java - 如何使用 ajax 显示 DOJO 自动完成值

Question

我正在尝试使用 dojo 自动完成器对信息的 HashMap 进行 ajax 检索，但下拉菜单中似乎没有显示任何内容。请帮忙

我的 JSP 代码:

 <sx:head/>
 .......
 <s:url id="companyList" action="AjaxAutoCompleteCompanyPOCAction" />
 <sx:autocompleter name="company" href="%{companyList}"  size="24" loadOnTextChange="true"  preload="false" loadMinimumCount="1" showDownArrow="false" autoComplete="false" searchType="substring" key="rental.company"/>

我的 Struts.XML:

  <action name="AjaxAutoCompleteCompanyPOCAction" class="com.kodi.action.jobs.AjaxAutoCompleteCompanyPOCAction" method="retrieveListOfCompany" >
       <result type="json">
           <param name="root">json</param>
       </result>
    </action>

我的行动

 public String retrieveListOfCompany(){
    //if(KodiUtil.isMatch(getCompany())){ // validate special char
        setJson(new HashMap<String, String>()); // create a JSON hashmap
         if(company != null && company.length() > 0) { // check if string is empty
              List<CompanyEntity> companylist = manager.retrieveCompanyName(getCompany());  // retrieve the companies name
              for (CompanyEntity companies : companylist){
                 getJson().put(companies.getCompany_name(),""+companies.getCompany_id());
              }

         }
    return "SUCCESS";

}

到目前为止，代码确实在我的 Action 类中调用了retrieveListOfCompany()，获取了数据，但它没有显示在 JSP 页面上..请帮忙.. 我收到此错误，

No result defined for action com.kodi.action.jobs.AjaxAutoCompleteCompanyPOCAction and result SUCCESS
    at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:375)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:277)
    at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)

但是当我将 struts.xml 设置为

<result name="SUCCESS" type="json">
           <param name="root">json</param>
       </result>

我明白了=(

java.lang.NoSuchMethodError: com.opensymphony.xwork2.ActionContext.get(Ljava/lang/Object;)Ljava/lang/Object;
    at com.googlecode.jsonplugin.JSONResult.execute(JSONResult.java:157)
    at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:373)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:277)
    at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

我为此使用 struts2-dojo-plugin-2.1.8.1.jar

谢谢!

Answer 1

Dojo 插件已从 Struts2 中弃用，但有 JQuery 插件 http://code.google.com/p/struts2-jquery/并展示http://struts.jgeppert.com/struts2-jquery-showcase/index.action .