Impossible de raffraichir une zone specifique
Salut,
Je n'arrive pas a pouvoir raffraichir une zone de ma page (La zone contient une image captcha qu'est generee a partir du jar SimpleCaptcha). J'espere que quelqu'un pourra m'aider. Voici mes codes, vous aurez donc un apercu de ce que j'ai fait:
La page jsp ou le captcha s'affiche:
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| <%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix="sx" uri="/struts-dojo-tags"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
</head>
<body>
<s:actionmessage />
<s:actionerror />
<s:form action="addProject" validate="true" method="POST">
<table>
<tr>
<td>Project Name :</td>
<td><s:textfield name="newProject.name" /></td>
</tr>
<tr>
<td><!-- Action à effectuer -->
<s:url id="prepareAdd"
action="prepareAdd">
</s:url>
<sx:div id="captcha_div" listenTopics="/prepareAdd" href="%{prepareAdd}">
<img id="captcha" src="Captcha.jpg" width="300" height="100" />
</sx:div><sx:submit name="refresh" type="image" src="image/Refresh_view.jpg"
targets="captcha_div"></sx:submit></td>
<td><input type="text" name="captcha" /></td>
</tr>
<tr>
<td colspan="2"><s:submit name="submit" action="addProject"
value="Add project" /></td>
</tr>
</table>
</s:form>
</body>
</html> |
Le servlet captcha
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| package com.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import nl.captcha.Captcha;
import nl.captcha.servlet.CaptchaServletUtil;
import nl.captcha.servlet.SimpleCaptchaServlet;
public class CaptchaServlet extends SimpleCaptchaServlet {
private static final long serialVersionUID = -621179653212023375L;
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
Captcha captcha = new Captcha.Builder(_width, _height)
.addText()
.build();
CaptchaServletUtil.writeImage(resp, captcha.getImage());
req.getSession().setAttribute(Captcha.NAME, captcha);
}
} |
La classe action
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| package com.action;
import java.util.List;
import nl.captcha.Captcha;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.interceptor.validation.SkipValidation;
import com.entity.ProjectEntity;
import com.exception.TechniqueException;
import com.service.PersonService;
import com.opensymphony.xwork2.Preparable;
import com.opensymphony.xwork2.validator.annotations.Validation;
import com.opensymphony.xwork2.validator.annotations.VisitorFieldValidator;
@Validation
public class ProjectAction extends BaseAction implements Preparable {
/**
*
*/
private static final long serialVersionUID = 5430460063723489974L;
private List<ProjectEntity> projects;
private PersonService personService;
private ProjectEntity newProject;
private Integer id;
private String captcha;
private boolean submit;
private boolean refresh;
public ProjectAction(PersonService personService) {
this.personService = personService;
}
@Override
public void prepare() throws Exception {
}
@SkipValidation
@Action(value="/listProjects", results={ @Result(type="tiles", location="/listProjects.tiles")})
public String execute() {
this.setProjects(this.personService.getProjects());
return SUCCESS;
}
@SkipValidation
@Action(value="/prepareAdd", results={ @Result(type="tiles", location="/prepareAdd.tiles")})
public String prepareAdd() {
this.setNewProject(new ProjectEntity());
return SUCCESS;
}
@Action(value="/addProject", results={ @Result(name="input", type="tiles", location="/addProject.tiles"),
@Result(name="prepareAdd", type="tiles", location="/prepareAdd.tiles")})
public String add() {
// Check captcha
Captcha captcha = (Captcha) super.getSession().getAttribute(Captcha.NAME);
if(captcha.isCorrect(getCaptcha())) {
System.out.println("captcha ok");
this.personService.saveProject(newProject);
this.addActionMessage("Un enregistrement effectué");
newProject = new ProjectEntity();
return INPUT;
}else {
return "prepareAdd";
}
}
@SkipValidation
@Action(value="/removeProject", results={ @Result( type="tiles", location="/listProjects.tiles"),
@Result(name="redirect", type="redirectAction", location = "listProjects") })
public String remove() {
try {
this.personService.deleteProject(id);
} catch (TechniqueException e) {
return ERROR;
}
return "redirect";
}
public List<ProjectEntity> getProjects() {
return projects;
}
public void setProjects(List<ProjectEntity> projects) {
this.projects = projects;
}
// don't provide message, it is supplied by
// annotations in Project class
@VisitorFieldValidator(message="*" )
public ProjectEntity getNewProject() {
return newProject;
}
public void setNewProject(ProjectEntity newProject) {
this.newProject = newProject;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getCaptcha() {
return captcha;
}
public void setCaptcha(String captcha) {
this.captcha = captcha;
}
public boolean isSubmit() {
return submit;
}
public void setSubmit(boolean submit) {
this.submit = submit;
}
public boolean isRefresh() {
return refresh;
}
public void setRefresh(boolean refresh) {
this.refresh = refresh;
}
} |
Declaration du captcha dans le web.xml
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| <servlet>
<servlet-name>SimpleCaptcha</servlet-name>
<servlet-class>com.servlet.CaptchaServlet</servlet-class></servlet>
<servlet-mapping>
<servlet-name>SimpleCaptcha</servlet-name>
<url-pattern>/Captcha.jpg</url-pattern>
</servlet-mapping> |
Je veux raffraichir le captcha lorsque je clique sur le bouton refresh, seulement la zone captcha doit etre raffraichir. Pouvez vous m'aider svp.
Cdt
Neerou
