Class Grails/Gorn刷新消息
我在控制器中的保存方法:Class Grails/Gorn刷新消息,class,grails,dns,service,gorm,Class,Grails,Dns,Service,Gorm,我在控制器中的保存方法: def save = { def userInstance = new User(params) boolean captcha = jcaptchaService.validateResponse("image", session.id, params.response) if ( (captcha) && (userInstance.save(flush: true))) {
def save = {
def userInstance = new User(params)
boolean captcha = jcaptchaService.validateResponse("image", session.id, params.response)
if ( (captcha) && (userInstance.save(flush: true))) {
flash.message = "${message(code: 'default.created.message', args: [message(code: 'user.label', default: 'User'), userInstance.id])}"
redirect(url:'http://localhost:8080/TrafficManFinal/index.gsp?page=registThx')
}
else {
if (captcha == false)
flash.message2 = "Wrong Captcha!"
render(view: "create", model: [userInstance: userInstance])
}
}
我的用户/create.gsp视图
<tr class="prop">
<td valign="top" class="name">
<label for="secretAnswer"><g:message code="user.secretAnswer.label" default="Secret Answer" /></label>
</td>
<td valign="top" class="value ${hasErrors(bean: userInstance, field: 'secretAnswer', 'errors')}">
<g:textField name="secretAnswer" value="${userInstance?.secretAnswer}" />
<g:form name="challenge" action="image">
<jcaptcha:jpeg name="image" /><br>
<br>
<g:textField name="response" value="" /><br>
<br>
</g:form>
</td>
</tr
>
服务:
import com.octo.captcha.service.CaptchaService;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
/**
* Provides access to the captchas as well as provides some util
* type methods to convert captchas to usable data.
*
* @author LD <ld@ldaley.com>
*/
class JcaptchaService
{
/**
* Used to access the captchas defined as part of the app config.
*/
def grailsApplication
/**
* Retrieves a captcha by name.
*
* @param captchaName The 'key' of the captcha defined in config.
* @throws IllegalArgumentException If captchaName is null.
* @throws IllegalStateException If there is no captcha by that name.
* @returns The captcha service keyed by 'captchaName'
*/
CaptchaService getCaptchaService(String captchaName) {
if (captchaName == null) throw IllegalArgumentException("'captchaName' cannot be null")
def c = grailsApplication.config.jcaptchas[captchaName]
if (c == null) throw new IllegalStateException("There is no jcaptcha defined with name '${captchaName}'")
c
}
/**
* Used to verify the response to a challenge.
*
* @param captchaName The key of the captcha
* @param id The identifier used when retrieving the challenge (often session.id)
* @param response What the user 'entered' to meet the challenge
* @return True if the response meets the challenge
* @see getCaptchaService()
*/
boolean validateResponse(captchaName, id, response)
{
def c = getCaptchaService(captchaName)
c.validateResponseForID(id, response)
}
/**
* Utility routine to turn an image challenge into a JPEG stream.
*
* @param challenge The image data
* @return A raw bunch of bytes which come together to be a JPEG.
*/
byte[] challengeAsJpeg(BufferedImage challenge)
{
def jpegOutputStream = new ByteArrayOutputStream()
def jpegEncoder = JPEGCodec.createJPEGEncoder(jpegOutputStream)
jpegEncoder.encode(challenge)
jpegOutputStream.toByteArray()
}
/**
* Utility routine to turn a sound challenge into a WAV stream.
*
* @param challenge The sound data
* @return A raw bunch of bytes which come together to be a WAV.
*/
byte[] challengeAsWav(AudioInputStream challenge)
{
ByteArrayOutputStream soundOutputStream = new ByteArrayOutputStream()
AudioSystem.write(challenge, AudioFileFormat.Type.WAVE, soundOutputStream)
soundOutputStream.flush()
soundOutputStream.close()
soundOutputStream.toByteArray()
}
}
它的实现方式是,只有引入一次正确的captch,我才能看到来自约束的flush.messages。我想要一种方法来合并两个刷新消息或同时显示两个不同的刷新。现在您走上了正确的轨道;从阅读评论中 通常,控制器调用服务,服务在域模型上运行 在这种情况下,如果您的案例是典型案例,则CAPTCHA用于验证是否有人输入了数据,而不是某种程序
所以这是在控制器领域。在控制器操作中,您将使用CaptchaService验证用户输入的值。如果是错误的,您可能会重新启动验证码页面。如果它是正确的,您可以继续。您想用验证码做什么,为什么要保存它?我想我应该在scafalding的User/save.gsp文件中使用该服务,而不是试图保存验证码lol。是这样吗?我在User/Create中创建了一个文本字段,它不会存储任何信息。我用的是默认的scafolding thingi re formulated que问题。请再看一次:p,谢谢你的帮助