破解网站码验证，Java实现，不调用任何平台api接口

阅读原文时间：2023年07月10日阅读：2

package image.images;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.FileUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
/**
* 负责爬去验证码图片
* @author FMm
*
*/
public class HttpClientImage {

public static void main(String\[\] args) throws ClientProtocolException, IOException, InterruptedException {  
    // 创建httpClient实例  
    CloseableHttpClient httpClient = HttpClients.createDefault();  
    // url  
    String url = "http://con.monyun.cn:9960/aut\_checkCode.hts?iden=1422083454409442236&t=0.06292891333169814";  
    // 循环爬去20张验证码  
    for (int i = 0; i < 20; i++) {  
        // 休眠一下否则图片加载不出来，  
        Thread.sleep(2000);  
        // 创建请求  
        HttpGet httpGet = new HttpGet(url);  
        // 执行请求  
        CloseableHttpResponse response = httpClient.execute(httpGet);  
        // 获取实体对象  
        HttpEntity httpEntity = response.getEntity();  
        if (httpEntity != null) {  
            // 打印返回类型保证是图片类型  
            System.out.println("Content-Type:" + httpEntity.getContentType().getValue());  
            // 获取InputStream流  
            InputStream inputStream = httpEntity.getContent();  
            // 文件复制，common io 包下，需要 引入依赖  
            FileUtils.copyToFile(inputStream, new File("/Users/mac/Desktop/image/" + i + ".png"));  
        }  
    }  
    httpClient.close();  
}

}

package image.images;

import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.imageio.ImageIO;
import javax.imageio.ImageWriter;
import javax.imageio.stream.ImageOutputStream;
import javax.net.ssl.HttpsURLConnection;
/**
* 图片背景处理，提高识别度
* @author FMm
*
*/
public class ImageConverter {

private static List<File> fileList = new ArrayList<File>();

public static void main(String\[\] args) {

    // 图片所在的根目录 , 图片去除水印后的存储目录  
    // 支持批量去除图片水印，第一个参数为图片存在目录，第二为新建图片目录  
    convertAllImages("/Users/mac/Desktop/image/", "/Users/mac/Desktop/images/");  
}

private static void convertAllImages(String dir, String saveDir) {  
    File dirFile = new File(dir);  
    File saveDirFile = new File(saveDir);  
    dir = dirFile.getAbsolutePath();  
    saveDir = saveDirFile.getAbsolutePath();  
    loadImages(new File(dir));  
    for (File file : fileList) {  
        String filePath = file.getAbsolutePath();

        String dstPath = saveDir + filePath.substring(filePath.indexOf(dir) + dir.length(), filePath.length());  
        System.out.println("converting: " + filePath);  
        replaceColor(file.getAbsolutePath(), dstPath);  
    }  
}

public static void loadImages(File f) {  
    if (f != null) {  
        if (f.isDirectory()) {  
            File\[\] fileArray = f.listFiles();  
            if (fileArray != null) {  
                for (int i = 0; i < fileArray.length; i++) {  
                    loadImages(fileArray\[i\]);  
                }  
            }  
        } else {  
            String name = f.getName();  
            if (name.endsWith("png") || name.endsWith("jpg")) {  
                fileList.add(f);  
            }  
        }  
    }  
}

@SuppressWarnings("unused")  
private static void replaceFolderImages(String dir) {  
    File dirFile = new File(dir);  
    File\[\] files = dirFile.listFiles(new FileFilter() {  
        public boolean accept(File file) {  
            String name = file.getName();  
            if (name.endsWith("png") || name.endsWith("jpg")) {  
                return true;  
            }  
            return false;  
        }  
    });  
    for (File img : files) {  
        replaceColor(img.getAbsolutePath(), img.getAbsolutePath());  
    }  
}

private static void replaceColor(String srcFile, String dstFile) {  
    try {  
        Color color = new Color(255, 195, 195);  
        replaceImageColor(srcFile, dstFile, color, Color.WHITE);  
    } catch (IOException e) {  
        e.printStackTrace();  
    }  
}

public static void replaceImageColor(String file, String dstFile, Color srcColor, Color targetColor)  
        throws IOException {  
    URL http;  
    if (file.trim().startsWith("https")) {  
        http = new URL(file);  
        HttpsURLConnection conn = (HttpsURLConnection) http.openConnection();  
        conn.setRequestMethod("GET");  
    } else if (file.trim().startsWith("http")) {  
        http = new URL(file);  
        HttpURLConnection conn = (HttpURLConnection) http.openConnection();  
        conn.setRequestMethod("GET");  
    } else {  
        http = new File(file).toURI().toURL();  
    }  
    BufferedImage bi = ImageIO.read(http.openStream());  
    if (bi == null) {  
        return;  
    }

    Color wColor = new Color(255, 255, 255);// 白色

    for (int i = 0; i < bi.getWidth(); i++) {  
        for (int j = 0; j < bi.getHeight(); j++) {  
            System.out.println(i + "---" + j);  
            int color = bi.getRGB(i, j);  
            Color oriColor = new Color(color);  
            int red = oriColor.getRed();  
            int greed = oriColor.getGreen();  
            int blue = oriColor.getBlue();  
            // 以下if处是则改变图片颜色 将图片背景改变成纯白色，提高识别度  
            if (i < 4 | i > 100) {  
                bi.setRGB(i, j, wColor.getRGB());  
                //bi.setRGB（）方法是把对应的xy坐标的颜色改变成纯白色Color wColor = new Color(255, 255, 255);// 白色  
            }

            if (j < 4 | j > 35) {  
                bi.setRGB(i, j, wColor.getRGB());  
            }

            if (red < 107 && greed < 107 && blue < 107) {  
                bi.setRGB(i, j, wColor.getRGB());

            }  
            if ((red <= 255 && red > 200) & (greed <= 255 && greed >= 200) & blue <= 255 && blue >= 200) {  
                bi.setRGB(i, j, wColor.getRGB());  
            }  
        }  
    }  
    String type = file.substring(file.lastIndexOf(".") + 1, file.length());  
    Iterator<ImageWriter> it = ImageIO.getImageWritersByFormatName(type);  
    ImageWriter writer = it.next();  
    File f = new File(dstFile);  
    f.getParentFile().mkdirs();  
    ImageOutputStream ios = ImageIO.createImageOutputStream(f);  
    writer.setOutput(ios);  
    writer.write(bi);  
    bi.flush();  
    ios.flush();  
    ios.close();  
}

}

package image.images;

import java.io.File;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import net.sourceforge.tess4j.ITesseract;
import net.sourceforge.tess4j.Tesseract;
import net.sourceforge.tess4j.TesseractException;
/**
* 读取验证码并返回结构
* @author FMm
*
*/
public class ReadImage {

public static void main(String\[\] args) throws TesseractException {  
     ITesseract instance = new Tesseract();  
        //如果未将tessdata放在根目录下需要指定绝对路径，tessdata包下是tess4j训练语言包  
        instance.setDatapath("/Users/mac/Desktop/tessdata");  
        //如果需要识别英文之外的语种，需要指定识别语种，并且需要将对应的语言包放进项目中  
        instance.setLanguage("eng");  
        // 指定识别图片路径  
        File imgDir = new File("/Users/mac/Desktop/images/8.png");  
        long startTime = System.currentTimeMillis();  
        String ocrResult = instance.doOCR(imgDir);  
        System.out.println(ocrResult);  
        if(isStartWithNumber(ocrResult)) {  
            String start = ocrResult.substring(0,1);  
             String meg = ocrResult.substring(1,2);  
             String end = ocrResult.substring(2,3);  
            // 输出识别结果  
            System.out.println("OCR Result: \\n" + ocrResult + "\\n 耗时：" + (System.currentTimeMillis() - startTime) + "ms");  
            // 得出结果  
            System.out.println(start+meg+end+"="+(Integer.parseInt(start)+Integer.parseInt(end)));  
        } else {  
            System.out.println("仅支持数字");  
            return;  
        }

}

public static boolean isStartWithNumber(String str) {  
       Pattern pattern = Pattern.compile("\[0-9\]\*");  
       Matcher isNum = pattern.matcher(str.charAt(0)+"");  
       if (!isNum.matches()) {  
           return false;  
       }  
       return true;  
    }

}

maven文件

http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0

<groupId>image</groupId>  
<artifactId>images</artifactId>  
<version>0.0.1-SNAPSHOT</version>  
<packaging>jar</packaging>

<name>images</name>  
<url>http://maven.apache.org</url>

<properties>  
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>  
</properties>

<dependencies>  
    <dependency>  
        <groupId>org.apache.httpcomponents</groupId>  
        <artifactId>httpclient</artifactId>  
        <version>4.5.8</version>  
    </dependency>  
    <dependency>  
        <groupId>org.jsoup</groupId>  
        <artifactId>jsoup</artifactId>  
        <version>1.12.1</version>  
    </dependency>  
    <dependency>  
        <groupId>commons-io</groupId>  
        <artifactId>commons-io</artifactId>  
        <version>2.5</version>  
    </dependency>  
    <dependency>  
        <groupId>com.alibaba</groupId>  
        <artifactId>fastjson</artifactId>  
        <version>1.2.47</version>  
    </dependency>  
    <dependency>  
        <groupId>junit</groupId>  
        <artifactId>junit</artifactId>  
        <version>3.8.1</version>  
        <scope>test</scope>  
    </dependency>  
    <dependency>  
        <groupId>net.sourceforge.tess4j</groupId>  
        <artifactId>tess4j</artifactId>  
        <version>4.4.1</version>  
    </dependency>  
</dependencies>

不是maven项目所需jar

p.p1 { margin: 0; font: 12px Menlo; color: rgba(66, 66, 66, 1) }

org/apache/httpcomponents/httpclient/4.5.8/httpclient-4.5.8.jar

org/apache/httpcomponents/httpcore/4.4.11/httpcore-4.4.11.jar

commons-logging/commons-logging/1.2/commons-logging-1.2.jar

commons-codec/commons-codec/1.11/commons-codec-1.11.jar

org/jsoup/jsoup/1.12.1/jsoup-1.12.1.jar

commons-io/commons-io/2.5/commons-io-2.5.jar

com/alibaba/fastjson/1.2.47/fastjson-1.2.47.jar

junit/junit/3.8.1/junit-3.8.1.jar

net/sourceforge/tess4j/tess4j/4.4.1/tess4j-4.4.1.jar

net/java/dev/jna/jna/5.4.0/jna-5.4.0.jar