseChar());
g.setColor(new Color((int) (Math.random() * 200), 0, (int) (Math.random() * 200)));
g.setFont(((Font) fonts.get((int) (Math.random() * fonts.size()))).deriveFont(this.getFace(), 28));
g.drawString(rands,32*i+10,35);
codes+=rands;
}
//画干扰线
this.drawLine(g, 2,150,50);
//画杂点
this.drawPoint(g, 20,150,50);
// 画个边框
//g.setColor(new Color((int) (Math.random() * 0x00FFFFFFF)));
//g.drawRect(1, 1, 150 - 2, 50 - 2);
g.dispose();
bi.flush();
return bi;
}
/**
* 读取文件
*
* @date Jun 13, 2008 4:35:09 PM
* @author Fly(Fly@mmgg.net)
* @param filepath
* @param ext
* @return
* @throws FileNotFoundException
* @throws IOException
*/
private List readfile(String filepath, String ext){
List list = new ArrayList();
try {
File file = new File(filepath);
//如果不是字体路径那么就是字体文件
if (!file.isDirectory()) {
list.add(file.getPath());
} else if (file.isDirectory()) {
String[] filelist = file.list();
for (int i = 0; i < filelist.length; i++) {
File readfile = new File(filepath + "/" + filelist[i]);
if (!readfile.isDirectory()) {
int x = filelist[i].lastIndexOf('.');
if (filelist[i].substring(x + 1).toLowerCase().equals(ext.toLowerCase())) {
list.add(readfile.getPath());
}
} else if (readfile.isDirectory()) {
//不再判断子文件夹
continue;
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
/**
* 在图片画杂点
* @date Sep 12, 2008 4:41:46 PM
* @author Fly(Fly@mmgg.net)
* @param g
* @param num 杂点数目
* @param width 基于原点的最宽位置
* @param height 基于原点的最高位置
*/
private void drawPoint(Graphics2D g,int num,int width,int height){
Random random = new Random();
for (int i = 0; i < num; i++) {
int x = random.nextInt(width);
int y = random.nextInt(height);
g.setColor(new Color((int) (Math.random() * 0x00FFFFFFF)));
g.setStroke(getStroke());
g.drawLine(x, y, x, y);
}
}
/**
* 在图片上画直线
* @date Sep 12, 2008 4:43:10 PM
* @author Fly(Fly@mmgg.net)
* @param g
* @param num 线条数
* @param width 基于原点的最宽位置
* @param height 基于原点的最高位置
*/
private void drawLine(Graphics2D g,int num,int width,int height){
for (int i = 0; i < num; i++) {
g.setColor(new Color((int) (Math.random() * 0x00FFFFFFF)));
g.drawLine((int) (Math.random() * width), (int) (Math.random() * height),
(int) (Math.random() * width), (int) (Math.random() * height));
}
}
public static void main(String[] args) throws IOException {
//List ls=null;
RandomCodeImage c=new RandomCodeImage();
try {
FileOutputStream o=new FileOutputStream("c:\\a.jpg");
FileOutputStream a=new FileOutputStream("c:\\b.jpg");
FileOutputStream d=new FileOutputStream("c:\\c.jpg");
//ImageIO.write(rotateJ2D(c.getImageOfABC123(),30),"JPG", o);
System.out.println(c.drawImageOfABC123(o));
System.out.println(c.drawImageOfChineseChar(a));
System.out.println(c.drawImageOfMultiplicationFormula(d));
} catch (FileNotFoundException e) {
e.printStackTrace();
throw e;
}
//System.out.println(c.getImageOfABC123());
//System.out.println((int)(Math.random()*6+1));
}
}
