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  • Java期末考试冲刺总结

    　　经过长达将近三个小时的冲刺，我感觉身心俱疲，但它无法掩盖我敲代码的欲望！

    　　三个小时我只实现了公文流转系统的的部分功能。

    　　我深刻的意识到建民老师说的这套关系之复杂，它真的是太复杂了！！！没有系统的梳理，之前也没有系统地敲过这样一个程序，敲起来感到十分的头大！

    　　期末考试感觉压力很大！

    　　这部分是部门写邮件的代码，这部分我卡的是转码的问题，url传值出现了问题，最新版本的tomcat并不支持其他字符，需要转码

    <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
        #d1{
            text-align: center;
            padding-top: 40px;
            font-family: "微软雅黑";
            font-size: 40px;
            background-color: #DDDDDD;
            height: 100px;
        }
        div ul{
            vertical-align: top;
            list-style-type: none;
            margin: 0px;
            vertical-align: left;
            width: 200px;
            padding: 0px;
            border-top: 20px solid #F8A0E7;
            border-bottom :20px solid #F8A0E7;
        }
        .headd{
            font-family: "微软雅黑";
            lighting-color: red;
            font-size: 20px;
        }
        div li a{
            height: 80px;
            display: block;
            padding: 0px 0px 0px 0em;
            text-decoration: none;
            border-left: 20px solid pink;
        }
        div li a:link,div li a:visited{
            background-color: #F0F0F0;
            color: #461737;
        }
        div li a:hover{
            background-color: green;
            color: gray;
        }
        div li a:active{
            background-color: pink;
        }
        #left{
        float:left;
        }
        #right{
        height:400px;
        width:120px;
        float:left;
        border:1px solid green; 
        }
        #inp{
        float:left;
        height:400px;
        width:1202px;
        }
        .btn{
        float:left;
        }
</style>
<script type="text/javascript">
//function Onload(){
//    var s="<%=request.getParameter("message")%>";
//    if (s !== null || s !== undefined ||s !== '') { 
//        alert(s);
//        } 
//}
function Out(){
    var title=document.getElementById("title").value;
    if(title=="") {
        alert("标题不能为空！！！");
        return false;
    }
    var text=encodeURIComponent(document.getElementById("inp").value);
    var s="SaveAritical?text="+text+"&type=Document&title="+encodeURIComponent(title);
    window.location.href=s;
}
function Save(){
    var title=document.getElementById("title").value;
    if(title=="") {
        alert("标题不能为空！！！");
        return false;
    }
    var text=encodeURIComponent(document.getElementById("inp").value);
    var s="OutAritical?text="+text+"&type=Document&title="+encodeURIComponent(title);
    window.location.href=s;
}


</script>
</head>
<body onload="Onload()">
    <div id="d1">Aritical Of Department</div>
    <div id="left">
<ul>
    <li class="headd"><a href="#" onclick="fresh()">Refresh</a></li>
    <li><a href="Document.jsp">公文拟制</a></li>
    <li><a href="Receive?type=Document">签收公文</a></li>
    <li><a href="DocumentView.jsp">浏览公文</a></li>
</ul>
</div>
<div id="right">
<div><textarea type="text" id="title" placeholder="输入标题">

</textarea></div>
<div ><textarea type="text" id="inp" placeholder="输入内容">

 </textarea></div>
<div><button class="btn" onclick="Save()">保存</button></div>
<div><button class="btn" onclick="Out()">发布</button></div>

</div>
</body>
</html>

    这部分是保存 html：

    <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
        #d1{
            text-align: center;
            padding-top: 40px;
            font-family: "微软雅黑";
            font-size: 40px;
            background-color: #DDDDDD;
            height: 100px;
        }
        div ul{
            vertical-align: top;
            list-style-type: none;
            margin: 0px;
            vertical-align: left;
            width: 200px;
            padding: 0px;
            border-top: 20px solid #F8A0E7;
            border-bottom :20px solid #F8A0E7;
        }
        .headd{
            font-family: "微软雅黑";
            lighting-color: red;
            font-size: 20px;
        }
        div li a{
            height: 80px;
            display: block;
            padding: 0px 0px 0px 0em;
            text-decoration: none;
            border-left: 20px solid pink;
        }
        div li a:link,div li a:visited{
            background-color: #F0F0F0;
            color: #461737;
        }
        div li a:hover{
            background-color: green;
            color: gray;
        }
        div li a:active{
            background-color: pink;
        }
        #left{
        float:left;
        }
        #right{
        height:400px;
        width:120px;
        float:left;
        border:1px solid green; 
        }
        #inp{
        float:left;
        height:400px;
        width:1202px;
        }
        .btn{
        float:left;
        }
</style>
<script type="text/javascript">
function Onload(){
        alert("发布成功！");
}
function Out(){
    var title=document.getElementById("title").value;
    if(title=="") {
        alert("标题不能为空！！！");
        return false;
    }
    var text=encodeURIComponent(document.getElementById("inp").value);
    var s="OutAritical?text="+text+"&type=Document&title="+title;
    window.location.href=s;
}
function Save(){
    var title=document.getElementById("title").value;
    if(title=="") {
        alert("标题不能为空！！！");
        return false;
    }
    var text=encodeURIComponent(document.getElementById("inp").value);
    var s="SaveAritical?text="+text+"&type=Document&title="+title;
    window.location.href=s;
}


</script>
</head>
<body onload="Onload()">
    <div id="d1">Aritical Of Department</div>
    <div id="left">
<ul>
    <li class="headd"><a href="#" onclick="fresh()">Refresh</a></li>
    <li><a href="Produce.jsp">公文拟制</a></li>
    <li><a href="Receive.jsp">签收公文</a></li>
    <li><a href="View.jsp">浏览公文</a></li>
</ul>
</div>
<div id="right">
<div><textarea type="text" id="title" placeholder="输入标题">

</textarea></div>
<div ><textarea type="text" id="inp" placeholder="输入内容">

 </textarea></div>
<div><button class="btn" onclick="Save()">保存</button></div>
<div><button class="btn" onclick="Out()">发布</button></div>

</div>
</body>
</html>

    servlet：

    package com.Aritical.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/SaveAritical")
public class SaveAritical extends HttpServlet {
    private static final long serialVersionUID = 1L;
    public SaveAritical() {
        super();
        // TODO Auto-generated constructor stub
    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String text=request.getParameter("text");
        String type=request.getParameter("type");
        String title=request.getParameter("title");
        Link l=new Link();
        try {
            int id=0;
            Connection con=l.lin("AriticalManager");
            Statement stmt=con.createStatement();
            String queryid="select * from Aritical_"+type;
            ResultSet rsst=stmt.executeQuery(queryid);
            while(rsst.next()) {
                id=Integer.parseInt(rsst.getString("id"));
            }
            rsst.close();
            id++;
            String s="insert into Aritical values("+id+",1,'"+title+"','"+text+"')";
            stmt.executeUpdate(s);
            stmt.close();
            con.close();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String url=type+"Out.jsp";
        request.getRequestDispatcher(url).forward(request, response);
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

     这是servlet：

    package com.Aritical.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/OutAritical")
public class OutAritical extends HttpServlet {
    private static final long serialVersionUID = 1L;
    public OutAritical() {
        super();
    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String text=request.getParameter("text");
        String type=request.getParameter("type");
        String title=request.getParameter("title");
        Link l=new Link();
        try {
            int id=0;
            Connection con=l.lin("AriticalManager");
            Statement stmt=con.createStatement();
            String queryid="select * from Aritical_"+type;
            ResultSet rsst=stmt.executeQuery(queryid);
            while(rsst.next()) {
                id=Integer.parseInt(rsst.getString("id"));
            }
            rsst.close();
            id++;
            String s="insert into Aritical_"+type+" values("+id+",0,'"+title+"','"+text+"')";
            stmt.executeUpdate(s);
            stmt.close();
            con.close();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String url=type+"Save.jsp";
        request.getRequestDispatcher(url).forward(request, response);
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }

}

    这部分是发布的代码

    <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
        #d1{
            text-align: center;
            padding-top: 40px;
            font-family: "微软雅黑";
            font-size: 40px;
            background-color: #DDDDDD;
            height: 100px;
        }
        div ul{
            vertical-align: top;
            list-style-type: none;
            margin: 0px;
            vertical-align: left;
            width: 200px;
            padding: 0px;
            border-top: 20px solid #F8A0E7;
            border-bottom :20px solid #F8A0E7;
        }
        .headd{
            font-family: "微软雅黑";
            lighting-color: red;
            font-size: 20px;
        }
        div li a{
            height: 80px;
            display: block;
            padding: 0px 0px 0px 0em;
            text-decoration: none;
            border-left: 20px solid pink;
        }
        div li a:link,div li a:visited{
            background-color: #F0F0F0;
            color: #461737;
        }
        div li a:hover{
            background-color: green;
            color: gray;
        }
        div li a:active{
            background-color: pink;
        }
        #left{
        float:left;
        }
        #right{
        height:400px;
        width:120px;
        float:left;
        border:1px solid green; 
        }
        #inp{
        float:left;
        height:400px;
        width:1202px;
        }
        .btn{
        float:left;
        }
</style>
<script type="text/javascript">
function Onload(){
        alert("发布成功！");
}
function Out(){
    var title=document.getElementById("title").value;
    if(title=="") {
        alert("标题不能为空！！！");
        return false;
    }
    var text=encodeURIComponent(document.getElementById("inp").value);
    var s="OutAritical?text="+text+"&type=Document&title="+title;
    window.location.href=s;
}
function Save(){
    var title=document.getElementById("title").value;
    if(title=="") {
        alert("标题不能为空！！！");
        return false;
    }
    var text=encodeURIComponent(document.getElementById("inp").value);
    var s="SaveAritical?text="+text+"&type=Document&title="+title;
    window.location.href=s;
}


</script>
</head>
<body onload="Onload()">
    <div id="d1">Aritical Of Department</div>
    <div id="left">
<ul>
    <li class="headd"><a href="#" onclick="fresh()">Refresh</a></li>
    <li><a href="Produce.jsp">公文拟制</a></li>
    <li><a href="Receive.jsp">签收公文</a></li>
    <li><a href="View.jsp">浏览公文</a></li>
</ul>
</div>
<div id="right">
<div><textarea type="text" id="title" placeholder="输入标题">

</textarea></div>
<div ><textarea type="text" id="inp" placeholder="输入内容">

 </textarea></div>
<div><button class="btn" onclick="Save()">保存</button></div>
<div><button class="btn" onclick="Out()">发布</button></div>

</div>
</body>
</html>

     这是发布的servlet：

    package com.Aritical.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/SaveAritical")
public class SaveAritical extends HttpServlet {
    private static final long serialVersionUID = 1L;
    public SaveAritical() {
        super();
        // TODO Auto-generated constructor stub
    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String text=request.getParameter("text");
        String type=request.getParameter("type");
        String title=request.getParameter("title");
        Link l=new Link();
        try {
            int id=0;
            Connection con=l.lin("AriticalManager");
            Statement stmt=con.createStatement();
            String queryid="select * from Aritical_"+type;
            ResultSet rsst=stmt.executeQuery(queryid);
            while(rsst.next()) {
                id=Integer.parseInt(rsst.getString("id"));
            }
            rsst.close();
            id++;
            String s="insert into Aritical values("+id+",1,'"+title+"','"+text+"')";
            stmt.executeUpdate(s);
            stmt.close();
            con.close();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String url=type+"Out.jsp";
        request.getRequestDispatcher(url).forward(request, response);
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

    签收：

    <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>DocumentReceive</title>
<style type="text/css">
        #d1{
            text-align: center;
            padding-top: 40px;
            font-family: "微软雅黑";
            font-size: 40px;
            background-color: #DDDDDD;
            height: 100px;
        }
        div ul{
            vertical-align: top;
            list-style-type: none;
            margin: 0px;
            vertical-align: left;
            width: 200px;
            padding: 0px;
            border-top: 20px solid #F8A0E7;
            border-bottom :20px solid #F8A0E7;
        }
        .headd{
            font-family: "微软雅黑";
            lighting-color: red;
            font-size: 20px;
        }
        div li a{
            height: 80px;
            display: block;
            padding: 0px 0px 0px 0em;
            text-decoration: none;
            border-left: 20px solid pink;
        }
        div li a:link,div li a:visited{
            background-color: #F0F0F0;
            color: #461737;
        }
        div li a:hover{
            background-color: green;
            color: gray;
        }
        div li a:active{
            background-color: pink;
        }
        #left{
        float:left;
        }
        #right{
        height:400px;
        width:120px;
        float:left;
        border:1px solid green; 
        }
        #inp{
        float:left;
        height:400px;
        width:1202px;
        }
        .btn{
        float:left;
        }
</style>
<script type="text/javascript">
function receive(){
    
    }
</script>
</head>
<body>
    <div id="d1">Aritical Of Department</div>
    <div id="left">
<ul>
    <li class="headd"><a href="#" onclick="fresh()">Refresh</a></li>
    <li><a href="Document.jsp">公文拟制</a></li>
    <li><a href="Receive?type=Document">签收公文</a></li>
    <li><a href="DocumentView.jsp">浏览公文</a></li>
</ul>
</div>
<div id="right">
<table>
<c:forEach items="${list}" var="list" >
<tr>
<td onmouseover="this.style.backgroundColor='#FCADEC';"
                        onmouseout="this.style.backgroundColor='#d4e3e5';">${list.id}</td>
<td onmouseover="this.style.backgroundColor='#FCADEC';"
                        onmouseout="this.style.backgroundColor='#d4e3e5';">${list.state}</td>
<td onmouseover="this.style.backgroundColor='#FCADEC';"
                        onmouseout="this.style.backgroundColor='#d4e3e5';">${list.title}</td>
</tr>
<button onclick="receive()">签收</button>
</c:forEach>
</table>
</div>
</body>
</html>

    这部分还没完善servlet：

    package com.Aritical.servlet;

import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class Receive
 */
@WebServlet("/Receive")
public class Receive extends HttpServlet {
    private static final long serialVersionUID = 1L;
    public Receive() {
        super();
    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String type=request.getParameter("type");
        int min=0,max=0;
        ArrayList<AriticalBean> arr=new ArrayList<AriticalBean>();
        switch (type) {
        case "Document":
        {    min=1;
            max=4;
            break;
        }
        default:
            break;
        }
        Link l=new Link();
        try {
            Connection con=l.lin("AriticalManager");
            Statement stmt=con.createStatement();
            String s="select * from Aritical where id between "+min+" and "+max;
            ResultSet rsst=stmt.executeQuery(s);
            while(rsst.next()) {
            AriticalBean ab=new AriticalBean();
            ab.setId(rsst.getInt("id"));
            ab.setState(rsst.getInt("state"));
            ab.setTitle(rsst.getString("title"));
            ab.setText(rsst.getString("text"));
            arr.add(ab);
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        request.setAttribute("list", arr);
        String s=type+"Receive.jsp";
        request.getRequestDispatcher(s).forward(request, response);
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

     目前只写出了这么点，稍后会完善并进行深度总结！
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  • 原文地址：https://www.cnblogs.com/XiaoGao128/p/12012316.html
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