基于javaweb的JSP+Servlet网上订餐在线点餐管理系统(前台、后台)(java+jsp+servlet+jdbc+mysql+tomcat)

运行环境

Java≥8、MySQL≥5.7、Tomcat≥8

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

1.前台模块：
    （1）食品展示模块
    （2）食品查询模块
    （3）购物车模块
    （4）收银台模块
    （5）用户维护模块
    （6）订单查询模块
    （7）公告模块

2.后台模块：
    （1）食品管理模块
    （2）用户管理模块
    （3）管理员维护模块
    （4）订单管理模块
    （5）公告管理模块
    （6）留言管理模块

eclipse或MyEclipse或idea

普通用户（前台）

管理员（后台）

技术框架

CSS JavaScript JSP Servlet JDBC MySQL

基于javaweb的JSP+Servlet网上订餐在线点餐管理系统(前台、后台)(java+jsp+servlet+jdbc+mysql+tomcat)

if(i == 0)
{
    if(isVirtual(s1))
    {
        s1 = m_application.getRealPath(s1);
        if(s1.endsWith(s3))
        {
            s1 = s1 + s2;
        }
        else
        {
            s1 = s1 + s3 + s2;
        }
        return s1;
    }
    if(flag)
    {
        if(m_denyPhysicalPath)
        {
            throw new IllegalArgumentException("Physical path is denied (1125).");
        }
        else
        {
            return s;
        }
    }
    else
    {
        throw new IllegalArgumentException("This path does not exist (1135).");
    }
}
if(i == 1)
{
    if(isVirtual(s1))
    {
        s1 = m_application.getRealPath(s1);
        if(s1.endsWith(s3))
        {
            s1 = s1 + s2;
        }
        else
        {
            s1 = s1 + s3 + s2;

			request.setAttribute("stocks", al);
		}
		RequestDispatcher rd=request.getRequestDispatcher("/admin/statistic_list.jsp");
        rd.forward(request,response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
package com.demo.servlet.admin;





public class UpdateBookServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public UpdateBookServlet() {
		super();
	}

	/**

        rd.forward(request,response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
package com.demo.servlet.admin;





public class UpdateBookServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public UpdateBookServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	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 {
		Validate vd = new Validate();

ArrayList al2 = ib.select(sql2, args2);
request.setAttribute("books", al2);

String sql3 = "select * from books order by sums1 desc";
String[] args3 = {"id","name","author","publishing","number","price","storage","brief","type","tate","sums","imgpath","price1","sums1"};
ArrayList al3 = ib.select(sql3, args3);
request.setAttribute("xiaosou", al3);

String sql5 = "select * from books where tate=1";
String[] args5 = {"id","name","author","publishing","number","price","storage","brief","type","tate","sums","imgpath","price1","sums1"};
ArrayList al5 = ib.select(sql5, args5);
request.setAttribute("tuibook", al5);

String sql6 = "select * from books where tate=2";
String[] args6 = {"id","name","author","publishing","number","price","storage","brief","type","tate","sums","imgpath","price1","sums1"};
ArrayList al6 = ib.select(sql6, args6);
request.setAttribute("newbook", al6);

String sql7 = "select * from users";
String[] args7 = {"id","name","pwd","realname","sex","age","card","address","phone","email","code"};
ArrayList al7 = ib.select(sql7, args7);
request.setAttribute("users", al7);

String sql10 = "select * from leaveword";
String[] args10 = {"id","users","title","content","times"};
ArrayList al10 = ib.select(sql10, args10);
request.setAttribute("leaveword", al10);

String sql13 = "select * from books order by id desc";
String[] args13 = {"id","name","author","publishing","number","price","storage","brief","type","tate","sums","imgpath","price1","sums1"};
ArrayList al13 = ib.select(sql13, args13);
request.setAttribute("xiaosou1", al13);

String sql14 = "select * from nutrition";
String[] args14 = {"id","name","content"};
ArrayList al14 = ib.select(sql14, args14);
request.setAttribute("nutrition", al14);

String sql15 = "select * from emp";
String[] args15 = {"id","name","sex","birthday","phone","addr","duty","estate"};
ArrayList al15 = ib.select(sql15, args15);
request.setAttribute("emp", al15);

String sql16 = "select * from stock";

}

public void downloadFile(String s,String s1,String s2,int i) throws ServletException,IOException,SmartUploadException
{
    if(s == null)
    {
        throw new IllegalArgumentException("File '" + s + "' not found (1040).");
    }
    if(s.equals(""))
    {
        throw new IllegalArgumentException("File '" + s + "' not found (1040).");
    }
    if(!isVirtual(s) && m_denyPhysicalPath)
    {
        throw new SecurityException("Physical path is denied (1035).");
    }
    if(isVirtual(s))
    {
        s = m_application.getRealPath(s);
    }
    java.io.File file = new java.io.File(s);
    FileInputStream fileinputstream = new FileInputStream(file);
    long l = file.length();
    //boolean flag = false;
    int k = 0;
    byte abyte0[] = new byte[i];
    if(s1 == null)
    {
        m_response.setContentType("application/x-msdownload");
    }
    else
    {
        if(s1.length() == 0)
        {
            m_response.setContentType("application/x-msdownload");
        }
        else
        {
            m_response.setContentType(s1);
        }
    }
    m_response.setContentLength((int)l);
    m_contentDisposition = m_contentDisposition != null ? m_contentDisposition : "attachment;";
    if(s2 == null)
    {
        m_response.setHeader("Content-Disposition",m_contentDisposition + " filename=" + getFileName(s));
    }
    else

    //System.out.println("m_application.getRealPath:::" + s);
    FileNames = new String[m_files.getCount()];
    for(int k = 0;k < m_files.getCount();k++)
    {
        if(!m_files.getFile(k).isMissing())
        {
            //System.out.println("s + m_files.getFile(k).getFileName():" + s + m_files.getFile(k).getFileName());
            m_files.getFile(k).saveAs(s + m_files.getFile(k).getFileName(),i);
            FileNames[j] = s + m_files.getFile(k).getFileName();
            j++;
        }
    }

    return j;
}

//Add
private String[] FileNames;
public String[] getFileNames()
{
    //Method may expose internal representation by returning array
    //Returning an array value stored in one of the object's fields exposes the internal representation of the object.? For classes shared by other untrusted classes, this could potentially be a security issue.? Returning a new copy of the array is better approach in many situations.
    String[] vFileNames = new String[FileNames.length];
    System.arraycopy(FileNames,0,vFileNames,0,FileNames.length);
    return vFileNames;
}

public int getSize()
{
    return m_totalBytes;
}

public byte getBinaryData(int i)
{
    byte byte0;
    try
    {
        byte0 = m_binArray[i];
    }
    catch(Exception exception)
    {
        throw new ArrayIndexOutOfBoundsException("Index out of range (1005).");
    }

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项目链接：
https://javayms.github.io?id=320021241812102ai
https://javayms.pages.dev?id=320021241812102ai