java - struts2从2.3.16更新到2.3.32(修复S2-045)后，JSP文件无法解析某些Object的字段

Question

最近我们修复了struts2的'S2-045'问题。我更新了所有struts2相关的jar文件，包括freemarker、ognl、xWork等。我使用 tomcat8 部署我的动态 Web 项目。启动 tomcat 服务器时没有任何异常。但似乎出现了一些问题:一些值(从数据库获取)应该显示在jsp页面上不再显示。没有抛出异常。我还可以看到我已经在 Action Classes 中正确获取了这些对象。

<小时/>以下是一些示例

<小时/>

    // index.jsp ----- here is the list I want to show on the page.
    // the list is the type of List<News> (Class News is my bussiness Class).
    // I want to get the 'fTitle' and 'fCreatetime_s' from 'News' but they 
    //     do not show up! (This used to be working very well.)
    <s:bean name="org.ulibrary.web.Getarclist">
      <s:iterator value="list">
        <li>
            <span class="listTitle">
                 <a target="_blank" href="ViewArc.action?   uuid=${UUID}">${fTitle}</a>
             </span>
            <span class="listDate">${fCreatetime_s}</span>
        </li>
      </s:iterator>
    </s:bean>
    //=================================================================

以下是News.java相关字段id

    // News.java (**just some ralated fields**)
    class News{
        @Id
        @GeneratedValue(generator = "system-uuid")
        @GenericGenerator(name = "system-uuid", strategy = "uuid")
        @Column(name = "f_uuid", length = 32, unique = true)
        private String UUID;

        @Column(name = "f_title", length = 200)
        private String fTitle; 

        @Transient
        private String fCreatetime_s;

        public String getUUID() {
            return UUID;
        }
        public void setUUID(String uuid) {
            UUID = uuid;
        }

        public String getFTitle() {
            return fTitle;
        }


        public void setFTitle(String title) {
            fTitle = title;
        }

        public String getFCreatetime_s() {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            return formatter.format(Long.valueOf(fCreatetime));
        }


        public void setFCreatetime_s(String createtime_s) {
            fCreatetime_s = createtime_s;
        }
    }  

然后是GetarcList.java

    //GetarcList.java (just include some related fields)
    class GetarcList{
        private List list;

        public void setList(List list) {
            this.list = list;
        }

        //!!!!!!$$$$$$$$--- Attention -----$$$$$$$$$!!!!!!!!!!!
        // this method returns a List<News> , I can successfully get every value of 'News' in the list
        public List getList() throws AuctionException{
            String orderby_str = (String) OrderByMap.get(String.valueOf(orderby));
            list = webTagManager.getArcList(row, typeid, titlelen, infolen, orderby_str + " " + orderway);
            return list;
         }

    }

我认为这可能是由 OGNL 或 JSP 相关的 jar 文件引起的。我在 index.jsp 或 java 文件中没有发现任何问题。

Answer 1

您需要按以下格式使用 getter/setter。只有一个开头小写字母的属性不是大写的。

    public String getfTitle() {
        return fTitle;
    }


    public void setfTitle(String title) {
        fTitle = title;
    }