MyBatis(一)-----ssm的整合 跑起來

時間  2019-11-06
標籤 mybatis ssm 整合 起來 欄目 MyBatis 简体版
原文   原文鏈接

SpringMVC+Spring+MyBatis 具體的框架整合流程再也不贅述 只貼全部配置文件css

能夠參考：https://www.cnblogs.com/hackyo/p/6646051.htmlhtml

非框架整合的實例能夠學習：https://blog.csdn.net/u012562943/article/details/50403099java

1、首先使用idea新建一個Maven webapp項目mysql

　　

　　

　　

　　

2、目錄結構：git

一、pom文件github

<?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.google</groupId>
  <artifactId>ssm01</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssm01 Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <!-- 設置項目編碼編碼 -->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <!-- spring版本號 -->
    <spring.version>4.3.5.RELEASE</spring.version>
    <!-- mybatis版本號 -->
    <mybatis.version>3.4.1</mybatis.version>
  </properties>

  <dependencies>

    <!-- java ee -->
    <dependency>
      <groupId>javax</groupId>
      <artifactId>javaee-api</artifactId>
      <version>7.0</version>
    </dependency>

    <!-- 單元測試 -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
    </dependency>

    <!-- 實現slf4j接口並整合 -->
    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>1.2.2</version>
    </dependency>

    <!-- JSON -->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.8.7</version>
    </dependency>


    <!-- 數據庫 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.41</version>
      <scope>runtime</scope>
    </dependency>

    <!-- 數據庫鏈接池 -->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.2</version>
    </dependency>

    <!-- MyBatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <!-- mybatis/spring整合包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>

    <!-- Spring -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!--mybatis分頁-->
    <!-- pagehelpers -->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>4.1.6</version>
    </dependency>
    <dependency>
      <groupId>com.github.jsqlparser</groupId>
      <artifactId>jsqlparser</artifactId>
      <version>0.9.6</version>
    </dependency>


    <!--文件 上傳-->
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.3.1</version>
    </dependency>

  </dependencies>



  

  <build>
    <finalName>ssm01</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>3.0.0</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>3.7.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.20.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.0</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>

2applicationContext.xmlweb

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:c="http://www.springframework.org/schema/c" xmlns:cache="http://www.springframework.org/schema/cache"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"
       xmlns:lang="http://www.springframework.org/schema/lang" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"
       xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
		http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
		http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
		http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
		http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

    <!--********************************************配置Spring***************************************-->
    <!-- 自動掃描 -->
    <context:component-scan base-package="com.test">
        <!-- 掃描時跳過 @Controller 註解的JAVA類（控制器） -->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>


    <import resource="spring-mybatis.xml" />
</beans>

3.spring-mvc.xmlspring

<?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-3.0.xsd">

    <!-- 自動掃描該包，使SpringMVC認爲包下用了@controller註解的類是控制器 -->
    <context:component-scan base-package="com.test.controller"/>

    <!-- 開啓SpringMVC註解模式 -->
    <mvc:annotation-driven/>



    <!-- 定義跳轉的文件的先後綴 ，視圖模式配置-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>


    <!-- 配置文件上傳，若是沒有使用文件上傳能夠不用配置，固然若是不配，那麼配置文件中也沒必要引入上傳組件包 -->
    <bean id="multipartResolver"
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 默認編碼 -->
        <property name="defaultEncoding" value="utf-8" />
        <!-- 文件大小最大值 -->
        <property name="maxUploadSize" value="10485760000" />
        <!-- 內存中的最大值 -->
        <property name="maxInMemorySize" value="40960" />
    </bean>

    <!-- 靜態資源默認servlet配置 -->
    <mvc:default-servlet-handler/>
    <!-- 靜態資源的處理 -->
     <mvc:resources mapping="/static/**" location="/static/" />
    <!-- <mvc:resources mapping="/js/**" location="/static/js/" />
     <mvc:resources mapping="/css/**" location="/static/css/" />
     <mvc:resources mapping="/images/**" location="/static/images/" />
    <mvc:resources mapping="/views/**" location="/WEB-INF/views/" />-->



</beans>

四、spring-myBatis,xmlsql

<?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:tx="http://www.springframework.org/schema/tx"
       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/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd">



    <!-- 掃描service包下全部使用註解的類型 -->
    <context:component-scan base-package="com.test.service"/>

    <!-- 配置數據庫相關參數properties的屬性：${url} -->
    <context:property-placeholder location="classpath:META-INF/jdbc.properties"/>

    <!-- 數據庫鏈接池 -->
    <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="${c3p0.maxPoolSize}"/>
        <property name="minPoolSize" value="${c3p0.minPoolSize}"/>
        <property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>
        <property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>
        <property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/>
    </bean>

    <!-- 配置SqlSessionFactory對象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入數據庫鏈接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 掃描model包 使用別名 -->
        <property name="typeAliasesPackage" value="com.test.model"/>
        <!-- 掃描sql配置文件:mapper須要的xml文件 -->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>

        <property name="configLocation" value="classpath:META-INF/mybatis-config.xml"></property>
        <!-- 分頁插件配置 -->
        <property name="plugins">
            <array>
                <bean class="com.github.pagehelper.PageHelper">
                    <property name="properties">
                        <value>
                            dialect=mysql
                        </value>
                    </property>
                </bean>
            </array>
        </property>

    </bean>

    <!-- 配置掃描Dao接口包，動態實現Dao接口，注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 給出須要掃描Dao接口包 -->
        <property name="basePackage" value="com.test.dao"/>
    </bean>

    <!-- 配置事務管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入數據庫鏈接池 -->
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 配置基於註解的聲明式事務 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>





</beans>

五、jdbc.properts數據庫

jdbc.driver=com.mysql.jdbc.Driver
#數據庫地址
jdbc.url=jdbc:mysql://127.0.0.1:3306/ts_ms?useUnicode=true&characterEncoding=utf8
#用戶名
jdbc.username=root
#密碼
jdbc.password=123456
#最大鏈接數
c3p0.maxPoolSize=30
#最小鏈接數
c3p0.minPoolSize=10
#關閉鏈接後不自動commit
c3p0.autoCommitOnClose=false
#獲取鏈接超時時間
c3p0.checkoutTimeout=10000
#當獲取鏈接失敗重試次數
c3p0.acquireRetryAttempts=2

六、logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true">
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>
    <root level="debug">
        <appender-ref ref="STDOUT"/>
    </root>
</configuration>

3、具體實現單表user的crud

大體結構

一、controller層（與ssh徹底同樣）

package com.test.controller;

import com.demo.pojo.Json;
import com.demo.pojo.PageHelper;
import com.test.model.User;
import com.test.service.IUserService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.annotation.Resource;
import java.util.List;

@Controller
@RequestMapping(value = "/user")
public class UserController {
    @Resource
    private IUserService userService;

    @RequestMapping(value = "/save")
    @ResponseBody
    public Object saveUser(User user)
    {
        try{
            userService.insertUser(user);
            return new Json(true,"添加成功",null);
        }
        catch (Exception e)
        {
            return new Json(false,"添加失敗："+e.getMessage(),null);
        }




    }
    @RequestMapping(value = "/toAdd")
    public String toAdd()
    {
        return "user/add";
    }

    @RequestMapping(value ="/del" )
    public void delUser(String ids)
    {
        userService.deleteUser(ids);
    }

    @RequestMapping(value = "/getOne")
    public User getOneUser(String id)
    {
      return   userService.selectUserById(id);
    }

    @RequestMapping(value = "/update")
    public void updateUser(User user)
    {
        userService.updataUser(user);
    }


    @RequestMapping(value = "/all")
    @ResponseBody
    public List allUser(PageHelper pageHelper)
    {
      return   userService.selectAlluser(pageHelper);
    }

}

二、servicec層（與ssh徹底同樣，service接口省略）

package com.test.service.impl;

import com.demo.Utils.CommonUtils;
import com.demo.pojo.PageHelper;
import com.test.dao.IUserDao;
import com.test.model.User;
import com.test.service.IUserService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;
@Service
public class UserServiceImpl implements IUserService {
    @Resource
    private IUserDao userDao;


    public int insertUser(User user) {
        user.setId(CommonUtils.getUUID());
        userDao.insertUser(user);
        return 0;
    }

    public String deleteUser(String ids) {
        userDao.delUser(ids);
        return ids;
    }

    public String updataUser(User user) {
        userDao.updateUser(user);
        return user.getId();
    }


    public User selectUserById(String id) {
        return userDao.selectUserById(id);
    }


    public List selectAlluser(PageHelper pageHelper) {

        return userDao.selectAllUser(pageHelper);
    }
}

3dao層只寫接口

package com.test.dao;

import com.demo.pojo.PageHelper;
import com.test.model.User;

import java.util.List;

public interface IUserDao {
    /**
     *添加用戶
     * @param user
     * @return
     */
    int insertUser(User user);

    /**
     * 刪除用戶
     * @param id
     * @return
     */
    void delUser(String id);

    /**
     * 修改用戶
     * @param user
     * @return
     */
    String updateUser(User user);

    /**
     * 根據id查用戶
     * @return
     */
    User selectUserById(String id);

    /**
     * 查找全部用戶
     * @return
     */
    List<User> selectAllUser(PageHelper pageHelper);
}

四、mapper

<?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.test.dao.IUserDao"><!-- 對應dao層接口的名字 -->
    <!-- 自定義返回結果集 -->
    <resultMap id="userMap" type="com.test.model.User">
        <id property="id" column="id" javaType="java.lang.String"></id>
        <result property="username" column="username" javaType="java.lang.String"></result>
        <result property="password" column="password" javaType="java.lang.String"></result>
    </resultMap>
    <!-- 在各類標籤中的id屬性必須和接口中的方法名相同 ， id屬性值必須是惟一的，不可以重複使用。parameterType屬性指明查詢時使用的參數類型，
    resultType屬性指明查詢返回的結果集類型-->
    <!-- useGeneratedKeys：（ 僅 對 insert 有 用 ） 這 會 告 訴 MyBatis 使 用 JDBC 的getGeneratedKeys
     方法來取出由數據（好比：像 MySQL 和 SQLServer 這樣的數據庫管理系統的自動遞增字段）內部生成的主鍵。默認值： false。
     oracle 不支持應該設置成 useGeneratedKeys="false" 否則會報錯
-->
    <!--keyProperty： （僅對 insert有用）標記一個屬性， MyBatis 會經過 getGeneratedKeys或者經過 insert 語句的 selectKey 子元素設置它的值。默認：不設置。 -->
    <!--#{}中的內容，爲佔位符，當參數爲某個JavaBean時，表示放置該Bean對象的屬性值  -->

    <insert  id="insertUser" parameterType="com.test.model.User">
        INSERT INTO  t_user (id,username,password) VALUES (#{id},#{username},#{password})
    </insert>

    <delete id="delUser" parameterType="String" >
        DELETE FROM t_user WHERE id=#{id}
    </delete>

    <update id="updateUser" parameterType="com.test.model.User">
        UPDATE t_user SET username=#{username},password=#{password} WHERE id=#{id}
    </update>

    <select id="selectUserById" parameterType="String" >
        SELECT * FROM t_user WHERE id=#{id}
    </select>

    <select id="selectAllUser" resultMap="userMap">
        SELECT * FROM t_user
    </select>

</mapper>

總結：與ssh相比總體無差異 controlle層、model層（省去關係映射 建表註解）、service層不變，只是dao層只寫接口 而後映射到xml文件 寫sql語句 完成orm操做

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