基于SSM实现学生管理系统

本文实例为大家分享了SSM实现学生管理系统的具体代码，供大家参考，具体内容如下

概述

基于Spring + Spring MVC 的学生管理系统，使用Maven进行包管理。

主要代码

@RequestMapping("/student")
@Controller
public class StudentController {

@Autowired
private StudentService studentService;
@Autowired
private ClazzService clazzService;
/**
* 学生列表页
* @param model
* @return
*/
@RequestMapping(value="/list",method=RequestMethod.GET)
public ModelAndView list(ModelAndView model){
model.setViewName("student/student_list");
List<Clazz> clazzList = clazzService.findAll();
model.addObject("clazzList",clazzList );
model.addObject("clazzListJson",JSONArray.fromObject(clazzList));
return model;
}

/**
* 获取学生列表
* @param name
* @param page
* @return
*/
@RequestMapping(value="/get_list",method=RequestMethod.POST)
@ResponseBody
public Map<String, Object> getList(
@RequestParam(value="name",required=false,defaultValue="") String name,
@RequestParam(value="clazzId",required=false) Long clazzId,
HttpServletRequest request,
Page page
){
Map<String, Object> ret = new HashMap<String, Object>();
Map<String, Object> queryMap = new HashMap<String, Object>();
queryMap.put("username", "％"+name+"％");
Object attribute = request.getSession().getAttribute("userType");
if("2".equals(attribute.toString())){
//说明是学生
Student loginedStudent = (Student)request.getSession().getAttribute("user");
queryMap.put("username", "％"+loginedStudent.getUsername()+"％");
}
if(clazzId != null){
queryMap.put("clazzId", clazzId);
}
queryMap.put("offset", page.getOffset());
queryMap.put("pageSize", page.getRows());
ret.put("rows", studentService.findList(queryMap));
ret.put("total", studentService.getTotal(queryMap));
return ret;
}

/**
* 编辑学生信息
* @param clazz
* @return
*/
@RequestMapping(value="/edit",method=RequestMethod.POST)
@ResponseBody
public Map<String, String> edit(Student student){
Map<String, String> ret = new HashMap<String, String>();
if(StringUtils.isEmpty(student.getUsername())){
ret.put("type", "error");
ret.put("msg", "学生姓名不能为空！");
return ret;
}
if(StringUtils.isEmpty(student.getPassword())){
ret.put("type", "error");
ret.put("msg", "学生登录密码不能为空！");
return ret;
}
if(student.getClazzId() == null){
ret.put("type", "error");
ret.put("msg", "请选择所属班级！");
return ret;
}
if(isExist(student.getUsername(), student.getId())){
ret.put("type", "error");
ret.put("msg", "该姓名已存在！");
return ret;
}
student.setSn(StringUtil.generateSn("S", ""));
if(studentService.edit(student) <= 0){
ret.put("type", "error");
ret.put("msg", "学生添加失败！");
return ret;
}
ret.put("type", "success");
ret.put("msg", "学生修改成功！");
return ret;
}

/**
* 添加学生信息
* @param student
* @return
*/
@RequestMapping(value="/add",method=RequestMethod.POST)
@ResponseBody
public Map<String, String> add(Student student){
Map<String, String> ret = new HashMap<String, String>();
if(StringUtils.isEmpty(student.getUsername())){
ret.put("type", "error");
ret.put("msg", "学生姓名不能为空！");
return ret;
}
if(StringUtils.isEmpty(student.getPassword())){
ret.put("type", "error");
ret.put("msg", "学生登录密码不能为空！");
return ret;
}
if(student.getClazzId() == null){
ret.put("type", "error");
ret.put("msg", "请选择所属班级！");
return ret;
}
if(isExist(student.getUsername(), null)){
ret.put("type", "error");
ret.put("msg", "该姓名已存在！");
return ret;
}
student.setSn(StringUtil.generateSn("S", ""));
if(studentService.add(student) <= 0){
ret.put("type", "error");
ret.put("msg", "学生添加失败！");
return ret;
}
ret.put("type", "success");
ret.put("msg", "学生添加成功！");
return ret;
}

/**
* 删除学生信息
* @param ids
* @return
*/
@RequestMapping(value="/delete",method=RequestMethod.POST)
@ResponseBody
public Map<String, String> delete(
@RequestParam(value="ids[]",required=true) Long[] ids
){
Map<String, String> ret = new HashMap<String, String>();
if(ids == null || ids.length == 0){
ret.put("type", "error");
ret.put("msg", "请选择要删除的数据！");
return ret;
}
try {
if(studentService.delete(StringUtil.joinString(Arrays.asList(ids), ",")) <= 0){
ret.put("type", "error");
ret.put("msg", "删除失败！");
return ret;
}
} catch (Exception e) {
// TODO: handle exception
ret.put("type", "error");
ret.put("msg", "该学生下存在其他信息，请勿冲动！");
return ret;
}
ret.put("type", "success");
ret.put("msg", "学生删除成功！");
return ret;
}

/**
* 上传用户头像图片
* @param photo
* @param request
* @param response
* @return
* @throws IOException
*/
@RequestMapping(value="/upload_photo",method=RequestMethod.POST)
@ResponseBody
public Map<String, String> uploadPhoto(MultipartFile photo,
HttpServletRequest request,
HttpServletResponse response
) throws IOException{
Map<String, String> ret = new HashMap<String, String>();
if(photo == null){
//文件没有选择
ret.put("type", "error");
ret.put("msg", "请选择文件！");
return ret;
}
if(photo.getSize() > 10485760){
//文件没有选择
ret.put("type", "error");
ret.put("msg", "文件大小超过10M，请上传小于10M的图片！");
return ret;
}
String suffix = photo.getOriginalFilename().substring(photo.getOriginalFilename().lastIndexOf(".") + 1,photo.getOriginalFilename().length());
if(!"jpg,png,gif,jpeg".contains(suffix.toLowerCase())){
ret.put("type", "error");
ret.put("msg", "文件格式不正确，请上传jpg,png,gif,jpeg格式的图片！");
return ret;
}
String savePath = request.getServletContext().getRealPath("/") + "\\upload\\";
System.out.println(savePath);
File savePathFile = new File(savePath);
if(!savePathFile.exists()){
savePathFile.mkdir();//如果不存在，则创建一个文件夹upload
}
//把文件转存到这个文件夹下
String filename = new Date().getTime() + "." + suffix;
photo.transferTo(new File(savePath + filename ));
ret.put("type", "success");
ret.put("msg", "图片上传成功！");
ret.put("src", request.getServletContext().getContextPath() + "/upload/" + filename);
return ret;
}

private boolean isExist(String username,Long id){
Student student = studentService.findByUserName(username);
if(student != null){
if(id == null){
return true;
}
if(student.getId().longValue() != id.longValue()){
return true;
}
}
return false;
}
}

运行配置

1、首先安装Mysql5.7，设置用户名为root，密码为root，并保证其在运行状态，并执行sql文件导入数据。
2、然后再配置Maven到环境变量中，在源代码目录下运行
3、使用浏览器访问http://localhost:8080即可进入系统。

功能展示

1. 首页登陆

2.2 管理

2.3 管理

2.4 管理

2.5 管理

来源：https://blog.csdn.net/qq_23034755/article/details/111146617