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department_Id,department_Name,department_location在这个模型表单中，我有三个字段departmentForm作为模型对象。

我使用注释来验证字段。现在，我只想使用不同 jsp 页面中的两个字段 saycreate.jsp和不同 jsp 页面中的一个字段 say getDepartmentById。

当我按下提交按钮时create.jsp，验证正在发生，但在提供正确信息后，它未在此页面中提交原因。

我没有给出一个department_Id由我的 DAO 层自动生成的字段。所以，请帮助我，如何拒绝这个值来执行我的create.jsp页面以在数据库中成功创建部门。

当我打印BindingResult对象时，它显示如下：

Field error in object 'departmentForm' on field 'departmentId': rejected value [null]; 
codes [NotEmpty.departmentForm.departmentId,NotEmpty.departmentId,NotEmpty.java.lang.String,NotEmpty]; 
arguments [org.springframework.context.support.DefaultMessageSourceResolvable: 
codes [departmentForm.departmentId,departmentId]; arguments []; 
default message [departmentId],org.hibernate.validator.constraints.NotEmpty.message},
[Ljava.lang.Class;@4fc4a198,[Ljava.lang.Class;@764d2b11]; 
default message [may not be empty]`

这就是我在控制器中编码的方式：

@RequestMapping(value = "/createDepartment", method = RequestMethod.POST)
public String createEmployee(@Valid DepartmentForm departmentForm,
        BindingResult bindingResult, Map<String, DepartmentForm> model)
        throws Exception {

    if (bindingResult.hasErrors()) {
        System.out.println(bindingResult);
        bindingResult.reject(departmentForm.getDepartmentId());
        return "departmentForm";
    }
    System.out.println("mr ankur jadiy");

    model.put("departmentForm", departmentForm);
    departmentForm.setUpdateStatus('A');
    if (departmentForm.getUpdateStatus() == 'A') {
        departmentServiceImpl
            .actionDecider(convertDeptFormToDeptBO(departmentForm));

    }
    return "Success";
}

我的DepartmentForm代码如下：

package com.nousinfo.tutorial.model;

import javax.validation.constraints.Size;

import org.hibernate.validator.constraints.NotEmpty;

public class DepartmentForm {

    @NotEmpty
    @Size(min = 1, max = 20,message="")
    private String departmentId;
    @NotEmpty
    private String departmentName;

    private String departmentLocation;

    private Character updateStatus;
    public String getDepartmentId() {
        return departmentId;
    }

    public void setDepartmentId(String departmentId) {
        this.departmentId = departmentId;
    }

    public String getDepartmentName() {
        return departmentName;
    }

    public void setDepartmentName(String departmentName) {
        this.departmentName = departmentName;
    }

    public String getDepartmentLocation() {
        return departmentLocation;
    }

    public void setDepartmentLocation(String departmentLocation) {
        this.departmentLocation = departmentLocation;
    }

    public Character getUpdateStatus() {
        return updateStatus;
    }

    public void setUpdateStatus(Character updateStatus) {
        this.updateStatus = updateStatus;
    }
}

我create.jsp的是

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://jakarta.apache.org/taglibs/input-1.0" prefix="input"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags" prefix="s"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Create Department</title>
<link rel="stylesheet" href="css/style.css" type="text/css"></link>
</head>

<body>

    <table width="1254" height="74" border="0" align="center">

        <tr>
            <td width="300" height="68" align="center" bgcolor="#99CCFF"><h2>
                    <span class="style1">Employee Details </span>
                </h2></td>
            <td width="100" height="68" align="center" bgcolor="#FFFFFF"><img
                src="./image/emps.jpg" width="190" height="92" /></td>
        </tr>
    </table>
    <p>
        <br />
    </p>
    <hr size="1" width="786">
    <form:form id="form" method="post" action="/EmployeeWebSpring/departmentController/createDepartment"
        modelAttribute="departmentForm">
        <table>
            <tr>
                <form:hidden path="updateStatus" />
            </tr>

            <tr>
                <td>
                    Department_Name:
                    <font color="red"><form:errors path="departmentName" /></font>
                </td>
            </tr>
            <tr>
                <td><form:input path="departmentName" /></td>
            </tr>

            <tr>
                <td>
                    Department_Location:
                    <font color="red"><form:errors path="departmentLocation" /></font>
                </td>
            </tr>
            <tr>
                <td><form:input path="departmentLocation" /></td>
            </tr>
        </table>

        <br>
        <br />
        <p>&nbsp;</p>
        <br>
        <tr>
            <td><input type="submit" name="method" value="save" /></td>
            <td><input type="submit" name="method" value="cancel" /></td>
        </tr>

        <hr size="1" width="786">
        <p>&nbsp;</p>
    </form:form>
</body>
</html>
4

1 回答 1

0

What the error says is that you're missing value for departmentId, which is not surprising since you defined it as 

@NotEmpty
@Size(min = 1, max = 20,message="")

You don't really need to validate departmentId if it's autogenerated by your code. You probably should remove it from the DepartmentForm, especially since it's not in the form, or at least make it optional.

You can make it mandatory in your business object, but the form backing object should reflect what's in the form.

update

If departmentId is a database-generated id, you should set it as disallowed in your controller's InitBinder:

@InitBinder
public void initBinder(WebDataBinder binder) {
    binder.setDisallowedFields(new String[] { "departmentId" }); 
}
于 2013-01-11T09:24:56.823 回答