java 带有 Spring MVC 的 jQuery datepicker - 将日期从视图传递到控制器发送空值
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jQuery datepicker with Spring MVC - Passing date from view to controller sends null
提问by Full Stack Developer - Java
After submitting the form , I see all the values being passed properly to the controller except date which is passed as null(The date selection in the form enters a proper date in the input field) I tried adding but it did not help. I also tried removing "path" and replacing it with "name" in the "" but it throws error saying "path" attribute is missing. I tried following but no luck-
1. In spring web mvc application date value is received as NULL in controller after reading from date-picker on jsp page
2. http://blog.teamextension.com/date-binding-in-spring-mvc-1321
提交表单后，我看到所有值都正确传递给控制器，除了作为 null 传递的日期（表单中的日期选择在输入字段中输入正确的日期）我尝试添加，但没有帮助。我还尝试删除“路径”并将其替换为“”中的“名称”，但它会引发错误，指出缺少“路径”属性。我尝试以下，但没有luck-
1.在弹簧Web MVC应用程序的日期值被接收作为NULL在控制器从日期选择器读jsp页面上后
2. http://blog.teamextension.com/date-binding-in-spring -mvc-1321
jQuery:
$(document).ready(function() {
$("#datepicker").datepicker({dateFormat:"yy-mm-dd"});
});
jQuery：
$(document).ready(function() {
$("#datepicker").datepicker({dateFormat:"yy-mm-dd"});
});
JSP:
JSP：
<div class="plLabelSearch" id="hiddenField">Due Date:</div>
<div class="plinput"><form:input type="text" id="datepicker" path="dueDate" placeholder="yyyy-mm-dd"/></div>
Model:
模型：
@Column(name = "DUE_DATE")
@DateTimeFormat(pattern = "yyyy/mm/dd")
private Date dueDate;
Controller:
控制器：
@RequestMapping(value="/lock", method = RequestMethod.POST)
public @ResponseBody Status lockDevice(@ModelAttribute("adminTransaction") @Validated AdminTransaction adminTransaction, BindingResult result, Model model, Locale locale,Map<String, Object> map, HttpServletRequest request) {
try {
/*.......CODE.........*/
adminTransactionDO.setDueDate(adminTransaction.getDueDate());
/*.......CODE.........*/
}
return new Status("success", "Transaction inserted Successfully !");
} catch (Exception e) {
return new Status("error", e.toString());
}
}
采纳答案by Kuldeep S Chauhan
It looks like your :
它看起来像你的：
@Column(name = "DUE_DATE")
@DateTimeFormat(pattern = "yyyy/mm/dd")
private Date dueDate;
Is the problem. Spring is unable to convert it into Date.
是问题。Spring 无法将其转换为 Date。
Instead try
而是尝试
private String dueDate;
回答by Full Stack Developer - Java
I resolved the issue by passing the date in RequestParam to controller:
我通过将 RequestParam 中的日期传递给控制器解决了这个问题：
public @ResponseBody Status lockDevice(@ModelAttribute("adminTransaction") @Validated AdminTransaction adminTransaction, BindingResult result, Model model, Locale locale,Map<String, Object> map, HttpServletRequest request, @RequestParam @DateTimeFormat(pattern="yyyy-MM-dd") Date dueDate) {
try {
/*.......CODE.........*/
SimpleDateFormat dt1 = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
Date date = dt1.parse(dt1.format(dueDate));
adminTransactionDO.setDueDate(date);
/*.......CODE.........*/
}
return new Status("success", "Transaction inserted Successfully !");
} catch (Exception e) {
return new Status("error", e.toString());
}
}
回答by geobudex
You could define a transient entity fields for holding the date in String format(Transient are fields that do not participate in persistence and their values are never stored in the database). Then map this field to the path attribute of the input fields of the form in the view. Using the SimpleDateFormat utility within the controller you could convert the date string value into actual date format to be stored into the database.
您可以定义一个临时实体字段来保存字符串格式的日期（临时字段是不参与持久性的字段，它们的值永远不会存储在数据库中）。然后将此字段映射到视图中表单的输入字段的路径属性。使用控制器中的 SimpleDateFormat 实用程序，您可以将日期字符串值转换为要存储到数据库中的实际日期格式。
MODAL
莫代尔
@Column(name = "DUE_DATE")
@DateTimeFormat(pattern = "yyyy/mm/dd")
private Date dueDate;
@Transient
private String dueDateString;
//Your getters, setters and the rest
JSP
JSP
<div class="plinput"><form:input type="text" id="datepicker"
path="dueDateString" placeholder="yyyy/mm/dd"/></div>
CONTROLLER
控制器
@RequestMapping(value="/lock", method = RequestMethod.POST)
public @ResponseBody Status lockDevice(@ModelAttribute("adminTransaction") @Validated AdminTransaction adminTransaction, BindingResult result, Model model, Locale locale,Map<String, Object> map, HttpServletRequest request) {
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
try {
Date dueDateVal;
dueDateVal = dateFormat.parse(adminTransaction.getDueDateString());
adminTransaction.setDueDate(dueDateVal);
} catch (ParseException e) {
e.printStackTrace();
}
try {
/*.......CODE.........*/
adminTransactionDO.setDueDate(adminTransaction.getDueDate());
/*.......CODE.........*/
}
return new Status("success", "Transaction inserted Successfully !");
} catch (Exception e) {
return new Status("error", e.toString());
}
}
回答by Arun
You can try this
你可以试试这个
<div class="plLabelSearch" id="hiddenField">Due Date:</div>
<div class="plinput"><form:input type="date" id="datepicker"/></div>
In your javascript use
在你的 javascript 中使用
var date = document.getElementbyId("datepicker").value;
if you want the date to be sent to servlet do as follows...
如果您希望将日期发送到 servlet，请执行以下操作...
<form name="dateform" action="ServletName" method="post">
<input type="date" name="InputDate" id="datepicker"/>
<input type="submit" value="Submit"></form>
in your servlet post method....
在您的 servlet post 方法中....
String date = request.getParameter("InputDate");
