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Spring mvc+ maven + MyBatis + Oracle + IDEA 项目搭建 - framework 进阶中（一）

2024-09-24 04:26:46   215人阅读

原文链接 http://blog.csdn.net/qq184377902/article/details/51493642 结合自身情况加以修改搭建的框架，记录以防备忘，方便日后学习参考。

Before building the project framework  ...

项目环境

IntelliJ IDEA 2016.1.2、JDK 1.8.0_31、Apache-maven-3.5.0、Tomcat-9.0.0.M11

Maven项目搭建

自行百度 ..

Build project framework ...

  • SSM框架即为Spring、Spring MVC、Mybatis。创建后的项目结构图即为下图。
  • 技术分享
  • - spring-mybatis.xml：整合spring与mybatis，并实现spring基本功能。
    - spring-mvc.xml：配置使用spring-mvc。
    - jdbc.propertis:资源文件，用来保存数据库相关信息。
    - log4j.properties:配置日志文件。(配置文件及资源文件可先自行新建，后续修改)

1.项目pom.xml文件

<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>com.xiaonan.framework</groupId>
    <artifactId>maven-ssm-demo</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>maven-ssm-demo Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!-- spring版本号 -->
        <spring.version>4.2.6.RELEASE</spring.version>
        <!-- mybatis版本号 -->
        <mybatis.version>3.4.0</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>
        <!--jackson版本号-->
        <jackson.version>2.7.1</jackson.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <!-- 表示开发的时候引入，发布的时候不会加载此包 -->
            <!--<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>1.3.0</version>
        </dependency>

        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4</version>
        </dependency>

        <!-- Oracle驱动包 -->
        <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc6</artifactId>
            <version>11.2.0.1.0</version>
        </dependency>

        <!-- dbcp，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>

        <!-- JSTL标签类 -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</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>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>${jackson.version}</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>maven-ssm-demo</finalName>
    </build>
</project>

2.spring-mvc.xml

(第一句扫描注解，扫描出的注解对象都依赖注入到了Spring MVC容器中，这时不可再次扫描Service，不然事务不能用了，所以扫描时将Service除去，这时必须扫描Controller，不然服务会出404错误。)

<?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-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">
    <!-- 自动扫描该包，使用SpringMVC认为包下用了@Controller注解的类是控制器,避免扫描@Service导致事务不能使用 -->
    <context:component-scan base-package = "com.xiaonan.project">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service"/>
    </context:component-scan>

    <!--避免IE执行AJAX时，返回JSON出现下载文件 -->
    <bean id = "mappingJacksonHttpMessageConverter"
          class = "org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
        <property name = "supportedMediaTypes">
            <list>
                <value>text/html;charset=UTF-8</value>
            </list>
        </property>
    </bean>

    <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="order" value="1"/>
        <property name="defaultViews">
            <list>
                <!-- JSON View -->
                <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView">
                </bean>
            </list>
        </property>
    </bean>


    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
        <property name="prefix" value="/page/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- 添加后可以显示welcome-file界面 -->
    <mvc:default-servlet-handler/>

    <!-- 启动注解 -->
    <mvc:annotation-driven />
</beans>

3.spring-mybatis.xml

(第一句自动扫描是为了扫描包中的注解，然后进行依赖注入，这时所有扫描的注解对象都在Spring容器中。配置数据源，整合使用Mybatis)

<?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-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/tx
                        http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!-- 自动扫描 -->
    <context:component-scan base-package="com.xiaonan.project">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 引入数据库配置文件 -->
    <bean id = "propertyConfigurer"
          class = "org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">
        <property name = "location" value="classpath:properties/jdbc.properties" />
    </bean>
    <!-- 连接池 -->
    <bean id = "dataSource" class = "org.apache.commons.dbcp.BasicDataSource"
          destroy-method = "close">
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <!-- 初始化连接大小 -->
        <property name="initialSize" value="${jdbc.initialSize}" />
        <!-- 连接池最大数量 -->
        <property name="maxActive" value="${jdbc.maxActive}"/>
        <!-- 连接池最大空闲 -->
        <property name="maxIdle" value="${jdbc.maxIdle}" />
        <!-- 连接池最小空闲 -->
        <property name="minIdle" value="${jdbc.minIdle}" />
        <!-- 获取连接最大等待时间 -->
        <property name="maxWait" value="${jdbc.maxWait}" />
    </bean>

    <!-- 结合Spring和Mybatis -->
    <bean id = "sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 自动扫描mapping.xml文件 -->
        <property name = "mapperLocations" value="classpath:mapper/*Mapper.xml" />
    </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.xiaonan.project.mapper" />
        <property name = "sqlSessionFactoryBeanName" value = "sqlSessionFactory" />
    </bean>

    <!-- 定义事务 -->
    <bean id = "transactionManager"
          class = "org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name = "dataSource" ref = "dataSource" />
    </bean>
    <!-- 使用注解定义事务 -->
    <tx:annotation-driven transaction-manager = "transactionManager" />
</beans>

4.jdbc.properties

(设置好一些基本属性，可以直接在spring-mybatis.xml中使用${属性名}访问)

## oracle 定义
jdbc.driver=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@127.0.0.1:1521:orcl
jdbc.username=bms
jdbc.password=bms
#定义初始连接数
jdbc.initialSize=0
#定义最大连接数
jdbc.maxActive=100
#定义最大空闲
jdbc.maxIdle=20
#定义最小空闲
jdbc.minIdle=1
#定义最长等待时间
jdbc.maxWait=60000

5.log4j.properties

#定义LOG输出级别
log4j.rootLogger=INFO,Console,File
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活地指定日志输出格式，下面一行是指定具体的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n

#文件大小到达指定尺寸的时候产生一个新的文件
log4j.appender.File = org.apache.log4j.RollingFileAppender
#指定输出目录
log4j.appender.File.File = logs/ssm.log
#定义文件最大大小
log4j.appender.File.MaxFileSize = 10MB
# 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

6.web.xml

(初始化加载spring-mybatis.xml文件。ContextLoaderListener监听器的作用就是启动Web容器时自动装配ApplicationContext的配置信息。若无该语句，就无法依赖注入注解标注产生的对象)

<?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>Archetype Created Web Application</display-name>
  <!-- Spring和Mybatis的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:application/spring-mybatis.xml</param-value>
  </context-param>

  <!-- 编码过滤器 -->
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <async-supported>true</async-supported>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!-- Spring监听器 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 防止Spring内存溢出监听器 -->
  <listener>
    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
  </listener>

  <!-- Spring MVC servlet -->
  <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:application/spring-mvc.xml</param-value>
    </init-param>
    <!-- 容器在启动时就加载这个servlet -->
    <load-on-startup>1</load-on-startup>
    <async-supported>true</async-supported>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!-- 设置默认首页 -->
  <welcome-file-list>
    <welcome-file>/index.jsp</welcome-file>
  </welcome-file-list>

</web-app>

Project code ...

TestController.java
  • 最前方加上Controller注解。
  • controller：控制文件，所有请求都是传入到此文件夹中的类里。
  • @Autowired @Qualifier("testService")：依赖注入Service服务对象，使用Qualifier注解是指定具体服务，不然会进行默认匹配。
  • @ResponseBody：让返回值为JSON，但是pojo对象必须实现了getter和setter方法，不然会出现转换失败的错误。
package com.xiaonan.project.controller;
import com.xiaonan.project.model.Test;
import com.xiaonan.project.service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
/**
 * 测试
 */
@Controller
@RequestMapping("/test")
public class TestController {
    @Autowired
    @Qualifier("testService")
    private TestService testService;

    @RequestMapping(value = "/get", method = RequestMethod.GET)
    @ResponseBody
    public Test getTestById(@RequestParam("id") String id) {
        return testService.getById(Integer.parseInt(id));
    }
}

TestMapper.java
  • 方法的名字就是xml文件中的id值。
package com.xiaonan.project.mapper;
import com.xiaonan.project.model.Test;
public interface TestMapper {
    Test selectByPrimaryKey(Integer id);
}

Test.java
package com.xiaonan.project.model;
/**
 * 测试对象
        */
public class Test {
    private Integer id;
    private Integer test1;
    private String test2;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public Integer getTest1() {
        return test1;
    }
    public void setTest1(Integer test1) {
        this.test1 = test1;
    }
    public String getTest2() {
        return test2;
    }
    public void setTest2(String test2) {
        this.test2 = test2;
    }
}

TestService.java
package com.xiaonan.project.service;
import com.xiaonan.project.model.Test;
/**
 * 测试服务接口
 */
public interface TestService {
    Test getById(int id);
}

TestServiceImp.java
  • Service注解，扫描后就可以依赖注入对象到Controller。
package com.xiaonan.project.service.impl;
import com.xiaonan.project.mapper.TestMapper;
import com.xiaonan.project.model.Test;
import com.xiaonan.project.service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
 * 测试服务
 */
@Service("testService")
public class TestServiceImp implements TestService {
    //@Autowired(required = false)
    @Autowired
    private TestMapper testMapper;

    public Test getById(int id) {
        return testMapper.selectByPrimaryKey(id);
    }
}

TestMapper.xml
  • mapping：mybatis的sql语句存储的xml文件存储在这里。
  • mybatis的配置，更为具体的在mybatis官网中有详细介绍，需要手动配置sql语句，增加了灵活性，但是切换数据库就有一些麻烦。
    <?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.xiaonan.project.mapper.TestMapper">
    <resultMap id="BaseResultMap" type="com.xiaonan.project.model.Test">
        <id column="id" property="id" jdbcType="INTEGER" />
        <result column="test1" property="test1" jdbcType="INTEGER" />
        <result column="test2" property="test2" jdbcType="VARCHAR" />
    </resultMap>
    <sql id = "Base_Column_List">
        id, test1, test2
    </sql>
    <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer">
        SELECT
        <include refid="Base_Column_List" />
        FROM test
        WHERE id = #{id, jdbcType = INTEGER}
    </select>
</mapper>

     

  • 以上基本目录就创建成功了，运行tomcat，以上配置中并没有配置servlet-api.jar，需要手动依赖进本项目。

  • 在数据库中插入一条数据后，访问http://localhost:8080/myproject/test/get?id=1，返回JSON。技术分享

 

Spring mvc+ maven + MyBatis + Oracle + IDEA 项目搭建 - framework 进阶中（一）


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