Selenium/Java读取动态页面图片验证码，tesseract转换为文本

转载2016-05-26 11:26:07

Tesseract-OCR的下载安装：

http://www.51testing.com/html/14/87714-3693118.html​

 

selenium如何识别验证码：

http://www.bubuko.com/infodetail-973335.html

​验证码图片保存及转换为文本过程

1、保存动态页面中的图片文件到本地；

​ download(URL地址,"code.png");

public void download(String strUrl,String strPath){

     FileOutputStream outStream =null;       

  try {

URL url = newURL(strUrl);            //打开链接            

HttpURLConnection conn = (HttpURLConnection)url.openConnection();     conn.setConnectTimeout(5 *1000);            //通过输入流获取图片数据       InputStream inStream =conn.getInputStream();            //得到图片的二进制数据，以二进制封装得到数据，具有通用性            

byte[] data =readInputStream(inStream);           //new一个文件对象用来保存图片，默认保存当前工程根目录            

File imageFile = newFile(strPath);            //创建输出流             

outStream = newFileOutputStream(imageFile);            //写入数据            outStream.write(data);            //关闭输出流             

outStream.close();         

} catch (Exception e) {

           e.printStackTrace();

        } finally {

           try {  

             if (outStream != null) { 

                outStream.close();

               }  

          } catch (IOException e) { 

             e.printStackTrace(); 

          } 

   }

}

​

​

2、java运行tesseract批量处理bat文件​，产生TXT文件保存到本地；

​     String cmd = "cmd /c startG:\\uxin1\\selenium_xin\\code.bat";

     Thread.sleep(2000);

 

     try {

      Runtime.getRuntime().exec(cmd);   }

catch (IOException e) {

 

      // TODO Auto-generated catch block

 

     e.printStackTrace();

 

        } 

    String filepath="G:/uxin1/selenium_xin/code.txt";

 

3、读取TXT文件​；

 //读取图片转换的文本的内容

  public static void readTextFile(StringfilePath) {

     try {

        String encoding = "GBK";

        File file = new File(filePath);

         if (file.isFile() && file.exists()){ // 判断文件是否存在

             InputStreamReader read = new InputStreamReader(

             new FileInputStream(file), encoding);//考虑到编码格式             BufferedReader bufferedReader = new BufferedReader(read);

            String lineTxt = null; 

           while ((lineTxt = bufferedReader.readLine()) != null){                 System.out.println(lineTxt);

            }

            read.close();

         } else {

             System.out.println("----找不到指定的文件"); 

       }     } catch (Exception e) {

        System.out.println("读取文件内容出错");

         e.printStackTrace();

    }

}

​以上！成功的图片如下，一个字，爽！

保存验证码图片，执行bat文件，读取文本文件

允许成功！