maven+ssm+oracle实现简单的增删改查

首先看一下项目结构

第一步先导入jar包

pom.xml

   <properties>

            <spring.version>4.3.18.RELEASE</spring.version>

        </properties>

        <dependencies>

            <!--spring的核心的jar包-->

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-core</artifactId>

                <version>${spring.version}</version>

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-beans</artifactId>

                <version>${spring.version}</version>

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-context</artifactId>

                <version>${spring.version}</version>

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-tx</artifactId>

                <version>${spring.version}</version>

            </dependency>

            <!--spring mvc的jar包-->

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-web</artifactId>

                <version>${spring.version}</version>

            </dependency>

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-webmvc</artifactId>

                <version>${spring.version}</version>

            </dependency>

            <!--spring jdbc的jar包-->

            <dependency>

                <groupId>org.springframework</groupId>

                <artifactId>spring-jdbc</artifactId>

                <version>${spring.version}</version>

            </dependency>

            <!--mybatis的jar包-->

            <dependency>

                <groupId>org.mybatis</groupId>

                <artifactId>mybatis</artifactId>

                <version>3.4.6</version>

            </dependency>

            <!--spring 和mybatis整合的中间件jar包-->

            <dependency>

                <groupId>org.mybatis</groupId>

                <artifactId>mybatis-spring</artifactId>

                <version>1.3.2</version>

            </dependency>

            <!--orace的驱动包-->

            <dependency>

                <groupId>com.oracle</groupId>

                <artifactId>oracle6</artifactId>

                <version>6</version>

            </dependency>

            <!--spring 实现文件上传的jar包-->

            <dependency>

                <groupId>commons-io</groupId>

                <artifactId>commons-io</artifactId>

                <version>1.3.2</version>

            </dependency>

            <dependency>

                <groupId>commons-fileupload</groupId>

                <artifactId>commons-fileupload</artifactId>

                <version>1.2.1</version>

            </dependency>

            <!--解析json数据的jar包-->

            <dependency>

                <groupId>com.fasterxml.jackson.core</groupId>

                <artifactId>jackson-core</artifactId>

                <version>2.9.8</version>

            </dependency>

            <dependency>

                <groupId>com.fasterxml.jackson.core</groupId>

                <artifactId>jackson-annotations</artifactId>

                <version>2.9.8</version>

            </dependency>

            <dependency>

                <groupId>com.fasterxml.jackson.core</groupId>

                <artifactId>jackson-databind</artifactId>

                <version>2.9.8</version>

            </dependency>

            <!--数据库连接池的jar包-->

            <dependency>

                <groupId>commons-dbcp</groupId>

                <artifactId>commons-dbcp</artifactId>

                <version>1.4</version>

            </dependency>

            <!--jstl的jar包-->

            <dependency>

                <groupId>jstl</groupId>

                <artifactId>jstl</artifactId>

                <version>1.2</version>

            </dependency>

            <!--j2ee的jar包-->

            <dependency>

                <groupId>javax.servlet</groupId>

                <artifactId>servlet-api</artifactId>

                <version>2.5</version>

                <scope>provided</scope>

            </dependency>

        </dependencies>

        <build>

            <resources>

                <!--指定src main java下所有的目录下的xml文件都编译-->

                <resource>

                    <directory>src/main/java</directory>

                    <includes>

                        <include>**/*.xml</include>

                    </includes>

                </resource>

            </resources>

        </build>

导入jar包之后下载到本地仓库，这里Oracle的jar包是下载不了的，需要自己下载引入到本地仓库才可以使用

直接window+r回车输入mvn install:install-file -Dfile=jar包的位置+jar包名 -DgroupId=上面的groupId（自定义） -DartifactId=上面的artifactId（自定义） -Dversion=版本号 -Dpackaging=jar

例mvn install:install-file -Dfile=D:\jar包\ojdbc6\ojdbc6.jar -DgroupId=com.oracle -DartifactId=oracle6 -Dversion=6 -Dpackaging=jar

第二步：创建dao层

EmpDao.java

package com.aaa.ssm.dao;

import com.aaa.ssm.entity.Emp;

import java.util.*;

public interface EmpDao {

    /**

     * 查询所有员工信息

     * @return

     */

    public List<Emp> findAllEmp();

    /**

     * 根据ID删除员工信息

     * @param empno

     * @return

     */

    public int deleteEmp(int empno);

    /**

     * 根据ID查询要修改的员工信息

     * @param empno

     * @return

     */

    public List<Emp> toUpdate(int empno);

    /**

     * 添加员工信息

     * @param emp

     * @return

     */

    public int insertEmp(Emp emp);

    /**

     * 修改员工信息

     * @param emp

     * @return

     */

    public int updateEmp(Emp emp);

}

EmpDaoMapper.xml

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"

        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.aaa.ssm.dao.EmpDao">

    <select id="findAllEmp" resultType="com.aaa.ssm.entity.Emp">

        select * from emp

    </select>

    <delete id="deleteEmp" parameterType="int">

        delete from emp where empno=#{empno}

    </delete>

    <select id="toUpdate" resultType="com.aaa.ssm.entity.Emp">

        select * from emp where empno=#{empno}

    </select>

    <insert id="insertEmp">

        <selectKey resultType="int" keyProperty="empno" order="BEFORE">

            select seq_emp.nextval from dual

        </selectKey>

        insert into emp(empno,ename,job,mgr,sal,comm,deptno) VALUES(#{empno},#{ename},#{job},#{mgr},#{sal},#{comm},#{deptno})

    </insert>

    <update id="updateEmp">

        update emp set ename=#{ename},job=#{job},mgr=#{mgr},sal=#{sal},comm=#{comm},deptno=#{deptno} where empno=#{empno}

    </update>

</mapper>

第三步：创建service层

EmpService.java接口

package com.aaa.ssm.service;

import com.aaa.ssm.entity.Emp;

import java.util.*;

public interface EmpService {

    /**

     * 查询所有员工信息

     * @return

     */

    public List<Emp> findAllEmp();

    /**

     * 根据ID删除员工信息

     * @param empno

     * @return

     */

    public int deleteEmp(int empno);

    /**

     * 根据ID查询要修改的员工信息

     * @param empno

     * @return

     */

    public List<Emp> toUpdate(int empno);

    /**

     * 添加员工信息

     * @param emp

     * @return

     */

    public int insertEmp(Emp emp);

    /**

     * 修改员工信息

     * @param emp

     * @return

     */

    public int updateEmp(Emp emp);

}

EmpServiceImpl.java实现类

package com.aaa.ssm.service.impl;

import com.aaa.ssm.dao.EmpDao;

import com.aaa.ssm.entity.Emp;

import com.aaa.ssm.service.EmpService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service

@Transactional

public class EmpDaoImpl implements EmpService {

    @Autowired

    private EmpDao dao;

    public List<Emp> findAllEmp() {

        return  dao.findAllEmp();

    }

    public int deleteEmp(int empno) {

        return dao.deleteEmp(empno);

    }

    public List<Emp> toUpdate(int empno) {

        return  dao.toUpdate(empno);

    }

    public int insertEmp(Emp emp) {

        return dao.insertEmp(emp);

    }

    public int updateEmp(Emp emp) {

        return dao.updateEmp(emp);

    }

}

第四步：创建实体

Emp.java

package com.aaa.ssm.entity;

public class Emp {

    private Integer empno;

    private String ename;

    private String job;

    private Integer mgr;

    private String hiredate;

    private Double sal;

    private Integer comm;

    private Integer deptno;

    public Integer getEmpno() {

        return empno;

    }

    public void setEmpno(Integer empno) {

        this.empno = empno;

    }

    public String getEname() {

        return ename;

    }

    public void setEname(String ename) {

        this.ename = ename;

    }

    public String getJob() {

        return job;

    }

    public void setJob(String job) {

        this.job = job;

    }

    public Integer getMgr() {

        return mgr;

    }

    public void setMgr(Integer mgr) {

        this.mgr = mgr;

    }

    public String getHiredate() {

        return hiredate;

    }

    public void setHiredate(String hiredate) {

        this.hiredate = hiredate;

    }

    public Double getSal() {

        return sal;

    }

    public void setSal(Double sal) {

        this.sal = sal;

    }

    public Integer getComm() {

        return comm;

    }

    public void setComm(Integer comm) {

        this.comm = comm;

    }

    public Integer getDeptno() {

        return deptno;

    }

    public void setDeptno(Integer deptno) {

        this.deptno = deptno;

    }

}

第五步：创建controller层

EmpController.java

package com.aaa.ssm.controller;

import com.aaa.ssm.entity.Emp;

import com.aaa.ssm.service.EmpService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;

@Controller

@RequestMapping("/emp")

public class EmpController {

    @Autowired

    private EmpService ser;

    @RequestMapping("/findallemp")

    public String findAllEmp(Model model){

        List<Emp> list = ser.findAllEmp();

        model.addAttribute("list",list);

        return "allemp";

    }

    @RequestMapping("/deleteemp")

    public String deleteEmp(int empno){

        ser.deleteEmp(empno);

        return "redirect:/emp/findallemp.do";

    }

    @RequestMapping("/toupdate")

    public String toUpdate(Integer empno,Model model){

        if(empno!=null){

            List<Emp> list = ser.toUpdate(empno);

            model.addAttribute("emp",list.get(0));

        }

        return "ioru";

    }

    @RequestMapping("/insertorupdateemp")

    public String InsertOrUpdateEmp(Emp emp){

        if (emp.getEmpno()!=null){

            ser.updateEmp(emp);

        }else{

            ser.insertEmp(emp);

        }

        return "redirect:/emp/findallemp.do";

    }

}

第六步：创建配置文件

spring.xml

<?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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--第一步，扫描service -->

        <context:component-scan base-package="com.aaa.ssm.service.impl"></context:component-scan>

        <!--第二步，加载jdbc.properties-->

        <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>

        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

            <property name="driverClassName" value="${driver}"></property>

            <property name="url" value="${url}"></property>

            <property name="username" value="${user}"></property>

            <property name="password" value="${password}"></property>

        </bean>

        <!--第四步，创建mybatis的工厂类对象-->

        <bean class="org.mybatis.spring.SqlSessionFactoryBean">

            <!--指定数据源-->

            <property name="dataSource" ref="dataSource"></property>

            <!--加载mybatis的映射文件 在value中可以使用*号通配符-->

            <property name="mapperLocations" value="classpath:com/aaa/ssm/dao/*.xml"></property>

            <!--加载mybatis中的配置文件-->

            <property name="configLocation" value="classpath:mybatis.xml"></property>

        </bean>

        <!--第五步，在spring 的工厂中生成dao接口的实现类对象 -->

        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

            <!--指定要扫描哪个包下面所有的dao接口-->

            <property name="basePackage" value="com.aaa.ssm.dao"></property>

        </bean>

        <!--第六步，创建spring的事物管理器-->

        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

            <property name="dataSource" ref="dataSource"></property>

        </bean>

        <!--第七步，声明以注解的方式配置声明式事物-->

        <tx:annotation-driven transaction-manager="transactionManager" ></tx:annotation-driven>

</beans>

spring-mvc.xml

<?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:mvc="http://www.springframework.org/schema/mvc"

       xmlns:context="http://www.springframework.org/schema/context"

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

     <!--第一步，扫描控制器包-->

         <context:component-scan base-package="com.aaa.ssm.controller"></context:component-scan>

         <!--第二步，声明以注解的方式使用spring mvc-->

         <mvc:annotation-driven></mvc:annotation-driven>

         <!--第三步，配置spring mvc 内置的视图解析器-->

         <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

             <property name="prefix" value="/WEB-INF/jsp/"></property>

             <property name="suffix" value=".jsp"></property>

         </bean>

</beans>

mybatis.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>

    <settings>

        <!--打印日志可以看执行的sql语句-->

        <setting name="logImpl" value="STDOUT_LOGGING"/>

    </settings>

</configuration>

jdbc.properties

driver=oracle.jdbc.driver.OracleDriver

url=jdbc:oracle:thin:@localhost:1521:orcl

user=scott

password=tiger

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"

         version="3.1">

     <listener>

             <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

         </listener>

         <context-param>

             <param-name>contextConfigLocation</param-name>

             <param-value>classpath:spring.xml</param-value>

         </context-param>

         <servlet>

             <servlet-name>spring-mvc</servlet-name>

             <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

             <init-param>

                 <param-name>contextConfigLocation</param-name>

                 <param-value>classpath:spring-mvc.xml</param-value>

             </init-param>

         </servlet>

         <servlet-mapping>

             <servlet-name>spring-mvc</servlet-name>

             <url-pattern>*.do</url-pattern>

         </servlet-mapping>

          <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>forceResponseEncoding</param-name>

                     <param-value>true</param-value>

                 </init-param>

             </filter>

         <filter-mapping>

             <filter-name>characterEncodingFilter</filter-name>

             <url-pattern>/*</url-pattern>

         </filter-mapping>

</web-app>

到这里后台代码就写完了，接下来是前台的界面

WEB-INF目录下新建一个jsp文件夹

这里如果新建的maven项目没有web目录那么这样添加

然后在jsp文件夹下创建jsp文件

allemp.jsp

<%--

  Created by IntelliJ IDEA.

  User: ASUS

  Date: 2019/6/3

  Time: 16:02

  To change this template use File | Settings | File Templates.

--%>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%

    String path = request.getContextPath();

    String basePath = request.getScheme() + "://"

            + request.getServerName() + ":" + request.getServerPort()

            + path + "/";

%>

<html>

<head>

    <title>员工信息</title>

</head>

<body>

<table border="1">

    <tr>

        <th>员工编号</th>

        <th>员工姓名</th>

        <th>职位</th>

        <th>上级领导编号</th>

        <th>入职时间</th>

        <th>基本工资</th>

        <th>奖金</th>

        <th>部门编号</th>

        <th>操作</th>

    </tr>

    <c:forEach items="${list}" var="m">

    <tr>

        <td>${m.empno}</td>

        <td>${m.ename}</td>

        <td>${m.job}</td>

        <td>${m.mgr}</td>

        <td>${m.hiredate}</td>

        <td>${m.sal}</td>

        <td>${m.comm}</td>

        <td>${m.deptno}</td>

        <td>

            <a href="<%=path%>/emp/deleteemp.do?empno=${m.empno}">删除</a>

            <a href="<%=path%>/emp/toupdate.do?empno=${m.empno}">修改</a>

        </td>

    </tr>

    </c:forEach>

    <a href="<%=path%>/emp/toupdate.do">添加</a>

</body>

</html>

ioru.xml

<%--

  Created by IntelliJ IDEA.

  User: ASUS

  Date: 2019/6/3

  Time: 16:57

  To change this template use File | Settings | File Templates.

--%>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>Title</title>

</head>

<body>

<form method="post" action="/emp/insertorupdateemp.do">

    <input type="hidden" value="${emp.empno}" name="empno" >

    员工姓名：<input type="text" name="ename" value="${emp.ename}" ><br/>

    员工职位：<input type="text" name="job" value="${emp.job}" ><br/>

    员工上级领导：<input type="text" name="mgr" value="${emp.mgr}" ><br/>

    员工基本工资：<input type="text" name="sal" value="${emp.sal}" ><br/>

    员工奖金：<input type="text" name="comm" value="${emp.comm}" ><br/>

    部门编号：<input type="text" name="deptno" value="${emp.deptno}" ><br/>

    <input type="submit" value="保存">

</form>

</body>

</html>

到这来就结束了。测试一下查询

巴特西

maven+ssm+oracle实现简单的增删改查

最新文章

热门文章