SpringMVC SSM整合

本篇主要将mybatis，javaEE web，SpringMVC框架整合，并进行了简单的书籍CRUD示例，仅做参考，后续spring-boot会简化此篇的配置

基础环境

mysql

CREATE DATABASE ssmbuild;
USE ssmbuild;
CREATE TABLE `books`(
`bookID` INT NOT NULL AUTO_INCREMENT COMMENT '书id',
`bookName` VARCHAR(100) NOT NULL COMMENT '书名',
`bookCounts` INT NOT NULL COMMENT '数量',
`detail` VARCHAR(200) NOT NULL COMMENT '描述',
KEY `bookID`(`bookID`)
)ENGINE=INNODB DEFAULT CHARSET=utf;
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');

pom

分为control dao pojo service四层
所用pom依赖包括junit mysql-connector-java c3p0 servlet-api jstl jsp-api mybatis myabtis-spring spring-jdbc lombok 注意：c3p0下载0.9.5以上版本，groupid为com.mchange

处理识别resources的路径

<build>
    <resources>
        <resource>
            <directory>src/main/resource</directory>
            <includes>
                <include>**/*.xml</include>
                <include>**/*.properties</include>
            </includes>
        </resource>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
        </resource>
    </resources>
</build>

配置文件

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-dao.xml"/>
    <import resource="classpath:spring-service.xml"/>
    <import resource="classpath:spring-mvc.xml"/>
</beans>

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>
    <typeAliases>
        <typeAlias type="com.pojo.Books" alias="Books"/>
        <package name="com.pojo"/>
    </typeAliases>
</configuration>

database.properties

jdbc.driver = com.mysql.cj.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/ssmbuild?serverTimezone=UTC&useSSL=false
jdbc.username = root
jdbc.password = 123456

mapper.xml(dao层)

<?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">
<!--命名空间,类似包的概念: namespace:绑定一个对应的Dao/Mapper接口-->
<mapper namespace="com.dao.BookMapper">
    <insert id="addBook" parameterType="Books">
        insert into ssmbuild.books (bookName,bookCounts,detail)
        values (#{bookName},#{bookCounts},#{detail})
    </insert>
    <delete id="deleteBookById" parameterType="int">
        delete from ssmbuild.books where bookID=#{bookId}
    </delete>
    <update id="updateBook" parameterType="Books">
        update ssmbuild.books set bookName=#{bookName},bookCounts=#{bookCounts},detail=#{detail} where bookID=#{bookID};
    </update>
    <select id="queryBookById" resultType="Books">
        select * from ssmbuild.books where bookID = #{bookId}
    </select>
    <select id="queryAllBook" resultType="Books">
        select * from ssmbuild.books
    </select>
</mapper>

spring整合mybatis配置文件

spring-dao.xml 用于配置数据库连接池(之前是直接在mybatis中配置)

<?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">
    <!--关联数据库配置文件 -->
    <context:property-placeholder location="classpath:database.properties" />
    <!--连接池 dbcp:半自动化操作，不能自动连接
    c3p0:自动化操作，自动化加载配置文件，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}"/>
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <property name="autoCommitOnClose" value="false"/>
        <property name="checkoutTimeout" value="10000"/>
        <property name="acquireRetryAttempts" value="2"/>
    </bean>
    <!-- sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>
       <!--配置dao接口扫描，dao接口自动注册 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <property name="basePackage" value="com.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下的包 -->
    <context:component-scan base-package="com.service"/>
    <!--将所有业务类注入到spring -->
    <bean id="BookServiceImpl" class="com.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    </bean>
    <!--声明式事务配置 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
</beans>

web配置(jsp)

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:spring-mvc.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>
    <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(整合jsp与spring)

<?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 https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
    <!--注解驱动 -->
    <mvc:annotation-driven/>
    <!--静态资源过滤 -->
    <mvc:default-servlet-handler/>
    <!--扫描包controller -->
    <context:component-scan base-package="com.controller"/>
    <!--视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

java代码

package com.dao;
import com.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface BookMapper {
    //CRUD
    int addBook(Books books);
    int deleteBookById(@Param("bookId") int id);
    int updateBooks(Books books);
    Books queryBookById(@Param("bookId") int id);
    List<Books> queryAllBook();
}

service层接口此类除@Param注解外完全相同

@Data
@AllArgsConstructor
@Service
public class BookServiceImpl implements BookService {
    @Autowired
    private BookMapper bookMapper;
    public int addBook(Books books) {
        return bookMapper.addBook(books);
    }
    public int deleteBookById(int id) {
        return bookMapper.deleteBookById(id);
    }
    public int updateBooks(Books books) {
        return bookMapper.updateBooks(books);
    }
    public Books queryBookById(int id) {
        return bookMapper.queryBookById(id);
    }
    public List<Books> queryAllBook() {
        return bookMapper.queryAllBook();
    }
}

summary

整体思路为：整合mybatis，spring与mvc；
1. mybatis整合需要mybatis-config.xml，其中包括对pojo的重命名以及所需扫描对应mapper的句柄
2. spring为最大容器，首先需要建立applicationContext.xml利用import导入所有配置文件；然后使用spring-dao.xml进行dao层与mybatis 的sqlSession的相关配置；再次使用spring-service.xml进行扫描包与IOC事务的配置；最后使用spring-mvc.xml进行与mvc的集成配置
3. mvc为web容器，主要集成servlet
mybatis-config.xml：typeAlias声明pojo类，mappers扫描dao层的mapper.xml文件
spring-dao.xml：为mybatis-spring的相关配置文件

bean-dataSource建立数据源（读取database.properties)=>context:property-placeholder location

bean-sqlSessionFactory 并配置sao层接口的扫描（此处的扫描为mybatis扫描）
springt-service.xml：为本身spring IOC容器的配置文件

扫描service的包，注入业务类（扫描包情况下为自动注入，也可手动指定）

声明式事务配置
spring-mvc.xml：为mvc-servlet的相关配置文件

配置mvc注解驱动，静态资源过滤，扫描包（扫描web-controller），视图解析器

前端代码

index

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>首页</title>
    <style>
      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: 5px;
      }
    </style>
  </head>
  <body>
  <h3>
    <a href="${pageContext.request.contextPath}/book/allbook">进入书籍展示页面</a>
  </h3>
  </body>
</html>

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>书籍展示</title>
    <%--    bootstrp美化页面--%>
    <link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<%--<h3 style="text-align: center">书籍展示页面</h3>--%>
<div class="container">
    <div class="row_clearfix">
        <div class="col-md-12 column">
            <div class="page-header">
                <h1 style="text-align: center"><small>书籍列表——显示所有书籍</small></h1>
            </div>
        </div>
        <div class="row">
            <div class="col-md-5 column">
                <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/toAddBook" style="float: left">新增书籍</a>
                <form action="${pageContext.request.contextPath}/book/queryBook" method="post" style="float: right" class="form-inline">
                    <input type="text" name="bookName" class="form-control" placeholder="请输入要查询的名称">
                    <input type="submit" value="查询" class="btn btn-primary">
                    <a class="btn btn-primary" href="${pageContext.request.contextPath}/book/allbook">重置</a>
                </form>

            </div>
        </div>
    </div>
    <div class="row_clearfix">
        <table class="table table-hover table-striped">
            <thead>
            <tr>
                <th>书籍编号</th>
                <th>书籍名称</th>
                <th>书籍数量</th>
                <th>书籍详情</th>
                <th>操作</th>
            </tr>
            </thead>
            <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}/book/toUpdateBook?id=${book.bookId}">修改</a>
                        &nbsp; | &nbsp;
                        <a href="${pageContext.request.contextPath}/book/deleteBook/${book.bookId}">删除</a>
                    </td>
                </tr>
            </c:forEach>
            </tbody>
        </table>
    </div>
</div>
</body>
</html>

posted @ 2021-05-17 22:10 WheelCode 阅读(78) 评论(0) 收藏举报

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WheelCode

SpringMVC SSM整合

SpringMVC SSM整合

基础环境

mysql

pom

配置文件

spring整合mybatis配置文件

web配置(jsp)

java代码

summary

前端代码

index

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