作者主页:源码空间codegym
简介:Java领域优质创作者、Java项目、学习资料、技术互助
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基于ssm的学籍管理系统,学生选课系统,学生管理系统
本系统有管理员、老师、学生三种权限
管理员有:专业管理、班级管理、学生管理、老师管理、课程管理、开课管理、用户管理、审批管理
老师有:成绩管理、学生查询、申请审批
学生有:选课管理、成绩查询、申请管理
本项目用的是ssm框架
1.运行环境:最好是java jdk1.8,我们在这个平台上运行的。其他版本理论上也可以。
2.IDE环境:IDEA,Eclipse,Myeclipse都可以。推荐IDEA;
3.tomcat环境:Tomcat7.x,8.X,9.x版本均可
4.硬件环境:windows7/8/10 4G内存以上;或者Mac OS;
5.是否Maven项目:是;查看源码目录中是否包含pom.xml;若包含,则为maven项目,否则为非maven.项目
6.数据库:MySql5.7/8.0等版本均可;
后台框架:Spring MVC、MyBatis
数据库:MySQL
环境:JDK8、TOMCAT、IDEA
1.使用Navicati或者其它工具,在mysql中创建对应sq文件名称的数据库,并导入项目的sql文件;
2.使用IDEA/Eclipse/MyEclipse导入项目,修改配置,运行项目;
3.将项目中config-propertiesi配置文件中的数据库配置改为自己的配置,然后运行;
idea导入源码空间站顶目教程说明(Vindows版)-ssm篇:
http://mtw.so/5MHvZq
源码地址:http://codegym.top。
CaptchaController
package com.niudada.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Random;
@Controller
@RequestMapping("/captcha")
public class CaptchaController {
private char[] codeSequence = {'A', '1', 'B', 'C', '2', 'D', '3', 'E', '4', 'F', '5', 'G', '6', 'H', '7', 'I', '8', 'J',
'K', '9', 'L', '1', 'M', '2', 'N', 'P', '3', 'Q', '4', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z'};
@RequestMapping("/code")
public void getCode(HttpServletResponse response, HttpSession session) throws IOException {
int width = 80;
int height = 37;
Random random = new Random();
//设置response头信息
//禁止缓存
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
//生成缓冲区image类
BufferedImage image = new BufferedImage(width, height, 1);
//产生image类的Graphics用于绘制操作
Graphics g = image.getGraphics();
//Graphics类的样式
g.setColor(this.getColor(200, 250));
g.setFont(new Font("Times New Roman", 0, 28));
g.fillRect(0, 0, width, height);
//绘制干扰线
for (int i = 0; i < 40; i++) {
g.setColor(this.getColor(130, 200));
int x = random.nextInt(width);
int y = random.nextInt(height);
int x1 = random.nextInt(12);
int y1 = random.nextInt(12);
g.drawLine(x, y, x + x1, y + y1);
}
//绘制字符
String strCode = "";
for (int i = 0; i < 4; i++) {
String rand = String.valueOf(codeSequence[random.nextInt(codeSequence.length)]);
strCode = strCode + rand;
g.setColor(new Color(20 + random.nextInt(110), 20 + random.nextInt(110), 20 + random.nextInt(110)));
g.drawString(rand, 13 * i + 6, 28);
}
//将字符保存到session中用于前端的验证
session.setAttribute("captcha", strCode.toLowerCase());
g.dispose();
ImageIO.write(image, "JPEG", response.getOutputStream());
response.getOutputStream().flush();
}
public Color getColor(int fc, int bc) {
Random random = new Random();
if (fc > 255)
fc = 255;
if (bc > 255)
bc = 255;
int r = fc + random.nextInt(bc - fc);
int g = fc + random.nextInt(bc - fc);
int b = fc + random.nextInt(bc - fc);
return new Color(r, g, b);
}
}
ClazzController
package com.niudada.controller;
import com.niudada.entity.Clazz;
import com.niudada.entity.Subject;
import com.niudada.service.ClazzService;
import com.niudada.service.SubjectService;
import com.niudada.utils.MapControl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import java.util.Map;
@Controller
@RequestMapping("clazz")
public class ClazzController {
private static final String LIST = "clazz/list";
private static final String ADD = "clazz/add";
private static final String UPDATE = "clazz/update";
@Autowired
private ClazzService clazzService;
@Autowired
private SubjectService subjectService;
//跳转添加页面
@GetMapping("/add")
public String create(ModelMap modelMap) {
//查询所有的专业,存储到request域
List<Subject> subjects = subjectService.query(null);
modelMap.addAttribute("subjects", subjects);
return ADD;
}
//添加操作
@PostMapping("/create")
@ResponseBody
public Map<String, Object> create(@RequestBody Clazz clazz) {
int result = clazzService.create(clazz);
if (result <= 0) {
return MapControl.getInstance().error().getMap();
}
return MapControl.getInstance().success().getMap();
}
//根据id删除
@PostMapping("/delete/{id}")
@ResponseBody
public Map<String, Object> delete(@PathVariable("id") Integer id) {
int result = clazzService.delete(id);
if (result <= 0) {
return MapControl.getInstance().error().getMap();
}
return MapControl.getInstance().success().getMap();
}
//批量删除
@PostMapping("/delete")
@ResponseBody
public Map<String, Object> delete(String ids) {
int result = clazzService.delete(ids);
if (result <= 0) {
return MapControl.getInstance().error().getMap();
}
return MapControl.getInstance().success().getMap();
}
//修改
@PostMapping("/update")
@ResponseBody
public Map<String, Object> update(@RequestBody Clazz clazz) {
int result = clazzService.update(clazz);
if (result <= 0) {
return MapControl.getInstance().error().getMap();
}
return MapControl.getInstance().success().getMap();
}
//根据id查询,跳转修改页面
@GetMapping("/detail/{id}")
public String detail(@PathVariable("id") Integer id, ModelMap modelMap) {
//查询所有的专业
List<Subject> subjects = subjectService.query(null);
//查询出要修改的班级的信息
Clazz clazz = clazzService.detail(id);
//将查询出来的数据存储到request域,实现表单回显
modelMap.addAttribute("clazz", clazz);
modelMap.addAttribute("subjects", subjects);
return UPDATE;
}
//查询所有
@PostMapping("/query")
@ResponseBody
public Map<String, Object> query(@RequestBody Clazz clazz) {
//查询所有的班级
List<Clazz> list = clazzService.query(clazz);
//查询所有的专业
List<Subject> subjects = subjectService.query(null);
//设置关联
list.forEach(entity -> {
subjects.forEach(subject -> {
//判断班级表中subjectId与专业表的id是否一致
if (entity.getSubjectId() == subject.getId()) {
entity.setSubject(subject);
}
});
});
//查询班级总数
Integer count = clazzService.count(clazz);
return MapControl.getInstance().success().page(list, count).getMap();
}
//跳转列表页面
@GetMapping("/list")
public String list() {
return LIST;
}
}