新建项目
选择Maven项目,选中JDK版本,勾选Create from archetype,模版选中webapp(注意有两个webapp,别选错了)
GroupId 是项目组织唯一的标识符,实际对应JAVA的包的结构,是main目录里java的目录结构
ArtifactId 是项目的唯一的标识符,实际对应项目的名称,就是项目根目录的名称
Version 项目版本号
选择Maven版本以及Maven配置文件(本人使用阿里的Maven源)
配置文件在$maven\conf\settings.xml中,在mirrors中添加下面配置,更换Maven源为阿里源
<mirror>
<id>nexus-aliyun</id>
<mirrorOf>*,!jeecg,!jeecg-snapshots,!mapr-releases</mirrorOf>
<name>Nexus aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>
<mirror>
<id>mapr-public</id>
<mirrorOf>mapr-releases</mirrorOf>
<name>mapr-releases</name>
<url>https://maven.aliyun.com/repository/mapr-public</url>
</mirror>
点Finish即可
右下角弹窗点击Enable Auto-Import(自动导包)
打开pom.xml文件,把下面部分放到<properties>中
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!--定义版本号 ${org.springframework.version}-->
<org.springframework.version>5.0.7.RELEASE</org.springframework.version>
<org.mybatis.version>3.4.6</org.mybatis.version>
</properties>
把下面部分放到<dependencies>中(其中部分为个人所用)
<dependencies>
<!-- poi支持 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.14</version>
</dependency>
<!-- poi-ooxml支持 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.14</version>
</dependency>
<!--单元测试-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!--lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.6</version>
</dependency>
<!-- servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<!--mysql驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
<!-- druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.14</version>
</dependency>
<!-- common-lang -->
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<!--spring-test-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
<scope>test</scope>
</dependency>
<!--spring-core-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-context-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-context-support-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-expression-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-jdbc-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-tx-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-web-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-aop-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!--spring-webmvc-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- aspectj -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.7.4</version>
</dependency>
<!--aspectj weaver-->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.7.4</version>
</dependency>
<!-- cglib -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>3.1</version>
</dependency>
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${org.mybatis.version}</version>
</dependency>
<!--mybatis-spring-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!-- jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.4</version>
</dependency>
<!--jackson-databind-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
<!--jackson-annotations-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.4</version>
</dependency>
<!--slf4j-api-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.6</version>
</dependency>
<!--slf4j-log4j12-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.6</version>
</dependency>
<!--log4j-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!--commons-fileupload-->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<!-- jstl -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- standard -->
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!--pagehelper-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>4.1.4</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>RELEASE</version>
<scope>compile</scope>
</dependency>
</dependencies>
在<build>中加入Mybatis的逆向工程,注意不要加到<pluginManagement>里面,否则Maven插件看不到mybatis-generator
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<verbose>true</verbose>
<overwrite>false</overwrite>
</configuration>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
</dependencies>
</plugin>
</plugins>
替换一下WEB-INF/web.xml配置内容
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0"
metadata-complete="false">
<absolute-ordering/>
<display-name>web</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!--配置前端控制器-->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!--加载的主配置文件-->
<param-value>classpath:spring/applicationContext.xml</param-value>
</init-param>
<!-- 项目启动就加载框架 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 编码过滤器 -->
<filter>
<filter-name>CharacterEncoding</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>CharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
创建工程目录
个人配置,根据个人需要修改,但是请参考MVC模型创建
右键java文件夹,选中Mark Directory as -> Sources Root
同理把resources设置为Resources Root
配置Tomcat,点击Add Configuration…
安装图中添加本地Tomcat
参考图中配置
启动一下项目看看是否能看到Hello World
配置Spring及SpringMVC,在resources文件下添加如下三个xml文件,xxx部分需要用自己的工程对应目录替代
applicationContext.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
">
<!--注解扫描-->
<context:component-scan base-package="com.xxx"/>
<!--导入mybatis-->
<import resource="classpath:spring/spring-db.xml"/>
<!--导入springMVC-->
<import resource="classpath:spring/spring-mvc.xml"/>
</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: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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
">
<!--开启注解-->
<mvc:annotation-driven />
<!--静态资源处理 -->
<mvc:default-servlet-handler/>
<!--视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp" />
</bean>
<!--文件上传配置-->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8"/>
<property name="maxUploadSize" value="20000000"/>
<property name="maxInMemorySize" value="40960"/>
</bean>
</beans>
spring-db.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
">
<!--spring-Mybatis整合-->
<!--加载数据库属性文件-->
<context:property-placeholder location="classpath:mybatis/db.properties"/>
<!--数据源 连接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close" >
<property name="driverClassName" value="${jdbc.driver}" />
<!--属性文件当中的名称不能和name名称一样-->
<property name="url" value="${xxx.url}" />
<property name="username" value="${xxx.username}" />
<property name="password" value="${xxx.password}" />
<!-- 配置初始化大小、最小、最大 -->
<property name="maxActive" value="${xxx.maxActive}" />
<property name="initialSize" value="${xxx.initialSize}" />
<property name="minIdle" value="${xxx.minIdle}" />
<!-- maxWait 获取连接等待超时的时间 -->
<property name="maxWait" value="600000" />
<!-- timeBetweenEvictionRunsMillis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" />
<!-- minEvictableIdleTimeMillis 一个连接在池中最小空闲的时间,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,常用select 'x'。如果validationQuery为null,testOnBorrow、testOnReturn、testWhileIdle都不会起作用。 -->
<property name="validationQuery" value="SELECT 1" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="testWhileIdle" value="true" />
</bean>
<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 数据源 -->
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 开启注解事务 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
<!-- Mybatis的工厂 -->
<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 核心配置文件的位置 -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
<!--配置mapper映射文件的路径-->
<property name="mapperLocations" value="classpath:mapper/*.xml"/>
</bean>
<!-- 配置Mapper接口扫描 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 配置Mapper扫描包 -->
<property name="basePackage" value="com.xxx.mapper" />
</bean>
</beans>
mybatis目录下创建数据库配置文件及核心配置文件
db.properties
注意mysql数据库8.x以上版本链接上要加时区 jdbc.url=jdbc:mysql://localhost:3306/demo?serverTimezone=UTC&characterEncoding=utf-8
jdbc.driver=com.mysql.jdbc.Driver
# 举个例子
db.url=jdbc:mysql://主机地址:端口号/数据库?characterEncoding=utf-8
db.username=用户名
db.password=密码
db.maxActive=100
db.initialSize=50
db.minIdle=8
逆向工程创建
generatorConfig.xml
<?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">
<!-- 配置生成器 -->
<generatorConfiguration>
<context id="mysql" defaultModelType="hierarchical"
targetRuntime="MyBatis3">
<!-- 自动识别数据库关键字,
默认false,如果设置为true,
根据SqlReservedWords中定义的关键字列表;
一般保留默认值,
遇到数据库关键字(Java关键字),
使用columnOverride覆盖 -->
<property name="autoDelimitKeywords" value="false" />
<!-- 生成的Java文件的编码 -->
<property name="javaFileEncoding" value="UTF-8" />
<!-- 格式化java代码 -->
<property name="javaFormatter"
value="org.mybatis.generator.api.dom.DefaultJavaFormatter" />
<!-- 格式化XML代码 -->
<property name="xmlFormatter"
value="org.mybatis.generator.api.dom.DefaultXmlFormatter" />
<!-- beginningDelimiter和endingDelimiter:指明数据库的用于标记数据库对象名的符号,
比如ORACLE就是双引号,MYSQL默认是`反引号; -->
<property name="beginningDelimiter" value="`" />
<property name="endingDelimiter" value="`" />
<!--阻止生成日期和注释-->
<commentGenerator>
<property name="suppressDate" value="true" />
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!-- 数据库连接信息 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://host:3306/demo?characterEncoding=utf-8"
userId="username"
password="password">
</jdbcConnection>
<!-- java类型处理器 用于处理数据库中的类型到Java中的类型,
默认使用JavaTypeResolverDefaultImpl;
注意一点,默认会先尝试使用Integer,Long,Short等来对应DECIMAL和
NUMERIC数据类型; -->
<javaTypeResolver
type="org.mybatis.generator.internal.types.JavaTypeResolverDefaultImpl">
<!-- true:使用BigDecimal对应DECIMAL和 NUMERIC数据类型 f
alse:默认, scale>0;length>18:使用BigDecimal;
scale=0;length[10,18]:使用Long; scale=0;length[5,9]:
使用Integer; scale=0;length<5:使用Short; -->
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!--
配置domain生成策略
targetProject:把自动生成的domian放在哪个工程里面
targetPackage:哪个包下
-->
<javaModelGenerator targetPackage="com.xxx.po"
targetProject="src/main/java">
<!-- for MyBatis3/MyBatis3Simple
自动为每一个生成的类创建一个构造方法,
构造方法包含了所有的field;而不是使用setter; -->
<property name="constructorBased" value="false" />
<!-- for MyBatis3 / MyBatis3Simple
是否创建一个不可变的类,如果为true,
那么MBG会创建一个没有setter方法的类,
取而代之的是类似constructorBased的类 -->
<property name="immutable" value="false" />
<!-- 设置是否在getter方法中,
对String类型字段调用trim()方法 -->
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!--
配置mapper.xml的生成策略
targetPackage:把自动生成的mapper放在哪个工程里面
targetProject:哪个包下
-->
<sqlMapGenerator targetPackage="mapper"
targetProject="src/main/resources">
<!-- 在targetPackage的基础上,
根据数据库的schema再生成一层package,
最终生成的类放在这个package下,默认为false -->
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!--
mapper接口生成策略
-->
<javaClientGenerator targetPackage="com.xxx.mapper"
type="XMLMAPPER" targetProject="src/main/java">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<!--需要生成的表-->
<table tableName="表名"></table>
</context>
</generatorConfiguration>
开始测试项目
正常应该每配置一步测试一下,本人懒,就一股脑全配置完了在测试o(∩_∩)o
首先测试mybatis
双击图中Maven插件,出现BUILD SUCCESS就说明Mybatis配置成功了
测试Spring和SpringMVC
index.jsp文件
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h2>Hello World!</h2>
<a href="http://localhost:8080/项目名/test">测试</a>
</body>
</html>
在controller下新建PageSkipController.java
package com.dev.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class PageSkipController {
@RequestMapping("/test")
public String statistics(){
return "test";
}
}
在WEB-INF/views下新建test.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h1>测试通过</h1>
</body>
</html>
重新启动项目,点击测试
成功跳转到test.jsp页面
至此成功搭建了SSM项目
其中可能碰到控制台乱码的情况
请参考文章 intellij idea控制台中文乱码问题解决 上面这种方法不能解决的话,用这种解决tomcat8.x.xx控制台中文乱码问题
刚开始写博客,很多地方写的不细致或有问题,欢迎指正。