生成验证码
我们用Kaptcha 先导入依赖
然后进行配置,在KaptchaConfig里, 其中NoNoise是为了避免机器人破解
@Configuration
public class KaptchaConfig {
@Bean
public Producer kaptchaProducer() {
Properties properties = new Properties();
properties.setProperty("kaptcha.image.width", "100");
properties.setProperty("kaptcha.image.height", "40");
properties.setProperty("kaptcha.textproducer.font.size", "32");
properties.setProperty("kaptcha.textproducer.font.color", "0,0,0");
properties.setProperty("kaptcha.textproducer.char.string", "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
properties.setProperty("kaptcha.textproducer.char.length", "4");
properties.setProperty("kaptcha.noise.impl", "com.google.code.kaptcha.impl.NoNoise");
DefaultKaptcha kaptcha = new DefaultKaptcha();
Config config = new Config(properties);
kaptcha.setConfig(config);
return kaptcha;
}
}
然后在LoginController里编写
@RequestMapping(path = "/kaptcha", method = RequestMethod.GET)
public void getKaptcha(HttpServletResponse response, HttpSession session) {
// 生成验证码
String text = kaptchaProducer.createText();
BufferedImage image = kaptchaProducer.createImage(text);
// 将验证码存入session
session.setAttribute("kaptcha", text);
// 将图片输出给浏览器
response.setContentType("image/png");
try {
ServletOutputStream outputStream = response.getOutputStream();
ImageIO.write(image, "png", outputStream);
} catch (IOException e) {
logger.error("响应验证码失败:" + e.getMessage());
}
}
最后修改登录页面
刷新验证码
因为每次都要重新刷新激活码,所以把地址给了个名字叫kaptcha,然后用js编写refresh_kaptcha方法
CONTEXT_PATH是指在global.js申明的
var CONTEXT_PATH = "/community";



