java 验证码之 patchca

怼烎@ 2022-08-03 05:15 191阅读 0赞

patchca

jar下载地址：[http://code.google.com/p/patchca/downloads/list][http_code.google.com_p_patchca_downloads_list]  
源码下载地址：[https://github.com/pusuo/patchca][https_github.com_pusuo_patchca]  
测试结果：较理想  
一、测试  
测试后查看项目的根目录

public static void main(String[] args) throws IOException {
    
         ConfigurableCaptchaService cs = new ConfigurableCaptchaService();
        cs.setColorFactory(new SingleColorFactory(new Color(25, 60, 170)));
        cs.setFilterFactory(new CurvesRippleFilterFactory(cs.getColorFactory()));
    
        FileOutputStream fos = new FileOutputStream("patcha_demo.png");
        String validate_code = EncoderHelper.getChallangeAndWriteImage(cs, "png", fos);
        System.out.println("*****************"+validate_code+"*****************");
        fos.close();
    }

二、springMVC 的使用

/**
     * 获取验证码
     * 
     * @param request
     * @param response
     * @throws IOException
     */
    @RequestMapping(value = "/init/InitRegValCode", produces = "text/plain;charset=UTF-8")
    @ResponseBody
    public void InitRegValCode(HttpServletRequest request,
            HttpServletResponse response) throws IOException {
            ConfigurableCaptchaService cs = new ConfigurableCaptchaService();
        cs.setColorFactory(new SingleColorFactory(new Color(25, 60, 170)));
        cs.setFilterFactory(new CurvesRippleFilterFactory(cs.getColorFactory()));
        RandomFontFactory ff = new RandomFontFactory();
        ff.setMinSize(30);
        ff.setMaxSize(30);
        RandomWordFactory rwf = new RandomWordFactory();
        rwf.setMinLength(4);
        rwf.setMaxLength(4);
        cs.setWordFactory(rwf);
        cs.setFontFactory(ff);
        cs.setHeight(30);
        cs.setWidth(140);
    
        try {
    
            ServletOutputStream stream = response.getOutputStream();
            String validate_code = EncoderHelper.getChallangeAndWriteImage(cs,
                    "png", stream);
    
            request.getSession().setAttribute("REG_VAL_CODE", validate_code);
    
            stream.flush();
            stream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

[http_code.google.com_p_patchca_downloads_list]: http://code.google.com/p/patchca/downloads/list
[https_github.com_pusuo_patchca]: https://github.com/pusuo/patchca