初级maven增删改查

程序员文章站 2022-05-08 11:27:14

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细节决定成败，成功就是比别人优秀一点点

一：创建一个Maven项目

初级maven增删改查

然后一直ok就可以了

初级maven增删改查

二，pom.xml导入相应的包


<?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>com.bdqn</groupId>
  <artifactId>HelloMaven</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>HelloMaven 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>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <spring.version>4.1.4.RELEASE</spring.version>
    <jackson.version>2.5.0</jackson.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.6</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>javax.servlet.jsp-api</artifactId>
      <version>2.2.1</version>
      <scope>provided</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.47</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/taglibs/standard -->
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>


    <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.1.2</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.6</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->


    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-expression</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.1.3.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/log4j/log4j -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/aopalliance/aopalliance -->
    <dependency>
      <groupId>aopalliance</groupId>
      <artifactId>aopalliance</artifactId>
      <version>1.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.13</version>
    </dependency>
    <dependency>
      <groupId>org.testng</groupId>
      <artifactId>testng</artifactId>
      <version>RELEASE</version>
      <scope>compile</scope>
    </dependency>

    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>HelloMaven</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

三.springmvc.xml文件配置

<?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:mvc="http://www.springframework.org/schema/mvc"
       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/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">
    <!-- 依赖注入contrlloer-->
   <context:component-scan base-package="com.web"></context:component-scan>
<mvc:annotation-driven></mvc:annotation-driven>
    <!-- 配置视图-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"></property>
        <property name="suffix" value=".jsp"></property>
     </bean>
</beans>

四.创建mybatist-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>
    <!-- 1、链接数据库  2、引入mapper文件  -->
    <mappers>
        <mapper resource="SaleMapper.xml"></mapper>

    </mappers>
</configuration>

五.创建applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
     <!-- 1、加载数据库的驱动   2、链接mybatis SqlsessionFactory

      3、加载SqlsessionTemplete  4、用注解注入service和dao
-->
     <!-- 2/配置SqlsessinFactoryBean-->

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/ssm_xx?useUnicode=true&amp;characterEncoding=utf-8"></property>
        <property name="username" value="root"></property>
        <property name="password" value=""></property>
    </bean>


    <bean id="sqlsessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mybatist-config.xml">

        </property>

    </bean>
     <!-- sqlsessionTemplete-->
     <bean id="sqlsessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
          <constructor-arg name="sqlSessionFactory" ref="sqlsessionFactory"></constructor-arg>
     </bean>
    <!-- 放mapper的全路径的包名-->

    <!-- 放mapper的全路径的包名-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.mapper"></property>
    </bean>
    <!-- 放service的全路径的包名-->
    <context:component-scan base-package="com.service"></context:component-scan>
    <context:component-scan base-package="com.mapper"></context:component-scan>
</beans>

六.创建log4j.properties

# rootLogger是所有日志的根日志,修改该日志属性将对所有日志起作用
# 下面的属性配置中,所有日志的输出级别是debug,输出源是con
log4j.rootLogger=debug,con
# 定义输出源的输出位置是控制台
log4j.appender.con=org.apache.log4j.ConsoleAppender
# 定义输出日志的布局采用的类
log4j.appender.con.layout=org.apache.log4j.PatternLayout
# 定义日志输出布局
log4j.appender.con.layout.ConversionPattern=%d{MM-dd HH:mm:ss}[%p]%c%n -%m%n

七.创建SaleMapper.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.mapper.SaleMapper">

    <resultMap id="Salemap" type="com.pojo.Sale">
        <id property="id" column="id"/>
        <result property="price" column="price"></result>
        <result property="quantity" column="quantity"></result>
        <result property="totalPrice" column="totalPrice"></result>
        <result property="saleDate" column="saleDate"></result>
        <collection property="product" javaType="com.pojo.Product">
            <id property="id" column="id"/>
            <result property="productName" column="productName"></result>
            <result property="quantity" column="quantity"></result>
        </collection>
        <collection property="users" javaType="com.pojo.Users">
            <id property="id" column="id"/>
            <result property="userName" column="userName"></result>
            <result property="password" column="password"></result>
            <result property="realName" column="realName"></result>
        </collection>
    </resultMap>
    <select id="findSale" resultMap="Salemap">
        SELECT *
        FROM
        sale
        AS a
        INNER JOIN product AS b ON a.productId = b.id
        INNER JOIN users AS c ON a.userId = c.id
    </select>

 <select id="findSalebydate" resultMap="Salemap">
        SELECT *
        FROM
        sale
        AS a
        INNER JOIN product AS b ON a.productId = b.id
        INNER JOIN users AS c ON a.userId = c.id
        ORDER BY a.saleDate ASC
    </select>
    <select id="findSalebyp" resultMap="Salemap">
        SELECT *
        FROM
        sale
        AS a
        INNER JOIN product AS b ON a.productId = b.id
        INNER JOIN users AS c ON a.userId = c.id
        ORDER BY a.totalPrice ASC
    </select>
    <select id="findlogin" parameterType="com.pojo.Users" resultType="java.lang.Integer">
        SELECT COUNT(*) FROM Users WHERE userName=#{userName} and password=#{password}
    </select>
    <select id="findProduct" resultType="com.pojo.Product">
         SELECT * FROM Product
    </select>
</mapper>

八.创建实体类、Mapper程、Service层、Web层

。。。。。。。

九.部署项目

初级maven增删改查