Rumah >Java >javaTutorial >PlayFramework完整实现一个APP(七)
1.添加验证码
application Controller添加captcha()
public static void captcha() {
Images.Captcha captcha = Images.captcha();
renderBinary(captcha);
}
添加Route
GET /captcha Application.captcha
访问 http://localhost:9000/captcha
验证码图片已经实现了,现在需要做的是验证输入信息与验证码一致
修改captcha()方法
public static void captcha(String id) {
Images.Captcha captcha = Images.captcha();
String code = captcha.getText("#E4EAFD");
Cache.set(id, code, "10mn");
renderBinary(captcha);
}
修改show()方法
public static void show(Long id) {
Post post = Post.findById(id);
String randomID = Codec.UUID();
render(post, randomID);
}
修改show.html页面
在Comment下方添加验证码图片,和验证控件
2.验证
修改postComment 方法
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()) {
render("Application/show.html", post);
}
post.addComment(author, content); Flash.success("Thanks for posting %s", author);
Cache.delete(randomId);
show(postId);
}
修改show.html页面
#{ifErrors}
${errors[0]}
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