ssm超简单整合

SSM整合

1. 新建数据库

create database ssmbuild character set utf8;

create table books (
  bookId int(10) not null auto_increment primary key comment '书id',
  bookName varchar(100) not null comment '书名',
  bookCount int(11) not null comment '数量',
  detail varchar(200) not null comment '描述'
)default charset=utf8;

insert into books(bookId,bookName,bookCount,detail) values
  (1,'Java',1,'从入门到放弃'),
  (2,'MySQL',10,'从删库到跑路'),
  (3,'Linux',5,'从进门到坐牢')

2.添加maven依赖

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0modelVersion>

    <groupId>com.qilingroupId>
    <artifactId>ssmbuildartifactId>
    <version>1.0-SNAPSHOTversion>

    
    <dependencies>
        
        <dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <version>4.12version>
        dependency>
        
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>8.0.20version>
        dependency>
        
        <dependency>
            <groupId>com.mchangegroupId>
            <artifactId>c3p0artifactId>
            <version>0.9.5.4version>
        dependency>
        
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>servlet-apiartifactId>
            <version>2.5version>
        dependency>
        <dependency>
            <groupId>javax.servlet.jspgroupId>
            <artifactId>jsp-apiartifactId>
            <version>2.2version>
        dependency>
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>jstlartifactId>
            <version>1.2version>
        dependency>
        
        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatisartifactId>
            <version>3.4.6version>
        dependency>
        
        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatis-springartifactId>
            <version>1.3.2version>
        dependency>
        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>5.2.6.RELEASEversion>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-jdbcartifactId>
            <version>5.2.6.RELEASEversion>
        dependency>
    dependencies>

    
    <build>
        <resources>
            <resource>
                <directory>src/main/javadirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                includes>
                <filtering>falsefiltering>
            resource>
            <resource>
                <directory>src/main/resourcesdirectory>
                <includes>
                    <include>**/*.propertiesinclude>
                    <include>**/*.xmlinclude>
                includes>
                <filtering>falsefiltering>
            resource>
        resources>
    build>
project>

3.resources文件夹下建databast.properties

jdbc.driver=com.mysql.cj.jdbc.Driver
#如果是MySQL8.0+ 需要配置serverTimezone
jdbc.url=jdbc:mysql://localhost:3306/mybatis?useSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC
jdbc.username=root
jdbc.password=wjlroot

4.resources文件夹下建mybatis-config.xml(mybatis核心配置文件)

<configuration>
    
    
    
    <typeAliases>
        <package name="com.qilin.pojo"/>
    typeAliases>
    
    
    <mappers>
        <mapper class="com.qilin.dao.BookMapper"/>
    mappers>
    
configuration>

5.resources文件夹下建applicationContext.xml(spring核心配置文件)

<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
        https://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>

6.pojo层编写Books实体类

package com.qilin.pojo;

public class Books {
     

    private int bookId;
    private String bookName;
    private int bookCount;
    private String deail;

    public Books() {
     
    }

    public Books(int bookId, String bookName, int bookCount, String deail) {
     
        this.bookId = bookId;
        this.bookName = bookName;
        this.bookCount = bookCount;
        this.deail = deail;
    }

    public int getBookId() {
     
        return bookId;
    }

    public void setBookId(int bookId) {
     
        this.bookId = bookId;
    }

    public String getBookName() {
     
        return bookName;
    }

    public void setBookName(String bookName) {
     
        this.bookName = bookName;
    }

    public int getBookCount() {
     
        return bookCount;
    }

    public void setBookCount(int bookCount) {
     
        this.bookCount = bookCount;
    }

    public String getDeail() {
     
        return deail;
    }

    public void setDeail(String deail) {
     
        this.deail = deail;
    }

    @Override
    public String toString() {
     
        return "Books{" +
                "bookId=" + bookId +
                ", bookName='" + bookName + '\'' +
                ", bookCount=" + bookCount +
                ", deail='" + deail + '\'' +
                '}';
    }
}

7.dao层编写BookMapper接口

package com.qilin.dao;

import com.qilin.pojo.Books;
import org.apache.ibatis.annotations.Param;
import java.util.List;

public interface BookMapper {
     

    //增加一本书
    int addBook(Books books);

    //删除一本书
    void deleteBookById(@Param("bookId") int id);

    //更新一本书
    void updateBookById(Books books);

    //查询一本书
    Books queryBookById(@Param("bookId") int id);

    //查询所有书
    List<Books> queryAllBooks();
}

8.dao层编写BookMapper.xml

<mapper namespace="com.qilin.dao.BookMapper">

    <insert id="addBook" parameterType="Books">
        insert into ssmbuild.books(bookName, bookCount, detail)
        VALUES (#{bookName},#{bookCount},#{detail});
    insert>
    
    <delete id="deleteBookById" parameterType="int">
        delete from ssmbuild.books where bookId=#{bookId};
    delete>

    <update id="updateBookById" parameterType="Books">
        update ssmbuild.books
        set bookName=#{bookName},bookCount=#{bookCount},detail=#{detail}
        where bookId=#{bookId};
    update>

    <select id="queryBookById" resultType="Books">
        select * from ssmbuild.books where bookId=#{bookId};
    select>

    <select id="queryAllBooks" resultType="Books">
        select * from ssmbuild.books;
    select>


    
mapper>

9.resources文件夹下建spring-dao.xml(spring整合dao)

<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
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">
    

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

    
    <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="acquireIncrement" value="2"/>
    bean>

    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" value="dataSource"/>
        
        <property name="configLocation" value="mybatis-config.xml"/>
    bean>

    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        
        <property name="basePackage" value="com.qilin.dao"/>
    bean>
beans>

10.resources文件夹下建spring-service.xml(spring整合service)

<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
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd">
    

    
    <context:component-scan base-package="com.qilin.service"/>

    
    <bean id="BookServiceImpl" class="com.qilin.service.BookServiceImpl">
        <property name="bookMapper" ref="bookMapper"/>
    bean>

    
    <bean id="TransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        
        <property name="dataSource" ref="dataSource"/>
    bean>

    
beans>

10.配置web.xml

<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">
    
    
    <servlet>
        <servlet-name>springmvcservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:spring-mvc.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>
    servlet>
    <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>/url-pattern>
    servlet-mapping>
    
    
    <filter>
        <filter-name>encodingfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>utf-8param-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>encodingfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

    
    
        
    
web-app>

11.配置spring-mvc.xml

<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
       https://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 https://www.springframework.org/schema/context/spring-context.xsd">

    
    <mvc:annotation-driven/>

    
    <mvc:default-servlet-handler/>

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

    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    bean>
beans>