spring boot 學習--08---搭建ssmm-01

前言：現在在企業中一般都是用SSMM框架來進行開發。
SSMM（springmvc + spring + mybatis+ mysql）

從分層角度來說
- springmvc 控制層
- spring service 層
- mybatis dao層
- mysql 數據庫

從我個人而言，需要用springboot來搭建SSMM框架，前提是能先用xml配置的方式搭建起來，這樣在用springboot的時候，可以思路清晰一些，下面就開始來搭建，我先搭建一份xml 格式SSMM，在由xml 轉向springboot，這樣就會發現springboot的配置是怎麼來的。

思路
- 創建maven項目
- 導入pom.xml
- 配置web.xml
- 配置數據庫連接，連接池，sessionFactory，事務,掃描注入的配置
- 創建數據庫
- 寫測試用例
- 測試添加
- 測試事物
- 完成基本搭建。
- 後續可以繼續配置springmvc

按照上面的思路現在來開始搭建

（1）.創建一個maven項目
（2）.導入pomx.ml

<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.study</groupId>
  <artifactId>boot-study-ssmm-xml</artifactId>
  <version>1.0.0</version>
  <packaging>war</packaging>
   <build>
    <plugins>
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.2</version>
      </plugin>
    </plugins>
  </build>

   <properties>
    <java-version>1.7</java-version>
    <junit-version>4.8.2</junit-version>
    <org.springframework-version>3.2.4.RELEASE</org.springframework-version>
    <jackson-mapper-asl-version>1.9.12</jackson-mapper-asl-version>
    <jackson-core-asl-version>1.9.12</jackson-core-asl-version>
    <mysql-connector-java-version>5.1.8</mysql-connector-java-version>
    <org.mybatis-version>3.2.7</org.mybatis-version>
    <org.mybatis-spring-version>1.2.2</org.mybatis-spring-version>
    <opensymphony-version>2.4.2</opensymphony-version>
    <freemarker-version>2.3.9</freemarker-version>
    <c3p0-version>0.9.1.2</c3p0-version>
    <commons-collections-version>1.0</commons-collections-version>
    <commons-fileupload-version>1.2.2</commons-fileupload-version>
    <org.apache.commons-version>3.1</org.apache.commons-version>
    <commons-codec-version>1.6</commons-codec-version>
    <dom4j-version>1.6.1</dom4j-version>
    <javax.servlet-version>1.2</javax.servlet-version>
    <aspectjweaver-version>1.6.6</aspectjweaver-version>
    <slf4j-log4j12-version>1.6.6</slf4j-log4j12-version>
    <log4j-version>1.2.16</log4j-version>
    <javax.servlet-jsp-version>2.0</javax.servlet-jsp-version>
    <cglib-version>2.2.2</cglib-version>
    <slf4j-api-version>1.6.6</slf4j-api-version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
  <dependencies>
        <!-- with junit4.8.2 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit-version}</version>
            <type>jar</type>
        </dependency>
        <!-- with spring -->
        <dependency>  
          <groupId>org.springframework</groupId>  
          <artifactId>spring-core</artifactId>  
          <version>${org.springframework-version}</version>  
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-instrument</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-instrument-tomcat</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <!--springmvc 轉 Json-->
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>${jackson-mapper-asl-version}</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-core-asl</artifactId>
            <version>${jackson-core-asl-version}</version>
        </dependency>
        <!--freemarker-->
        <dependency>
            <groupId>freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>${freemarker-version}</version>
        </dependency>
        <!-- with mybatis-spring -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${org.mybatis-version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${org.mybatis-spring-version}</version>
        </dependency>
        <!-- jdbc driver -->
         <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql-connector-java-version}</version>
         </dependency>
         <!-- connect pool with c3p0 -->
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>${c3p0-version}</version>
        </dependency>
                <!-- apache commons jar -->
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>${commons-collections-version}</version>
        </dependency>

        <dependency>
          <groupId>commons-fileupload</groupId>
          <artifactId>commons-fileupload</artifactId>
          <version>${commons-fileupload-version}</version>
        </dependency>

        <dependency>
          <groupId>org.apache.commons</groupId>
          <artifactId>commons-lang3</artifactId>
          <version>${org.apache.commons-version}</version>
        </dependency>

        <dependency>
          <groupId>commons-codec</groupId>
          <artifactId>commons-codec</artifactId>
          <version>${commons-codec-version}</version>
        </dependency>
                <!-- analyze xml use dom4j -->
        <dependency>
           <groupId>dom4j</groupId>
           <artifactId>dom4j</artifactId>
           <version>${dom4j-version}</version>
        </dependency>
                <!-- about servlet -->
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jstl</artifactId>
          <version>${javax.servlet-version}</version>
        </dependency>

        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.0.1</version>
            <scope>provided</scope>
        </dependency>
                <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        <version>1.6.6</version> 
       </dependency> 
        <dependency>
          <groupId>log4j</groupId>
          <artifactId>log4j</artifactId>
          <version>1.2.17</version>
        </dependency>

        <dependency>
             <groupId>org.slf4j</groupId>     
             <artifactId>slf4j-api</artifactId>     
             <version>1.6.6</version>
         </dependency>
        <dependency>
            <groupId>javax.activation</groupId>
            <artifactId>activation</artifactId>
            <version>1.1.1</version>
         </dependency>

         <!-- memcached -->
        <dependency>
            <groupId>com.google.code.maven-play-plugin.spy</groupId>
            <artifactId>memcached</artifactId>
            <version>2.4.2</version>
        </dependency>

        <!-- <dependency>
            <groupId>com.danga</groupId>
            <artifactId>memcached</artifactId>
            <version>2.0.1</version>
        </dependency>

        <dependency>
            <groupId>memcached-util</groupId>
            <artifactId>memcached</artifactId>
            <version>1.1</version>
        </dependency> -->

        <dependency>
          <groupId>cglib</groupId>
          <artifactId>cglib</artifactId>
          <version>${cglib-version}</version>
        </dependency>

        <dependency>
            <groupId>net.fckeditor</groupId>
            <artifactId>java-core</artifactId>
            <version>2.6</version>
        </dependency>

        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20131018</version>
        </dependency>

        <dependency>
            <groupId>oscache</groupId>
            <artifactId>oscache</artifactId>
            <version>2.4.1</version>
        </dependency>
        <!--jerson -->
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-client</artifactId>
            <version>1.18.1</version>
        </dependency>
        <!--jcaptcha -->
        <!-- <dependency>
            <groupId>com.octo.captcha</groupId>
            <artifactId>jcaptcha-my</artifactId>
            <version>1.0</version>
        </dependency> -->
        <!--page -->
        <!-- <dependency>
            <groupId>cn.itcast</groupId>
            <artifactId>page</artifactId>
            <version>1.0</version>
        </dependency> -->
  </dependencies>
</project>

（3）配置web.xml
- 一般我們在配置web.xml 首先會配置web.xml的頭

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:javaee="http://java.sun.com/xml/ns/javaee"
    xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
    id="WebApp_ID" version="2.4">

配置spring監聽

<!-- Spring監聽 -->
    <listener >
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

擴展下：
一般在這裏我們會配置spring監聽的spring配置文件路徑，默認情況下是/WEB-INF/applicationContext.xml
這裏我們可以去看下源碼，到底是爲什麼要這麼配置

監聽器，發現是繼承ContextLoader

繼續，我們去查看下ContextLoader 源碼

發現這個就是我們平時配置的Context-param，原來是這麼來的，看註解發現我們可以去org.springframework.web.context.support.XmlWebApplicationContext#DEFAULT_CONFIG_LOCATION 看下監聽器的默認配置

繼續查看XmlWebApplicationContext

到這裏，明白了吧，原來默認配置在這裏哈。

繼續配置我們的監聽文件路徑，一般我習慣不用默認配置，設置如下

    <!-- spring監聽文件地址 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:application-context.xml</param-value>
    </context-param>

創建application-context.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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
    <import resource="config/*.xml" />
</beans>

創建文件夾 config

（3）在文件夾下配置數據庫連接，連接池，sessionFactory，事務,掃描注入的配置
- 掃描
- 創建annotation.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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

     <!-- 掃描配置，排除掃描controller -->
     <context:component-scan base-package="com.study">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
     </context:component-scan>
     <!-- 隱式地向 Spring容器註冊AutowiredAnnotationBeanPostProcessor、
     RequiredAnnotationBeanPostProcessor、CommonAnnotationBeanPostProcessor
     以及PersistenceAnnotationBeanPostProcessor這4個BeanPostProcessor -->
     <context:annotation-config/>

</beans>

數據庫連接 - 讀取配置文件
創建properties.xml（讀取配置文件）

<?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:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

     <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <!-- 配置Jdbc -->
                <value>classpath:properties/jdbc.properties</value> 

            </list>

        </property>
     </bean>  
</beans>

jdbc連接

<?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:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${driverClass}"/>
        <property name="jdbcUrl" value="${jdbcUrl}"></property>
        <property name="user" value="${user}" />
        <property name="password" value="${password}"/>

    </bean>


</beans>

mybatis 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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

    <bean   class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />

        <property name="typeAliasesPackage" value="com.study.bean"/>
        <!-- <property name="configLocation" value="classpath:mybatis-config.xml"/> -->

    </bean>

     <!-- 配置Mybatis掃描 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.study.dao"/>
    </bean>


</beans>

創建事務transation.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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

        <!-- spring 事務 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 開啓註解事務-->
    <tx:annotation-driven transaction-manager="transactionManager"/>


</beans>

在properties文件中創建jdbc.properties

driverClass=com.mysql.jdbc.Driver
jdbcUrl=jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8
user=root
password=

配置文件到這裏就結束了，終於結束了。。

（4）開始創建數據庫

創建 test數據庫，創建下面的表

CREATE TABLE `test_tb` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) DEFAULT NULL,
  `birthday` datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

（5）寫測試用例
一般我會寫一個通用的BaseTest,這樣其他測試類直接繼承就可以開始測試，不用去理會測試環境的配置

package com.study.test;

import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:application-context.xml"})
public class BaseTest {


}


package com.study.test;

import java.util.Date;

import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import com.study.bean.TestTb;
import com.study.service.TestTbService;

public class TestTestTb extends BaseTest{
    @Autowired
    private TestTbService testTbService;

    @Test
    public void test_add(){
        TestTb tb = new TestTb();
        tb.setName("test");
        tb.setBirthday(new Date());
        testTbService.add(tb);
    }
}

（6）寫model,service,dao,mapper，開始測試

附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.study.dao.TestTbDao">
    <!--  添加測試數據  -->
    <insert id="addTestTb" parameterType="TestTb">
        insert into test_tb
        (name,birthday)
        values
        (#{name},#{birthday})
    </insert>
</mapper>

其他代碼比較簡單，就不附上了

（7）測試事務，一般寫測試事務的時候，我會在service層拋出異常，如果異常拋出，數據數據沒有添加成功，則事務配置成功，反之則沒有成功。

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