大家好，最近在网上又找到了一个学习项目，在此写一篇博文记录一下，在java项目的专栏中我会持续的更新在网上获取到的java学习项目，这个专栏是我的项目收集专栏吧。在博文中我也会陆续的加入项目的演示视频,读者也可以直接通过视频进行观看项目的功能。

本次项目名:Java高校教材征订系统的设计与实现

本次项目编号：054

一、项目展示图片

二、项目主要代码

package dao;import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import util.Info;public class CommDAO
{public static String dbname = "";public static String dbtype = "";public static Connection conn = null;public CommDAO(){conn = this.getConn();}//给字段做加减法public void jiajian(String tablename,String colname,String id,String num){HashMap map = this.getmap(id, tablename);String value = map.get(colname).toString();if(value.equals(""))value="0";int i = Integer.parseInt(value);int j = Integer.parseInt(num);commOper("update "+tablename+" set "+colname+" = "+(i+j)+" where id="+id);}// 该方法返回一个table 用于流动图片public String DynamicImage(String categoryid,int cut,int width,int height){StringBuffer imgStr = new StringBuffer();StringBuffer thePics1 = new StringBuffer();StringBuffer theLinks1 = new StringBuffer();StringBuffer theTexts1 = new StringBuffer();imgStr.append("<div id=picViwer1  style='background-color: #ffffff' align=center></div><SCRIPT src='js/dynamicImage.js' type=text/javascript></SCRIPT>\n<script language=JavaScript>\n");thePics1.append("var thePics1=\n'");theLinks1.append("var theLinks1='");theTexts1.append("var theTexts1='");List<HashMap> co = this.select("select * from xinwentongzhi where shouyetupian<>'' and shouyetupian<>'null'  and shouyetupian  like '%.jpg' order by id desc",1,6);int i = co.size();int j = 0; for(HashMap b:co){j++; int id = Integer.parseInt(b.get("id").toString()) ;String title = Info.subStr(b.get("biaoti").toString(), 21) ;String url = ""+b.get("shouyetupian");String purl = "gg_detail.jsp?id="+b.get("id");if(j!=i){thePics1.append(url.replaceAll("\n", "")+"|");theLinks1.append(purl+"|");theTexts1.append(title+"|");}if(j==i){thePics1.append(url.replaceAll("\n", ""));theLinks1.append("gg_detail.jsp?id="+b.get("id"));theTexts1.append(title);}}thePics1.append("';");theLinks1.append("';");theTexts1.append("';");imgStr.append(thePics1+"\n");imgStr.append(theLinks1+"\n");imgStr.append(theTexts1+"\n");imgStr.append("\n setPic(thePics1,theLinks1,theTexts1,"+width+","+height+",'picViwer1');</script>");return imgStr.toString();}public HashMap getmap(String id,String table){List<HashMap> list = new ArrayList();try {Statement st = conn.createStatement();//System.out.println("select * from "+table+" where id="+id);ResultSet rs = st.executeQuery("select * from "+table+" where id="+id);ResultSetMetaData rsmd = rs.getMetaData();while(rs.next()){HashMap map = new HashMap();int i = rsmd.getColumnCount();for(int j=1;j<=i;j++){if(!rsmd.getColumnName(j).equals("ID")){String str = rs.getString(j)==null?"": rs.getString(j);if(str.equals("null"))str = "";map.put(rsmd.getColumnName(j), str);}elsemap.put("id", rs.getString(j));}list.add(map);}rs.close();st.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return list.get(0);}public HashMap getmaps(String nzd,String zdz,String table){List<HashMap> list = new ArrayList();try {Statement st = conn.createStatement();//System.out.println("select * from "+table+" where "+nzd+"='"+zdz+"'");ResultSet rs = st.executeQuery("select * from "+table+" where "+nzd+"='"+zdz+"'");ResultSetMetaData rsmd = rs.getMetaData();while(rs.next()){HashMap map = new HashMap();int i = rsmd.getColumnCount();for(int j=1;j<=i;j++){if(!rsmd.getColumnName(j).equals("ID")){String str = rs.getString(j)==null?"": rs.getString(j);if(str.equals("null"))str = "";map.put(rsmd.getColumnName(j), str);}elsemap.put("id", rs.getString(j));}list.add(map);}rs.close();st.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return list.get(0);}public String insert(HttpServletRequest request,HttpServletResponse response, String tablename,HashMap extmap,boolean alert,boolean reflush,String tzurl){extmap.put("addtime", Info.getDateStr());if(request.getParameter("f")!=null){HashMap typemap = new HashMap();ArrayList<String> collist = new ArrayList();String sql = "insert into "+tablename+"(";Connection conn = this.getConn();try {Statement st = conn.createStatement();ResultSet rs = st.executeQuery("select * from "+tablename);ResultSetMetaData rsmd = rs.getMetaData();int i = rsmd.getColumnCount();for(int j=1;j<=i;j++){if(rsmd.getColumnName(j).equals("id"))continue;if(rsmd.getColumnName(j).equals("ID"))continue;if(rsmd.getColumnName(j).equals("iD"))continue;if(rsmd.getColumnName(j).equals("Id"))continue;typemap.put(rsmd.getColumnName(j)+"---", rsmd.getColumnTypeName(j));collist.add(rsmd.getColumnName(j));sql+=rsmd.getColumnName(j)+",";}sql = sql.substring(0,sql.length()-1);sql+=") values(";rs.close();st.close();} catch (SQLException e) {e.printStackTrace();}Enumeration enumeration = request.getParameterNames();String names = ",";while(enumeration.hasMoreElements()){names += enumeration.nextElement().toString()+",";}try {Statement st = conn.createStatement();for(String str:collist){if(names.indexOf(","+str+",")>-1){String[] values = request.getParameterValues(str);String value="";for(String vstr:values){if(vstr==null)vstr="";if(vstr.equals("null"))vstr="";if(vstr.trim().equals(""))continue;if(request.getParameter(vstr)!=null&&!"".equals(request.getParameter(vstr))&&request.getParameter("dk-"+str+"-value")!=null){String dkv = request.getParameter(vstr);String dknamevalue = request.getParameter("dk-"+str+"-value");vstr+=" - "+dknamevalue+":"+dkv;}value+=vstr+" ~ ";}if(value==null)value="";if(value.equals("null"))value="";if(value.length()>0)value=value.substring(0,value.length()-3);if(typemap.get(str+"---").equals("int")){sql+=(value.equals("")?-10:value)+",";}else{sql+="'"+(value.equals("null")?"":value)+"',";}}else{if(typemap.get(str+"---").equals("int")){sql+=(extmap.get(str)==null?"":extmap.get(str))+",";}else{sql+="'"+(extmap.get(str)==null?"":extmap.get(str))+"',";}}}sql=sql.substring(0,sql.length()-1)+")";System.out.println(sql);this.commOper(sql);st.close();} catch (SQLException e) {e.printStackTrace();}String str = "";if(!reflush)str += "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"> \n";str +=  "<script language=javascript>\n";if(alert){str+="alert('操作成功');\n";}if(tzurl.equals("")){if(reflush){str+="parent.location=parent.location;\n";}else{str+="window.location=String(window.location).replace(new RegExp('f=f', 'g'), '');";}}else{str+="location.href='"+tzurl+"';\n";}str+="</script>";PrintWriter wrt = null;try {wrt = response.getWriter();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}wrt.write(str);}return "";}public void delete(HttpServletRequest request,String tablename){int i = 0;try {String did = request.getParameter("did");if(did==null)did = request.getParameter("scid");if(did!=null){if(did.length()>0){Statement st = conn.createStatement();System.out.println("delete from "+tablename+" where id="+did);st.execute("delete from "+tablename+" where id="+did);st.close();}}} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();} }public String getCols(String table){  String str = "";Connection conn = this.getConn();try {Statement st = conn.createStatement();ResultSet rs = st.executeQuery("select * from "+table);ResultSetMetaData rsmd = rs.getMetaData();int i = rsmd.getColumnCount(); for(int j=2;j<=i;j++){str+=rsmd.getColumnName(j)+",";}}catch (Exception e) {e.printStackTrace();}str = str.substring(0,str.length()-1);return str;}public String update(HttpServletRequest request,HttpServletResponse response, String tablename,HashMap extmap,boolean alert,boolean reflush,String tzurl){if(request.getParameter("f")!=null){Enumeration enumeration = request.getParameterNames();String names = ",";while(enumeration.hasMoreElements()){names += enumeration.nextElement().toString()+",";}HashMap typemap = new HashMap();ArrayList<String> collist = new ArrayList();String sql = "update "+tablename+" set ";Connection conn = this.getConn();try {Statement st = conn.createStatement();ResultSet rs = st.executeQuery("select * from "+tablename);ResultSetMetaData rsmd = rs.getMetaData();int i = rsmd.getColumnCount();System.out.println(i);for(int j=1;j<=i;j++){if(rsmd.getColumnName(j).equals("id"))continue;if(rsmd.getColumnName(j).equals("ID"))continue;if(rsmd.getColumnName(j).equals("Id"))continue;if(rsmd.getColumnName(j).equals("iD"))continue;typemap.put(rsmd.getColumnName(j)+"---", rsmd.getColumnTypeName(j));collist.add(rsmd.getColumnName(j));if(names.indexOf(","+rsmd.getColumnName(j)+",")>-1){String[] values = request.getParameterValues(rsmd.getColumnName(j));String value="";for(String vstr:values){if(vstr==null)vstr="";if(vstr.equals("null"))vstr="";if(vstr.trim().equals(""))continue;if(request.getParameter(vstr)!=null&&!"".equals(request.getParameter(vstr))&&request.getParameter("dk-"+rsmd.getColumnName(j)+"-value")!=null){String dkv = request.getParameter(vstr);String dknamevalue = request.getParameter("dk-"+rsmd.getColumnName(j)+"-value");vstr+=" - "+dknamevalue+":"+dkv;System.out.println(vstr);}//if(vstr.length()<)value+=vstr+" ~ ";}if(value==null)value="";if(value.equals("null"))value="";if(value.length()>0)value=value.substring(0,value.length()-3);if(rsmd.getColumnTypeName(j).equals("int")){sql+=rsmd.getColumnName(j)+"="+value+",";}else{sql+=rsmd.getColumnName(j)+"='"+value+"',";}}else{if(extmap.get(rsmd.getColumnName(j))!=null){if(rsmd.getColumnTypeName(j).equals("int")){sql+=rsmd.getColumnName(j)+"="+extmap.get(rsmd.getColumnName(j))+",";}else{sql+=rsmd.getColumnName(j)+"='"+extmap.get(rsmd.getColumnName(j))+"',";}}}}sql = sql.substring(0,sql.length()-1);sql+=" where id="+request.getParameter("id");System.out.println(sql);Statement st1 = conn.createStatement();st1.execute(sql);st1.close();rs.close();st.close(); } catch (SQLException e) {e.printStackTrace();}String str = "";if(!reflush)str += "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n" ;str += "<script language=javascript>\n";if(alert){str+="alert('操作成功');\n";}if(tzurl.equals("")){if(reflush){str+="parent.location=parent.location;\n";}else{str+="window.location=String(window.location).replace(new RegExp('f=f', 'g'), '');";}}else{str+="location.href='"+tzurl+"';\n";}str+="</script>\n";PrintWriter wrt = null;try {//request.getwrt = response.getWriter();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}wrt.write(str);}return "";}public Connection getConn(){try{ if(conn==null||conn.isClosed()){Class.forName("com.mysql.jdbc.Driver");conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/jspmgxjczdxthsg2856CCmysql","root","root");//Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");//conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=jspmgxjczdxthsg2856CC","sa","sa123456");// Class.forName("net.sourceforge.jtds.jdbc.Driver");// conn = DriverManager.getConnection("jdbc:jtds:sqlserver://127.0.0.1:1433;databaseName=jspmgxjczdxthsg2856CC","sa","sa123456");}}catch(Exception e){e.printStackTrace();}return conn;}public int getInt(String sql){int i = 0;try {Statement st = conn.createStatement();ResultSet rs = st.executeQuery(sql);if(rs.next()){i = rs.getInt(1);}st.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return i;}public double getDouble(String sql){double i = 0;try {Statement st = conn.createStatement();ResultSet rs = st.executeQuery(sql);if(rs.next()){i = rs.getDouble(1);}st.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return i;}public void commOper(String sql){System.out.println(sql);try {Statement st = conn.createStatement();st.execute(sql);st.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}}public void commOperSqls(ArrayList<String> sql){try {conn.setAutoCommit(false);for(int i=0;i<sql.size();i++){Statement st = conn.createStatement();System.out.println(sql.get(i));st.execute(sql.get(i));st.close();}conn.commit();} catch (SQLException e) {try {conn.rollback();} catch (SQLException e1) {e1.printStackTrace();}e.printStackTrace();}finally{try {conn.setAutoCommit(true);} catch (SQLException e) {e.printStackTrace();}}}public List<HashMap> select(String sql){ System.out.println(sql);List<HashMap> list = new ArrayList();try {Statement st = conn.createStatement();ResultSet rs = st.executeQuery(sql);ResultSetMetaData rsmd = rs.getMetaData();while(rs.next()){HashMap map = new HashMap();int i = rsmd.getColumnCount();for(int j=1;j<=i;j++){if(!rsmd.getColumnName(j).equals("ID")){String str = rs.getString(j)==null?"": rs.getString(j);if(str.equals("null"))str = "";map.put(rsmd.getColumnName(j), str);}elsemap.put("id", rs.getString(j));}list.add(map);}rs.close();st.close();} catch (SQLException e) {// TODO Auto-generated catch blockif(sql.equals("show tables"))list = select("select table_name from   INFORMATION_SCHEMA.tables");elsee.printStackTrace();}return list;}public List<List> selectforlist(String sql){List<List> list = new ArrayList();try {Statement st = conn.createStatement();ResultSet rs = st.executeQuery(sql);ResultSetMetaData rsmd = rs.getMetaData();while(rs.next()){List<String> list2 = new ArrayList();int i = rsmd.getColumnCount();for(int j=1;j<=i;j++){if(!rsmd.getColumnName(j).equals("ID")){String str = rs.getString(j)==null?"": rs.getString(j);if(str.equals("null"))str = "";list2.add( str);}elselist2.add(rs.getString(j));}list.add(list2);}rs.close();st.close();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return list;}public void close(){}/*** 执行一条查询sql,以 List<hashmap> 的形式返回查询的记录，记录条数，和从第几条开始，由参数决定，主要用于翻页* pageno 页码  rowsize 每页的条数*/public List<HashMap> select(String sql, int pageno, int rowsize) {List<HashMap> list=new ArrayList<HashMap>();List<HashMap> mlist=new ArrayList<HashMap>();try{list=this.select(sql);int min = (pageno-1)*rowsize;int max = pageno*rowsize;for(int i=0;i<list.size();i++){if(!(i<min||i>(max-1))){mlist.add(list.get(i));}}}catch(RuntimeException re){re.printStackTrace();throw re;}return mlist;}public static void main(String[] args) { }
}

package control;import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUpload;
import org.apache.commons.fileupload.RequestContext;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.servlet.ServletRequestContext;import util.Info;import dao.CommDAO;public class MainCtrl extends HttpServlet {public MainCtrl() {super();}public void destroy() {super.destroy(); // Just puts "destroy" string in log// Put your code here}public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doPost(request, response);}public void go(String url,HttpServletRequest request, HttpServletResponse response){try {request.getRequestDispatcher(url).forward(request, response);} catch (ServletException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}public void gor(String url,HttpServletRequest request, HttpServletResponse response){try {response.sendRedirect(url);} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html");PrintWriter out = response.getWriter();String ac = request.getParameter("ac");if(ac==null)ac="";CommDAO dao = new CommDAO();String date = Info.getDateStr();String today = date.substring(0,10);String tomonth = date.substring(0,7);if(ac.equals("login")){String username = request.getParameter("username");String password = request.getParameter("pwd1");String utype = request.getParameter("cx");String pagerandom = request.getParameter("pagerandom")==null?"":request.getParameter("pagerandom");String random = (String)request.getSession().getAttribute("random");if(!pagerandom.equals(random)&&request.getParameter("a")!=null){request.setAttribute("random", "");go("/index.jsp", request, response);}else{String sql1="";if (utype.equals("管理员")){sql1 = "select * from allusers where username='"+username+"' and pwd='"+password+"'"; }if(utype.equals("院系管理员")){sql1 = "select * from yuanxiguanliyuan where gonghao='"+username+"' and mima='"+password+"' ";}List<HashMap> userlist1 = dao.select(sql1);if(userlist1.size()==1){request.getSession(). setAttribute("username", username);  if (utype.equals("管理员")){request.getSession(). setAttribute("cx",  userlist1.get(0).get("cx"));  }else{request.getSession(). setAttribute("cx", utype);     }gor("index.jsp", request, response);}else{request.setAttribute("error", "");go("/index.jsp", request, response);}}}if(ac.equals("adminlogin")){String username = request.getParameter("username");String password = request.getParameter("pwd");String utype = request.getParameter("cx");String pagerandom = request.getParameter("pagerandom")==null?"":request.getParameter("pagerandom");String random = (String)request.getSession().getAttribute("random");if(!pagerandom.equals(random)&&request.getParameter("a")!=null){request.setAttribute("random", "");go("/login.jsp", request, response);}else{String sql1 = "";if (utype.equals("管理员")){sql1 = "select * from allusers where username='"+username+"' and pwd='"+password+"'"; }if(utype.equals("院系管理员")){sql1 = "select * from yuanxiguanliyuan where gonghao='"+username+"' and mima='"+password+"' ";}List<HashMap> userlist1 = dao.select(sql1);if(userlist1.size()==1){request.getSession(). setAttribute("username", username);  if (utype.equals("管理员")){request.getSession(). setAttribute("cx",  userlist1.get(0).get("cx"));  }else{request.getSession(). setAttribute("cx", utype);      }gor("main.jsp", request, response);}else{request.setAttribute("error", "");go("/login.jsp", request, response);}}}//修改密码if(ac.equals("uppass")){String olduserpass = request.getParameter("ymm");String userpass = request.getParameter("xmm1");String copyuserpass = request.getParameter("xmm2");   HashMap m = dao.getmaps("yonghuming",(String)request.getSession().getAttribute("username"), "yonghuzhuce");if(!(((String)m.get("mima")).equals(olduserpass))){request.setAttribute("error", "");go("mod2.jsp", request, response);}else{//String id = (String)user.get("id");String sql = "update yonghuzhuce set mima='"+userpass+"' where yonghuming='"+(String)request.getSession().getAttribute("username")+"'";dao.commOper(sql);request.setAttribute("suc", "");go("mod2.jsp", request, response);}}//修改密码if(ac.equals("adminuppass")){String olduserpass = request.getParameter("ymm");String userpass = request.getParameter("xmm1");String copyuserpass = request.getParameter("xmm2");   //println(Info.getUser(request).get("id").toString());HashMap m = dao.getmaps("username",(String)request.getSession().getAttribute("username"), "allusers");if(!(((String)m.get("pwd")).equals(olduserpass))){request.setAttribute("error", "");go("mod.jsp", request, response);}else{//String id = (String)user.get("id");String sql = "update allusers set pwd='"+userpass+"' where username='"+(String)request.getSession().getAttribute("username")+"'";dao.commOper(sql);request.setAttribute("suc", "");go("mod.jsp", request, response);}}if(ac.equals("uploaddoc")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploaddoc.jsp?docname="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}if(ac.equals("uploaddoc2")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploaddoc2.jsp?docname="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}if(ac.equals("uploaddoc3")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploaddoc3.jsp?docname="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}//导excelif(ac.equals("importexcel")){String page = request.getParameter("page");String whzdstr = request.getParameter("whzdstr");String tablename = request.getParameter("tablename");try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}if(filename.indexOf(".xls")>-1){Workbook workbook;try {workbook = Workbook.getWorkbook(new File(request.getRealPath("/upfile/")+"/"+filename));//通过Workbook的getSheet方法选择第一个工作簿（从0开始）Sheet sheet = workbook.getSheet(0); //通过Sheet方法的getCell方法选择位置为C2的单元格（两个参数都从0开始）//int empty = 0;for(int i=1;i<1000;i++){Cell cell = null;try{String isql = "insert into "+tablename+"(";for(String str:whzdstr.split("-")){ isql+=str+",";}isql = isql.substring(0,isql.length()-1);isql+=")values(";int j=0;int empty = 1;for(String str:whzdstr.split("-")){cell = sheet.getCell(j,i); isql+="'"+cell.getContents()+"',";String content = cell.getContents()==null?"":cell.getContents();if(!"".equals(content.trim())){empty = 0;}j++;}if(empty==1)continue;isql = isql.substring(0,isql.length()-1);isql+=")";dao.commOper(isql);}catch (Exception e) {continue;}} workbook.close(); } catch (Exception e) {e.printStackTrace();} }}go("/admin/"+page+"?docname="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}if(ac.equals("uploadimg")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploadimg.jsp?filename="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}if(ac.equals("uploadimg2")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploadimg2.jsp?filename="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}if(ac.equals("uploadimg3")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploadimg3.jsp?filename="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}if(ac.equals("uploadimg4")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploadimg4.jsp?filename="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}if(ac.equals("uploadimg5")){try {String filename="";request.setCharacterEncoding("gb2312");RequestContext  requestContext = new ServletRequestContext(request);if(FileUpload.isMultipartContent(requestContext)){DiskFileItemFactory factory = new DiskFileItemFactory();factory.setRepository(new File(request.getRealPath("/upfile/")+"/"));ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(100*1024*1024);List items = new ArrayList();items = upload.parseRequest(request);FileItem fileItem = (FileItem) items.get(0);if(fileItem.getName()!=null && fileItem.getSize()!=0){if(fileItem.getName()!=null && fileItem.getSize()!=0){File fullFile = new File(fileItem.getName());filename = Info.generalFileName(fullFile.getName());File newFile = new File(request.getRealPath("/upfile/")+"/" + filename);try {fileItem.write(newFile);} catch (Exception e) {e.printStackTrace();}}else{}}}go("/js/uploadimg5.jsp?filename="+filename, request, response);} catch (Exception e1) {e1.printStackTrace();}}dao.close();out.flush();out.close();}public void init() throws ServletException {// Put your code here}}

三、项目数据库代码

/*
Navicat MySQL Data TransferSource Server         : localhost_3306
Source Server Version : 50160
Source Host           : localhost:3306
Source Database       : jspmgxjczdxthsg2856ccmysqlTarget Server Type    : MYSQL
Target Server Version : 50160
File Encoding         : 65001Date: 2022-03-18 20:51:13
*/SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for `allusers`
-- ----------------------------
DROP TABLE IF EXISTS `allusers`;
CREATE TABLE `allusers` (`ID` int(11) NOT NULL AUTO_INCREMENT,`username` varchar(50) DEFAULT NULL,`pwd` varchar(50) DEFAULT NULL,`cx` varchar(50) DEFAULT NULL,`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;-- ----------------------------
-- Records of allusers
-- ----------------------------
INSERT INTO `allusers` VALUES ('1', 'hsg', 'hsg', '瓒呯骇绠＄悊鍛�', '2022-03-01 01:53:27');-- ----------------------------
-- Table structure for `kucunxinxi`
-- ----------------------------
DROP TABLE IF EXISTS `kucunxinxi`;
CREATE TABLE `kucunxinxi` (`ID` int(11) NOT NULL AUTO_INCREMENT,`shujibianhao` varchar(50) DEFAULT NULL,`shujimingcheng` varchar(50) DEFAULT NULL,`chubanriqi` varchar(50) DEFAULT NULL,`shujijiage` varchar(50) DEFAULT NULL,`shujizuozhe` varchar(50) DEFAULT NULL,`chubanshemingcheng` varchar(50) DEFAULT NULL,`chubanshedizhi` varchar(50) DEFAULT NULL,`shujikucun` varchar(50) DEFAULT NULL,`rukushuliang` varchar(50) DEFAULT NULL,`zongjine` varchar(50) DEFAULT NULL,`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8;-- ----------------------------
-- Records of kucunxinxi
-- ----------------------------
INSERT INTO `kucunxinxi` VALUES ('1', '312895589104', '灏戞湁浜鸿蛋鐨勮矾', '2022-1-31', '69', '绉戞瘮', '娓╁窞鏂板崕鍑虹増绀�', '娉板叴璺�22鍙�', '67', '59', '4071', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('2', '312855599535', '绠�鐖�', '2022-3-8', '69', '鐜嬫煆寮�', '鏃呮父鍑虹増绀�', '閼拰閿﹀洯2鏍�', '67', '82', '5658', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('3', '312806508056', '绠�鐖�', '2022-3-20', '54', '闄堣吹鏌�', '榛庢槑鍑虹増绀�', '寤哄叴璺�138鍙�', '67', '97', '5238', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('4', '312834669782', '瀹夊鍗″垪鐞冲', '2022-1-31', '83', '椹簡鐐�', '鍗椾含鏅开鍑虹増绀�', '榫欑繑璺�11鍙�', '99', '76', '6308', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('5', '312895589104', '灏戞湁浜鸿蛋鐨勮矾', '2022-1-31', '69', '绉戞瘮', '娓╁窞鏂板崕鍑虹増绀�', '娉板叴璺�22鍙�', '67', '97', '6693', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('6', '312843292730', '瀹夊緬鐢熺璇�', '2022-3-2', '56', '閮戜簹鏂�', '鍖椾含鏂拌春鍑虹増绀�', '鏂瑰煄涓藉渾11骞�201瀹�', '60', '59', '3304', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('7', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '娴欐睙娉曟鍑虹増绀�', '涓滃煄璺�99鍙�', '2', '43', '3784', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('8', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '娴欐睙娉曟鍑虹増绀�', '涓滃煄璺�99鍙�', '2', '50', '4400', '2022-03-01 02:11:19');
INSERT INTO `kucunxinxi` VALUES ('9', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '娴欐睙娉曟鍑虹増绀�', '涓滃煄璺�99鍙�', '2', '300', '26400.0', '2022-03-01 02:15:31');
INSERT INTO `kucunxinxi` VALUES ('10', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '娴欐睙娉曟鍑虹増绀�', '涓滃煄璺�99鍙�', '500', '99999999999', '8.800000016384E12', '2022-03-01 02:25:23');
INSERT INTO `kucunxinxi` VALUES ('11', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '娴欐睙娉曟鍑虹増绀�', '涓滃煄璺�99鍙�', '100000000499', '300', '26400.0', '2022-03-01 02:25:32');-- ----------------------------
-- Table structure for `shujidinggou`
-- ----------------------------
DROP TABLE IF EXISTS `shujidinggou`;
CREATE TABLE `shujidinggou` (`ID` int(11) NOT NULL AUTO_INCREMENT,`shujibianhao` varchar(50) DEFAULT NULL,`shujimingcheng` varchar(50) DEFAULT NULL,`chubanriqi` varchar(50) DEFAULT NULL,`shujijiage` varchar(50) DEFAULT NULL,`shujizuozhe` varchar(50) DEFAULT NULL,`chubenshemingcheng` varchar(50) DEFAULT NULL,`shujikucun` varchar(50) DEFAULT NULL,`shenqingshuliang` varchar(50) DEFAULT NULL,`zongjine` varchar(50) DEFAULT NULL,`shenqingren` varchar(50) DEFAULT NULL,`issh` varchar(2) DEFAULT NULL,`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;-- ----------------------------
-- Records of shujidinggou
-- ----------------------------
INSERT INTO `shujidinggou` VALUES ('1', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '', '23', '1', '88.0', '001', '鏄�', '2022-03-01 02:16:51');
INSERT INTO `shujidinggou` VALUES ('2', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '', '22', '10', '880.0', '001', '鏄�', '2022-03-01 02:17:57');
INSERT INTO `shujidinggou` VALUES ('3', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '', '12', '10', '880.0', '001', '鏄�', '2022-03-01 02:24:45');-- ----------------------------
-- Table structure for `shujifafang`
-- ----------------------------
DROP TABLE IF EXISTS `shujifafang`;
CREATE TABLE `shujifafang` (`ID` int(11) NOT NULL AUTO_INCREMENT,`shujibianhao` varchar(50) DEFAULT NULL,`shujimingcheng` varchar(50) DEFAULT NULL,`shujijiage` varchar(50) DEFAULT NULL,`shujizuozhe` varchar(50) DEFAULT NULL,`chubanshemingcheng` varchar(50) DEFAULT NULL,`shujikucun` varchar(50) DEFAULT NULL,`shenqingshuliang` varchar(50) DEFAULT NULL,`zongjine` varchar(50) DEFAULT NULL,`shenqingren` varchar(50) DEFAULT NULL,`fafangshijian` varchar(50) DEFAULT NULL,`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;-- ----------------------------
-- Records of shujifafang
-- ----------------------------
INSERT INTO `shujifafang` VALUES ('1', '312815131913', '涓夊浗婕斾箟', '88', '璧靛Э鍚�', '', '23', '1', '88.0', '001', '2022-03-01', '2022-03-01 02:17:12');
INSERT INTO `shujifafang` VALUES ('2', '312815131913', '涓夊浗婕斾箟', '88', '璧靛Э鍚�', '', '12', '10', '880.0', '001', '2022-03-01', '2022-03-01 02:25:42');-- ----------------------------
-- Table structure for `shujixinxi`
-- ----------------------------
DROP TABLE IF EXISTS `shujixinxi`;
CREATE TABLE `shujixinxi` (`ID` int(11) NOT NULL AUTO_INCREMENT,`shujibianhao` varchar(50) DEFAULT NULL,`shujimingcheng` varchar(50) DEFAULT NULL,`chubanriqi` varchar(50) DEFAULT NULL,`shujijiage` varchar(50) DEFAULT NULL,`shujizuozhe` varchar(50) DEFAULT NULL,`chubanshemingcheng` varchar(50) DEFAULT NULL,`chubanshedizhi` varchar(255) DEFAULT NULL,`shujikucun` varchar(50) DEFAULT NULL,`shujitupian` varchar(50) DEFAULT NULL,`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8;-- ----------------------------
-- Records of shujixinxi
-- ----------------------------
INSERT INTO `shujixinxi` VALUES ('1', '312834669782', '瀹夊鍗″垪鐞冲', '2022-1-31', '83', '椹簡鐐�', '鍗椾含鏅开鍑虹増绀�', '榫欑繑璺�11鍙�', '99', 'upload/nopic6.jpg', '2022-03-01 02:09:37');
INSERT INTO `shujixinxi` VALUES ('2', '312855599535', '绠�鐖�', '2022-3-8', '69', '鐜嬫煆寮�', '鏃呮父鍑虹増绀�', '閼拰閿﹀洯2鏍�', '67', 'upload/nopic2.jpg', '2022-03-01 02:09:37');
INSERT INTO `shujixinxi` VALUES ('3', '312893202161', '閲戠摱姊�', '2022-3-20', '88', '鍐瓙鏉�', '涓浗鏃ユ姤鍑虹増绀�', '涓婃睙灏忓尯2骞�', '67', 'upload/nopic8.jpg', '2022-03-01 02:09:37');
INSERT INTO `shujixinxi` VALUES ('4', '312854222592', '鑺遍鏂囬泦', '2022-1-31', '83', '楣挎櫁', '涓婃捣鏅氭姤鍑虹増绀�', '娌虫花涓滆矾139鍙�', '23', 'upload/nopic1.jpg', '2022-03-01 02:09:37');
INSERT INTO `shujixinxi` VALUES ('5', '312843292730', '瀹夊緬鐢熺璇�', '2022-3-2', '56', '閮戜簹鏂�', '鍖椾含鏂拌春鍑虹増绀�', '鏂瑰煄涓藉渾11骞�201瀹�', '60', 'upload/nopic7.jpg', '2022-03-01 02:09:37');
INSERT INTO `shujixinxi` VALUES ('6', '312806508056', '绠�鐖�', '2022-3-20', '54', '闄堣吹鏌�', '榛庢槑鍑虹増绀�', '寤哄叴璺�138鍙�', '67', 'upload/nopic4.jpg', '2022-03-01 02:09:37');
INSERT INTO `shujixinxi` VALUES ('7', '312895589104', '灏戞湁浜鸿蛋鐨勮矾', '2022-1-31', '69', '绉戞瘮', '娓╁窞鏂板崕鍑虹増绀�', '娉板叴璺�22鍙�', '67', 'upload/nopic3.jpg', '2022-03-01 02:09:37');
INSERT INTO `shujixinxi` VALUES ('8', '312815131913', '涓夊浗婕斾箟', '2022-3-17', '88', '璧靛Э鍚�', '娴欐睙娉曟鍑虹増绀�', '涓滃煄璺�99鍙�', '100000000499', 'upload/nopic5.jpg', '2022-03-01 02:09:37');-- ----------------------------
-- Table structure for `yuanxiguanliyuan`
-- ----------------------------
DROP TABLE IF EXISTS `yuanxiguanliyuan`;
CREATE TABLE `yuanxiguanliyuan` (`ID` int(11) NOT NULL AUTO_INCREMENT,`gonghao` varchar(50) DEFAULT NULL,`mima` varchar(50) DEFAULT NULL,`xingming` varchar(50) DEFAULT NULL,`xingbie` varchar(50) DEFAULT NULL,`shenfenzheng` varchar(50) DEFAULT NULL,`shouji` varchar(50) DEFAULT NULL,`zhaopian` varchar(50) DEFAULT NULL,`addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8;-- ----------------------------
-- Records of yuanxiguanliyuan
-- ----------------------------
INSERT INTO `yuanxiguanliyuan` VALUES ('1', '016', '001', '鐜嬩笌棣�', '鐢�', '330327198811020456', '13025896548', 'upload/yuanxiguanliyuan3.jpg', '2022-03-01 01:56:33');
INSERT INTO `yuanxiguanliyuan` VALUES ('2', '018', '001', '榛勮闃�', '濂�', '330327198708070789', '17505772420', 'upload/yuanxiguanliyuan4.jpg', '2022-03-01 01:56:33');
INSERT INTO `yuanxiguanliyuan` VALUES ('3', '023', '001', '閮椤�', '濂�', '330327199005060003', '13748589658', 'upload/yuanxiguanliyuan1.jpg', '2022-03-01 01:56:33');
INSERT INTO `yuanxiguanliyuan` VALUES ('4', '005', '001', '娓╁畻杈�', '濂�', '330327198805060222', '13623256544', 'upload/yuanxiguanliyuan8.jpg', '2022-03-01 01:56:33');
INSERT INTO `yuanxiguanliyuan` VALUES ('5', '007', '001', '浼嶅厗鏂�', '鐢�', '330327198406150488', '13910215489', 'upload/yuanxiguanliyuan6.jpg', '2022-03-01 01:56:33');
INSERT INTO `yuanxiguanliyuan` VALUES ('6', '012', '001', '鏉ㄩ', '鐢�', '330327198615482633', '13186835580', 'upload/yuanxiguanliyuan2.jpg', '2022-03-01 01:56:33');
INSERT INTO `yuanxiguanliyuan` VALUES ('7', '009', '001', '浣欏皯搴�', '濂�', '33032719900723568X', '13184865998', 'upload/yuanxiguanliyuan5.jpg', '2022-03-01 01:56:33');
INSERT INTO `yuanxiguanliyuan` VALUES ('8', '001', '001', '濮氭槑', '濂�', '330327199010142546', '13769548711', 'upload/yuanxiguanliyuan7.jpg', '2022-03-01 01:56:33');

四、源码下载

054高校教材征订系统的设计与实现-Java文档类资源-CSDN下载

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Java高校教材征订系统的设计与实现【附源码】

一、项目展示图片

二、项目主要代码

三、项目数据库代码

四、源码下载

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