企业工单管理系统--使用mybatis

1，要求

四种框架中的一种来实现企业工单管理系统，Oracle 10g/11g 或 MySQL 5 作为后台数据
库。该系统包括查看所有的项目信息、选择项目后进行工单添加、添加完毕后显示添加后的工单
信息三大功能，具体要求如下：
打开企业工单管理系统首页，下拉框列出所有项目，如图-1 所示。

选择需要添加工单的项目，点击“确定”按钮，进入工单录入界面，级别下拉列表正确显示 1
级，2 级，3 级。如图-2 所示：

添加工单界面，需要输入执行人和任务描述，在点击“提交”时，需要执行非空验证，如果
执行人为空，提示“执行人不能为空！”，如果任务描述为空，则提示“任务描述不能为空！”，
页面效果如图-3 所示。

输入执行人和任务描述后点击“提交”，注意：此工单需要添加到所选择的项目中。请在保
存记录的同时，自动保存记录的生成时间。保存成功或者失败都跳转到工单信息列表，列表
下方显示“保存成功”或“保存失败”提示语句，列表按照工单编号降序排列，级别需要根据数
据库值做对应显示(1-1 级，2-2 级，3-3 级）,创建时间按年-月-日显示，列表采用隔行变色样
式。如图-4 所示。

2，我的数据库

3，使用 idea 工具和 mybatis 框架实现以上功能

（1）我的项目最终形成的样式：

（2）下面详细介绍我的项目

entity实体类

Project

package cn.happy.entity;

public class Project {
    private int id;//工单编号
    private String projectName;//项目名字

    public Project() {
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getProjectName() {
        return projectName;
    }

    public void setProjectName(String projectName) {
        this.projectName = projectName;
    }
}

　　workorder

package cn.happy.entity;

import java.util.Date;

public class Workorder {
    private int id;//工单编号
    private int projectId;//项目编号
    private String executor;//执行人名单
    private String discription;//任务描述
    private int orderLevel;//工单等级
    private Date createDate;//添加时间
    private Project project;

    public Workorder(int id, int projectId, String executor, String discription, int orderLevel, Date createDate, Project project) {
        this.id = id;
        this.projectId = projectId;
        this.executor = executor;
        this.discription = discription;
        this.orderLevel = orderLevel;
        this.createDate = createDate;
        this.project = project;
    }

    public int getProjectId() {
        return projectId;
    }

    public void setProjectId(int projectId) {
        this.projectId = projectId;
    }

    public Workorder() {
    }

    public Project getProject() {
        return project;
    }

    public void setProject(Project project) {
        this.project = project;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }



    public String getExecutor() {
        return executor;
    }

    public void setExecutor(String executor) {
        this.executor = executor;
    }

    public String getDiscription() {
        return discription;
    }

    public void setDiscription(String discription) {
        this.discription = discription;
    }

    public int getOrderLevel() {
        return orderLevel;
    }

    public void setOrderLevel(int orderLevel) {
        this.orderLevel = orderLevel;
    }

    public Date getCreateDate() {
        return createDate;
    }

    public void setCreateDate(Date createDate) {
        this.createDate = createDate;
    }
}

　　我的 util 层

package cn.happy.util;


import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.InputStream;

/**
 * SqlSessionFactory的单列类
 * 工具类的目的就是创建sqlSession对象
 */
public class sessionFactory {
    //01.创建需要单例的对象实例
    private static SqlSessionFactory sessionFactory;
    //02.私有化构造
    public sessionFactory() {
    }
    /**
     * 对外提供访问的接口
     * 001.SqlSession的创建依赖SqlSessionFactory
     *     002.SqlSessionFactory依赖于SqlSessionFactoryBuilder
     *     003.SqlSessionFactoryBuilder依赖于配置文件
     *     004.获取配置文件
     */
    public static synchronized SqlSession getSqlSession(){
        try {
            InputStream stream= Resources.getResourceAsStream("mybatis-config.xml");
            //判断sqlSessionFactory是否为空
            if(sessionFactory==null){
                sessionFactory=new SqlSessionFactoryBuilder().build(stream);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }  /**
         * 之前还需要写一个finally用来关闭流！  现在不需要   为什么不需要??
         * 01.查询源码build(stream)
         * 02.SqlSessionFactoryBuilder类中已经关闭reader.close()
         * 03.所以我们如果关闭流  会报错！
         */

        return sessionFactory.openSession(true);//创建session返回
    }


}

　　我的dao层

IProjectDAO

package cn.happy.dao;

import cn.happy.entity.Project;

import java.util.List;

public interface IProjectDAO {
    //01查询所有项目
    public List<Project> findAll();

}

　IProjectDAO。xml 文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.happy.dao.IProjectDAO">
    <select id="findAll" resultType="project">
        SELECT * from project
    </select>
</mapper>

　　IWorkorderDAO接口

package cn.happy.dao;

import cn.happy.entity.Workorder;

import java.util.List;

public interface IWorkorderDAO {
    //添加工单
    public  int addWork(Workorder work);
    //查询所有工单
    public  List<Workorder> findAllWork();


}

　　IWorkorderDAO.xml 文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.happy.dao.IWorkorderDAO">
    <insert id="addWork" parameterType="Workorder" >
        INSERT into workorder(projectId,executor,discription,orderLevel,createDate) VALUES (#{projectId},#{executor},#{discription},#{orderLevel},#{createDate})
    </insert>
    <select id="findAllWork" resultMap="workMap">
        SELECT id,projectId,executor,discription,orderLevel,createDate from workorder ORDER BY id DESC
    </select>
    <resultMap id="workMap" type="Workorder">
        <id property="id" column="id"/>
        <id property="projectId" column="projectId"/>
        <id property="executor" column="executor"/>
        <id property="discription" column="discription"/>
        <id property="createDate" column="createDate"/>
        <id property="orderLevel" column="orderLevel"/>
        <association property="project" select="selectProject" javaType="Project" column="projectId"/>
    </resultMap>
    <select id="selectProject" resultType="Project">
        select * from project where id=#{projectId}
    </select>
</mapper>

　　我的service层

IProjectService接口

package cn.happy.service;

import cn.happy.entity.Project;

import java.util.List;

public interface IProjectService {
    //01查询所有项目
    public List<Project> findAll();

}

　　ProjectServiceImpl 实现类文件

package cn.happy.service.impl;

import cn.happy.dao.IProjectDAO;
import cn.happy.entity.Project;
import cn.happy.service.IProjectService;
import cn.happy.util.sessionFactory;
import org.apache.ibatis.session.SqlSession;

import java.util.List;

public class ProjectServiceImpl implements IProjectService{
 IProjectDAO dao;
 SqlSession session;
    public ProjectServiceImpl() {
        session= sessionFactory.getSqlSession();
        dao=session.getMapper(IProjectDAO.class);
    }
    public List<Project> findAll() {

        return dao.findAll();
    }
}

　　IWorkorderService接口

package cn.happy.service;

import cn.happy.entity.Workorder;

import java.util.List;

public interface IWorkorderService {
    //添加工单
    public  int addWork(Workorder work);
    //查询所有工单
    public  List<Workorder> findAllWork();


}

　　WorkorderServiceImpl实现类文件

package cn.happy.service.impl;

import cn.happy.dao.IWorkorderDAO;
import cn.happy.entity.Workorder;
import cn.happy.service.IWorkorderService;
import cn.happy.util.sessionFactory;
import org.apache.ibatis.session.SqlSession;

import java.util.List;

public class WorkorderServiceImpl implements IWorkorderService{
 IWorkorderDAO dao;
 SqlSession session;
    public WorkorderServiceImpl() {
        session= sessionFactory.getSqlSession();
        dao=session.getMapper(IWorkorderDAO.class);
    }

    public int addWork(Workorder work) {
        return dao.addWork(work);
    }

    public List<Workorder> findAllWork() {
        return dao.findAllWork();
    }
}

　　我的servilet层

先看看ProjectServlet层

package cn.happy.servlet;

import cn.happy.entity.Project;
import cn.happy.service.IProjectService;
import cn.happy.service.impl.ProjectServiceImpl;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet("/showAll")
public class ProjectServlet extends HttpServlet {
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request,response);
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        IProjectService service=new ProjectServiceImpl();
        List<Project> all= service.findAll();
        request.setAttribute("all",all);
        System.out.println("==============="+all);
        request.getRequestDispatcher("index.jsp").forward(request,response);
    }
}

　　addProjectServlet

package cn.happy.servlet;

import org.apache.log4j.helpers.FileWatchdog;

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

@WebServlet("/addProjectServlet")
public class addProjectServlet extends HttpServlet {
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request,response);
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        String projectId = request.getParameter("projectId");
        request.setAttribute("projectId",projectId);
        request.getRequestDispatcher("add.jsp").forward(request,response);
        System.out.println("=========addproject=========");
    }

}

　　在看看addWorkorderServilet

package cn.happy.servlet;

import cn.happy.entity.Workorder;
import cn.happy.service.IWorkorderService;
import cn.happy.service.impl.WorkorderServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Date;

@WebServlet( "/addWorkorderServlet")
public class addWorkorderServlet extends HttpServlet {
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request,response);
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("========开始添加工单===========");
        request.setCharacterEncoding("utf-8");
        String id = request.getParameter("id");
        String executor = request.getParameter("name");
        String description = request.getParameter("description");
        String orderLevel = request.getParameter("orderLevel");
        System.out.println("========获取添加内容===========");
        Workorder work=new Workorder();
        work.setCreateDate(new Date());//日期
        work.setProjectId(Integer.parseInt(id));
        work.setExecutor(executor);
        work.setDiscription(description);
        work.setOrderLevel(Integer.parseInt(orderLevel));
        IWorkorderService service=new WorkorderServiceImpl();
        System.out.println("========加入方法中===========");
        int num=service.addWork(work);
        System.out.println("----------"+num);
        if (num>0){
            System.out.println("======if>0=======");
            String add="添加成功！";
            request.setAttribute("add",add);
        }else {
            System.out.println("======if<0=======");
            String add="添加失败！";
            request.setAttribute("add",add);
        }
        System.out.println("======结束=======");
         request.getRequestDispatcher("/findWorkorderServlet").forward(request,response);
    }
}

　　最后findWorkorderServlet

package cn.happy.servlet;

import cn.happy.entity.Workorder;
import cn.happy.service.IWorkorderService;
import cn.happy.service.impl.WorkorderServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet("/findWorkorderServlet")
public class findWorkorderServlet extends HttpServlet {
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request,response);
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        IWorkorderService service=new WorkorderServiceImpl();
        List<Workorder> allWork = service.findAllWork();
        request.setAttribute("allWork",allWork);
        request.getRequestDispatcher("show.jsp").forward(request,response);
    }
}

　　jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:///gongdan
jdbc.username=root
jdbc.password=

log4j.properties

### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file mylog.log ###
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=d:\\mylog.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change \'info\' to \'debug\' ###

log4j.logger.cn.happy.dao=debug, stdout,file

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <properties resource="jdbc.properties"></properties>
    <typeAliases>
        <package name="cn.happy.entity"></package>
    </typeAliases>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="${jdbc.driver}"/>
                <property name="url" value="${jdbc.url}"/>
                <property name="username" value="${jdbc.username}"/>
                <property name="password" value="${jdbc.password}"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <package name="cn.happy.dao"></package>
    </mappers>
</configuration>

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page isELIgnored="false"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html>
<base href="<%=basePath%>">
<html>
<body>
<form action="addProjectServlet" method="post">
    <div><h2 >企业工单管理系统</h2></div>
    选择项目<select name="projectId" >
    <c:forEach var="item" items="${all}">
        <option value="${item.id}">${item.projectName}</option>
    </c:forEach>
</select>

    <input type="submit" value="确定">
</form>
</body>
</html>

　　add.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page isELIgnored="false"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript" src="jquery-1.8.3.js"></script>

<script type="text/javascript">
    $(document).ready(function(){
        $("#sub").click(function(){
            var flag=true;
            var $executor=$("#executor");
            var $description=$("#description");
            if($executor.val()==""){
                alert("执行人不能为空");
                return false;
            }
            if($description.val()==""){
                alert("任务描述不能为空");
                return false;
            }
            if(flag){
                $("#myform").submit();
            }
        });
    });

</script>
<div><h2>添加工单</h2></div>
<form action="/addWorkorderServlet" method="post" id="myform" name="myform">
    执行人（*）   <input type="text" id="executor" name="name"><br/>
    <p></p>
    任务描述（*）<textarea name="description" id="description"></textarea><br/>
    <p></p>
    级别（*）       <select name="orderLevel">
    <option value="1">1级</option>
    <option value="2">2级</option>
    <option value="3">3级</option>
</select><br/>
    <input type="hidden" name="id" value="${requestScope.projectId}"/>
    <p></p>
    <input id="sub" type="submit" value="提交"  >
</form>
</body>
</html>

　　show.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ page isELIgnored="false"%>
<!DOCTYPE html>
<html>
<body>
    <div >
        <div >
            <h1>企业工单列表</h1>
        </div>
        <div>
            <table >
                <thead>
                <tr>
                    <th>工单编号</th>
                    <th>醒目名称</th>
                    <th>执行人</th>
                    <th>任务描述</th>
                    <th>级别</th>
                    <th>创建时间</th>
                </tr>
                </thead>
                 <c:forEach items="${allWork}" var="item" varStatus="count">
                    <tr <c:if test="${count.index % 2 ==1 }">style="background-color:gray;"</c:if>>>
                        <td>${item.id }</td>
                        <td>${item.project.projectName }</td>
                        <td>${item.executor}</td>
                        <td >${item.discription }</td>
                        <td >
                            <span >${item.orderLevel}级</span>
                        </td>
                        <td >
                            <fmt:formatDate value="${item.createDate}" pattern="yyyy-MM-dd" />
                        </td>
                    </tr>
                 </c:forEach>
            </table>
            <div></div>
        </div>
    </div><!--/span-->

</body>
</html>

我的pom.xml文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <parent>
        <artifactId>MyBatis01</artifactId>
        <groupId>cn.happy</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>qiye</artifactId>
    <packaging>war</packaging>
    <name>qiye Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
        <!--log4j-->
        <!-- https://mvnrepository.com/artifact/log4j/log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>
        <!--ServletAPI-->
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>6.0</version>
        </dependency>


        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
            <scope>runtime</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.4</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>RELEASE</version>
        </dependency>
    </dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
    </build>
</project>

　　4，项目最终运行结果

如果各位看代码哪里不懂的可以给我留言！！！！！！！！！！！！！！！！！！！！！！！！

我的qq邮箱:905352007@qq.com

本文链接：https://www.cnblogs.com/bb1008/p/7689631.html

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