Spring-VCフレームワークを使用した認証コードの生成
12291 ワード
<bean id="captchaProducer" class="com.google.code.kaptcha.impl.DefaultKaptcha">
<property name="config">
<bean class="com.google.code.kaptcha.util.Config">
<constructor-arg>
<props>
<prop key="kaptcha.border">yesprop>
<prop key="kaptcha.border.color">105,179,90prop>
<prop key="kaptcha.textproducer.font.color">blueprop>
<prop key="kaptcha.image.width">100prop>
<prop key="kaptcha.image.height">60prop>
<prop key="kaptcha.textproducer.font.size">45prop>
<prop key="kaptcha.session.key">codeprop>
<prop key="kaptcha.textproducer.char.length">4prop>
<prop key="kaptcha.textproducer.font.names"> , , prop>
props>
constructor-arg>
bean>
property>
bean>
3.htmlコード
class="checkcode">
type="text" id="codetext" placeholder=" " maxlength="4"
class="login_txtbx">"vcode" type="image" alt=" "
src="captcha-image.do" οnclick="changeCode()">
4.jsスクリプト
/**
*
*/
function changeCode() {
$("#vcode").attr('src',
'captcha-image.do?' + Math.floor(Math.random() * 100));
}
5.コントロール層
package com.xinrui.hospital.action;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.annotation.Resource;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.google.code.kaptcha.Producer;
import com.xinrui.hospital.service.impl.AdminServiceImpl;
import com.xinrui.hospital.util.Constants;
import com.xinrui.hospital.util.PrintWriterUtil;
/**
*
* @ClassName: LoginController
* @Description:
* @author
* @date 2016 3 17 11:08:51
*
*/
@Controller
public class LoginController {
/**
*
*/
@Autowired
private Producer captchaProducer = null;
/**
*
* @Title: getKaptchaImage
* @Description:
* @param @param request
* @param @param response
* @param @throws Exception
* @return void
* @throws
*/
@RequestMapping(value = "captcha-image")
public void getKaptchaImage(HttpServletRequest request,
HttpServletResponse response) throws Exception {
HttpSession session = request.getSession();
//
response.setDateHeader("Expires", 0);
response.setHeader("Cache-Control",
"no-store, no-cache, must-revalidate");
response.addHeader("Cache-Control", "post-check=0, pre-check=0");
response.setHeader("Pragma", "no-cache");
response.setContentType("image/jpeg");
String capText = captchaProducer.createText();
session.setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
BufferedImage bi = captchaProducer.createImage(capText);
ServletOutputStream out = response.getOutputStream();
//
ImageIO.write(bi, "jpg", out);
try {
out.flush();
} finally {
out.close();
}
}
}