java - 丰富的建议 - 为什么输入为空？ (接缝框架)

Question

我正在尝试构建丰富的建议，但我不明白为什么输入值为空...我的意思是，为什么当我输入某些内容时不获取 inputText 值。

.xhtml 代码:

<h:inputText value="#{suggestion.input}" id="text">
</h:inputText>
<rich:suggestionbox id="suggestionBoxId" for="text" tokens=",[]"
                    suggestionAction="#{suggestion.getSimilarSpacePaths()}" var="result"
                    fetchValue="#{result.path}"
                    first="0"
                    minChars="2"
                    nothingLabel="No similar space paths found"
                    columnClasses="center"
        >
    <h:column>
        <h:outputText value="#{result.path}" style="font-style:italic"/>
    </h:column>
</rich:suggestionbox>

和 Action 类:

@Name("suggestion")
@Scope(ScopeType.CONVERSATION)
public class Suggestion {
@In
protected EntityManager entityManager;

private String input;

public String getInput() {
    return input;
}

public void setInput(final String input) {
    this.input = input;
}

public List<Space> getSimilarSpacePaths() {
    List<Space> suggestionsList = new ArrayList<Space>();
    if (!StringUtils.isEmpty(input) && !input.equals("/")) {
        final Query query = entityManager.createNamedQuery("SpaceByPathLike");
        query.setParameter("path", input + '%');
        suggestionsList = (List<Space>) query.getResultList();
    }
    return suggestionsList;
}

}

因此，输入为空，建议列表始终为空...为什么输入的值没有发布？

Answer 1

嗯，关键是要使用带参数的方法来获得丰富的建议!该参数实际上是用户在该 inputText 中键入的内容...因此，它应该是:而不是上面的类:

@Name("suggestion")
public class Suggestion {


@In
 protected EntityManager entityManager;

 public List<String> getSimilarSpacePaths(final Object input) {
  //prepare the list with the strings
        //...
     return suggestionsList;
     }
    }

和.xhtml:

<h:inputText id="text" size="80" value="#{accountHome.instance.creationPath}">
</h:inputText>
<rich:suggestionbox id="suggestionBoxId" for="text" tokens=",[]"
     suggestionAction="#{suggestion.getSimilarSpacePaths}" var="result"
     fetchValue="#{result}"
     first="0"
     minChars="2"
     nothingLabel="No similar space paths found"
     columnClasses="center"
     width="350"
  >
 <h:column>
  <h:outputText value="#{result}" style="font-style:italic"/>
 </h:column>
 <a:support ajaxSingle="true" event="onselect">
  <f:setPropertyActionListener value="#{result}" target="#{accountHome.instance.creationPath}"/>
 </a:support>
</rich:suggestionbox>

也许对其他人有用:)