基于SSM和jQuery的学生管理系统

此篇文章重点介绍使用jQuery来实现前台界面和后台数据的异步传输,因此,只给出action(controller层的代码)
界面很丑,请勿喷…
1.首先,给出我的项目包结构:

po包是实体类包,util是一个工具类(他将负责后台数据向前台界面的输出)mapper包映射包,内包含各种SQL语句以及增删改查等方法,biz(services)包,主要负责业务逻辑的编写,action包就是我们熟知的controller层.
StudentAction代码:

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.action.IStudenAction;
import com.alibaba.fastjson.JSONObject;
import com.biz.IStudentBiz;
import com.po.Clazz;
import com.po.Student;
import com.util.StudentUtil;
@Controller
public class StudentAction implements IStudenAction {
	@Autowired
	private IStudentBiz studentBiz;
	public IStudentBiz getStudentBiz() {
		return studentBiz;
	}
	public void setStudentBiz(IStudentBiz studentBiz) {
		this.studentBiz = studentBiz;
	}
	@RequestMapping(value="save_Student.do")
	public String save(HttpServletRequest request,
			HttpServletResponse response, Student st) {
		int row = studentBiz.save(st);
		if (row > 0) {
			StudentUtil.printString(response, ""+1);
		}else {
			StudentUtil.printString(response, ""+0);
		}
		return null;
	}
	@RequestMapping(value="update_Student.do")
	public String update(HttpServletRequest request,
			HttpServletResponse response, Student st) {
		int row = studentBiz.update(st);
		if (row > 0) {
			StudentUtil.printString(response, ""+1);
		}else {
			StudentUtil.printString(response, ""+0);
		}
		return null;
	}
	@RequestMapping(value="delById_Student.do")
	public String delById(HttpServletRequest request,
			HttpServletResponse response, Integer sid) {
		int row = studentBiz.delById(sid);
		if (row > 0) {
			StudentUtil.printString(response, ""+1);
		}else {
			StudentUtil.printString(response, ""+0);
		}
		return null;
	}
	@RequestMapping(value="findById_Student.do")
	public String findById(HttpServletRequest request,
			HttpServletResponse response, Integer sid) {
		Student st = studentBiz.findById(sid);
		//将学生对象转为json字符串
		String jsonstr = JSONObject.toJSONString(st);
		System.out.println(jsonstr);
		StudentUtil.printString(response, jsonstr);
		return null;
	}
	@RequestMapping(value="findAll_Student.do")
	public String findAll(HttpServletRequest request,
			HttpServletResponse response) {
		List lsst = studentBiz.findAll();
		String jsonstr = JSONObject.toJSONString(lsst);
		StudentUtil.printString(response, jsonstr);
		return null;
	}
	@RequestMapping(value="doinit_Student.do")
	public String doinit(HttpServletRequest request,
			HttpServletResponse response) {
		List lsca = studentBiz.doinit();
		String jsonstr = JSONObject.toJSONString(lsca);
		StudentUtil.printString(response, jsonstr);
		return null;
	}
	@RequestMapping(value="findPageAll_Student.do")
	public String findPageAll(HttpServletRequest request,
			HttpServletResponse response, Integer page, Integer rows) {
		page = page==null?1:page;
		rows=rows==null?5:rows;
		if (rows > 20) {
			rows = 20;//每页最多20个值
		}
		//此处在biz(service)层查出总行数,与传进来的rows做运算得出最大页数
		int maxPage=studentBiz.findMaxPage(rows);
		if (page > maxPage) {
			page = maxPage;
		}
		List lsst = studentBiz.findPageAll(page, rows);
		Map map = new HashMap();
		map.put("page", page);
		map.put("rows", rows);
		map.put("lsst", lsst);
		map.put("maxpage", maxPage);
		String jsonstr = JSONObject.toJSONString(map);
		StudentUtil.printString(response, jsonstr);
		return null;
	}
}

util包中的StudentUtil代码:

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletResponse;
public class StudentUtil {
	/**
	 * 输出字符串
	 */
	public static void printString(HttpServletResponse response,String str){
		response.setCharacterEncoding("utf-8");
		PrintWriter out = null;
		try {
			out = response.getWriter();
			out.print(str);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally{
			out.flush();
			out.close();
		}	
	}
}

前台界面代码student.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>


  
    
    
    
	
	
	    
	
	
	
	 
	

  
    
学生列表
    

    

    
     
 

    

      

      
      

      	  
      	
      

      	
      

      	
      
每页
        
      
      条记录
      
      
跳转到第
        
        
页
	
      
1/1页
    
  
    
    

    

      

        

          
学生管理
        
        

          
姓名
          

        
        

          
性别
          

          	男 
          	女 
          
        
        

          
地址
          

        
        

          
生日
          
          

        
        

          
班级
          

          	
          	
          
        
        

          

           
           
          
        
      
  

需要注意的是,学生日期这有一个辅助显示日期的属性需要处理!请自行解决!