{"id":426,"date":"2023-04-22T23:47:06","date_gmt":"2022-12-03T11:44:51","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/java-web%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%abgoogle-recaptcha%e3%82%92%e7%b5%b1%e5%90%88%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2025-07-31T23:30:24","modified_gmt":"2025-07-31T14:30:24","slug":"java-web%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%abgoogle-recaptcha%e3%82%92%e7%b5%b1%e5%90%88%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java-web%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%abgoogle-recaptcha%e3%82%92%e7%b5%b1%e5%90%88%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"Java Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bGoogle reCAPTCHA\u3092\u7d71\u5408\u306e\u65b9\u6cd5"},"content":{"rendered":"

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reCAPTCHA\u3092\u898b\u305f\u3068\u304d\u306f\u3001\u3059\u3050\u306b\u6c17\u306b\u5165\u308a\u307e\u3057\u305f\u3002\u306a\u305c\u306a\u3089\u3001\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3060\u3051\u3067\u3001\u3042\u306a\u305f\u304c\u4eba\u9593\u304b\u30ed\u30dc\u30c3\u30c8\u304b\u3092\u5224\u65ad\u3057\u3066\u304f\u308c\u308b\u304b\u3089\u3067\u3059\u3002Google\u306f\u305d\u308c\u3092No CAPTCHA reCAPTCHA\u4f53\u9a13\u3068\u547c\u3073\u3001\u9032\u5316\u3057\u305f\u30ea\u30b9\u30af\u5206\u6790\u30a8\u30f3\u30b8\u30f3\u3068\u9069\u5fdc\u578bCAPTCHA\u3092\u4f7f\u3063\u3066\u3001\u81ea\u52d5\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306b\u3088\u308b\u60aa\u610f\u306e\u3042\u308b\u6d3b\u52d5\u3092\u6291\u5236\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u304c\u4eca\u56de\u306e\u6295\u7a3f\u306e\u57fa\u76e4\u3068\u306a\u308a\u3001Java\u30d9\u30fc\u30b9\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067Google reCAPTCHA\u3092\u3069\u306e\u3088\u3046\u306b\u5229\u7528\u3059\u308b\u304b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u9032\u3081\u308b\u524d\u306b\u3001\u307e\u305aGoogle reCAPTCHA\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u30b5\u30a4\u30f3\u30a2\u30c3\u30d7\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u306breCAPTCHA\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u30b5\u30a4\u30c8\u30ad\u30fc\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u5fdc\u7b54\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u3001\u79d8\u5bc6\u30ad\u30fc\u3082\u53d6\u5f97\u3057\u307e\u3059\u3002\u30c6\u30b9\u30c8\u30b5\u30a4\u30c8\u3092\u767b\u9332\u3057\u305f\u5f8c\u3001\u4ee5\u4e0b\u306e\u30ad\u30fc\u3092\u53d6\u5f97\u3057\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u5229\u7528\u3057\u307e\u3059\u3002\u30b5\u30a4\u30f3\u30a2\u30c3\u30d7\u6642\u306b\u306f\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u30ad\u30fc\u306f\u305d\u306e\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u307f\u3067\u6a5f\u80fd\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30ad\u30fc\u306f\u5e38\u306b\u30ed\u30fc\u30ab\u30eb\u30db\u30b9\u30c8\u3067\u6a5f\u80fd\u3059\u308b\u305f\u3081\u3001\u81ea\u5206\u306e\u30ed\u30fc\u30ab\u30eb\u30b5\u30fc\u30d0\u30fc\u3067\u7c21\u5358\u306b\u30c6\u30b9\u30c8\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3067\u6e96\u5099\u304c\u6574\u3063\u305f\u306e\u3067\u3001\u6b21\u306b\u4f8b\u984c\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u79fb\u308a\u307e\u3057\u3087\u3046\u3002\u30ed\u30b0\u30a4\u30f3\u30da\u30fc\u30b8\u304c\u3042\u308a\u3001\u5229\u7528\u8005\u306f\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001reCaptcha\u3082\u89e3\u304b\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u30d5\u30a9\u30fc\u30e0\u304c\u9001\u4fe1\u3055\u308c\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u691c\u8a3c\u3055\u308c\u3001\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u5fdc\u7b54\u306f\u79d8\u5bc6\u30ad\u30fc\u3068\u4e00\u7dd2\u306bGoogle reCAPTCHA\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u3001\u5fdc\u7b54\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002Google reCAPTCHA\u304b\u3089\u306e\u5fdc\u7b54\u306f\u3001\u6210\u529f\u306e\u771f\u507d\u5024\u3092\u6301\u3064JSON\u3067\u3059\u3002\u691c\u8a3c\u304c\u6210\u529f\u3059\u308b\u3068\u3001\u5024\u306ftrue\u306b\u306a\u308a\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306ffalse\u306b\u306a\u308a\u307e\u3059\u3002\u79c1\u306fJava JSON\u51e6\u7406API\u3092\u4f7f\u7528\u3057\u3066\u5fdc\u7b54JSON\u3092\u89e3\u6790\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u753b\u50cf\u306f\u3001Eclipse\u3067\u306e\u6700\u7d42\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u571f\u53f0\u3092\u5f97\u308b\u305f\u3081\u306b\u306f\u3001Eclipse\u3067\u300c\u52d5\u7684Web\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u300d\u3092\u4f5c\u6210\u3057\u3001\u305d\u308c\u3092Maven\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3059\u308b\u3060\u3051\u3067\u3059\u3002JSON API\u306e\u305f\u3081\u306epom.xml\u30d5\u30a1\u30a4\u30eb\u306b\u4ee5\u4e0b\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n

<dependency>\r\n\t<groupId>org.glassfish<\/groupId>\r\n\t<artifactId>javax.json<\/artifactId>\r\n\t<version>1.0.2<\/version>\r\n<\/dependency>\r\n<\/code><\/pre>\n
\u4e00\u3064\u305a\u3064\u8981\u7d20\u3092\u8abf\u3079\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
Google reCAPTCHA\u3092\u4f7f\u7528\u3057\u3066\u30da\u30fc\u30b8\u3092\u8868\u793a<\/h3>\n
\u4ee5\u4e0b\u306f\u79c1\u305f\u3061\u306e\u30ed\u30b0\u30a4\u30f3HTML\u30da\u30fc\u30b8\u306e\u30b3\u30fc\u30c9\u3067\u3059\u3002login.html<\/p>\n
<!DOCTYPE html>\r\n<html>\r\n<head>\r\n<meta charset=\"US-ASCII\">\r\n<title>Login Page<\/title>\r\n<script src=\"https:\/\/www.google.com\/recaptcha\/api.js\"><\/script>\r\n<\/head>\r\n<body>\r\n\r\n\t<form action=\"LoginServlet\" method=\"post\">\r\n\r\n\t\tUsername: <input type=\"text\" name=\"user\"> <br> Password:\r\n\t\t<input type=\"password\" name=\"pwd\"> <br>\r\n\t\t<div class=\"g-recaptcha\"\r\n\t\t\tdata-sitekey=\"6LdMAgMTAAAAAGYY5PEQeW7b3L3tqACmUcU6alQf\"><\/div>\r\n\t\t<br> <input type=\"submit\" value=\"Login\">\r\n\t<\/form>\r\n<\/body>\r\n<\/html>\r\n<\/code><\/pre>\n
HTML\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306bGoogle reCaptcha JS\u30d5\u30a1\u30a4\u30eb\u3092\u8ffd\u52a0\u3057\u3001<\/p>\n
\u5185\u306b<\/p>\n
<\/div>\n
\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001reCaptcha\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3092\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3060\u3051\u3067\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u306f\u3053\u308c\u307b\u3069\u7c21\u5358\u3067\u3059\uff01\u30e6\u30fc\u30b6\u30fc\u304c\u8a8d\u8a3c\u3055\u308c\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u6210\u529f\u30da\u30fc\u30b8\u306b\u9001\u3089\u308c\u307e\u3059\u3002LoginSuccess.jsp<\/p>\n
<%@ page language=\"java\" contentType=\"text\/html; charset=US-ASCII\"\r\n    pageEncoding=\"US-ASCII\"%>\r\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"https:\/\/www.w3.org\/TR\/html4\/loose.dtd\">\r\n<html>\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text\/html; charset=US-ASCII\">\r\n<title>Login Success Page<\/title>\r\n<\/head>\r\n<body>\r\n<h3>Hi Pankaj, Login successful.<\/h3>\r\n<a href=\"login.html\">Login Page<\/a>\r\n<\/body>\r\n<\/html>\r\n<\/code><\/pre>\n
\u30ed\u30b0\u30a4\u30f3\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8<\/h3>\n
\u4ee5\u4e0b\u306f\u79c1\u305f\u3061\u306e\u30b7\u30f3\u30d7\u30eb\u306aLoginServlet.java\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u30b3\u30fc\u30c9\u3067\u3059\u3002\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u691c\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002\u7c21\u5358\u306e\u305f\u3081\u306b\u3001\u3053\u308c\u3089\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u30b3\u30fc\u30c9\u81ea\u4f53\u306bWebInitParam\u3068\u3057\u3066\u57cb\u3081\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6ce8\u91c8\u3092\u4f7f\u7528\u3059\u308b\u306b\u306fServlet 3\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001Tomcat-7\u307e\u305f\u306f\u5f8c\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
package com.scdev.servlet;\r\n\r\nimport java.io.IOException;\r\nimport java.io.PrintWriter;\r\n\r\nimport javax.servlet.RequestDispatcher;\r\nimport javax.servlet.ServletException;\r\nimport javax.servlet.annotation.WebInitParam;\r\nimport javax.servlet.annotation.WebServlet;\r\nimport javax.servlet.http.HttpServlet;\r\nimport javax.servlet.http.HttpServletRequest;\r\nimport javax.servlet.http.HttpServletResponse;\r\n\r\nimport com.scdev.utils.VerifyRecaptcha;\r\n\r\n\/**\r\n * Servlet implementation class LoginServlet\r\n *\/\r\n@WebServlet(description = \"Login Servlet\", urlPatterns = { \"\/LoginServlet\" }, initParams = {\r\n\t\t@WebInitParam(name = \"user\", value = \"Pankaj\"),\r\n\t\t@WebInitParam(name = \"password\", value = \"scdev\") })\r\npublic class LoginServlet extends HttpServlet {\r\n\r\n\tprivate static final long serialVersionUID = -6506682026701304964L;\r\n\r\n\tprotected void doPost(HttpServletRequest request,\r\n\t\t\tHttpServletResponse response) throws ServletException, IOException {\r\n\r\n\t\t\/\/ get request parameters for userID and password\r\n\t\tString user = request.getParameter(\"user\");\r\n\t\tString pwd = request.getParameter(\"pwd\");\r\n\t\t\/\/ get reCAPTCHA request param\r\n\t\tString gRecaptchaResponse = request\r\n\t\t\t\t.getParameter(\"g-recaptcha-response\");\r\n\t\tSystem.out.println(gRecaptchaResponse);\r\n\t\tboolean verify = VerifyRecaptcha.verify(gRecaptchaResponse);\r\n\r\n\t\t\/\/ get servlet config init params\r\n\t\tString userID = getServletConfig().getInitParameter(\"user\");\r\n\t\tString password = getServletConfig().getInitParameter(\"password\");\r\n\t\t\/\/ logging example\r\n\t\tSystem.out.println(\"User=\" + user + \"::password=\" + pwd + \"::Captcha Verify\"+verify);\r\n\r\n\t\tif (userID.equals(user) && password.equals(pwd) && verify) {\r\n\t\t\tresponse.sendRedirect(\"LoginSuccess.jsp\");\r\n\t\t} else {\r\n\t\t\tRequestDispatcher rd = getServletContext().getRequestDispatcher(\r\n\t\t\t\t\t\"\/login.html\");\r\n\t\t\tPrintWriter out = response.getWriter();\r\n\t\t\tif (verify) {\r\n\t\t\t\tout.println(\"<font color=red>Either user name or password is wrong.<\/font>\");\r\n\t\t\t} else {\r\n\t\t\t\tout.println(\"<font color=red>You missed the Captcha.<\/font>\");\r\n\t\t\t}\r\n\t\t\trd.include(request, response);\r\n\t\t}\r\n\t}\r\n}\r\n<\/code><\/pre>\n
\u30ad\u30e3\u30d7\u30c1\u30e3\u4ed8\u304d\u306e\u30d5\u30a9\u30fc\u30e0\u304c\u9001\u4fe1\u3055\u308c\u308b\u3068\u3001\u78ba\u8a8d\u306e\u305f\u3081\u306b\u9001\u4fe1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u300cg-recaptcha-response\u300d\u3068\u3044\u3046\u8981\u6c42\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u6700\u5f8c\u306e\u90e8\u5206\u306f\u3001\u78ba\u8a8d\u306e\u305f\u3081\u306bPOST\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u3001JSON\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u89e3\u6790\u3057\u3066\u9069\u5207\u306b\u8fd4\u3059\u305f\u3081\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u3067\u3059\u3002<\/p>\n
package com.scdev.utils;\r\n\r\nimport java.io.BufferedReader;\r\nimport java.io.DataOutputStream;\r\nimport java.io.IOException;\r\nimport java.io.InputStreamReader;\r\nimport java.io.StringReader;\r\nimport java.net.URL;\r\n\r\nimport javax.json.Json;\r\nimport javax.json.JsonObject;\r\nimport javax.json.JsonReader;\r\nimport javax.net.ssl.HttpsURLConnection;\r\n\r\npublic class VerifyRecaptcha {\r\n\r\n\tpublic static final String url = \"https:\/\/www.google.com\/recaptcha\/api\/siteverify\";\r\n\tpublic static final String secret = \"6LdMAgMTAAAAAJOAqKgjWe9DUujd2iyTmzjXilM7\";\r\n\tprivate final static String USER_AGENT = \"Mozilla\/5.0\";\r\n\r\n\tpublic static boolean verify(String gRecaptchaResponse) throws IOException {\r\n\t\tif (gRecaptchaResponse == null || \"\".equals(gRecaptchaResponse)) {\r\n\t\t\treturn false;\r\n\t\t}\r\n\t\t\r\n\t\ttry{\r\n\t\tURL obj = new URL(url);\r\n\t\tHttpsURLConnection con = (HttpsURLConnection) obj.openConnection();\r\n\r\n\t\t\/\/ add reuqest header\r\n\t\tcon.setRequestMethod(\"POST\");\r\n\t\tcon.setRequestProperty(\"User-Agent\", USER_AGENT);\r\n\t\tcon.setRequestProperty(\"Accept-Language\", \"en-US,en;q=0.5\");\r\n\r\n\t\tString postParams = \"secret=\" + secret + \"&response=\"\r\n\t\t\t\t+ gRecaptchaResponse;\r\n\r\n\t\t\/\/ Send post request\r\n\t\tcon.setDoOutput(true);\r\n\t\tDataOutputStream wr = new DataOutputStream(con.getOutputStream());\r\n\t\twr.writeBytes(postParams);\r\n\t\twr.flush();\r\n\t\twr.close();\r\n\r\n\t\tint responseCode = con.getResponseCode();\r\n\t\tSystem.out.println(\"\\nSending 'POST' request to URL : \" + url);\r\n\t\tSystem.out.println(\"Post parameters : \" + postParams);\r\n\t\tSystem.out.println(\"Response Code : \" + responseCode);\r\n\r\n\t\tBufferedReader in = new BufferedReader(new InputStreamReader(\r\n\t\t\t\tcon.getInputStream()));\r\n\t\tString inputLine;\r\n\t\tStringBuffer response = new StringBuffer();\r\n\r\n\t\twhile ((inputLine = in.readLine()) != null) {\r\n\t\t\tresponse.append(inputLine);\r\n\t\t}\r\n\t\tin.close();\r\n\r\n\t\t\/\/ print result\r\n\t\tSystem.out.println(response.toString());\r\n\t\t\r\n\t\t\/\/parse JSON response and return 'success' value\r\n\t\tJsonReader jsonReader = Json.createReader(new StringReader(response.toString()));\r\n\t\tJsonObject jsonObject = jsonReader.readObject();\r\n\t\tjsonReader.close();\r\n\t\t\r\n\t\treturn jsonObject.getBoolean(\"success\");\r\n\t\t}catch(Exception e){\r\n\t\t\te.printStackTrace();\r\n\t\t\treturn false;\r\n\t\t}\r\n\t}\r\n}\r\n<\/code><\/pre>\n
\u4ee5\u4e0a\u3067\u3059\u3002\u79c1\u305f\u3061\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u6e96\u5099\u304c\u6574\u3063\u3066\u304a\u308a\u3001\u4ee5\u4e0b\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u5165\u529b\u306b\u57fa\u3065\u3044\u3066\u5f97\u3089\u308c\u305f\u5fdc\u7b54\u30da\u30fc\u30b8\u3067\u3059\u3002Google Recaptcha\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306e\u3042\u308b\u30ed\u30b0\u30a4\u30f3\u30da\u30fc\u30b8\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067Google Recaptcha\u304c\u691c\u8a3c\u3055\u308c\u305f\u5fdc\u7b54\u30da\u30fc\u30b8\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u306eGoogle Recaptcha\u306e\u691c\u8a3c\u5f8c\u306e\u5fdc\u7b54\u30da\u30fc\u30b8\u3001Recaptcha\u304c\u89e3\u304b\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u306e\u5fdc\u7b54\u30da\u30fc\u30b8\u3001Recaptcha\u306f\u89e3\u304b\u308c\u307e\u3057\u305f\u304c\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306e\u5fdc\u7b54\u30da\u30fc\u30b8\u3067\u3059\u3002\u8a73\u3057\u304f\u5b66\u3076\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30ea\u30f3\u30af\u304b\u3089\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u8a66\u3057\u3066\u307f\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n
Google reCAPTCHA\u306eJava\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/form>\n","protected":false},"excerpt":{"rendered":"
\u79c1\u306f\u5143\u3005\u3001\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u597d\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u306a\u305c\u306a\u3089\u3001\u5229\u7528\u8005\u306b\u306f\u6587\u5b57\u3092\u7406\u89e3\u3057\u3001\u81ea\u5206\u304c\u4eba\u9593\u3067\u3042\u308b\u3053\u3068\u3092\u8a3c\u660e\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u8ca0\u62c5\u304c\u3042\u3063\u305f\u304b\u3089\u3067\u3059\u3002\u3057\u304b\u3057\u6700\u8fd1\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067\u65b0\u3057\u3044Google reCAPTCHA\u3092 […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-426","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\nJava Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bGoogle reCAPTCHA\u3092\u7d71\u5408\u306e\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Java Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bGoogle reCAPTCHA\u3092\u7d71\u5408\u306e\u65b9\u6cd5\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/java-web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bgoogle-recaptcha\u3092\u7d71\u5408\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bGoogle reCAPTCHA\u3092\u7d71\u5408\u306e\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"Java Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bGoogle reCAPTCHA\u3092\u7d71\u5408\u306e\u65b9\u6cd5\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java-web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306bgoogle-recaptcha\u3092\u7d71\u5408\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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