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myeclipse+mybatis-generator-gui-

myeclipse+mybatis-generator-gui-

作者: 天谴残魂 | 来源:发表于2017-12-12 16:09 被阅读73次

    前言:在校学的东西做下笔记!想学习的小伙伴们可以找我要下配置文件及所需的jar包和mybatis-generator-gui-0.6.1

    1. 先在myeclipse创建一个Javaweb项目,创建项目时JavaEE Sepcification level处选择JavaEE6.0
    2. 在项目右键选择导入spring的jar包,选择前4个,在JAR Library Installation选第2个点击finish完成

    这里写图片描述
    QQ截图20171211112608.png

    3. 在lib添加mybatis的jar及mysql驱动jar包

    mybatis的jar.png

    4. 添加一些配置文件

    一些配置文件.png

    5. 分层建包(可以按自己的习惯来建)

    这里写图片描述
    6. 修改配置文件
    (1) 修改applicationContext.xml,将下面代码替换applicationContext.xml里原有的代码
    <?xml version="1.0" encoding="UTF-8"?>
    <beans
        xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:p="http://www.springframework.org/schema/p"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:aop="http://www.springframework.org/schema/aop"
        xmlns:tx="http://www.springframework.org/schema/tx"  
        xsi:schemaLocation="
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/aop   
        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/context  
        http://www.springframework.org/schema/context/spring-context-3.1.xsd  
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">
        <!-- 开启注解 -->
        <context:annotation-config />
        <!-- 自动扫描(service)-->
        <context:component-scan base-package="com.gx.service">
            <context:include-filter type="annotation" expression="org.springframework.stereotype.Service" />
            <context:include-filter type="annotation" expression="org.springframework.stereotype.Repository" />
        </context:component-scan>
    </beans>
    

    注意:base-package="com.gx.service"的包名一定要对应你创建的包名否则会报错或导致你查不出数据
    (2) 修改jdbc.properties文件

    修改jdbc.properties文件.png
    (3)修改spring-mvc.xml文件
    这里写图片描述
    (4)修改spring-mybatis.xml文件
    这里写图片描述
    (5)修改web.xml文件,把下面代码替换原来的代码
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.0" 
        xmlns="http://java.sun.com/xml/ns/javaee" 
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
        http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
      <display-name></display-name> 
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml,classpath:spring-mybatis.xml</param-value>
      </context-param>
      <listener>
        <description>spring监听器</description>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
      
      <filter>
            <filter-name>characterEncodingFilter</filter-name>
            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
            <init-param>
                <param-name>encoding</param-name>
                <param-value>UTF-8</param-value>
            </init-param>
            <init-param>
                <param-name>forceEncoding</param-name>
                <param-value>true</param-value>
            </init-param>
      </filter>
        
      <filter-mapping>
            <filter-name>characterEncodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
      </filter-mapping>
      
      <servlet>
        <description>spring mvc servlet</description>
        <servlet-name>springMvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
          <description>spring mvc 配置文件</description>
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <init-param>
                <param-name>activeReverseAjaxEnabled</param-name>
                <param-value>true</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
      </servlet>
      <servlet-mapping>
        <servlet-name>springMvc</servlet-name>
        <url-pattern>*.do</url-pattern>
      </servlet-mapping>
     
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
    </web-app>
    
    

    7.把项目部署到tomcat上运行,如果没报错就说明框架搭建成功,报错的话请仔细检查上面步骤是否有遗漏

    8.打开mybatis-generator-gui-0.6.1创建po、mapper、dao所需文件(我以部门表为例)
    MySQL的部门表:

    这里写图片描述
    这里写图片描述
    这里写图片描述
    9.将生成的文件放到项目对应的包下
    这里写图片描述
    10.在dao层的TbEmpMapper.java添加登录要用到的方法
    这里写图片描述
    11.在mapper层的TbEmpMapper.xml添加上面方法的查询语句,在底部</mapper>
    这里写图片描述
    12.在service层建一个EmpService接口
    这里写图片描述
    13.在service层下再建一个impl包(用来实现EmpService接口),在impl包下创建 EmpServiceImpl类实现接口
    这里写图片描述
    14.在web层(controller层)下创建Login类,实现登录功能
    (按步骤来是不会出现下面报错的!)

    15.在index.jsp写页面代码

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <c:set var="ctx" value="${pageContext.request.contextPath }"></c:set>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>"> 
        <title>My JSP 'index.jsp' starting page</title>
        <meta http-equiv="pragma" content="no-cache">
        <meta http-equiv="cache-control" content="no-cache">
        <meta http-equiv="expires" content="0">    
        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        <meta http-equiv="description" content="This is my page">
        <!--
        <link rel="stylesheet" type="text/css" href="styles.css">
        -->
      </head>
      <body>
        <h2>登录</h2>
       <form action="${ctx}/Login/gologin.do" method="post">
         <label>用户名:</label><input type="text" name="ename">
         <label>密码:</label><input type="text" name="password">
         <input type="submit" value="登录">
       </form>
      </body>
    </html>
    
    

    16.在WebRoot下创建loginsuccess.jsp文件并写好登录后的代码

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        <title>My JSP 'loginsuccess.jsp' starting page</title> 
        <meta http-equiv="pragma" content="no-cache">
        <meta http-equiv="cache-control" content="no-cache">
        <meta http-equiv="expires" content="0">    
        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        <meta http-equiv="description" content="This is my page">
      </head>
    
      <body>
      <div style="text-align: center;width:100%;"><input id="aaa" autofocus="autofocus" onkeydown=" if(event.keyCode == 13) {likeSelect(this.value)};" type="text" placeholder="请输入">
      <table style="text-align: center;">
      <tr style="background: #c37e00;color:white">
      <td width="200" >序号</td>
       <td width="200">姓名</td>
         <td width="200">年龄</td>
        <td width="200">密码</td>
         <td width="200">入职日期</td>
         <td width="200">性别</td>
         <td width="200">部门id</td>
      <td width="200">新增</td>
       <td width="200">修改</td>
        <td width="200">删除</td>
      </tr >
      <c:forEach items="${emplist}" var="emp" varStatus="status">
      <tr  style="background:#d3d7d4">
      <td>${status.index+1}</td>
       <td>${emp.ename}</td>
        <td >${emp.age}</td>
       <td>${emp .password}</td>
       <td>
            <fmt:formatDate value="${emp.workdate }" pattern="yyyy-MM-dd" />
       </td>
       <td>${emp.gender }</td>
       <td>${emp.deptid }</td>
         <td><a href="add.jsp">新增</a></td>
       <td ><a href="Login/goUpdate.do?eid=${emp.eid}">修改</a></td>
        <td><a href="Login/delete.do?eid=${emp.eid}">删除</a></td>
      </tr>
      </c:forEach>
      </table>
      </div>
      </body>
    </html>
    
    

    17.运行后的效果

    这里写图片描述 这里写图片描述

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