PlayFramework completely implements an APP (7)

1. Add verification code

application Controller add captcha()

public static void captcha() {
Images.Captcha captcha = Images.captcha();
renderBinary(captcha);
}

Add Route

GET /captcha Application.captcha

Visit http://localhost:9000/captcha The verification code image has been implemented. What needs to be done now is to verify that the input information is consistent with the verification code

Modify the captcha() method

Images.Captcha captcha = Images.captcha();

Cache.set(id, code, "10mn");

}


　

Modify the show() method

Post post = Post.findById(id);

render(post, randomID);

　

Modify the show.html page

for="content">Your message:

Please type the code below:

 
 
                                                                 Verify

Modify postComment method

public static void postComment(
Long postId,
@Required(message="Author is required") String author,
@Required(message="A message is required") String content,
@ Required(message="Please type the code") String code,
String randomId) {
Post post = Post.findById(postId);
validation.equals(code, Cache.get(randomId)).message("Invalid code . Please type it again");

if(validation.hasErrors()) {

}

post.addComment(author, content); Flash.success( "Thanks for posting %s", author);

show(postId);
}




Modify the show.html page

#{ifErrors}
error">
                                       ${errors[0]}                                                                                                                                  Net (m.sbmmt.com)!