src/com/controller/AssignController.java

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package com.controller;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Objects;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import com.util.PageUtil;
import com.util.UploadUtil;

import com.entity.Course;
import com.service.CourseService;
import com.service.TeacherService; 

import com.entity.Assign;
import com.service.AssignService;

@Controller
@RequestMapping("")
public class   AssignController {
	private static final int rows = 10;
	@Autowired
	private CourseService courseService;
	@Autowired
	private TeacherService teacherService;
	@Autowired
	private AssignService assignService;
	
	@RequestMapping("/assignAddjiemian")
	public String assignAddjiemian(HttpServletRequest request)
	{
		int teaid = Integer.parseInt(request.getSession().getAttribute("teaid").toString());
	 	request.setAttribute("courseList", courseService.getList(" and a.teaid="+teaid+"",1, 100));
		return "teacher/assignAdd";
 	}
	@RequestMapping("/assignAdd")
	public String assignAdd(Assign assign,HttpServletRequest request,HttpSession session)
	{
		String asstime=new SimpleDateFormat("yyyy-MM-dd hh:mm").format(new Date());
		assign.setAsstime(asstime);
		boolean flag= assignService.add(assign);
    	if(flag==true)
		{
			request.setAttribute("msg", "作业布置成功");
			return "teacher/assignAdd";
		}
		else
		{
		   request.setAttribute("msg", "作业布置失败!");
		   return "teacher/assignAdd";
		}
 	}
	@RequestMapping("/assignManage")
	public String assignManage(HttpServletRequest request)