[英]h:commandLink in jsf2 not invoking bean method and not even through javascript call
這是在將我的項目遷移到tomcat7上的jsf2之后發生的。 先前在tomcat5.5 for jsf 1上運行良好。 我有一個.xhtml文件,嘗試從該文件中通過h:commandLink調用托管Bean方法,但未被調用。 我曾嘗試添加EL 2.2罐子,作為與該主題相關的其他stackoverflow論壇中的建議,並且還在web.xml中添加了條目:
<context-param>
<param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name>
<param-value>com.sun.el.ExpressionFactoryImpl</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.expressionFactory</param-name>
<param-value>com.sun.el.ExpressionFactoryImpl</param-value>
</context-param>
但是問題沒有解決。 請幫忙。
.xhtml文件:
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:t="http://myfaces.apache.org/tomahawk">
<f:view>
<f:loadBundle var="text" basename="#{basePage.bundleName}"/>
<title>#{text['user.passwordHint']}</title>
<p>Looking up password hint for ${param.username}...</p>
<h:form id="passwordForm">
<h:inputHidden id="username" value="#{passwordHint.username}"/>
<h:commandLink action="#{passworHint.execute}" id="execute">
<f:param name="username" value="${param.username}"></f:param>
</h:commandLink>
</h:form>
<script type="text/javascript">
var f = document.forms['passwordForm'];
f.elements['passwordForm:_link_hidden_'].value='passwordForm:execute';
f.elements['username'].value='${param.username}';
f.submit();
</script>
</f:view>
</html>
托管豆:
public class PasswordHint extends BasePage {
@ManagedProperty(value="#{param.username}")
private String username;
/* private String execute;
public String getExecute() {
return execute;
}
public void setExecute(String execute) {
this.execute = execute;
}*/
public String getUsername() {
System.out.println("get username of passwordhint-------"+username);
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String execute() {
/* FacesContext context = FacesContext.getCurrentInstance();
Map<String,String> params = context.getExternalContext().getRequestParameterMap();
System.out.println(params.get("username"));
System.out.println("Inside password hint execute-------------");
*/
// ensure that the username has been sent
if (username == null || "".equals(username)) {
log.warn("Username not specified, notifying user that it's a required field.");
addError("errors.required", getText("user.username"));
return null;
}
if (log.isDebugEnabled()) {
log.debug("Processing Password Hint...");
}
// look up the user's information
try {
User user = userManager.getUserByUsername(username);
System.out.println("username retrieved---------"+username);
StringBuffer msg = new StringBuffer();
msg.append("Your password hint is: " + user.getPasswordHint());
msg.append("\n\nLogin at: " + RequestUtil.getAppURL(getRequest()));
message.setTo(user.getEmail());
String subject = '[' + getText("webapp.name") + "] " + getText("user.passwordHint");
message.setSubject(subject);
message.setText(msg.toString());
mailEngine.send(message);
addMessage("login.passwordHint.sent",
new Object[] { username, user.getEmail() });
} catch (Exception e) {
e.printStackTrace();
System.out.println("In exception----------------");
// If exception is expected do not rethrow
//addError("login.passwordHint.error", username);
addMessage("login.passwordHint.sent", username);
}
return "success";
}
faces-config.xml:
<navigation-rule>
<from-view-id>/passwordHint.xhtml</from-view-id>
<navigation-case>
<from-outcome>success</from-outcome>
<to-view-id>/login.jsp</to-view-id>
<redirect/>
</navigation-case>
</navigation-rule>
<managed-bean>
<managed-bean-name>passwordHint</managed-bean-name>
<managed-bean-class>com.webapp.action.PasswordHint</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
<managed-property>
<property-name>username</property-name>
<value>#{param.username}</value>
</managed-property>
<managed-property>
<property-name>userManager</property-name>
<value>#{userManager}</value>
</managed-property>
<managed-property>
<property-name>mailEngine</property-name>
<value>#{mailEngine}</value>
</managed-property>
<managed-property>
<property-name>message</property-name>
<value>#{mailMessage}</value>
</managed-property>
<managed-property>
<property-name>templateName</property-name>
<value>accountCreated.vm</value>
</managed-property>
</managed-bean>
是的,這是我正在嘗試的實際代碼,這是復制粘貼我的實際代碼時的錯字。 另外,JavaScript錯誤指出: f.elements['passwordForm:_link_hidden_'] is null or not an object.
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.