在eclipse中使用spring,springmvc,mybatis搭建web项目

其他 2019-02-04 22:44:43 阅读次数: 0

前不久刚学过ssm框架的使用，在此记录下来，如果内容有误欢迎指正！

这篇文章只展示我建立项目的过程，至于各种配置这么写的原因在今后的时间里我会为Spring,Springmvc,mybatis各写一篇文章进行说明！

创建一个web项目

我使用的是eclipse，相信大多数新手都和我一样吧，新建web项目就不说了，各位应该都如喝水吃饭一样熟练了。

导入项目需要的jar包

我是在eclipse中建立的maven项目，因此在pom.xml中写导入jar包的配置，maven自行下载jar包，目前只会这一种导入jar包的方式。

  <dependencies>

        <!-- Spring MVC -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.9.RELEASE</version>
        </dependency>

        <!-- Spring JDBC -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.3.9.RELEASE</version>
        </dependency>

        <!-- 单元测试 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>

        <!-- MyBatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>

        <!-- MyBatis整合Spring -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.2</version>
        </dependency>

        <!-- 数据源/数据库连接池 -->
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>

        <!-- MySQL数据库连接驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.8</version>
        </dependency>

        <!-- Jackson -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.7</version>
        </dependency>

        <!-- 消息摘要 -->
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.10</version>
        </dependency>

        <!-- 文件上传 -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.3</version>
        </dependency>

    </dependencies>

编写web.xml配置文件

打开src/main/webapp/WEB-INF文件夹下的web.xml文件，在其中主要是配置DispatcherServlet,在其中添加如下配置：

<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> <!-- spring配置文件的路径，根据自己需要选择路径 -->
    </init-param>
    <load-on-startup>1</load-on-startup> <!-- 初始化优先级为1，使应用启动时就初始化DispatcherServlet -->
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>*.yc</url-pattern> <!-- 需要DispatcherServlet拦截的请求的路径 -->
  </servlet-mapping>

编写Spring配置文件

我习惯将spring文件拆分为3个来写，分别是spring-mvc.xml,spring-service.xml,spring-dao.xml。

spring-mvc.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:context="http://www.springframework.org/schema/context" 
    xmlns:jdbc="http://www.springframework.org/schema/jdbc"  
    xmlns:jee="http://www.springframework.org/schema/jee" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    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/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd">
    
    <!-- 组件扫描 -->
    <context:component-scan base-package="controller" /> <!-- controller所在的包路径 -->
        
    <!-- 配置视图解析器ViewResolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 配置前缀 -->
        <property name="prefix" value="/WEB-INF/" />
        <!-- 配置后缀 -->
        <property name="suffix" value=".jsp" />
        <!-- 经过以上配置后， -->
        <!-- 当前项目中的jsp文件都应该放在/WEB-INF/下 -->
    </bean>
    
    <!-- CommonsMultipartResolver 
        字符编码过滤器
    -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" 
            value="utf-8" />
    </bean>
    
    <!-- 注解驱动 -->
    <mvc:annotation-driven />
    
    
    
</beans>

spring-service.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:context="http://www.springframework.org/schema/context" 
    xmlns:jdbc="http://www.springframework.org/schema/jdbc"  
    xmlns:jee="http://www.springframework.org/schema/jee" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    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/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd">
    
    <!-- 组件扫描 -->
    <context:component-scan 
        base-package="serviceImpl" /> <!-- service所在的包路径 -->
    
    
</beans>

spring-dao.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:context="http://www.springframework.org/schema/context" 
    xmlns:jdbc="http://www.springframework.org/schema/jdbc"  
    xmlns:jee="http://www.springframework.org/schema/jee" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    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/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd">
    
    <!-- 读取db.properties
　　　　　　db.properties文件的内容在下面
 -->
    <util:properties id="dbconfig"
        location="classpath:db.properties" />
        
    <!-- 配置数据源 -->
    <bean id="dataSource" 
        class="org.apache.commons.dbcp.BasicDataSource">
        <property name="url" 
            value="#{dbconfig.url}" />
        <property name="driverClassName" 
            value="#{dbconfig.driver}" />
        <property name="username" 
            value="#{dbconfig.username}" />
        <property name="password" 
            value="#{dbconfig.password}" />
        <property name="initialSize" 
            value="#{dbconfig.initialSize}" />
        <property name="maxActive" 
            value="#{dbconfig.maxActive}" />
    </bean>
    
    <!-- SqlSessionFactoryBean -->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 指定数据源，值为以上配置的数据源 -->
        <property name="dataSource"
            ref="dataSource" />
        <!-- 指定XML映射文件的位置 -->
        <property name="mapperLocations"
            value="classpath:mappers/*.xml" />
    </bean>
    
    <!-- MapperScannerConfigurer -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 指定接口文件的位置 -->
        <property name="basePackage"
            value="mapper" />
    </bean>
    
</beans>

db.properties

url=jdbc:mysql://localhost:3306/EPOS?useUnicode=true&characterEncoding=utf8 #数据库的路径
driver=com.mysql.jdbc.Driver #驱动
username=root #数据库登陆用户名
password=root #密码
initialSize=2 #初始连接数
maxActive=10 #最大连接数

经过如上配置，这个应用的基本配置就完成了，然后就可以根据配置的位置去写你的代码了！

============================================================分割线==================================================================

新人第一次写博客，回头一看写的很烂，但人都要有第一次嘛，以后会越来越好的，加油！！！

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