java-Struts 2验证不适用于动态表单字段
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我正在开发一个用户可以输入多个地址的应用程序.我正在使用Struts2 XML验证,并且对于那些字段[地址(国家(地区,城市,街道)),我已经使用了访客验证器,但是它不起作用.
验证在其余字段上工作正常.
谁能建议可能是什么问题？
EmployeeForm.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!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>Add Employee</title>
<script language="javascript">
function addRow(tableID) {
var table = document.getElementById(tableID);
var rowCount = table.rows.length;
var row = table.insertRow(rowCount);
var counts=rowCount-1;
var cell1 = row.insertCell(0);
var street = document.createElement("input");
street.type = "text";
street.name="employeeModel.addresses["+counts+"].street";
cell1.appendChild(houseNum);
var cell2 = row.insertCell(1);
var city = document.createElement("input");
city.type = "text";
city.name="employeeModel.addresses["+counts+"].city";
cell2.appendChild(city);
var cell3 = row.insertCell(2);
var country = document.createElement("input");
country.type = "text";
country.name="employeeModel.addresses["+counts+"].country";
cell3.appendChild(country);
}
</script>
</head>
<body>
<s:form action="addEmployee.action" method="post" >
<s:textfield label="Name" name="employeeModel.employeeName" size="20" />
<table id="addressesTable" width="350px" border="1">
<tr>
<td>Street</td>
<td>City</td>
<td>Country</td>
</tr>
<tr>
<td><input type="text" name="employeeModel.addresses[0].street" /></td>
<td><input type="text" name="employeeModel.addresses[0].city" /></td>
<td><input type="text" name="employeeModel.addresses[0].country" /></td>
</tr>
</table>
<input type="button" value="Add More" onclick="addRow('addressesTable')" />
<s:submit />
</s:form>
</body>
</html>
EmployeeAction-Validation.xml
<validators>
<field name="employeeModel.employeeName">
<field-validator type="requiredstring">
<param name="trim">true</param>
<message>Name is required.</message>
</field-validator>
</field>
<field name="employeeModel.addresses" >
<field-validator type="visitor">
<message></message>
</field-validator>
</field>
</validators>
EmployeeModel-Validation.xml
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN"
"http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">
<validators>
<field name="employeeModel.addresses" >
<field-validator type="visitor">
<message></message>
</field-validator>
</field>
</validators>
EmployeeAction.java
package com.action;
import com.model.EmployeeModel;
import com.opensymphony.xwork2.ActionSupport;
public class EmployeeAction extends ActionSupport{
private static final long serialVersionUID = 1L;
private EmployeeModel employeeModel;
public String execute() {
return SUCCESS;
}
public EmployeeModel getEmployeeModel() {
return employeeModel;
}
public void setEmployeeModel(EmployeeModel employeeModel) {
this.employeeModel = employeeModel;
}
}
EmployeeModel.java
package com.model;
import java.io.Serializable;
import java.util.Date;
import java.util.List;
public class EmployeeModel implements Serializable{
private static final long serialVersionUID = -484846216250373240L;
private String employeeName;
private List<AddressModel> addresses;
public String getEmployeeName() {
return employeeName;
}
public void setEmployeeName(String employeeName) {
this.employeeName = employeeName;
}
public List<AddressModel> getAddresses() {
return addresses;
}
public void setAddresses(List<AddressModel> addresses) {
this.addresses = addresses;
}
}
AddressModel.java
package com.model;
import java.io.Serializable;
public class AddressModel implements Serializable{
private static final long serialVersionUID = 6965346469594926268L;
private String country;
private String city;
private String street;
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
}
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default">
<action name="addEmployee" class="com.action.EmployeeAction" >
<result name="success">/Result.jsp</result>
<result name="input">/EmployeeForm.jsp</result>
</action>
</package>
</struts>
解决方法:
您有一个EmployeeModel对象,其中有多个AddressModel对象.
这意味着在Action验证文件中,您需要对EmployeeModel属性使用简单验证,而对AddressModel对象使用访客验证.
您正确地说,必须在此处通过访问者验证来验证AddressModel：
<field name="employeeModel.addresses" >
<field-validator type="visitor">
但是,然后,您正在尝试对EmployeeModel使用验证文件,而不是AddressModel的验证文件！
代替
EmployeeModel-Validation.xml
你需要使用
AddressModel-Validation.xml
在其内部,您需要验证简单的属性,而无需在它们前面添加任何employeeModel(因为此验证可以由许多不同的验证文件供访问者使用,它们具有包含AddressModel的不同操作和模型,而无需关心其父级对象)：
<!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN"
"http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">
<validators>
<field name="country">
<field-validator type="requiredstring">
<param name="trim">true</param>
<message>Country is required.</message>
</field-validator>
</field>
</validators>
编辑：
您还忘记了命名AddressModel对象的属性.添加它们：
<td><input type="text" name="employeeModel.addresses[0].street" /></td>
<td><input type="text" name="employeeModel.addresses[0].city" /></td>
<td><input type="text" name="employeeModel.addresses[0].country" /></td>
并在您的JavaScript代码中执行相同的操作.
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