struts2 adtion 方法的校验一
index.jsp
---------------------------------------------------------------------------------------
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>index page</title>
</head>
<body>
<font color="red">
<s:fielderror></s:fielderror>
</font>
<br/><br/>
doAdd method
<form action="control/manager/employee_doAdd" method="POST">
编号<input type="text" name="employee.empId"><br/>
姓名<input type="text" name="employee.empName"><br/>
手机<input type="text" name="employee.mobile"><br/>
生日<input type="text" name="employee.birthday"><br/>
<input type="submit" value="提交">
</form>
<br/><br/>
doUpdate method
<form action="control/manager/employee_doUpdate" method="POST">
编号<input type="text" name="employee.empId"><br/>
姓名<input type="text" name="employee.empName"><br/>
手机<input type="text" name="employee.mobile"><br/>
生日<input type="text" name="employee.birthday"><br/>
<input type="submit" value="提交">
</form>
</body>
</html>
EmployeeAction.java
-----------------------------------------------------------------------------------------------
package org.taink.struts.action;
import java.util.regex.Pattern;
import org.taink.entity.Employee;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
/**
* struts2 对action中的方法进行校验的分类:
* 1.采用手工编写代码方式实现 a.对action 中的所有方式进行校验,
* 即重写父类ActionSupport中的validate()方法 b.只对action 中指定方式进行校验,需要自定义校验方式.
*
* 2.基于XML 配置方式实现
*
* struts2 对action中的方法校验实现方式:
* 1.需要校验的action 需要继承ActionSupport类,对action中的所有方法进行校验,
* 就重写父类ActionSupport中的validate()方法 ;只对action 中指定方式进行校验,需要自定义校验方式.
* 2.在视图中引用:<%@ taglib uri="/struts-tags" prefix="s" %>标签,
* 并在页面中使用<s:fielderror></s:fielderror>标签
*
* struts2 对action中的方法校验流程:
* 1.类型转换器对请求参数执行类型转换,并将转换后的值赋给action 中的属性
* 2.如果在执行类型转换的过程中出现异常,系统会将异常信息保存到ActionContext,conversionError 拦截器将异常信息添加到fieldErrors里,不管类型转换是否出现异常,都会进入第3步.
* 3.系统通过反射技术先调用action 中的validateXxxx()方法,Xxxx为方法名.
* 4.再调用action中的validate()方法.
* 5.经过上面4步,如果系统中的fieldErrors存在错误信息,
* (即存放错误的集合的size 大于0,系统自动将请求转发至名称为input 的视图.如果fieldErrors 没有任何的错误信息,系统将执行action 中处理方法)
*
* @author taink
*
*/
public class EmployeeAction extends ActionSupport {
private static final long serialVersionUID = 6892944822771610653L;
private Employee employee;
public Employee getEmployee() {
return employee;
}
public void setEmployee(Employee employee) {
this.employee = employee;
}
public String doAdd() {
ActionContext.getContext().put("message", "添加成功");
return "success";
}
public String doUpdate() {
ActionContext.getContext().put("message", "更新成功");
return "success";
}
/*
* 1.此校验方法是自定义的 2.此校验方法只对当前的Action中的方法doAdd()方法进行校验
*/
public void validateDoAdd() {
if (null == this.employee.getEmpId()) {
this.addFieldError("employee.empId", "编号不能为空");
}
if (null == this.employee.getEmpName()
|| "".equals(this.employee.getEmpName())) {
this.addFieldError("employee.empName", "名称不能为空");
}
if (null == this.employee.getMobile()
|| "".equals(this.employee.getMobile())) {
this.addFieldError("employee.mobile", "手机不能为空");
} else {
// 使用正则表达式匹配手机号
if (!Pattern.compile("^1[358]\\d{9}$").matcher(
this.employee.getMobile()).matches()) {
this.addFieldError("employee.mobile", "手机格式不正确");
}
}
if (null == this.employee.getBirthday()) {
this.addFieldError("employee.birthday", "生日不能为空");
}
}
/*
* 1.此校验方法是自定义的 2.此校验方法只对当前的Action中的方法doUpdate()方法进行校验
*/
public void validateDoUpdate() {
if (null == this.employee.getEmpId()) {
this.addFieldError("employee.empId", "编号不能为空");
}
if (null == this.employee.getEmpName()
|| "".equals(this.employee.getEmpName())) {
this.addFieldError("employee.empName", "名称不能为空");
}
if (null == this.employee.getMobile()
|| "".equals(this.employee.getMobile())) {
this.addFieldError("employee.mobile", "手机不能为空");
} else {
if (!Pattern.compile("^1[358]\\d{9}$").matcher(
this.employee.getMobile()).matches()) {
this.addFieldError("employee.mobile", "手机格式不正确");
}
}
if (null == this.employee.getBirthday()) {
this.addFieldError("employee.birthday", "生日不能为空");
}
}
/*
* 1.此校验方法是对父类ActionSupport 的validate 进行重写
* 2.此校验方法对当前的Action中的所有方法都进行校验
*
*/
@Override
public void validate() {
if (null == this.employee.getEmpId()) {
this.addFieldError("employee.empId", "编号不能为空");
}
if (null == this.employee.getEmpName()
|| "".equals(this.employee.getEmpName())) {
this.addFieldError("employee.empName", "名称不能为空");
}
if (null == this.employee.getMobile()
|| "".equals(this.employee.getMobile())) {
this.addFieldError("employee.mobile", "手机不能为空");
} else {
if (!Pattern.compile("^1[358]\\d{9}$").matcher(
this.employee.getMobile()).matches()) {
this.addFieldError("employee.mobile", "手机格式不正确");
}
}
if (null == this.employee.getBirthday()) {
this.addFieldError("employee.birthday", "生日不能为空");
}
}
}