struts2自己定义类型转换器

1.1.  struts2自己定义类型转换器

1)        自定类型转换类，继承DefaultTypeConverter类

package com.morris.ticket.conversion;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Map;

import com.opensymphony.xwork2.conversion.impl.DefaultTypeConverter;

public class DateConversion extends DefaultTypeConverter {

         public Object convertValue(Map<String, Object> context, Object value,

                            Class toType) {

                   String[] parameters = (String[]) value;

                   // 从页面中name获得的參数有多个，取第一个

                   String dateStr = parameters[0];

                   SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

                   // 假设要转换的类型是时间类型

                   if (toType == Date.class) {

                            try {

                                     return sdf.parse(dateStr);

                            } catch (ParseException e) {

                                     e.printStackTrace();

                            }

                   }

                   return null;

         }

}

2)        配置自己定义类型转换器，在src文件夹下新建xwork-conversion.properties文件

java.util.Date:com.morris.ticket.conversion.DateConversion