src/edu/jmi/controller/TopicController.java

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package edu.jmi.controller;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;

import edu.jmi.model.Topic;
import edu.jmi.model.User;
import edu.jmi.service.TopicService;
import edu.jmi.test.EmptyUtil;

@Controller
public class TopicController {
	@Autowired
	TopicService ts;
	
	//分页显示
	@RequestMapping("/TopicPageAct")
	public ModelAndView TopicPage(
				@RequestParam(defaultValue="1") Integer currentPage,HttpServletRequest request,
				Map<String,Object> map){
			PageHelper.startPage(currentPage,8);
			List<Topic> list=ts.selectAll();
			PageInfo<Topic> pageInfo=new PageInfo<Topic>(list,8);
			map.put("pageInfo", pageInfo);
			return new ModelAndView("views/topic_list");
	} 
	
	//前台分页显示
		@RequestMapping("/ShowTopicAct")
		@ResponseBody
		public PageInfo<Topic> ShowTopicAct(
					@RequestParam(defaultValue="1") Integer currentPage,HttpServletRequest request,	@RequestParam(defaultValue="8") Integer pageSize,
					Map<String,Object> map){
				PageHelper.startPage(currentPage,pageSize);
				List<Topic> list=ts.selectAll();