ssm整合(实现一个小项目的增删改查) 2

简介: ssm整合(实现一个小项目的增删改查)

导入pom依赖

<?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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.example</groupId>
  <artifactId>sys_service</artifactId><!--我的和你的不一样根据自己的地址写-->
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>
  <name>sys_service Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>8</maven.compiler.source><!--jdk改为8-->
    <maven.compiler.target>8</maven.compiler.target>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <spring.version>5.2.5.RELEASE</spring.version>
  </properties>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <!--  log4j 日志jar -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
    <!--  连接mysql5 的驱动  -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.29</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</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>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.2</version>
    </dependency>
    <!--  mybatis依赖  -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.2.2</version>
    </dependency>
    <!--  参考版本对应 http://www.mybatis.org/spring/  -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.2.2</version>
    </dependency>
    <!--  数据源管理  使用了dbcp2数据  -->
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-dbcp2</artifactId>
      <version>2.1.1</version>
    </dependency>
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-pool2</artifactId>
      <version>2.4.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!--  commons 文件上传jar  -->
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.1</version>
    </dependency>
    <!--  jstl  -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!--  加入JSON转换工具  -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.47</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>springMVC01</finalName>
  </build>
</project>

配置mybatis

<?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>
        <setting name="logImpl" value="LOG4J"/>
    </settings>
</configuration>

mybatis中不再配置jdbc都交给spring处理,此配置文件中只放log4j日志

配置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:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:p="http://www.springframework.org/schema/p"
       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/tx
  http://www.springframework.org/schema/tx/spring-tx.xsd
  http://www.springframework.org/schema/aop
  http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context.xsd
">
    <!--加载属性文件-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
    <!--创建dbcp2数据源,此数据源可以替换为阿里的 德鲁伊-->
    <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${driver}"></property>
        <property name="url" value="${url}"></property>
        <property name="username" value="${user}"></property>
        <property name="password" value="${pwd}"></property>
    </bean>
    <!--整合了slqSessionFactory包含了数据源(dataSource),配置文件(config)和映射文件(mapper)-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mybatis.xml"></property>
        <property name="mapperLocations" value="classpath:mappers/*.xml"></property>
    </bean>
    <!--扫描Mapper接口-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.book.mapper"></property>
    </bean>
    <!--扫描业务逻辑层注解-->
    <context:component-scan base-package="com.book"></context:component-scan>
    <!--引入事务管理器,管理指定的数据源-->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" autowire="byName">
    </bean>
    <!--把事务管理,变成增强(通知),同时指定了方法的事务传播机制-->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED"/>
            <tx:method name="update**" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut id="servicePointcut" expression="execution(* com.book.service.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="servicePointcut"></aop:advisor>
    </aop:config>
       <!--引用springmvc配置文件-->
    <import resource="springmvc.xml"></import>
</beans>

一定要记得在配置spring配置文件要引用springmvc配置文件。

配置springmvc

<?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
  http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
    <context:component-scan base-package="com.book"></context:component-scan>
    <mvc:annotation-driven>
        <mvc:message-converters>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <value>application/json;charset=UTF-8</value>
                        <value>text/html;charset=UTF-8</value>
                    </list>
                </property>
            </bean>
            <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                <property name="supportedMediaTypes">
                    <list>
                        <value>text/html;charset=UTF-8</value>
                        <value>application/json</value>
                    </list>
                </property>
                <property name="features">
                    <list>
                        <!-- Date的日期转换器 -->
                        <value>WriteDateUseDateFormat</value>
                    </list>
                </property>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>
    <!--转发时的前后坠-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"></property><!--前缀-->
        <property name="suffix" value=""></property><!--后缀-->
    </bean>
    <!--设置存放图片的静态文件夹-->
    <mvc:resources mapping="/static/**" location="/static/"></mvc:resources>
    <!--  配置multipartResolver,用于上传文件,使用spring的CommonsMultipartResolver  -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxInMemorySize" value="5000000"></property>
        <property name="defaultEncoding" value="UTF-8"></property>
    </bean>
</beans>

配置web

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >
<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">
  <display-name>Archetype Created Web Application</display-name>
  <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.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>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

测试增删改查流程

1.编写实体类

2.编写mapper层

3.编写service层

4.编写controller层

5.网页测试

编写实体类

package com.book.bean;
import com.alibaba.fastjson.annotation.JSONField;
import org.springframework.format.annotation.DateTimeFormat;
import java.util.Date;
public class Bookmanage {
    private Integer id;
    private String name;
    private String author;
    @DateTimeFormat(pattern = "yyyy-MM-dd")//事件类型转换注解
    @JSONField(format = "yyyy-MM-dd")
    private Date time;
    private Integer type;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getAuthor() {
        return author;
    }
    public void setAuthor(String author) {
        this.author = author;
    }
    public Date getTime() {
        return time;
    }
    public void setTime(Date time) {
        this.time = time;
    }
    public Integer getType() {
        return type;
    }
    public void setType(Integer type) {
        this.type = type;
    }
}

编写Mapper接口

package com.book.mapper;
import com.book.bean.Bookmanage;
import java.util.List;
public interface BookmanageMapper {
    List<Bookmanage> getBookmanageList(Bookmanage bookmanage);
    int addBookmanage(Bookmanage bookmanage);
    Bookmanage getBookmanagebyid(int id);
    int updateBookmanage(Bookmanage bookmanage);
    int deleteBookmanagebyid(int id);
}

mybatis实现

<?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.book.mapper.BookmanageMapper">
    <select id="getBookmanageList" resultType="com.book.bean.Bookmanage" parameterType="com.book.bean.Bookmanage">
        SELECT id,name,author,time,type FROM `bookmanage`
        <where>
            <if test="id!=null">
                and id=#{id}
            </if>
            <if test="name!=null">
                and name=#{name}
            </if>
            <if test="author!=null">
                and author=#{author}
            </if>
            <if test="time!=null">
                and time=#{time}
            </if>
            <if test="type!=null">
                and type=#{type}
            </if>
        </where>
    </select>
    <insert id="addBookmanage" parameterType="com.book.bean.Bookmanage">
        insert into bookmanage(name,author,time,type)value(#{name},#{author},#{time},#{type})
    </insert>
    <select id="getBookmanagebyid" resultType="com.book.bean.Bookmanage" parameterType="int">
        SELECT id,name,author,time,type FROM `bookmanage` where id=#{id}
    </select>
    <update id="updateBookmanage" parameterType="com.book.bean.Bookmanage">
        update bookmanage
        <set>
            <if test="id!=null">
                id=#{id},
            </if>
            <if test="name!=null">
                name=#{name},
            </if>
            <if test="author!=null">
                author=#{author},
            </if>
            <if test="time!=null">
                time=#{time},
            </if>
            <if test="type!=null">
                type=#{type},
            </if>
        </set>
            where id=#{id}
    </update>
    <delete id="deleteBookmanagebyid" parameterType="int">
        delete from bookmanage where id=#{id}
    </delete>
</mapper>


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