JAVA识别图片验证码

Posted 2023-03-20

谁知道哪里有用JAVA写的识别图片验证码的程序啊，我在网上找了几个，但是都不行，赶集网的，58网的，那些识别不出来 ，我看了有个是用数字字模识别的，但是他只给出了0的字模谁有其它数字的字模啊，急，有的话我绝对重金。

参考技术A package com.he;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.image.*;
import javax.imageio.*;

public class CodeFact
extends HttpServlet
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException
//设置页面不缓存
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);

// 在内存中创建图象
int width = 60, height = 20;
BufferedImage image = new BufferedImage(width, height,
BufferedImage.TYPE_INT_RGB);

// 获取图形上下文
Graphics g = image.getGraphics();

//生成随机类
Random random = new Random();

// 设定背景色
g.setColor(getRandColor(200, 250));
g.fillRect(0, 0, width, height);

//设定字体
g.setFont(new Font("Times New Roman", Font.PLAIN, 18));

//画边框
g.setColor(new Color(33,66,99));
g.drawRect(0,0,width-1,height-1);

// 随机产生155条干扰线，使图象中的认证码不易被其它程序探测到
g.setColor(getRandColor(160, 200));
for (int i = 0; i < 155; i++)
int x = random.nextInt(width);
int y = random.nextInt(height);
int xl = random.nextInt(12);
int yl = random.nextInt(12);
g.drawLine(x, y, x + xl, y + yl);


// 取随机产生的认证码(4位数字)
String sRand = "";
for (int i = 0; i < 4; i++)
String rand = String.valueOf(random.nextInt(10));
sRand += rand;
// 将认证码显示到图象中
g.setColor(new Color(20 + random.nextInt(110), 20 + random.nextInt(110),
20 + random.nextInt(110))); //调用函数出来的颜色相同，可能是因为种子太接近，所以只能直接生成
g.drawString(rand, 13 * i + 6, 16);


// 将认证码存入SESSION
HttpSession session = request.getSession();
session.setAttribute("rand", sRand);

// 图象生效
g.dispose();

// 输出图象到页面
ImageIO.write(image, "JPEG", response.getOutputStream());


public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException
doGet(request, response);


//给定范围获得随机颜色
private Color getRandColor(int fc, int bc)
Random random = new Random();
if (fc > 255)
fc = 255;

if (bc > 255)
bc = 255;

int r = fc + random.nextInt(bc - fc);
int g = fc + random.nextInt(bc - fc);
int b = fc + random.nextInt(bc - fc);
return new Color(r, g, b);




你试试！！ 参考技术B 貌似你要进行图像识别
楼上好冲动