spring 页面跳转不到对应的Controller方法

来源：互联网发布：儿童注意力训练软件编辑：程序博客网时间：2024/05/21 10:09

错误：如标题

问题描述：

<div class="control-group"><label for="resOpsList" class="control-label">对资源的操作：</label><div class="controls"><c:forEach items="${resOpMap}" var="map"><c:out value="${map.key}" /><br><c:forEach items="${map.value}" var="resOp"><input type="checkbox" name="resOps" value="${resOp.id}" <c:if test="${resOp.isSelect==1}">checked="true"</c:if>/><c:out value="${resOp.op.name}" /></c:forEach><br><br></c:forEach></div></div>

点击提交时无法跳转到下面的Controller方法：

/** * 给角色分配资源操作 *  * @return */@RequestMapping(value = "addResAndOp", method = RequestMethod.POST)public String addResAndOp(@Valid @ModelAttribute("role") Role role,/** * 给角色分配资源操作 *  * @return */@RequestMapping(value = "addResAndOp", method = RequestMethod.POST)public String addResAndOp(@Valid @ModelAttribute("role") Role role,@RequestParam(value = "resOps") List<Long> selectIds,RedirectAttributes redirectAttributes) {role.getResOpList().clear();for (Long id : selectIds) {role.getResOpList().add(new ResourceOp(id));}roleService.addRole(role);return "redirect:/admin/role";} List<Long> selectIds,RedirectAttributes redirectAttributes) {role.getResOpList().clear();for (Long id : selectIds) {role.getResOpList().add(new ResourceOp(id));}roleService.addRole(role);return "redirect:/admin/role";}

原因：jsp中checkBox属性name的值原本为resOPList,下面方法的

@RequestParam(value = "resOps")的resOp原本为resOpList，

错误信息是：Field error in object 'role' on field 'resOpList': rejected value [8,9,10]; codes [typeMismatch.role.resOpList,typeMismatch.resOpList,typeMismatch.java.util.List,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [role.resOpList,resOpList]; arguments []; default message [resOpList]]; defaul........

解决方法是把resOpList改为一个另外的名称。

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