我有一个带有日期字段的简单 POJO。我想将对象与表单中的值绑定(bind)。
在表单中，我使用的是日期格式为 ("dd/mm/yyyy")
的 jquery ui datepicker 我有 console.log 值，它是一个字符串:13-11-2014
我正在使用 spring 4.0.7
我依赖于 joda-time 2.5

我得到这个异常:

Failed to convert property value of type 'java.lang.String' to required type 'java.util.Date' for property 'endDate'; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type java.lang.String to type @org.springframework.format.annotation.DateTimeFormat java.util.Date for value '22-11-2014'; nested exception is java.lang.IllegalArgumentException: Invalid format: "22-11-2014" is malformed at "-11-2014"]

我的 POJO:

    package gr.gsis.announcement.model;


    import java.io.Serializable;
    import java.util.Date;

    import org.springframework.format.annotation.DateTimeFormat;

    public class Announcement implements Serializable{

        private static final long serialVersionUID = -1984554807132781312L;

        private int id;
        private String title;
        private String bodyText;

        @DateTimeFormat(pattern = "dd/MM/yyyy")
        private Date startDate;

        @DateTimeFormat(pattern = "dd/MM/yyyy")
        private Date endDate;

        private boolean activeFlag;

        public Announcement() {

        }

        public Announcement(int id, String title, Date startDate, Date endDate,
                boolean activeFlag) {
            this.id = id;
            this.title = title;
            this.startDate = startDate;
            this.endDate = endDate;
            this.activeFlag = activeFlag;
        }


        public int getId() {
            return id;
        }

        public void setId(int id) {
            this.id = id;
        }

        public String getTitle() {
            return title;
        }

        public void setTitle(String title) {
            this.title = title;
        }

        public String getBodyText() {
            return bodyText;
        }

        public void setBodyText(String bodyText) {
            this.bodyText = bodyText;
        }

        public Date getStartDate() {
            return startDate;
        }

        public void setStartDate(Date startDate) {
            this.startDate = startDate;
        }

        public Date getEndDate() {
            return endDate;
        }

        public void setEndDate(Date endDate) {
            this.endDate = endDate;
        }

        public boolean getActiveFlag() {
            return activeFlag;
        }

        public void setActiveFlag(boolean activeFlag) {
            this.activeFlag = activeFlag;
        }

        @Override
        public String toString() {
            return "Announcement [id=" + id + ", title=" + title + ", bodyText="
                    + bodyText + ", startDate=" + startDate + ", endDate="
                    + endDate + ", activeFlag=" + activeFlag + "]";
        }

我的 Controller :

    package gr.gsis.announcement.controller;

    import gr.gsis.announcement.model.Announcement;

    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;

    @Controller
    public class AnnouncementController {

        @RequestMapping("/")
        public String welcome(Model model) {
            model.addAttribute("greeting", "Welcome");

            return "welcome";

        }

        @RequestMapping(value="/create", method = RequestMethod.GET)
        public String getAnnouncementForm(Model model) {

            Announcement announcement = new Announcement();

            model.addAttribute("announcement", announcement);

            return "announcementForm";
        }

        @RequestMapping(value = "/create", method = RequestMethod.POST)
        public String processAnnouncement(@ModelAttribute("announcement") Announcement announcement) {

            System.out.println(announcement);

            return "announcementForm";
        }
    }

我的表单 JSP:

    <h2>Insert Announcement</h2>

        <form:form method="post" commandName="announcement">

            <div>
                <form:label path="title">Title</form:label>
                <form:input path="title" name="title" type="text"/>
            </div>

            <div>
                <form:label path="startDate">Start Date</form:label>
                <form:input path="startDate" cssClass="datepicker start"  name="startDate" type="text"/>
            </div>

            <div>
                <form:label path="endDate">End Date</form:label>
                <form:input path="endDate" cssClass="datepicker end" name="endDate" type="text"/>
            </div>

            <div>
                <form:label path="activeFlag">Active</form:label>
                <form:checkbox path="activeFlag" name="activeFlag"/>
            </div>


            <div>
                <input type="submit" class="button" value="Save" />
            </div>

        </form:form>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"></script>
    <script>
        $(function() {
            $( ".datepicker" ).datepicker({ dateFormat: 'dd-mm-yy' });


        });

我做错了什么？

提前致谢

最佳答案

您的日期格式与输入不匹配

@DateTimeFormat(pattern = "dd/MM/yyyy")

应该是

@DateTimeFormat(pattern = "dd-MM-yyyy")

关于java - 无法使用 @DateTimeFormat(模式 ="dd/MM/yyyy")转换 java.util.Date 中的字符串，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26864957/