src/com/ischoolbar/programmer/servlet/TeacherServlet.java

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package com.ischoolbar.programmer.servlet;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
/**
 * 教师信息管理servlet类
 */
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

import com.ischoolbar.programmer.dao.StudentDao;
import com.ischoolbar.programmer.dao.TeacherDao;
import com.ischoolbar.programmer.model.Page;
import com.ischoolbar.programmer.model.Student;
import com.ischoolbar.programmer.model.Teacher;
import com.ischoolbar.programmer.util.SnGenerateUtil;

public class TeacherServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = -8421947373714720118L;
	
	public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException{
		doPost(request, response);
	}
	public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException{
		String method = request.getParameter("method");
		if("toTeacherListView".equals(method)){
			teacherList(request,response);
		}else if("AddTeacher".equals(method)){
			addTeacher(request,response);
		}else if("TeacherList".equals(method)){
			getTeacherList(request,response);
		}else if("EditTeacher".equals(method)){
			editTeacher(request,response);
		}else if("DeleteTeacher".equals(method)){
			deleteTeacher(request,response);
		}
	}
	private void deleteTeacher(HttpServletRequest request,
			HttpServletResponse response) {
		// TODO Auto-generated method stub
		String[] ids = request.getParameterValues("ids[]");
		String idStr = "";
		for(String id : ids){
			idStr += id + ",";
		}
		idStr = idStr.substring(0, idStr.length()-1);
		TeacherDao teacherDao = new TeacherDao();
		if(teacherDao.deleteTeacher(idStr)){
			try {