Java | Maven+SSM框架整合

作者: l王小一 | 来源:发表于2018-10-29 18:32 被阅读0次

Java | Maven+SSM框架整合
Maven + Spring + SpringMVC + MyB
【后台学习教程】基于SSM框架的JavaWeb搭建
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spring整合junit时遇到的小问题

技术如煤渣的我照着网上的各种教程搭基于maven项目的ssm框架不知失败了多少次，后来因为问题解决不了，心浮气躁，最后都不了了之。这次静下心来，一步一步走一步一步记录，一个问题一个问题解决，最终得以成功，特此记录一下，以后也养成随时记录问题的好习惯。

1. 新建maven项目

File → new Maven Project

1.png

2.png

3.png
next

4.png
然后finish. 至此一个maven项目就建好了

2.配置pom.xml

pom.xml文件是maven项目创建好之后自动生成的文件
里面配置项目中所用的jar包,会下载到本地的maven仓库

5.png

贴上pom.xml代码，供大家参考

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>www.yoyo.demo</groupId>
  <artifactId>springdemo</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>springdemo Maven Webapp</name>
  <url>http://maven.apache.org</url>
  
  <properties>    
        <!-- spring版本号 -->    
        <spring.version>4.0.2.RELEASE</spring.version>
        <!-- mybatis版本号 -->    
        <mybatis.version>3.2.6</mybatis.version>
        
        <!-- <spring.version>5.0.0.RELEASE</spring.version> 
        <mybatis.version>3.4.5</mybatis.version> -->
        <!-- log4j日志文件管理包版本 -->    
        <slf4j.version>1.7.7</slf4j.version>    
        <log4j.version>1.2.17</log4j.version>    
    </properties>  
  
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
     
        <!-- spring核心包 -->    
        <dependency>    
            <groupId>org.springframework</groupId>    
            <artifactId>spring-core</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-oxm</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.springframework</groupId>    
            <artifactId>spring-webmvc</artifactId>    
            <version>${spring.version}</version>    
        </dependency>    
        <dependency>    
            <groupId>org.springframework</groupId>    
            <artifactId>spring-aop</artifactId>    
            <version>${spring.version}</version>    
        </dependency>    
    
        <dependency>    
            <groupId>org.springframework</groupId>    
            <artifactId>spring-context-support</artifactId>    
            <version>${spring.version}</version>    
        </dependency>    
    
        <dependency>    
            <groupId>org.springframework</groupId>    
            <artifactId>spring-test</artifactId>    
            <version>${spring.version}</version>    
        </dependency>    
        <!-- mybatis核心包 -->    
        <dependency>    
            <groupId>org.mybatis</groupId>    
            <artifactId>mybatis</artifactId>    
            <version>${mybatis.version}</version>    
        </dependency>    
        <!-- mybatis/spring包 -->    
        <dependency>    
            <groupId>org.mybatis</groupId>    
            <artifactId>mybatis-spring</artifactId>    
            <version>1.2.2</version>    
        </dependency>    
        <!-- 导入java ee jar 包 -->    
        <dependency>    
            <groupId>javax</groupId>    
            <artifactId>javaee-api</artifactId>    
            <version>7.0</version>    
        </dependency>    
        <!-- 导入Mysql数据库链接jar包 -->    
        <dependency>    
            <groupId>mysql</groupId>    
            <artifactId>mysql-connector-java</artifactId>    
            <version>5.1.30</version>    
        </dependency>    
        <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->    
        <dependency>    
            <groupId>commons-dbcp</groupId>    
            <artifactId>commons-dbcp</artifactId>    
            <version>1.2.2</version>    
        </dependency>   
        <!-- 日志文件管理包 -->    
        <!-- log start -->    
        <dependency>    
            <groupId>log4j</groupId>    
            <artifactId>log4j</artifactId>    
            <version>${log4j.version}</version>    
        </dependency>    
        <!-- 格式化对象，方便输出日志 -->    
        <dependency>    
            <groupId>com.alibaba</groupId>    
            <artifactId>fastjson</artifactId>    
            <version>1.1.41</version>    
        </dependency>    
        <dependency>    
            <groupId>org.slf4j</groupId>    
            <artifactId>slf4j-api</artifactId>    
            <version>${slf4j.version}</version>    
        </dependency>    
        <dependency>    
            <groupId>org.slf4j</groupId>    
            <artifactId>slf4j-log4j12</artifactId>    
            <version>${slf4j.version}</version>    
        </dependency>    
        <!-- log end -->    
        <!-- 映入JSON -->    
        <dependency>    
            <groupId>org.codehaus.jackson</groupId>    
            <artifactId>jackson-mapper-asl</artifactId>    
            <version>1.9.13</version>    
        </dependency>      
  </dependencies>
  <build>
    <finalName>springdemo</finalName>
  </build>
</project>

3.然后创建各个层的包/类/接口/mapper

6.png

4.创建jdbc.properties数据库配置文件和spring-mybatis.xml文件

7.png

jdbc.properties内容如下

8.png

spring-mybatis.xml内容如下

<?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:p="http://www.springframework.org/schema/p"  
    xmlns:context="http://www.springframework.org/schema/context"  
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans    
                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
                        http://www.springframework.org/schema/context    
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                        http://www.springframework.org/schema/mvc    
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
                        http://www.springframework.org/schema/aop 
                        http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
                        http://www.springframework.org/schema/tx 
                        http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">  

<!-- 自动扫描 -->
 <context:component-scan base-package="com.yoyo.test"></context:component-scan>
 <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location" value="classpath:jdbc.properties" />
 </bean> 
 
 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="${driver}" />  
        <property name="url" value="${url}" />  
        <property name="username" value="${username}" />  
        <property name="password" value="${password}" />  
        <!-- 初始化连接大小 -->  
        <property name="initialSize" value="${initialSize}"></property>  
        <!-- 连接池最大数量 -->  
        <property name="maxActive" value="${maxActive}"></property>  
        <!-- 连接池最大空闲 -->  
        <property name="maxIdle" value="${maxIdle}"></property>  
        <!-- 连接池最小空闲 -->  
        <property name="minIdle" value="${minIdle}"></property>  
        <!-- 获取连接最大等待时间 -->  
        <property name="maxWait" value="${maxWait}"></property> 
 </bean>
 
 <!-- spring和mybatis完美整合,不需要mybatis的配置映射文件 -->
 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="mapperLocations" value="classpath:com/yoyo/test/mapper/*.xml"></property>
 </bean>
 
 <!-- DAO接口所在包名, spring会自动查找其下的类    -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.yoyo.test.dao"></property>  
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> 
 </bean>
 
 <!-- 事务管理  -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"></property>
 </bean>
 
 <tx:annotation-driven transaction-manager="transactionManager" />
 </beans>

下面就可以查询一下 ,测试我们的配置咯
右键 Run as → JUnit Test
(当然,过程中惊现了无数个bug, 都被一一解决才得到如此完美的结果)

9.png

至此, spring-mybatis的整合就结束了,下面继续整合springmvc

5.首先新建一个spring-mvc.xml

10.png

spring-mvc.xml内容如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:p="http://www.springframework.org/schema/p"
  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-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/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
    
    <!-- 扫描control -->
    <context:component-scan base-package="com.yoyo.test.control" use-default-filters="false">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    
    
    <mvc:annotation-driven/>
</beans>

然后配置web.xml
<?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/javaee" 
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
        version="3.0">
  <display-name>springdemo</display-name>
  <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mybatis.xml</param-value>
  </context-param>
    <welcome-file-list>  
        <welcome-file>/index.jsp</welcome-file>  
    </welcome-file-list> 
  
  <!-- springmvc核心配置 -->
  <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 加载springmvc配置文件 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>  
        <async-supported>true</async-supported> 
  </servlet>
  <!-- springmvc拦截器 -->
  <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- Spring监听器 -->  
    <listener>  
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
    </listener>  
   <!-- 加载log4j -->
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>classpath:log4j.properties</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener> 
</web-app>

这个时候就可以把项目添加到tomcat中运行了
运行下过如下

11.png

6.然后就可以写control模块代码了

image.png

至此ssm框架整合完毕

这次的ssm框架搭建成功，此篇博客孕育成功真的是和自己平静下来的内心分不开。代码是个看起来枯燥又有拥有着无限魅力的东西。希望在今后的代码之路上可以平静下来踏踏实实的走的更远。

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