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

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。