ssm整合笔记
环境：
IDEA
Mysql 8.0
Tomcat 9.0
Maven 3.9
数据库表
CREATE DATABASE `ssmbuild`;
USE `ssmbuild`;
DROP TABLE IF EXISTS `books`;
CREATE TABLE `books` (
`bookID` INT(10) NOT NULL AUTO_INCREMENT COMMENT '书id',
`bookName` VARCHAR(100) NOT NULL COMMENT '书名',
`bookCounts` INT(11) NOT NULL COMMENT '数量',
`detail` VARCHAR(200) NOT NULL COMMENT '描述',
KEY `bookID` (`bookID`)
) ENGINE=INNODB DEFAULT CHARSET=utf8
INSERT INTO `books`(`bookID`,`bookName`,`bookCounts`,`detail`)VALUES
(1,'Java',1,'从入门到放弃'),
(2,'MySQL',10,'从删库到跑路'),
(3,'Linux',5,'从进门到进牢');
相关依赖
<!--依赖：juint,数据库驱动，连接池，servlet，jsp，mybatis-spring，spring-->
<dependencies>
<!--Junit-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!--数据库驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<!-- 数据库连接池 c3p0,dbcp -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!--Servlet - JSP -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--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>
<!--Spring-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.9.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
<scope>provided</scope>
</dependency>
</dependencies>
<!--静态资源导出-->
<build>
<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>
基本框架
com.test.controller
com.test.mapper
com.test.pojo
com.test.service
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>
</configuration>
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">
</beans>
Mybatis层编写
1、数据库配置文件 database.properties
jdbc.driver=com.mysql.jdbc.Driver
# ??????mysql8.0??????????
jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=false&useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456
2、IDEA关联数据库
3、编写Mybatis的核心配置文件
<?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>
<!--配置数据源交给spring做-->
<typeAliases>
<package name="com.test.pojo"/>
</typeAliases>
<mappers>
<mapper class="com.test.mapper.BookMapper"/>
</mappers>
</configuration>
4、编写数据库对应的实体类
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Books {
private int bookID;
private String bookName;
private long bookCounts;
private String detail;
}
5、编写mapper层的mapper接口
public interface BookMapper {
//增加一本书
@Insert("insert into ssmbuild.books(bookName,bookCounts,detail)\n" +
"values (#{bookName},#{bookCounts},#{detail});")
int addBook(Books books);
//删除一本书
@Delete("delete from ssmbuild.books where bookID = #{bookId};")
int deleteBookByID(@Param("bookId") int id);
//更新一本书
@Update("update ssmbuild.books\n" +
"set bookName = #{bookName},bookCounts=#{bookCounts},detail=#{detail}\n" +
"where bookID=${bookID};")
int updateBook(Books books);
//查询一本书
@Select("select * from ssmbuild.books where bookID = #{bookId};")
Books queryBookById(@Param("bookId") int id);
@Select("select * from ssmbuild.books")
//查询全部书
List<Books> queryAllBook();
@Select("select * from ssmbuild.books where bookName=#{bookName}")
List<Books> queryBookByName(@Param("bookName") String bookName);
}
6、如果不使用注解，则配置接口的配置文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.test.mapper.BookMapper">
</mapper>
7、编写Service层的接口和实现类
public interface BookService {
//增加一本书
int addBook(Books books);
//删除一本书
int deleteBookByID(int id);
//更新一本书
int updateBook(Books books);
//查询一本书
Books queryBookById(int id);
//查询全部书
List<Books> queryAllBook();
List<Books> queryBookByName(String bookName);
}
8、实现类
public class BookServiceImpl implements BookService{
//service层调mapper层
private BookMapper bookMapper;
public void setBookMapper(BookMapper bookMapper) {
this.bookMapper = bookMapper;
}
@Override
public int addBook(Books books) {
return bookMapper.addBook(books);
}
@Override
public int deleteBookByID(int id) {
return bookMapper.deleteBookByID(id);
}
@Override
public int updateBook(Books books) {
return bookMapper.updateBook(books);
}
@Override
public Books queryBookById(int id) {
return bookMapper.queryBookById(id);
}
@Override
public List<Books> queryAllBook() {
return bookMapper.queryAllBook();
}
@Override
public List<Books> queryBookByName(String bookName) {
return bookMapper.queryBookByName(bookName);
}
}
到此，底层需求操作编写完毕
Spring层
1、spring整合mybatis，这里数据源使用c3p0连接池
spring-mapper.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">
<!--ioc-->
<!--1、关联数据库文件,通过spring来读取数据库而不是mybatis-->
<context:property-placeholder location="classpath:database.properties"/>
<!--2、连接池
dbcp:半自动操作，不能自动连接
c3p0：自动化操作，（自动化的加载配置文件，并且可以自动设置到对象中）
druid：hikari
-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<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-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!--绑定mybatis的配置文件-->
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!--4、配置mapper接口扫描包，动态的实现了mapper接口可以注入到spring容器中-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--注入sqlSessionFactory-->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!--要扫描的包-->
<property name="basePackage" value="com.test.mapper"/>
</bean>
</beans>
spring整合service层
<?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
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--aop-->
<!--扫描service的包-->
<context:component-scan base-package="com.test.service"/>
<!--2、将我们的所有的业务类，注入到Spring，可以通过配置或注解实现-->
<bean id="BookServiceImpl" class="com.test.service.BookServiceImpl">
<property name="bookMapper" ref="bookMapper"/>
</bean>
<!--3、声明式事务配置-->
<bean id="TransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--注入数据源-->
<property name="dataSource" ref="dataSource"/>
</bean>
<!--4、aop事务支持-->
</beans>
spring层搞定
SpringMVC层
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_4_0.xsd"
version="4.0">
<!--DispatchServlet-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--乱码过滤-->
<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-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>
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.test.controller" />
</beans>
Spring配置整合文件
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="classpath:spring-mapper.xml"/>
<import resource="classpath:spring-service.xml"/>
<import resource="classpath:spring-mvc.xml"/>
</beans>
配置文件，暂时结束
Controller和视图层编写
BookController类编写
package com.test.controller;
import com.test.pojo.Books;
import com.test.service.BookService;
import org.apache.ibatis.session.SqlSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import java.util.ArrayList;
import java.util.List;
@Controller
public class BookController {
//controller 调用 service 层
@Autowired
@Qualifier("BookServiceImpl")
private BookService bookService;
//查询全部的书籍，并且返回到一个书籍展示页面
@RequestMapping("/allBook")
public String list(Model model){
List<Books> list = bookService.queryAllBook();
model.addAttribute("list",list);
return "/allBook";
}
//跳转到新增页面
@RequestMapping("toAddBook")
public String toAddPaper(){
return "addBook";
}
@RequestMapping("/addBook")
public String addPaper(Books books){
System.out.println(books.getBookID());
System.out.println(books);
bookService.addBook(books);
//重定向
return "redirect:/allBook"; //重新定向到我们的@RequestMapping（”/allBook“）请求
}
//跳转到修改页面
@RequestMapping("/toUpdate")
public String toUpdatePaper(int id,Model model){
Books books = bookService.queryBookById(id);
model.addAttribute("book",books);
return "updateBook";
}
//修改书籍
@RequestMapping("updateBook")
public String updateBook(Books books){
System.out.println(books.getBookID());
int i = bookService.updateBook(books);
return "redirect:/allBook";
}
//删除书籍
@RequestMapping("deleteBook")
public String deleteBook(int id){
bookService.deleteBookByID(id);
return "redirect:/allBook";
}
//查询书籍
@RequestMapping("queryBookByName")
public String queryBook(String queryBookName,Model model){
List<Books> list = bookService.queryBookByName(queryBookName);
System.out.println(list);
model.addAttribute("list",list);
return "allBook";
}
}
2、编写首页 index.xml
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE HTML>
<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}/allBook">点击进入列表页</a>
</h3>
</body>
</html>
3、书籍列表页面 allBook.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>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 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 —— 显示所有书籍</small>
</h1>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<a class="btn btn-primary" href="${pageContext.request.contextPath}/toAddBook">新增</a>
<a class="btn btn-primary" href="${pageContext.request.contextPath}/allBook">显示全部书籍</a>
</div>
<div class="col-md-4 column"></div>
<div class="col-md-4 column">
<form class="form-inline" action="${pageContext.request.contextPath}/queryBookByName" method="post" style="float: right">
<input type="text" name="queryBookName" class="form-control" placeholder="请输入要查询的书籍名称" required>
<input type="submit" value="查询" class="btn btn-primary">
</form>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>书籍编号</th>
<th>书籍名字</th>
<th>书籍数量</th>
<th>书籍详情</th>
<th>操作</th>
</tr>
</thead>
<%--书籍从数据库中查询出来，从这个list中遍历出来，foreach book 是值 items是从哪里取值--%>
<tbody>
<c:forEach var="book" items="${list}">
<tr>
<td>${book.bookID}</td>
<td>${book.bookName}</td>
<td>${book.bookCounts}</td>
<td>${book.detail}</td>
<td>
<a href="${pageContext.request.contextPath}/toUpdate?id=${book.bookID}">更改</a>
|
<a href="${pageContext.request.contextPath}/deleteBook?id=${book.bookID}">删除</a>
</td >
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
4、添加书籍页面 addBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>新增书籍</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 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="${pageContext.request.contextPath}/addBook" method="post">
书籍名称：<input type="text" name="bookName" required><br><br><br>
书籍数量：<input type="text" name="bookCounts" required><br><br><br>
书籍详情：<input type="text" name="detail" required><br><br><br>
<input type="submit" value="添加">
</form>
</div>
5、修改书籍 页面 updateBook.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>修改信息</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>修改信息</small>
</h1>
</div>
</div>
</div>
<form action="${pageContext.request.contextPath}/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="bookCounts" value="${book.bookCounts}"/>
书籍详情：<input type="text" name="detail" value="${book.detail}"/>
<input type="submit" value="提交"/>
</form>
</div>
</body>
</html>
配置Tomcat，进行运行！
到目前为止，这个SSM项目整合已经完全的OK了，可以直接运行进行测试！这个练习十分的重要，大家需要保证，不看任何东西，自己也可以完整的实现出来！
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