在Eclipse中利用maven整合搭建ssm框架

2022-12-03 12:30:22

首先说明用到的框架： spring + springMVC + mybatis

构建工具：maven

开发工具：eclipse

开发环境：win10 java版本：jdk1.8 tomcat版本：tomcat8.0

一、创建web项目

先整体看下项目的目录结构

二、maven需要引入的jar包，pom.xml

 <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.cjk</groupId>

   <artifactId>ssm</artifactId>

   <packaging>war</packaging>

   <version>0.0.1-SNAPSHOT</version>

   <name>ssm 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>

     <!-- 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>

     <!-- 导入java ee jar包（可以去除index.jsp报错） -->

     <dependency>

         <groupId>javax</groupId>

         <artifactId>javaee-api</artifactId>

         <version>7.0</version>

     </dependency>

     <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>1.2.2</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>

     <!-- 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>org.codehaus.jackson</groupId>

         <artifactId>jackson-mapper-asl</artifactId>

         <version>1.9.13</version>

     </dependency>

     <!-- 上传组件包 -->

     <dependency>

         <groupId>commons-fileupload</groupId>

         <artifactId>commons-fileupload</artifactId>

         <version>1.3.1</version>

     </dependency>

     <dependency>

         <groupId>commons-io</groupId>

         <artifactId>commons-io</artifactId>

         <version>2.4</version>

     </dependency>

     <dependency>

         <groupId>commons-codec</groupId>

         <artifactId>commons-codec</artifactId>

         <version>1.9</version>

     </dependency>

     <!-- 自动生成 -->

     <dependency>

         <groupId>org.mybatis.generator</groupId>

         <artifactId>mybatis-generator-core</artifactId>

         <version>1.3.6</version>

     </dependency>

   </dependencies>

   <build>

     <finalName>ssm</finalName>

     <plugins>

      <plugin>

         <groupId>org.apache.maven.plugins</groupId>

         <artifactId>maven-compiler-plugin</artifactId>

         <version>3.5.1</version>

         <configuration>

             <source>1.8</source>

             <target>1.8</target>

             <encoding>UTF-8</encoding>

         </configuration>

      </plugin>

   </plugins>

   </build>

 </project>

三、建立JDBC属性配置文件，jdbc.properties

#数据库驱动

driver=com.mysql.jdbc.Driver

#数据库连接

url=jdbc:mysql://localhost:3306/cjk_ssm?useUnicode=true&characterEncoding=UTF-8

#用户名

username=root

#用户密码

password=root

#定义初始连接数

initialSize=0

#定义最大连接数

maxActive=20

#定义最大空闲

maxIdle=20

#定义最小空闲

minIdle=1

#定义最长等待时间

maxWait=60000

四、log4j日志配置文件， 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/springmvcMybist/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

五、建立spring-mybatis.xml配置文件

这个文件就是用来完成spring和mybatis的整合的，包含spring和mybatis的配置，包括自动扫描，自动注入，配置数据库；

<?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:p="http://www.springframework.org/schema/p"

    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-4.0.xsd

                        http://www.springframework.org/schema/context

                        http://www.springframework.org/schema/context/spring-context-4.0.xsd

                        http://www.springframework.org/schema/mvc

                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!-- 自动扫描 -->

    <context:component-scan base-package="com.cjk" />

    <!-- 引入配置文件 -->

    <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" />

        <!-- 自动扫描mapping.xml文件 -->

        <property name="mapperLocations" value="classpath:com/cjk/mapping/*.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.cjk.dao" />

        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>

    </bean>

    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->

    <bean id="transactionManager"

        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="dataSource" />

    </bean>

</beans>

六、整合springMVC，spring-mvc.xml

　　上面已经完成了2大框架的整合，SpringMVC的配置文件单独放，然后在web.xml中配置整合，主要是自动扫描控制器，视图模式，注解的启动这三个

<?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:p="http://www.springframework.org/schema/p"
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-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>

<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>

<ref bean="mappingJacksonHttpMessageConverter" />
</list>
</property>
</bean>

<context:component-scan base-package="com.cjk.controller" />

<mvc:annotation-driven enable-matrix-variables="true" />

<mvc:default-servlet-handler />

<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>

<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

<property name="defaultEncoding" value="UTF-8" />

<property name="maxUploadSize" value="10485760000" />

<property name="maxInMemorySize" value="40960" />
</bean>
</beans>

七、配置web.xml

这里面是对spring-mybatis.xml的引入以及配置的spring-mvc的Servlet就是为了完成SSM整合，之前2框架整合不需要在此处进行任何配置。

<?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:spring-*.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:spring-mvc.xml</param-value>

        </init-param>

        <load-on-startup>1</load-on-startup>

        <async-supported>true</async-supported>

    </servlet>

    <servlet-mapping>

        <servlet-name>SpringMVC</servlet-name>

        <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->

        <url-pattern>/</url-pattern>

    </servlet-mapping>

    <welcome-file-list>

        <welcome-file>/index.html</welcome-file>

        <welcome-file>/index.jsp</welcome-file>

    </welcome-file-list>

</web-app>

到目前为止，所有的整合已经完成，配置文件也搞好了，接下来就利用mybatis来自动生成一些java代码：

首先，我们建立数据库：下面是建库建表的语句

CREATE DATABASE `cjk_ssm`

DROP TABLE IF EXISTS `user_t`;

CREATE TABLE `user_t` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `user_name` varchar(40) NOT NULL,

  `password` varchar(255) NOT NULL,

  `age` int(4) NOT NULL,

  PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

INSERT INTO `user_t` VALUES (1,'测试ssm','123',24);

1.利用MyBatis Generator自动创建代码

在桌面上建立一个文件夹（本文用到的文件夹不包含中文字符），然后在里面建个src文件夹，里面的东西如下图：

其中jar包是需要下载的，下面附上下载地址：

　　Mybatis-Generator的下载可以到这个地址：https://github.com/mybatis/generator/releases

　　Mysql-connector-java的下载可以到这个地址：https://dev.mysql.com/downloads/connector/j/

generatorConfig.xml需要手动配置，下面附上配置的内容信息：

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE generatorConfiguration

PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"

"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>

    <!-- 数据库驱动 -->

    <classPathEntry location="mysql-connector-java-5.1.45-bin.jar" />

    <context id="DB2Tables" targetRuntime="MyBatis3">

        <commentGenerator>

            <property name="suppressDate" value="true" />

            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->

            <property name="suppressAllComments" value="true" />

        </commentGenerator>

        <!--数据库链接URL，用户名、密码 -->

        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/cjk_ssm" userId="root" password="root">

        </jdbcConnection>

        <javaTypeResolver>

            <property name="forceBigDecimals" value="false" />

        </javaTypeResolver>

        <!-- 生成模型的包名和位置 -->

        <javaModelGenerator targetPackage="com.cjk.bean"

            targetProject="src">

            <property name="enableSubPackages" value="true" />

            <property name="trimStrings" value="true" />

        </javaModelGenerator>

        <!-- 生成映射文件的包名和位置 -->

        <sqlMapGenerator targetPackage="com.cjk.mapping"

            targetProject="src">

            <property name="enableSubPackages" value="true" />

        </sqlMapGenerator>

        <!-- 生成DAO的包名和位置 -->

        <javaClientGenerator type="XMLMAPPER"

            targetPackage="com.cjk.dao" targetProject="src">

            <property name="enableSubPackages" value="true" />

        </javaClientGenerator>

        <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名 -->

        <table tableName="user_t" domainObjectName="User"

            enableCountByExample="false" enableUpdateByExample="false"

            enableDeleteByExample="false" enableSelectByExample="false"

            selectByExampleQueryId="false"></table>

    </context>

</generatorConfiguration>

注：一般jar包下载下来的zip文件可直接用，但是我这儿出现了问题，所以我把两个下载下来的zip文件解压，然后把两个jar包提取出来；

　　还有就是下载的jar包的版本，如果不是上文师范的版本，下载之后在配置文件中修改；

　　需要修改的我用颜色标示出来了，可自行修改；

最后，打开cmd，进入该文件夹（也可以在这个文件夹中按住 shift + 右击，选择"在此处打开命令窗口"），复制粘贴以下代码+回车

Java -jar mybatis-generator-core-1.3.6.jar -configfile generatorConfig.xml -overwrite

完成后，到该文件夹下打开src,如下

然后复制进eclipse相应的文件夹中,

接着我们手动创建service

package com.cjk.service;

import com.cjk.bean.User;

public interface UserService {

     public User getUserById(int userId);

}

手动创建serviceImpl

package com.cjk.service.impl;

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

import org.springframework.stereotype.Service;

import com.cjk.bean.User;

import com.cjk.dao.UserMapper;

import com.cjk.service.UserService;

@Service("userService")

public class UserServiceImpl implements UserService{

    @Autowired

    private UserMapper userDao;

    @Override

    public User getUserById(int userId) {

        return this.userDao.selectByPrimaryKey(userId);

    }

}

手动创建jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>ssm测试</title>

</head>

<body>

    <h1>${user.userName}</h1>

</body>

</html>

手动创建controller

package com.cjk.controller;

import javax.servlet.http.HttpServletRequest;

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

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import com.cjk.bean.User;

import com.cjk.service.impl.UserServiceImpl;

@Controller

@RequestMapping(value = "/user")

public class UserController {

    @Autowired

    private UserServiceImpl userServiceImpl;

    @RequestMapping(value = "/test")

    public String Index(HttpServletRequest request, Model model){

        int userId = Integer.parseInt(request.getParameter("id"));

        User user = userServiceImpl.getUserById(userId);

        model.addAttribute("user",user);

         return "User";

    }

}

至此，所有的代码已经完成了，最后我们看看总体的项目结构