动态调用消息包？

发布于 2024-10-05 10:52:37 字数 2390 浏览 6 评论 0原文

我有一个非常简单的 JSF 2.0 项目。

我有一个 index.xhtml 文件来向我展示拉什莫尔山的图片。在此页面上，我可以单击图片，然后将其转到“president.xhtml” - 没问题。一个简单的操作=“”...

我的问题是我的消息包文件（messages.properties）是使用静态键和值设置的，例如：

jeffersonPageTitle=Thomas Jefferson
rooseveltPageTitle=Theodore Roosevelt
lincolnPageTitle=Abraham Lincoln
washingtonPageTitle=George Washington

在我的“president.xhtml”文件中，我希望它显示这些标题取决于我点击的内容。

<h:form>
  <span class="presidentPageTitle">#{msgs['rushmore.president'],PageTitle}</span>
  <br />
  <h:graphicImage library="images" name="jefferson.jpg" styleClass="leftImage" />
  <span class="presidentDiscussion">#{msgs.washingtonDiscussion}</span>
  <br />
  <h:commandLink action="index" styleClass="backLink">${msgs.indexLinkText}</h:commandLink>
</h:form>

上面代码中的第二行是我的问题 - 我不知道如何在我的 java 代码中引用 get-Method 。代码在这里：

@ManagedBean // or @Named
@RequestScoped
public class Rushmore {
 private String outcome = null;
 private Rectangle washingtonRect = new Rectangle(70, 30, 40, 40);
 private Rectangle jeffersonRect = new Rectangle(115, 45, 40, 40);
 private Rectangle rooseveltRect = new Rectangle(135, 65, 40, 40);
 private Rectangle lincolnRect = new Rectangle(175, 62, 40, 40);

 public Rushmore() {}

 public void handleMouseClick(ActionEvent e) {
  FacesContext context = FacesContext.getCurrentInstance();
  String clientId = e.getComponent().getClientId(context);
  Map<String, String> requestParams = context.getExternalContext().getRequestParameterMap();


  int x = new Integer((String) requestParams.get(clientId + ".x")).intValue();
  int y = new Integer((String) requestParams.get(clientId + ".y")).intValue();

  outcome = null;

  if (washingtonRect.contains(new Point(x, y))) {
   outcome = "washington";
  }

  if (jeffersonRect.contains(new Point(x, y))) {
   outcome = "jefferson";
  }

  if (rooseveltRect.contains(new Point(x, y))) {
   outcome = "roosevelt";
  }
  if (lincolnRect.contains(new Point(x, y))) {
   outcome = "lincoln";
  }
  System.out.println(requestParams.keySet());
 }

 public String getPresident() {
  return outcome;
 }

 public String navigate() {
  if(outcome != null) {
   return "president";
  }
  else return null;
 }
}

这是我试图在 President.xhtml 文件中访问的 getPresident 方法...

任何帮助将不胜感激:)

原文

I have a very simple JSF 2.0 project.

I have an index.xhtml file to show me a picture of Mount Rushmore.
On this page, I can click on the picture and I want it to go to "president.xhtml" - no problem in that. A simple action=""...

My problem is that my message bundle file (messages.properties) is set up with static keys and values, ex.:

jeffersonPageTitle=Thomas Jefferson
rooseveltPageTitle=Theodore Roosevelt
lincolnPageTitle=Abraham Lincoln
washingtonPageTitle=George Washington

And in my "president.xhtml" file, I want it to show these titles depending on what I clicked on.

<h:form>
  <span class="presidentPageTitle">#{msgs['rushmore.president'],PageTitle}</span>
  <br />
  <h:graphicImage library="images" name="jefferson.jpg" styleClass="leftImage" />
  <span class="presidentDiscussion">#{msgs.washingtonDiscussion}</span>
  <br />
  <h:commandLink action="index" styleClass="backLink">${msgs.indexLinkText}</h:commandLink>
</h:form>

Second line in the code above is my problem - I don't know how to refer to the get-Method in my java-code. Code is here:

@ManagedBean // or @Named
@RequestScoped
public class Rushmore {
 private String outcome = null;
 private Rectangle washingtonRect = new Rectangle(70, 30, 40, 40);
 private Rectangle jeffersonRect = new Rectangle(115, 45, 40, 40);
 private Rectangle rooseveltRect = new Rectangle(135, 65, 40, 40);
 private Rectangle lincolnRect = new Rectangle(175, 62, 40, 40);

 public Rushmore() {}

 public void handleMouseClick(ActionEvent e) {
  FacesContext context = FacesContext.getCurrentInstance();
  String clientId = e.getComponent().getClientId(context);
  Map<String, String> requestParams = context.getExternalContext().getRequestParameterMap();


  int x = new Integer((String) requestParams.get(clientId + ".x")).intValue();
  int y = new Integer((String) requestParams.get(clientId + ".y")).intValue();

  outcome = null;

  if (washingtonRect.contains(new Point(x, y))) {
   outcome = "washington";
  }

  if (jeffersonRect.contains(new Point(x, y))) {
   outcome = "jefferson";
  }

  if (rooseveltRect.contains(new Point(x, y))) {
   outcome = "roosevelt";
  }
  if (lincolnRect.contains(new Point(x, y))) {
   outcome = "lincoln";
  }
  System.out.println(requestParams.keySet());
 }

 public String getPresident() {
  return outcome;
 }

 public String navigate() {
  if(outcome != null) {
   return "president";
  }
  else return null;
 }
}

It's the getPresident method I'm trying to reach in the president.xhtml file...

Any help would be much appreciated :)

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梦里寻她 2024-10-12 10:52:37

使用 c:set。

<html xmlns:c="http://java.sun.com/jsp/jstl" ...>
...
<c:set var="pageTitle" value="#{rushmore.president}PageTitle" />
<span class="presidentPageTitle">#{msgs[pageTitle]}</span>

Use c:set.

<html xmlns:c="http://java.sun.com/jsp/jstl" ...>
...
<c:set var="pageTitle" value="#{rushmore.president}PageTitle" />
<span class="presidentPageTitle">#{msgs[pageTitle]}</span>

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