Add reCaptcha I m not a robot in JAVA JSF Websites
This tutorial shows step by step how to include reCaptcha I m not a robot in JAVA JSF Websites.
- First you have to register with Google recaptcha and get the Site Key and Secret Key.
Visit this link to get the step by step process.
https://chillyfacts.com/add-recaptcha-i-m-not-a-robot-in-java-websites/ - After Registering new site, You will get a Site key and Secret key as Shown
- Project Structure in Netbeans IDE.
- login.java
package com; import javax.faces.application.FacesMessage; import javax.faces.bean.ManagedBean; import javax.faces.bean.RequestScoped; import javax.faces.context.FacesContext; @ManagedBean @RequestScoped public class login { private String user_name; public void setUser_name(String user_name) { this.user_name = user_name; } public String getUser_name() { return user_name; } public String submit_form(){ try { String gRecaptchaResponse = FacesContext.getCurrentInstance(). getExternalContext().getRequestParameterMap().get("g-recaptcha-response"); boolean verify = VerifyRecaptcha.verify(gRecaptchaResponse); if(verify){ return "Success"; }else{ FacesContext context = FacesContext.getCurrentInstance(); context.addMessage( null, new FacesMessage( "Select Captcha") ); return null; } } catch (Exception e) { System.out.println(e); } return null; } } - VerifyRecaptcha.java
package com; import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.StringReader; import java.net.URL; import javax.json.Json; import javax.json.JsonObject; import javax.json.JsonReader; import javax.net.ssl.HttpsURLConnection; public class VerifyRecaptcha { public static final String url = "https://www.google.com/recaptcha/api/siteverify"; public static final String secret = "UPDATE SECRET KEY HERE"; private final static String USER_AGENT = "Mozilla/5.0"; public static boolean verify(String gRecaptchaResponse) throws IOException { if (gRecaptchaResponse == null || "".equals(gRecaptchaResponse)) { return false; } try{ URL obj = new URL(url); HttpsURLConnection con = (HttpsURLConnection) obj.openConnection(); // add reuqest header con.setRequestMethod("POST"); con.setRequestProperty("User-Agent", USER_AGENT); con.setRequestProperty("Accept-Language", "en-US,en;q=0.5"); String postParams = "secret=" + secret + "&response=" + gRecaptchaResponse; // Send post request con.setDoOutput(true); DataOutputStream wr = new DataOutputStream(con.getOutputStream()); wr.writeBytes(postParams); wr.flush(); wr.close(); int responseCode = con.getResponseCode(); System.out.println("\nSending 'POST' request to URL : " + url); System.out.println("Post parameters : " + postParams); System.out.println("Response Code : " + responseCode); BufferedReader in = new BufferedReader(new InputStreamReader( con.getInputStream())); String inputLine; StringBuffer response = new StringBuffer(); while ((inputLine = in.readLine()) != null) { response.append(inputLine); } in.close(); // print result System.out.println(response.toString()); //parse JSON response and return 'success' value JsonReader jsonReader = Json.createReader(new StringReader(response.toString())); JsonObject jsonObject = jsonReader.readObject(); jsonReader.close(); return jsonObject.getBoolean("success"); }catch(Exception e){ e.printStackTrace(); return false; } } } - index.xhtml
<?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://xmlns.jcp.org/jsf/html"> <h:head> <title>Facelet Title</title> <script src="https://www.google.com/recaptcha/api.js"></script> </h:head> <h:body> <h:form> User Name <h:inputText value="#{login.user_name}" required="true" requiredMessage="Enter Name"></h:inputText> <div class="g-recaptcha" data-sitekey="UPDATE SITE KEY HERE"></div> <h:commandButton value="Submit" action="#{login.submit_form}"></h:commandButton> </h:form> </h:body> </html> - success.xhtml
<?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://xmlns.jcp.org/jsf/html"> <h:head> <title>Facelet Title</title> </h:head> <h:body> Success......!!!! <br></br> <h:outputText value="#{login.user_name}"></h:outputText> </h:body> </html> - faces-config.xml
<?xml version='1.0' encoding='UTF-8'?> <faces-config version="2.2" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web- facesconfig_2_2.xsd"> <navigation-rule> <from-view-id>index.xhtml</from-view-id> <navigation-case> <from-action>#{login.submit_form}</from-action> <from-outcome>Success</from-outcome> <to-view-id>success.xhtml</to-view-id> </navigation-case> </navigation-rule> </faces-config> - web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <context-param> <param-name>javax.faces.PROJECT_STAGE</param-name> <param-value>Development</param-value> </context-param> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>/faces/*</url-pattern> </servlet-mapping> <session-config> <session-timeout> 30 </session-timeout> </session-config> <welcome-file-list> <welcome-file>faces/index.xhtml</welcome-file> </welcome-file-list> </web-app>
- index.xhtml
- success.xhtml
- Download the project here.
recaptchatest
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