在提交时清空字段但在控制器端填充对象

时间:2017-04-05 13:52:21

标签: spring-mvc spring-boot thymeleaf

当我第一次显示我的页面时,该字段的值得正确。但是当我在下面的addCouloir方法中提交表单时,该字段显示为空。然而,topologie实例在addCouloir方法的最后一行仍然很有价值(我已经在调试模式下检查了对象)。

拓扑对象的同一实例的其他字段也很好地显示在同一个上。所以它可能与select/disabled种字段

有关
@Controller
@SessionAttributes(value = "topologie", types = { Topologie.class })
@RequestMapping("/bus/topologieInstanceCouloir")
public class TopologieInstanceCouloirController {

...
@RequestMapping(method = RequestMethod.POST, params = { "addCouloir" })
    public String addCouloir(final Topologie topologie, final Model model,
            final HttpServletRequest req) throws IOException {
        final String param = req.getParameter("addCouloir");
        logger.info("REST request to add Couloir : {}", param);

        final Matcher matcher = patternPartitionInstance.matcher(param);
        if (matcher.find()) {
            final Integer partitionId = Integer.valueOf(matcher.group(1));
            final Integer instanceId = Integer.valueOf(matcher.group(2));
            logger.info("Add a new Couloir on Instance {} on partition  {}",
                    instanceId, partitionId);
            topologie.getPartitions().get(partitionId.intValue())
            .getInstances().get(instanceId).getCouloirs()
            .add(new Couloir());
        }

        return VIEW_TOPOLOGIE_INSTANCECOULOIR;
    }

html / thymeleaf topologieInstanceCouloir.html对应代码:

        <form action="#" th:action="@{/bus/topologieInstanceCouloir}"
            th:object="${topologie}" method="post" class="form-horizontal">
...
            <div class="form-group"
                th:if="${#bools.isFalse(topologie.isPassageCvs)}">
                <label th:for="*{environnement}" class="col-sm-2 control-label">Environnement</label>
                <div class="col-sm-10">
                    <select th:field="*{environnement}" class="form-control"
                        th:disabled="disabled">
                        <option th:each="environnement : ${allEnvironnement}"
                            th:value="${environnement}" th:text="${environnement}">...</option>
                    </select>
                </div>
            </div>

按钮:

<div class="col-sm-10">
    <button type="submit" class="btn btn-default"
        name="addCouloir"
        th:value="'partitions[' + ${rowPartitionStat.index} + '].instances[' + ${rowInstanceStat.index} + ']'">Ajouter
        couloir</button>
</div>

Topologie对象相关:

public class Topologie {
    private String environnement;
...
    public String getEnvironnement() {
        return environnement;
    }

    public void setEnvironnement(String environnement) {
        this.environnement = environnement;
    }
}

1 个答案:

答案 0 :(得分:0)

已被禁用的元素&#34;不要提交他们的数据。由于拓扑结构在会话中(@SessionAttributes(value = "topologie", types = { Topologie.class })),这意味着无论选择的值是什么,它都会保留原始值。

(我不完全确定你的意思&#34;很有价值&#34;)