利用maven/eclipse搭建ssm(spring+spring mvc+mybatis)

Java基础

浏览数:98

2019-8-15

AD:资源代下载服务

前言

  此种方式已过时,不再推荐,当下推荐方式:自我救赎 → 利用 IDEA 和 Spring Boot 搭建 SSM

  本文旨在利用maven搭建ssm环境,而关于maven的具体内容,大家可以去阅读《Maven 实战》。其实园内这方面文章已有不少,那么为什么我还要重复造轮子呢?我只是想记录自己的实践过程罢了,附带着给别人以参考。对于别人的博文,看了固然好,要是能付之实践,那就更好了!

  一直在对整个工程做一些配置上的优化,具体代码可以从我的github下载

  基于目前spring-boot的火热,工程慢慢往springboot上转,码云地址:https://gitee.com/youzhibing/spring-boot-2.0.3

maven搭建

  安装过程挺简单的,去apache下载apache-maven的zip包,解压到一个目录下,如下图

  接下来配置windows环境,右击我的电脑–》属性–》高级系统设置–》环境变量–》系统变量–》新建,如下图

  就是你解压的maven的home目录;接着编辑系统变量的Path,如图

  其实跟配置java环境是一样的,最后几个连续确定之后就好了,这几个确定一定要点,不然配置不会保存,更不会生效! home路径一定要写自己的,别搬我的呀!路径最好是拷贝,手动输入太容易出错了。

  接下来验证环境是否配置成功,打开命令行,输入mvn -v 如果出现下图的信息,那么恭喜你,配置成功了!当然,信息可能有些许出入,如版本不同等,这些不用在意。

Eclipse(java ee版)集成maven

  一般而言,新的eclipse都已经集成了maven,如果没有那么就安装,点击eclipse菜单栏Help->Eclipse Marketplace搜索关键字maven到插件Maven Integration for Eclipse 并点击安装即可,接下来将eclipse集成的maven换成我们自己的,而不用eclipse自带的,重新定位,点击Window -> Preference -> Maven -> Installation -> Add进行设置,如下图

  设置完成,那么eclipse配置maven就完成了,myeclipse配置和这个是一样的。

创建ssm项目

  选择建立Maven Project 选择File -> New -> Other,在New窗口中选择 Maven -> Maven Project;点击next,如下图

  选择项目路径,如下图,然后next

  

  选择项目类型 选择Artifact Id为maven-archetype-webapp那一项,如下图

  输入Group ID和 Artifact ID,以及Package,具体Group ID和 Artifact ID代表什么,可以去阅读《Maven 实战》,Group ID相当于一个组织,而Artifact ID相当于这个组织下的一个具体项目,Packege的话会根据你的Group ID和Artifact ID生成一个默认的名称,就用默认的就可以,如下图

  点finish之后,项目结构如下图

  若目录结构和上面的有差别,那么将perspective改成Java模式就好了。上面的目录结构离标准的maven web结构还有一点差别,少了一个文件夹src/test/resources,我们手动创建下,右键项目根目录点击New -> Source Folder,建出这个文件夹,如下图:

  Finish之后,项目结构图如下所示:

  把项目变成Dynamic Web项目右键项目,properties –》Project Facets,点击Convert to faceted fro,勾上Dynamic Web Module,并将Version为2.3。(3.0为Java7的)。

  设置部署程序集(Web Deployment Assembly)
        上面步骤设置完成后,点击OK,再右键项目,选择properties –》Deployment Assembly,如下图

  此处列表是,部署项目时,文件发布的路径。

        (1)我们删除test的两项,因为test是测试使用,并不需要部署。

        (2)设置将Maven的jar包发布到lib下。

        Add -> JavaBuild Path Entries -> Maven Dependencies -> Finish

        设置完成效果图

构建框架

  在pom.xml中添加所需要的jar包,内容如下图


<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.lee.mvnbook</groupId>
    <artifactId>maven-ssm-web</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>maven-ssm-web Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <properties>
        <!-- spring版本号 -->
        <spring.version>4.0.2.RELEASE</spring.version>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
    <dependencies>
        <!-- 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>
        <!-- 添加MyBatis依赖 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.3.0</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>
        <!-- 阿里巴巴的数据库连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.26</version>
        </dependency>
        <!-- spring结成mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.3</version>
        </dependency>
        <!-- jsp标准标签库 -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.16</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-nop</artifactId>
            <version>1.6.4</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.7</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <finalName>maven-ssm-web</finalName>
    </build>
</project>

  如果依赖不知道怎么写,比如groupId、artifactId、version不知道填什么,那么直接上http://search.maven.org/搜,对应着填写就可以了,如下图

  保存pom.xml,maven就会帮我们下载我们配置的所有jar包了,jar包依赖的jar包也会自动下载,是不是很方便!当然,这个下载可能需要较长的时间,不要急,当eclipse右下角的百分比进度没有了,就下载好了。jar包下载完成后,项目结构图如下

  配置文件

  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_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>SSM configuration</display-name>
    <!-- 解决工程编码过滤器 -->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    <!-- 配置文件所在位置 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring.xml,classpath:mybatis-spring.xml</param-value>
    </context-param>
    <!-- Spring配置(监听器) -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    
    <!-- SpringMVC配置 -->
    <servlet>
        <servlet-name>springDispatcherServlet</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>
    </servlet>
    <servlet-mapping>
        <servlet-name>springDispatcherServlet</servlet-name>
        <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>

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

    <!-- 自动注入 -->
    <context:component-scan base-package="com.huawei.service.impl" />
    <!-- 加载properties文件  -->
    <!--  <bean id="configProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath:mysqldb.properties</value>
            </list>
        </property>
    </bean> -->
</beans>

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

    <!-- 配置数据源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <!-- 基本属性 url、user、password -->  
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />  
        <property name="url" value="jdbc:mysql://192.168.1.100:3306/mybatis" />  
        <property name="username" value="root" />  
        <property name="password" value="root" />  
        <property name="initialSize" value="1" />  
        <property name="minIdle" value="1" />   
        <property name="maxActive" value="20" />  
        <property name="maxWait" value="60000" />
        <!-- 超过时间限制是否回收 -->
        <property name="removeAbandoned" value="true" />
        <!-- 超过时间限制多长; -->
        <property name="removeAbandonedTimeout" value="180" />
        <!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000" />
        <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="300000" />
        <!-- 用来检测连接是否有效的sql,要求是一个查询语句-->
        <property name="validationQuery" value="SELECT 1" />
        <!-- 申请连接的时候检测 -->
        <property name="testWhileIdle" value="true" />
        <!-- 申请连接时执行validationQuery检测连接是否有效,配置为true会降低性能 -->
        <property name="testOnBorrow" value="false" />
        <!-- 归还连接时执行validationQuery检测连接是否有效,配置为true会降低性能  -->
        <property name="testOnReturn" value="false" />
    </bean>

    <!-- Mybatis文件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis-config.xml" /> 
        <property name="dataSource" ref="dataSource" />
        <!-- 映射文件路径 -->
        <!--  <property name="mapperLocations" value="com/huawei/mapping/*.xml" />-->
    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.huawei.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

    <!-- 事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    
    <tx:annotation-driven transaction-manager="transactionManager" />
</beans>

  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: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-3.0.xsd  
     http://www.springframework.org/schema/context  
     http://www.springframework.org/schema/context/spring-context-3.0.xsd  
     http://www.springframework.org/schema/mvc  
     http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
     ">

    <!-- 启用spring mvc 注解 -->
    <context:annotation-config />
    
    <!-- 设置使用注解的类所在的jar包 -->
    <context:component-scan base-package="com.huawei.controller" />

    <!-- 完成请求和注解POJO的映射 -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

    <!-- 对转向页面的路径解析。prefix:前缀, suffix:后缀 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
        p:prefix="/" p:suffix=".jsp" />

</beans>

   mybatis-config.xml


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration  
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"  
  "http://mybatis.org/dtd/mybatis-3-config.dtd">  
      
<configuration>  
    <!-- 全局别名设置,在映射文件中只需写别名,而不必写出整个类路径  -->  
    <typeAliases>    
         <typeAlias type="com.huawei.model.Person" alias="Person"/>  
    </typeAliases>     
      <mappers>  
        <mapper resource="com/huawei/mapping/PersonMapper.xml" />  
    </mappers>
</configuration> 

  log4j.properties


log4j.rootLogger=DEBUG, stdout
log4j.logger.org.mybatis=DEBUG
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p %d %C: %m%n

  mysqldb.properties


jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.1.100:3306/mybatis
jdbc.username=root
jdbc.password=root
jdbc.initialSize=1
jdbc.minIdle=1
jdbc.maxActive=20
jdbc.maxWait=60000
jdbc.removeAbandoned=true
jdbc.removeAbandonedTimeout=180
jdbc.timeBetweenEvictionRunsMillis=60000
jdbc.minEvictableIdleTimeMillis=300000
jdbc.validationQuery=SELECT 1
jdbc.testWhileIdle=true
jdbc.testOnBorrow=false
jdbc.testOnReturn=false

   项目结构图如下

  java文件与jsp文件

  PersonController.java


package com.huawei.controller;

import java.util.List;

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.huawei.model.Person;
import com.huawei.service.IPersonService;

@Controller
@RequestMapping("/personController")
public class PersonController {
    
    private IPersonService personService;
    
    public IPersonService getPersonService() {
        return personService;
    }

    @Autowired
    public void setPersonService(IPersonService personService) {
        this.personService = personService;
    }

    @RequestMapping("/showPerson")
    public String showPersons(Model model){
        List<Person> persons = personService.loadPersons();
        model.addAttribute("persons", persons);
        return "showperson";
    }
}

  PersonMapper.java


package com.huawei.dao;

import java.util.List;

import com.huawei.model.Person;

public interface PersonMapper {
    /**
     * 插入一条记录
     * @param person
     */
    void insert(Person person);
    
    /**
     * 查询所有
     * @return
     */
    List<Person> queryAll();
}

  PersonMapper.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.huawei.dao.PersonMapper">
    <!-- 查询所有person -->  
    <select id="queryAll" resultType="Person" >  
        select * from person  
    </select>
</mapper>

  Person.java


package com.huawei.model;

/**
 * person 实体
 * @author Administrator
 *
 */
public class Person {

    private int id;
    private String name;
    private int age;
    
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    
    @Override
    public String toString() {
        return "Person [id=" + id + ", name=" + name + "]";
    }
}

  IPersonService.java


package com.huawei.service;

import java.util.List;

import com.huawei.model.Person;

public interface IPersonService {

    /**
     * 加载全部的person
     * @return
     */
    List<Person> loadPersons();
}

  PersonServiceImpl.java


package com.huawei.service.impl;

import java.util.List;

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

import com.huawei.dao.PersonMapper;
import com.huawei.model.Person;
import com.huawei.service.IPersonService;

@Service("personService")
public class PersonServiceImpl implements IPersonService {
    
    private PersonMapper personMapper;

    public PersonMapper getPersonMapper() {
        return personMapper;
    }
    @Autowired
    public void setPersonMapper(PersonMapper personMapper) {
        this.personMapper = personMapper;
    }

    @Override
    public List<Person> loadPersons() {
        return personMapper.queryAll();
    }
    
}

  showperson.jsp


<%@ page language="java" contentType="text/html; charset=utf-8"
     pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
 <!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=ISO-8859-1">
        <title>person list</title>
    </head>
    <body>
        <table>
            <tr>
                <th>姓名</th>
                <th>年龄</th>
            </tr>
            <c:forEach items="${persons}" var="person">
                <tr>
                    <td>${person.name }</td>
                    <td>${person.age }</td>
                </tr>
            </c:forEach>
        </table>
    </body>
</html>

mysql数据库表

最终效果

  

  那么恭喜你,也恭喜我,搭建ssm成功了!

后话

  用心的小伙伴应该发现了,前面的windows配置maven和我们用eclipse搭建ssm没有一点关系,确实和ssm搭建没有什么卵关系,我写出来是为什么了,就是有时候我们不用IDE工具,而在dos命令下利用maven搭建我们的项目的时候,那么windows配置maven就需用到了!

  搭建过程中如果有什么问题,可以试着在评论区找答案,或者在关于利用maven搭建ssm的博客,我们一起来探讨下问的最多的问题中找答案

作者:youzhibing2904