未调用操作bean

Question

我在使用JSF2.0时遇到了问题。命令按钮不调用bean，我已经阅读了balusc应答commandbutton/commandlink/ajax action/listener方法未调用或输入值未更新，但我认为我不会遇到这些情况，这就是我使用的代码：

<ui:composition xmlns="http://www.w3.org/1999/xhtml"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:p="http://primefaces.org/ui"
    xmlns:c="http://java.sun.com/jstl/core">


    ....   

<ui:repeat var="skill" value="#{skillsView.skills}">
    <h:form>


            <h:commandButton value="#{skill}"
                action="#{skillsController.removeSkillFromPublication}"  ajax="true">
                <f:param name="theskill" value="#{skill}" />
            </h:commandButton>


    </h:form>
</ui:repeat>

</ui:composition>

更新1：

@Controller
@Scope(value = WebApplicationContext.SCOPE_REQUEST)
public class SkillsController extends BController {

    private static final Logger logger = LoggerFactory
            .getLogger(SkillsController.class);

    public void removeSkillFromPublication() {
        logger.info("Deleting : " + getParameter("theskill"));
        publicationService.removeSkillFromPublication(publicationDetailView
                .getPublicationFullView().getId(), getParameter("theskill"));
        skillsView.setSkills(publicationService
                .getSkillsFromPublication(publicationDetailView
                        .getPublicationFullView().getId()));
    }



}

@Controller
@Scope(value = WebApplicationContext.SCOPE_SESSION)
public class SkillsView {

    List<String> skills;
    private String currentSkill;


    public List<String> getSkills() {
        return skills;
    }
    public void setSkills(List<String> skills) {
        this.skills = skills;
    }
    public String getCurrentSkill() {
        return currentSkill;
    }
    public void setCurrentSkill(String currentSkill) {
        this.currentSkill = currentSkill;
    }

Answer 1

h:CommandButton属性操作要求返回字符串

摘自JSF-Toolbox：

action
action属性接受支持bean操作方法的方法绑定表达式，以便在用户激活该组件时调用该方法。action方法必须是没有返回字符串的参数的公共方法。返回的字符串表示操作的逻辑结果（例如“成功”、“失败”等），并由JavaServer Faces MVC框架用于确定下一步显示哪个视图。_{[由我加粗]}

<h:commandButton actionListener="${skillsController.removeSkillFromPublication()}" ajax="true">
    <f:param name="theskill" value="#{skill}" />
</h:commandButton>

public void removeSkillFromPublication(ActionEvent e) {
   //...

或者，您可以让RemovesKillFromPublication()返回一个字符串。但这似乎是错误的做法。