码云地址：SSM整合Oracle实现简单CRUD
1、准备数据库
新建数据表books，相关字段和说明如下
2、新建项目
新建一个maven - web项目，相关依赖如下：
<?xml version="1.0" encoding="UTF-8"?>
<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">
<modelVersion>4.0.0</modelVersion>
<packaging>war</packaging>
<name>ssm-build</name>
<groupId>com.wcong</groupId>
<artifactId>ssm-build</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<spring.version>5.0.2.RELEASE</spring.version>
<log4j.version>1.2.17</log4j.version>
<collection4.version>4.3</collection4.version>
<jstl.version>1.1.2</jstl.version>
<pagehelper.version>5.1.8</pagehelper.version>
</properties>
<dependencies>
<!--Junit-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!--数据库驱动-->
<!--oracle包-->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.4</version>
</dependency>
<!-- 数据库连接池 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!-- web -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- web end -->
<!--Mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.2</version>
</dependency>
<!-- 分页插件 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<!--spring核心包 开始-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<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-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<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核心包 end-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
<!-- log -->
<!-- log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<!-- log end -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>maven-jetty-plugin</artifactId>
<version>6.1.7</version>
<configuration>
<connectors>
<connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
<port>8888</port>
<maxIdleTime>30000</maxIdleTime>
</connector>
</connectors>
<webAppSourceDirectory>${project.build.directory}/${pom.artifactId}-${pom.version}</webAppSourceDirectory>
<contextPath>/</contextPath>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>
注意点： com.oracle.ojdbc6-11.2.0.4.jar这个jar包是不能直接通过maven坐标导入的，需要在maven仓库中手动下载，然后再重新上传到自己的本地仓库中，才可以使用这个jar包，因为Oracle服务是收费的，在自动下载的时候不会进行下载。
下载地址：https://mvnrepository.com/artifact/com.oracle.database.jdbc/ojdbc6/11.2.0.4
配置到本地仓库：
打开cmd，将下载的jar包添加到本地仓库（我下载的jar包放在E:\ChromeDowload目录下）：
mvn install:install-file -Dfile="E:\ChromeDowload\ojdbc6-11.2.0.4.jar" -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=11.2.0.4 -Dpackaging=jar
导入成功后，查看maven中的jar包如下，只要不报错一般就说明导入成功了。
相关配置
完整目录结构如下
db.properties：
# 注意：=前面不能有空格
jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@127.0.0.1:1521:orcl
jdbc.username=scott
jdbc.password=123456
initialSize=5
maxActive=20
minIdle=1
maxIdle=10
filters=stat,wall,log4j
spring-dao.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd">
<!-- ======= 1、数据库相关配置 ========= -->
<!-- 导入db.properties文件 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 2、c3p0连接池配置 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 配置连接池属性 -->
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<!-- c3p0连接池的私有属性 -->
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="10"/>
<!-- 关闭连接后不自动commit -->
<property name="autoCommitOnClose" value="false"/>
<!-- 获取连接超时时间 -->
<property name="checkoutTimeout" value="10000"/>
<!-- 当获取连接失败重试次数 -->
<property name="acquireRetryAttempts" value="2"/>
</bean>
<!-- 3、sqlSessionFactory配置 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 配置MyBatis全局配置文件:mybatis-config.xml -->
<!-- <property name="configLocation" value="classpath:mybatis-config.xml"/>-->
<!-- 配置mapper.xml -->
<property name="mapperLocations">
<array>
<value>com/wcong/dao/*Mapper.xml</value>
</array>
</property>
<!-- 配置分页插件 -->
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor"></bean>
</array>
</property>
</bean>
<!-- 4、配置扫描Dao接口包，动态实现Dao接口注入到spring容器中 -->
<!--解释 ：https://www.cnblogs.com/jpfss/p/7799806.html-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!-- 给出需要扫描Dao接口包 -->
<property name="basePackage" value="com.wcong.dao"/>
</bean>
</beans>
spring-service.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
<!-- 扫描service相关的bean -->
<context:component-scan base-package="com.wcong.service" />
<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource" />
</bean>
</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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 配置SpringMVC -->
<!-- 1.开启SpringMVC注解驱动 -->
<mvc:annotation-driven />
<!-- 2.静态资源默认servlet配置-->
<mvc:default-servlet-handler/>
<!-- 3.配置jsp 显示ViewResolver视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<!-- 4.扫描web相关的bean -->
<context:component-scan base-package="com.wcong.controller" />
<!-- 配置拦截器 -->
<!-- 配置文件上传 -->
</beans>
applicationContext.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<import resource="spring-dao.xml"/>
<import resource="spring-service.xml"/>
<import resource="spring-mvc.xml"/>
</beans>
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<!--DispatcherServlet-->
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!--一定要注意:我们这里加载的是总的配置文件，之前被这里坑了！-->
<param-value>classpath:applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--encodingFilter-->
<filter>
<filter-name>encodingFilter</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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--Session过期时间-->
<session-config>
<session-timeout>15</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>
</web-app>
具体实现代码
Book:
package com.wcong.pojo;
/**
* @author wcong
* @version 1.0
* @date 2020-09-19 15:23
*/
public class Book {
private Integer bookID;
private String bookName;
private Integer bookCount;
private String detail;
// get set toString...
}
BooksMapper：
package com.wcong.dao;
import com.wcong.pojo.Book;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
/**
* @author wcong
* @version 1.0
* @date 2020-09-19 15:07
*/
@Mapper
public interface BooksMapper {
Book getById(Integer id);
List<Book> getByList();
Integer insertBook(Book book);
Integer deleteBookById(Integer id);
Integer updateBook(Book book);
}
BooksMapper.xml:
<?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="com.wcong.dao.BooksMapper">
<resultMap id="bookMap" type="com.wcong.pojo.Book">
<result property="bookID" column="BOOK_ID"></result>
<result property="bookName" column="BOOK_NAME"></result>
<result property="bookCount" column="BOOK_COUNT"></result>
<result property="detail" column="BOOK_DETAIL"></result>
</resultMap>
<sql id="commonSql">
BOOK_ID,BOOK_NAME,BOOK_COUNT,BOOK_DETAIL
</sql>
<!--增加一个Book-->
<insert id="insertBook" parameterType="com.wcong.pojo.Book">
insert into books(book_id,book_name,book_count,book_detail)
values (#{bookID},#{bookName}, #{bookCount}, #{detail})
</insert>
<!--根据id删除一个Book-->
<delete id="deleteBookById" parameterType="int">
delete from books where book_id=#{bookID}
</delete>
<!--更新Book-->
<update id="updateBook" parameterType="com.wcong.pojo.Book">
update books
set book_name = #{bookName},book_count = #{bookCount},book_detail = #{detail}
where book_id = #{bookID}
</update>
<!--根据id查询,返回一个Book-->
<select id="getById" resultMap="bookMap">
SELECT <include refid="commonSql"/> from books
where book_id = #{bookID}
</select>
<!--查询全部Book-->
<select id="getByList" resultMap="bookMap">
SELECT <include refid="commonSql"/> from books
</select>
</mapper>
BookService:
package com.wcong.service;
import com.wcong.pojo.Book;
import java.util.List;
/**
* @author wcong
* @version 1.0
* @date 2020-09-24 12:18
*/
public interface BookService {
Book getById(Integer id);
List<Book> getByList();
Integer insertBook(Book book);
Integer deleteBookById(Integer id);
Integer updateBook(Book book);
}
BookServiceImpl
package com.wcong.service.impl;
import com.wcong.dao.BooksMapper;
import com.wcong.pojo.Book;
import com.wcong.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
* @author wcong
* @version 1.0
* @date 2020-09-19 15:27
*/
@Service
public class BookServiceImpl implements BookService {
@Autowired
private BooksMapper booksMapper;
@Override
public Book getById(Integer id){
return booksMapper.getById(id);
}
@Override
public List<Book> getByList(){
return booksMapper.getByList();
}
@Override
public Integer insertBook(Book book){
return booksMapper.insertBook(book);
}
@Override
public Integer deleteBookById(Integer id){
return booksMapper.deleteBookById(id);
}
@Override
public Integer updateBook(Book book){
return booksMapper.updateBook(book);
}
}
BooksController:
package com.wcong.controller;
import com.wcong.pojo.Book;
import com.wcong.service.impl.BookServiceImpl;
import com.wcong.utils.IdWorker;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import java.util.List;
/**
* @author wcong
* @version 1.0
* @date 2020-09-23 23:39
*/
@Controller
@RequestMapping("/book")
public class BooksController {
@Autowired
private BookServiceImpl bookService;
@GetMapping("/books")
public String bookList(Model model){
List<Book> bookList = bookService.getByList();
model.addAttribute("books",bookList);
return "allBooks";
}
@RequestMapping("/toAddBook")
public String toAddPaper() {
return "addBook";
}
@PostMapping("/addBook")
public String addPaper(Book book) {
book.setBookID((int) new IdWorker().nextId());
System.out.println(book);
bookService.insertBook(book);
return "redirect:/book/books";
}
@RequestMapping("/toUpdateBook")
public String toUpdateBook(Model model, int id) {
Book books = bookService.getById(id);
System.out.println(books);
model.addAttribute("book",books);
return "updateBook";
}
/**
* 更新
* @param book
* @return
*/
@RequestMapping("/updateBook")
public String updateBook(Book book) {
System.out.println("update --> " + book.toString());
bookService.updateBook(book);
/*Book books = bookService.getById(book.getBookID());
model.addAttribute("books", books);*/
return "redirect:/book/books";
}
/**
* 删除
* @param id
* @return
*/
@RequestMapping("/del/{bookId}")
public String deleteBook(@PathVariable("bookId") int id) {
bookService.deleteBookById(id);
return "redirect:/book/books";
}
}
页面
index.jsp：
<%--
Created by IntelliJ IDEA.
User: x
Date: 2020-09-23
Time: 23:39
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>首页</title>
<style type="text/css">
a {
text-decoration: none;
color: black;
font-size: 18px;
}
h3 {
width: 180px;
height: 38px;
margin: 100px auto;
text-align: center;
line-height: 38px;
background: deepskyblue;
border-radius: 4px;
}
</style>
</head>
<body>
<h3><a href="${pageContext.request.contextPath}/book/books">书籍列表</a></h3>
</body>
</html>
allBooks.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>书籍列表</title>
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>书籍列表 —— 所有书籍</small>
</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook">新增</a>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>书籍编号</th>
<th>书籍名字</th>
<th>书籍数量</th>
<th>书籍详情</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<%-- 三种方式均可 --%>
<%-- <c:forEach var="book" items="${requestScope.get('books')}">--%>
<%-- <c:forEach var="book" items="${requestScope.books}">--%>
<c:forEach var="book" items="${books}">
<tr>
<td>${book.bookID}</td>
<td>${book.bookName}</td>
<td>${book.bookCount}</td>
<td>${book.detail}</td>
<td>
<a href="${pageContext.request.contextPath}/book/toUpdateBook?id=${book.bookID}">更改</a> |
<a href="${pageContext.request.contextPath}/book/del/${book.bookID}">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
</body>
</html>
addBook.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>新增书籍</title>
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>新增书籍</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/addBook" method="post">
书籍名称：<input type="text" name="bookName"><br><br><br>
书籍数量：<input type="text" name="bookCount"><br><br><br>
书籍详情：<input type="text" name="detail"><br><br><br>
<input type="submit" value="添加">
</form>
</div>
</body>
</html>
updateBook.jsp
<%--
Created by IntelliJ IDEA.
User: x
Date: 2020-09-24
Time: 14:41
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>修改信息</title>
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>修改信息</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/book/updateBook" method="post">
<input type="hidden" name="bookID" value="${book.bookID}"/>
书籍名称：<input type="text" name="bookName" value="${book.bookName}"/>
书籍数量：<input type="text" name="bookCount" value="${book.bookCount}"/>
书籍详情：<input type="text" name="detail" value="${book.detail }"/>
<input type="submit" value="提交"/>
</form>
</div>
</body>
</html>
完整demo下载地址：
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