Question

我的简单MVC应用程序存在问题。

dayoff.html
<div id="dayoff_operations" class="big_box_1">
    <form:form modelAttribute="dayOff" enctype="multipart/form-data" action="/dayoff.html" >
        <div style="width: 50%; float: left; margin-top: 0px ">
            <form:label path="forDate" ><spring:message code="dayoff.fordate.label"/></form:label>
            <form:input path="ax_forDate" id="datepicker" style="width:65px" readonly="readonly"/>&nbsp;&nbsp;
        </div>
        <div style="width: 50%; float: right; margin-top: 0px ">
            <form:label path="toDate" ><spring:message code="dayoff.todate.label"/></form:label>
            <form:input path="ax_toDate" id="datepicker2" style="width:65px" readonly="readonly" />&nbsp;&nbsp;
        </div>
        <div style="float: left">
            <form:select cssClass="more" path="dayofftype" items="${dayoffTypes.list}" itemLabel="label" itemValue="value" htmlEscape="false" cssErrorClass="errorsField"/>
            <form:errors path="dayofftype" cssClass="errors"/>
        </div>
        <input type="submit" name="add" value="Add"/>
    </form:form>

这是我的控制器：

@Controller
@RequestMapping("/dayoff")
@SessionAttributes(types = {DayOff.class})
public class DaysOffController {
private Validator validator;
@Autowired
private ReloadableResourceBundleMessageSource messages;

@ModelAttribute("dayoffTypes")
public Map<String, Object> populateDayoffTypes(Locale locale) {
    return Utils.createComboMap(DayoffType.values(), messages, locale);
}

@RequestMapping(method = RequestMethod.GET)
public String setupForm(Model model) {      
    model.addAttribute("dayOff", new DayOff());
    model.addAttribute("cur_period",SessionManager.getCurrentPeriod());
    return "dayoff";
}

@RequestMapping(method = RequestMethod.POST, params = "add")
public String addNewHoliday(@ModelAttribute DayOff dayOff, BindingResult result, ModelMap model) {
    System.out.println("AAA");
    return "/dayoff";
}

单击“添加”按钮时出现错误400：SRVE0295E：报告错误：400出现，服务器控制台上没有信息。我假设它被设置为setupForm（）方法，该方法显示表单并将其压缩到未来的提交。你能指导我吗？

Answer 1

错误400：当MVC无法使用HTML表单中的值填充@ModelAttribute Form时，也会发生SRVE0295E。

例如：

class Form具有原始属性int someCount
您的HTML表单<input>为此原始属性赋值
用户为此null

<input>

您不应使用int，boolean，float等原始类型。

Answer 2

setupForm和addNewHoliday的return语句不同。我认为你想要从两者返回相同的视图名称。正如您可以看到表单以提交它，我假设addNewHoliday返回值“/ dayoff”实际上应该是“dayoff”

Spring MVC和Error 400：SRVE0295E

2 个答案: