爲控制器配置日期處理

第一步：定義父類

package group.esperanto.action.util;

import java.text.SimpleDateFormat;
import java.util.Locale;
import javax.annotation.Resource;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.context.MessageSource;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;

public class AbstractAction {
	@InitBinder
	public void initBinder(WebDataBinder binder){
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		// 本方法的處理旨在追加一個自定義的轉換編輯器，碰見java.util.Date類型就使用定義好的SimpleDateFormat來格式化處理，
		binder.registerCustomEditor(java.util.Date.class, new CustomDateEditor(sdf, true));  //這裏的true表明容許參數內容爲空
	}
}

第二步：子類中繼承

package group.esperanto.action;

import java.io.IOException;
import java.util.Date;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sound.midi.MidiDevice.Info;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import group.esperanto.action.util.AbstractAction;

@Controller
// 定義該Action的映射路徑
// 該路徑絕對不能重複
@RequestMapping("/pages/emp/*")
public class EmpAction extends AbstractAction {	 //繼承父類
	private	Logger log = Logger.getLogger(EmpAction.class);
	
	@RequestMapping("echo")  //映射方法名 
   public void echo(String msg,Date date){  //第二個參數爲日期類型，將被父類定義的日期格式方法處理
	   Logger.getLogger(EmpAction.class).info(msg);
	   Logger.getLogger(EmpAction.class).info(date);
   }	
}