JAVA_J2EE大作业-学生信息管理系统.doc

JAVA & J2EE大作业学生信息管理系统/src/beanFind.javapackage bean;import java.io.File;import java.io.IOException;import java.util.Iterator;import javax.servlet.jsp.JspWriter;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.Element;import org.dom4j.io.SAXReader;public class Find public String find(String id,String name,JspWriter out,String studentInfoPath) throws DocumentException, IOExceptionSAXReader saxReader = new SAXReader();Document document = saxReader.read(new File(studentInfoPath);Element root = document.getRootElement();Stringstr=new String7;int j=0;/遍历根结点（students）的所有孩子节点（肯定是student节点）boolean flagid,flagname;for ( Iterator iter = root.elementIterator(); iter.hasNext(); ) out.print();int i=0;Element element = (Element) iter.next();flagid=false;flagname=false;/遍历student结点的所有孩子节点（即id，name，age，gender，email，java），并进行处理Iterator iterInner = element.elementIterator();Element elementInner = (Element) iterInner.next();if(elementInner.getText().equals(id)flagid=true;elementInner = (Element) iterInner.next();if(elementInner.getText().equals(name)flagname=true;if(id!=null&name!=null)if(flagid&flagname)j+;for ( Iterator iterInner1 = element.elementIterator(); iterInner1.hasNext(); ) Element elementInner1 = (Element) iterInner1.next();stri=elementInner1.getText();out.print(+elementInner1.getText()+);i+; break;else if(name!=null&id=null)if(flagname)j+;for ( Iterator iterInner1 = element.elementIterator(); iterInner1.hasNext(); ) Element elementInner1 = (Element) iterInner1.next();stri=elementInner1.getText();out.print(+elementInner1.getText()+);i+;else if(id!=null&name=null)if(flagid)j+;for ( Iterator iterInner1 = element.elementIterator(); iterInner1.hasNext(); ) Element elementInner1 = (Element) iterInner1.next();stri=elementInner1.getText();out.print(+elementInner1.getText()+);i+;break;elsebreak;out.print();str6=j+;return str;ReadUserInfo.javapackage bean;import java.io.IOException;import java.io.BufferedReader;import java.io.File;import java.io.FileReader;import java.util.LinkedList;public class ReadUserInfo /文件中读取出的用户信息LinkedList nameList = new LinkedList();LinkedList passList = new LinkedList();/ StringTokenizer相关变量String temp;String st;/用来保存用户输入信息String username;String password;public String getUsername()return username;public void setUsername(String username)this.username = username;public String getPassword()return password;public void setPassword(String password)this.password = password;public LinkedList getNameList()return nameList;public LinkedList getPassList()return passList;public void read(String path) throws IOExceptionFile file = new File(path);BufferedReader br = new BufferedReader(new FileReader(file);while (temp = br.readLine() != null)st =temp.split(,);nameList.add(st0);passList.add(st1);public boolean checknp(String name,String pass)LinkedList nlist = getNameList();LinkedList plist = getPassList();if(!nlist.contains(name) | !plist.contains(pass)return false;if(nlist.indexOf(name) != plist.indexOf(pass)return false;return true;XmlPage.javapackage bean;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.util.Iterator;import java.util.List;import javax.servlet.jsp.JspWriter;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.SAXReader;import org.dom4j.io.XMLWriter;public class XmlPage public void Edit(String user,String Id,String Name,String Age,String Gender,String Email,String Java,String studentInfoPath) throws DocumentException, IOException SAXReader reader = new SAXReader(); Document document = reader.read(new File(studentInfoPath); Element root = document.getRootElement(); Element element = null ;for ( Iterator iter = root.elementIterator(); iter.hasNext(); ) element = (Element) iter.next();/遍历student结点的所有孩子节点（即id，name，age，gender，email，java），并进行处理Iterator iterInner = element.elementIterator();Element elementInner = (Element) iterInner.next();if(elementInner.getText().equals(user)break;if(!Id.isEmpty()element.element(id).setText(Id);if(!Name.isEmpty()element.element(name).setText(Name);if(!Age.isEmpty()element.element(age).setText(Age);if(!Gender.isEmpty()element.element(gender).setText(Gender);if(!Email.isEmpty() element.element(email).setText(Email);if(!Java.isEmpty()element.element(java).setText(Java); OutputFormat out = new OutputFormat( , true, utf-8); XMLWriter writer = new XMLWriter(new FileOutputStream(studentInfoPath),out); writer.write(document); writer.close(); public boolean check(String id,String studentInfoPath) throws DocumentExceptionSAXReader reader = new SAXReader(); Document document = reader.read(new File(studentInfoPath); Element root = document.getRootElement(); boolean flag=true;for ( Iterator iter = root.elementIterator(); iter.hasNext(); ) Element element = (Element) iter.next();/遍历student结点的所有孩子节点（即id，name，age，gender，email，java），并进行处理Iterator iterInner = element.elementIterator();Element elementInner = (Element) iterInner.next();if(elementInner.getText().equals(id)flag=false;break;return flag;public void add(String Id,String Name,String Age,String Gender,String Email,String Java,String studentInfoPath) throws Exception SAXReader reader = new SAXReader(); Document document = reader.read(new File(studentInfoPath); Element root = document.getRootElement(); Element parent = root.addElement(student); Element id= parent.addElement(id); id.setText(Id); Element name = parent.addElement(name); name.setText(Name); Element age= parent.addElement(age); age.setText(Age); Element gender = parent.addElement(gender); gender.setText(Gender); Element email = parent.addElement(email); email.setText(Email); Element java = parent.addElement(java); java.setText(Java); OutputFormat out = new OutputFormat( , true, utf-8); XMLWriter writer = new XMLWriter(new FileOutputStream(studentInfoPath),out); writer.write(document); writer.close(); public void Del(String id,String studentInfoPath) throws Exception SAXReader reader = new SAXReader(); Document document = reader.read(new File(studentInfoPath); Element root = document.getRootElement(); Element element = null ;for ( Iterator iter = root.elementIterator(); iter.hasNext(); ) element = (Element) iter.next();/遍历student结点的所有孩子节点（即id，name，age，gender，email，java），并进行处理Iterator iterInner = element.elementIterator();Element elementInner = (Element) iterInner.next();if(elementInner.getText().equals(id)break; root.remove(element); OutputFormat out = new OutputFormat( , true, utf-8); XMLWriter writer = new XMLWriter(new FileOutputStream(studentInfoPath), out); writer.write(document); writer.close(); public void Reader(int diPage,int pageFileSize,JspWriter out,String studentInfoPath) throws DocumentException, IOExceptionSAXReader saxReader = new SAXReader();Document document = saxReader.read(new File(studentInfoPath);Element root = document.getRootElement();/ 用于记录学生编号的变量int num=0;/遍历根结点（students）的所有孩子节点（肯定是student节点）for ( Iterator iter = root.elementIterator(); iter.hasNext(); ) out.print();num+;Element element = (Element) iter.next();if(num=(diPage*pageFileSize-(pageFileSize-1)&num=diPage*pageFileSize)/遍历student结点的所有孩子节点（即id，name，age，gender，email，java），并进行处理for ( Iterator iterInner = element.elementIterator(); iterInner.hasNext(); ) Element elementInner = (Element) iterInner.next();out.print(+elementInner.getText()+);out.print(); public int Count(String studentInfoPath) throws DocumentExceptionSAXReader saxReader = new SAXReader();Document document = saxReader.read(new File(studentInfoPath);List list = document.selectNodes(/students/student);int num = list.size();return num; /src/filterAuthorityFilter.javapackage filter;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;public class AuthorityFilter implements Filter /FilterConfig可用于访问Filter的配置信息private FilterConfig config;/实现初始化方法public void init(FilterConfig config)this.config = config; /实现销毁方法public void destroy()this.config = null; /执行过滤的核心方法public void doFilter(ServletRequest request,ServletResponse response, FilterChain chain)throws IOException,ServletException/-下面代码用于对用户请求执行预处理-/获取ServletContext对象，用于记录日志ServletContext context = this.config.getServletContext(); long before = System.currentTimeMillis();System.out.println(开始过滤.);/获取该Filter的配置参数String encoding = config.getInitParameter(encoding);String loginPage = config.getInitParameter(loginPage);String loginServlet = config.getInitParameter(loginServlet);String addsuccess = config.getInitParameter(addsuccess);String changePage = config.getInitParameter(changePage);String changesuccess = config.getInitParameter(changesuccess);String delete = config.getInitParameter(delete);/设置request编码用的字符集request.setCharacterEncoding(encoding);HttpServletRequest requ = (HttpServletRequest)request;HttpSession session = requ.getSession(true);/输出提示信息System.out.println(Filter已经截获到用户的请求的地址： + requ.getServletPath();System.out.println(user： + session.getAttribute(user);/获取客户请求的页面String requestPath = requ.getServletPath();/如果session范围的user为null，即表明没有登录/且用户请求的既不是登录页面，也不是处理登录的页面if( session.getAttribute(user) = null& !requestPath.endsWith(loginPage)& !requestPath.endsWith(loginServlet)request.setAttribute(tip, nologin);request.getRequestDispatcher(/login.jsp).forward(request, response);/*else if(requestPath.endsWith(addsuccess)|requestPath.endsWith(changePage)|requestPath.endsWith(changesuccess)|requestPath.endsWith(delete)request.setAttribute(tip, stop);request.getRequestDispatcher(/studentInfoDisplay.jsp).forward(request, response);*/放行请求else chain.doFilter(request, response);/-下面代码用于对服务器响应执行后处理-long after = System.currentTimeMillis();/输出提示信息System.out.println(过滤结束);/输出提示信息System.out.println(请求被定位到 + (HttpServletRequest) request).getRequestURI() + 所花的时间为: + (after - before); System.out.println(Session.tip： +session.getAttribute(tip);System.out.println(Session.user： +session.getAttribute(user); /src/sevrvletLoginServlet.javapackage sevrvlet;import java.io.IOException;import java.io.PrintWriter;import javax.mail.Session;import javax.servlet.RequestDispatcher;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.jboss.weld.context.SessionContext;import bean.ReadUserInfo;public class LoginServlet extends HttpServlet /* * Constructor of the object. */public LoginServlet() super();/* * Destruction of the servlet. */public void destroy() super.destroy(); / Just puts destroy string in log/ Put your code here/* * The doPost method of the servlet. * * This method is called when a form has its tag value method equals to post. * * param request the request send by the client to the server * param response the response send by the server to the client * throws ServletException if an error occurred * throws IOException if an error occurred */public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException ReadUserInfo r = new ReadUserInfo();r.read(request.getSession().getServletContext().getRealPath()+WEB-INFusers.txt);String username = request.getParameter(username);String password = request.getParameter(password);HttpSession session = request.getSession(true);/RequestDispatcher dis = null;PrintWriter out = response.getWriter();if(!r.checknp(username,password)out.print(alert(Wrong username or password);location.href=./login.jsp;);/dis = request.getRequestDispatcher(./login.jsp); else session.setAttribute(user, username); System.out.println(LoginServlet tip:+session.getAttribute(tip); /out.print(alert(z!);location.href=./index.jsp;); /dis = request.getRequestDispatcher(./studentInfoDisplay.jsp); out.print(location.href=./studentInfoDisplay.jsp;); /dis.forward(request, response);/* * Initialization of the servlet. * * throws ServletException if an error occurs */public void init() throws ServletException / Put your code here/src/tagIteratorTag.javapackage tag;import java.io.IOException;import java.util.Collection;import javax.servlet.jsp.JspException;import javax.servlet.jsp.tagext.SimpleTagSupport;public class IteratorTag extends SimpleTagSupport private String collection;private String item;/collection的setter与getter函数public void setCollection(String conllection)this.collection = conllection;public String getCollection()return this.collection;/item的setter与getter函数public void setItem(String item)this.item = item;public String getItem()return item;Overridepublic void doTag() throws JspException, IOException / TODO Auto-generated method stubCollection itemlist = (Collectio