2
私のコードが私のバッキングBeanでアクションを引き起こしていないという問題があります。次のようにコードがある：私はボタンをクリックしても何も起こらない理由JSF MethodExpressionがバッキングBeanのアクションを起動していません
public void action_replyToComment() {
logger.info("Homemade action called!!!");
System.out.println("Homemade action called!!!");
}
誰でも見つけるん：ハンドラとしてFacesConfigで定義されてRequestHandlerBeanと呼ばれる私のバッキングBeanでは、
HtmlCommandButton replyCommentButton = new HtmlCommandButton();
replyCommentButton.setId("replyCommentButton" + commentCounter);
replyCommentButton.setValue("Create reply");
String action = "#{Handler.action_replyToComment}";
MethodExpression methodExpression =
FacesContext.getCurrentInstance().getApplication().getExpressionFactory().
createMethodExpression(FacesContext.getCurrentInstance().getELContext(), action, null,
new Class<?>[0]);
replyCommentButton.setActionExpression(methodExpression);
を、私は次のコードを持っています？イベントを適切にトリガーしていません。 HTMLコードのソースは次のとおりです。
HTMLで定義されているアクションはありません。
編集2：私はJavadocで、自分のアクションメソッドがパブリックStringでなければならないことを知りました。
public String action_replyToComment() {
logger.info("Homemade action called!!!");
System.out.println("Homemade action called!!!");
return null;
}
EDIT2：私のバッキングBeanのコードがあるので、私は今、私のバッキングBeanでこれを変更した私も、私はそれがタグ内にカプセル化していることを確認しましましたが、まだ運。要素にアクション属性があってはなりませんか？
EDIT3：
<a4j:commandButton action="#{Handler.action_replyToComment}" value="Reply" />
：私はこのような私のJSFページに出力することを選択した場合も
<managed-bean>
<description>
Handles the specific request.
</description>
<managed-bean-name>Handler</managed-bean-name>
<managed-bean-class>no.ngt.tech.rt2.beans.RequestHandlerBean</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
：私のBeanは、このように私の顔-config設定で定義されていますそれは完全に動作します
EDIT 4 - MY JSP PAGE メモまた、償却されたsetAction（methodBinding）も使用しようとしましたが、残念ながら、どちらも機能しませんでした。
<%@ include file="_includes.jsp" %>
<f:view>
<html>
<head>
<title><h:outputText value="#{msgs.title}" /></title>
</head>
<body>
<br /><br /><br />
<%@ include file="_menu.jsp" %>
<rich:tabPanel switchType="client">
<rich:tab id="commentsTab" label="Comments" rendered="#{Handler.editRequest}">
<h:form>
<ngt:commentTree binding="#{Handler.commentTree}" value="#{Handler.comments}" />
<br />
<a4j:commandButton action="#{Handler.action_replyToComment}" value="testbutton" />
</h:form>
</rich:tab>
</rich:tabPanel>
</body>
</html>
</f:view>
menu.jsp：
<h:form>
<rich:toolBar itemSeparator="line" styleClass="toolbar" contentClass="toolbar" height="22">
<rich:toolBarGroup>
<rich:menuItem submitMode="server" value="Front" action="#{newRT.action_showFront}" />
</rich:toolBarGroup>
<rich:toolBarGroup>
<rich:menuItem submitMode="server" value="New request" action="#{Step.action_showSteps}" />
</rich:toolBarGroup>
<rich:toolBarGroup>
<rich:menuItem submitMode="server" value="Requests" action="#{Handler.action_showRequestsView}" />
</rich:toolBarGroup>
<rich:toolBarGroup>
<rich:menuItem submitMode="server" value="Control-panel" action="#" />
</rich:toolBarGroup>
<rich:toolBarGroup location="right">
<h:inputText styleClass="barsearch" value="#{Handler.search}" />
<a4j:commandButton styleClass="barsearchbutton" action="#{Handler.action_GetRequestFromID}" value="Search" />
</rich:toolBarGroup>
</rich:toolBar>
</h:form>
<br/><br/>
Includes.jsp
<%@ taglib prefix="h" uri="http://java.sun.com/jsf/html" %>
<%@ taglib prefix="f" uri="http://java.sun.com/jsf/core" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="a4j" uri="http://richfaces.org/a4j" %>
<%@ taglib prefix="rich" uri="http://richfaces.org/rich"%>
<%@ taglib prefix="ngt" uri="http://MySpecialTagLib.no/"%>
編集7 - UIComponentのJavaコード：
これはCommentsTreeUI.javaです：
public class CommentsTreeUI extends UIOutput {
private static Logger logger = Logger.getLogger(CommentsTreeUI.class.getName());
@Override
public void encodeBegin(FacesContext context) throws IOException {
List<CommentTag> value = (List<CommentTag>) getAttributes().get("value");
int commentCounter = 0;
if (value != null) {
for (CommentTag comment : value) {
commentCounter++;
ResponseWriter commentContainerWriter = context.getResponseWriter();
commentContainerWriter.startElement("div", this);
commentContainerWriter.writeAttribute("id", "Comment" + commentCounter, null);
String width = comment.getWidth();
String height = comment.getHeight();
String style = comment.getStyle();
style = (style != null) ? style + ";" : "";
if (width != null) {
style += "width:" + width + ";";
}
if (height != null) {
style += "height:" + height + ";";
}
commentContainerWriter.writeAttribute("style", style, null);
String newComment = comment.getNewComment();
if (newComment == null) {
newComment = "false";
}
String level = comment.getLevel();
if (level != null) {
level = "commentContainerLevel" + level + newComment;
}
commentContainerWriter.writeAttribute("class", level, null);
String title = comment.getTitle();
if (title != null) {
commentContainerWriter.writeAttribute("title", title, null);
}
String titleText = comment.getTitleText();
if (titleText != null) {
ResponseWriter titleTextWriter = context.getResponseWriter();
UIOutput titleTextComponent = new UIOutput();
titleTextWriter.startElement("div", titleTextComponent);
titleTextWriter.writeAttribute("class", "commentHeaderText" + newComment, null);
titleTextWriter.writeText(titleText + " | ", null);
titleTextWriter.startElement("a", titleTextComponent);
titleTextWriter.writeAttribute("onclick", "showCommentReply('CommentReply" + commentCounter + "')", null);
titleTextWriter.writeAttribute("class", "reply", null);
titleTextWriter.writeText("Reply", null);
titleTextWriter.endElement("a");
titleTextWriter.endElement("div");
}
String commentBody = comment.getCommentBody();
if (commentBody != null) {
ResponseWriter commentBodyWriter = context.getResponseWriter();
UIOutput commentBodyComponent = new UIOutput();
commentBodyWriter.startElement("div", commentBodyComponent);
commentBodyWriter.writeText(commentBody, null);
commentBodyWriter.endElement("div");
}
ResponseWriter replyContainerWriter = context.getResponseWriter();
UIOutput replyContainerComponent = new UIOutput();
replyContainerWriter.startElement("div", replyContainerComponent);
commentContainerWriter.writeAttribute("id", "CommentReply" + commentCounter, null);
replyContainerWriter.writeAttribute("class", "replyContainer", null);
ResponseWriter replyHeaderWriter = context.getResponseWriter();
UIOutput replyHeaderComponent = new UIOutput();
replyHeaderWriter.startElement("div", replyHeaderComponent);
replyHeaderWriter.writeAttribute("class", "replyHeaderContainer", null);
replyHeaderWriter.endElement("div");
ResponseWriter replyFormWriter = context.getResponseWriter();
UIInput replyFormComponent = new UIInput();
replyFormWriter.startElement("fieldset", replyFormComponent);
replyFormWriter.startElement("textarea", replyFormComponent);
replyFormWriter.writeAttribute("type", "textarea", null);
replyFormWriter.writeAttribute("rows", "5", null);
replyFormWriter.writeAttribute("cols", "76", null);
replyFormWriter.writeText("Write your answer here", null);
replyFormWriter.endElement("textarea");
//TODO: Fix so button has action to backing bean
HtmlAjaxCommandButton replyCommentButton = new HtmlAjaxCommandButton();
replyCommentButton.setId("replyCommentButton" + commentCounter);
replyCommentButton.setValue("Create reply");
String action = "#{RequestHandlerBean.action_replyToComment}";
//replyCommentButton.setReRender("commentsTree");
ExpressionFactory factory = context.getApplication().getExpressionFactory();
Class [] argtypes=new Class[1];
argtypes[0]=ActionEvent.class;
MethodExpression replyActionExpression = factory.createMethodExpression(context.getELContext(), action, null, argtypes);
replyCommentButton.setActionExpression(replyActionExpression);
MethodExpression methodExpression = context.getCurrentInstance().getApplication().getExpressionFactory().
createMethodExpression(context.getCurrentInstance().getELContext(), action, null, new Class<?>[0]);
replyCommentButton.setActionExpression(methodExpression);
/*
replyCommentButton.setAction(context.getApplication().createMethodBinding(action, argtypes));
*/
replyCommentButton.encodeAll(context);
//Todo above
replyFormWriter.writeText(" ", null);
replyFormWriter.startElement("input", replyFormComponent);
replyFormWriter.writeAttribute("type", "button", null);
replyFormWriter.writeAttribute("value", "Cancel ", null);
replyFormWriter.writeAttribute("onclick", "hideCommentReply('CommentReply" + commentCounter + "')", title);
replyFormWriter.endElement("input");
replyFormWriter.endElement("fieldset");
replyContainerWriter.endElement("div");
commentContainerWriter.endElement("div");
}
} else { //value==null
ResponseWriter writer = context.getResponseWriter();
writer.startElement("div", this);
writer.writeAttribute("id", getClientId(context), null);
String width = (String) getAttributes().get("width");
String height = (String) getAttributes().get("height");
String style = (String) getAttributes().get("style");
style = (style != null) ? style + ";" : "";
if (width != null) {
style += "width:" + width + ";";
}
if (height != null) {
style += "height:" + height + ";";
}
writer.writeAttribute("style", style, null);
String styleClass = (String) getAttributes().get("styleClass");
if (styleClass != null) {
writer.writeAttribute("class", styleClass, null);
}
String title = (String) getAttributes().get("title");
if (title != null) {
writer.writeAttribute("title", title, null);
}
}
}
@Override
public void encodeEnd(FacesContext context) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.endElement("div");
}
これはCommenstTreeTagです：
public class CommentsTreeTag extends UIComponentTag {
String style;
String styleClass;
String title;
String width;
String height;
String value;
Long parentId;
public void release() {
// the super class method should be called
super.release();
style = null;
styleClass = null;
title = null;
height = null;
width = null;
parentId = null;
value = null;
}
@Override
protected void setProperties(UIComponent component) {
// the super class method should be called
super.setProperties(component);
if (style != null) {
component.getAttributes().put("style", style);
}
if (styleClass != null) {
component.getAttributes().put("styleClass", styleClass);
}
if (width != null) {
component.getAttributes().put("width", width);
}
if (height != null) {
component.getAttributes().put("height", height);
}
if (title != null) {
if (isValueReference(title)) {
ValueBinding vb =
getFacesContext().getApplication().createValueBinding(title);
component.setValueBinding("title", vb);
} else {
component.getAttributes().put("title", title);
}
}
if (value != null) {
if (isValueReference(value)) {
ValueBinding vb =
getFacesContext().getApplication().createValueBinding(value);
component.setValueBinding("value", vb);
getFacesContext().getApplication().createValueBinding(value);
} else {
component.getAttributes().put("value", value);
}
}
if (parentId != null) {
component.getAttributes().put("parentId", parentId);
}
}
public String getComponentType() {
return "commentTree";
}
public String getRendererType() {
// null means the component renders itself
return null;
}
public String getHeight() {
return height;
}
public void setHeight(String height) {
this.height = height;
}
public String getWidth() {
return width;
}
public void setWidth(String width) {
this.width = width;
}
public String getStyle() {
return style;
}
public void setStyle(String style) {
this.style = style;
}
public String getStyleClass() {
return styleClass;
}
public void setStyleClass(String styleClass) {
this.styleClass = styleClass;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
html出力ではなく、jsfページの関連コードを知りたいと思います。あなたはそれを追加できますか？ – alexmeia
おそらく、（createMethodExpressionの代わりにcreateMethodBindingを使って）最も古い方法で試すことができます。私の編集応答を参照してください。 – romaintaz
完全なJavaコードを表示できますか？ Javaで作成したコンポーネントをJSFコンポーネントツリーにどのように追加しますか？ – romaintaz