2、功能講解javascript
(1)驗證碼配置文件html
打開KaptchaConfig.java前端
@Component public class KaptchaConfig { @Bean public DefaultKaptcha getDefaultKaptcha() { com.google.code.kaptcha.impl.DefaultKaptcha defaultKaptcha = new com.google.code.kaptcha.impl.DefaultKaptcha(); Properties properties = new Properties(); // 圖片邊框 properties.setProperty("kaptcha.border", "no"); // 邊框顏色 properties.setProperty("kaptcha.border.color", "black"); //邊框厚度 properties.setProperty("kaptcha.border.thickness", "1"); // 圖片寬 properties.setProperty("kaptcha.image.width", "200"); // 圖片高 properties.setProperty("kaptcha.image.height", "50"); //圖片實現類 properties.setProperty("kaptcha.producer.impl", "com.google.code.kaptcha.impl.DefaultKaptcha"); //文本實現類 properties.setProperty("kaptcha.textproducer.impl", "com.google.code.kaptcha.text.impl.DefaultTextCreator"); //文本集合,驗證碼值今後集合中獲取 properties.setProperty("kaptcha.textproducer.char.string", "01234567890"); //驗證碼長度 properties.setProperty("kaptcha.textproducer.char.length", "4"); //字體 properties.setProperty("kaptcha.textproducer.font.names", "宋體"); //字體顏色 properties.setProperty("kaptcha.textproducer.font.color", "black"); //文字間隔 properties.setProperty("kaptcha.textproducer.char.space", "5"); //干擾實現類 properties.setProperty("kaptcha.noise.impl", "com.google.code.kaptcha.impl.DefaultNoise"); //干擾顏色 properties.setProperty("kaptcha.noise.color", "blue"); //干擾圖片樣式 properties.setProperty("kaptcha.obscurificator.impl", "com.google.code.kaptcha.impl.WaterRipple"); //背景實現類 properties.setProperty("kaptcha.background.impl", "com.google.code.kaptcha.impl.DefaultBackground"); //背景顏色漸變,結束顏色 properties.setProperty("kaptcha.background.clear.to", "white"); //文字渲染器 properties.setProperty("kaptcha.word.impl", "com.google.code.kaptcha.text.impl.DefaultWordRenderer"); Config config = new Config(properties); defaultKaptcha.setConfig(config); return defaultKaptcha; } }
詳細配置說明:https://blog.csdn.net/elephantboy/article/details/52795309
java
(2)生成驗證碼方法jquery
打開CommonUtil.java,這是一個公共方法web
public class CommonUtil { /** * 生成驗證碼圖片 * @param request 設置session * @param response 轉成圖片 * @param captchaProducer 生成圖片方法類 * @param validateSessionKey session名稱 * @throws Exception */ public static void validateCode(HttpServletRequest request, HttpServletResponse response, DefaultKaptcha captchaProducer, String validateSessionKey) throws Exception{ // Set to expire far in the past. response.setDateHeader("Expires", 0); // Set standard HTTP/1.1 no-cache headers. response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate"); // Set IE extended HTTP/1.1 no-cache headers (use addHeader). response.addHeader("Cache-Control", "post-check=0, pre-check=0"); // Set standard HTTP/1.0 no-cache header. response.setHeader("Pragma", "no-cache"); // return a jpeg response.setContentType("image/jpeg"); // create the text for the image String capText = captchaProducer.createText(); // store the text in the session request.getSession().setAttribute(validateSessionKey, capText); // create the image with the text BufferedImage bi = captchaProducer.createImage(capText); ServletOutputStream out = response.getOutputStream(); // write the data out ImageIO.write(bi, "jpg", out); try { out.flush(); } finally { out.close(); } } }
(3)驗證碼控制類ajax
打開MainController.javaspring
@Controller public class MainController { @Resource private DefaultKaptcha captchaProducer; @RequestMapping(value = {"/"}) public String index() { return "/index"; } /** * 登陸驗證碼SessionKey */ public static final String LOGIN_VALIDATE_CODE = "login_validate_code"; /** * 登陸驗證碼圖片 */ @RequestMapping(value = {"/loginValidateCode"}) public void loginValidateCode(HttpServletRequest request, HttpServletResponse response) throws Exception{ CommonUtil.validateCode(request,response,captchaProducer,LOGIN_VALIDATE_CODE); } /** * 檢查驗證碼是否正確 */ @RequestMapping("/checkLoginValidateCode") @ResponseBody public HashMap checkLoginValidateCode(HttpServletRequest request,@RequestParam("validateCode")String validateCode) { String loginValidateCode = request.getSession().getAttribute(LOGIN_VALIDATE_CODE).toString(); HashMap<String,Object> map = new HashMap<String,Object>(); if(loginValidateCode == null){ map.put("status",null);//驗證碼過時 }else if(loginValidateCode.equals(validateCode)){ map.put("status",true);//驗證碼正確 }else if(!loginValidateCode.equals(validateCode)){ map.put("status",false);//驗證碼不正確 } map.put("code",200); return map; } }
(4)前端頁面json
<!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>SpringBoot 生成驗證碼</title> <script type="text/javascript" src="/js/jquery/jquery-3.3.1.min.js"></script> <script type='text/javascript'> $(function () { $("#validateCode").keyup(function(){ checkLoginValidateCode($(this).val()); }); }); function uploadLoginValidateCode() { $("#loginValidateCode").attr("src","/loginValidateCode?random="+new Date().getMilliseconds()); } function checkLoginValidateCode(validateCode) { var error = $("#validateCode").parent().next(); if(validateCode != null && validateCode != ""){ $.ajax({ type: "POST", async:false, url: "/checkLoginValidateCode?validateCode="+validateCode, success : function(json) { if(json != null && json.code == 200 && json.status != null) { if (json.status == true) { error.html("恭喜你驗證碼,正確!!!!!"); } else if(json.status == false){ error.html("驗證碼錯誤,請從新輸入"); }else{ error.html("驗證碼過時,請從新輸入"); uploadLoginValidateCode(); } } return false; }, error:function(XMLHttpRequest,textStatus,errorThrown){ alert("服務器錯誤!狀態碼:"+XMLHttpRequest.status); // 狀態 console.log(XMLHttpRequest.readyState); // 錯誤信息 console.log(textStatus); return false; } }); }else{ error.html("請輸入驗證碼!"); } } </script> </head> <body> 驗證碼: <img id="loginValidateCode" height="40" width="150" style="cursor: pointer;" src="/loginValidateCode" onclick="uploadLoginValidateCode();"> <p> 你輸入的內容:<input type="text" id="validateCode" name="validateCode" /> </p> <p style="color: red"></p> </body> </html>
3、運行springboot
吐槽環節:百度的搜java 驗證碼,太坑爹了,各類各樣複雜,很是不通用,還有一些不能運行的。忍不了忍不了,本身整合一個,最後找到google kaptcha 工具 vary good !!!
謝謝你們觀看~