曾几何时,搭过无数遍的SSM整合框架,遇到了springboot之后我是真的厌烦了,不过我还是再搭建了一遍。
1. 创建maven工程
不再赘述。
2. 引入依赖
关于spring,我们要管理bean,获取spring容器,那么spring-beans和spring-context是必不可的:
<properties>
<springframework.version>4.3.10.RELEASE</springframework.version>
</properties>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springframework.version}</version>
</dependency>
要用springMVC:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework.version}</version>
</dependency>
jdbc驱动:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${springframework.version}</version>
</dependency>
用mybatis来管理sql:
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.0</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
连接池也必不可少:
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.20</version>
</dependency>
mysql数据库:
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.30</version>
</dependency>
lombok神器,怎么能不用?
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.12</version>
</dependency>
在json处理上,jackson用的比较多,fastJson有bug?
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-guava</artifactId>
<version>2.5.3</version>
</dependency>
日志处理,用最好用的logback:速度快、更丰富的文档、配置文件热加载、自动压缩日志文件等。比log4j好。
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.9</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.9</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.5</version>
</dependency>
3. web.xml
这里是入口:spring的上下文监听器、加载applicationContext.xml,这是spring的核心配置。还要配置springMVC的前端控制器DispatcherServlet;要配置编码;以及druid的配置。
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--spring bean 配置文件所在目录-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!--spring mvc配置-->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--/可以匹配到/login,但是匹配不到/login.jsp-->
<!--encoding-->
<filter>
<filter-name>encodingFilter</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!--druid-->
<servlet>
<servlet-name>DruidStatServlet</servlet-name>
<servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
<init-param>
<param-name>loginUsername</param-name>
<param-value>druid</param-value>
</init-param>
<init-param>
<param-name>loginPassword</param-name>
<param-value>druid</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>DruidStatServlet</servlet-name>
<url-pattern>/sys/druid/*</url-pattern>
</servlet-mapping>
<filter>
<filter-name>DruidWebStatFilter</filter-name>
<filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>
<init-param>
<param-name>exlusions</param-name>
<param-value>*.js,*.css,*.jpg,*.png,*.ico,*.gof,/sys/druid/*</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>DruidWebStatFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
4. applicationContext.xml
这个就是spring的核心配置,在容器启动的时候就要进行加载。
这里主要是配置数据源dataSource,sqlSessionFactory以及事务transactionManager。
<?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: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/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="ignoreUnresolvablePlaceholders" value="true"/>
<property name="locations">
<list>
<value>classpath:settings.properties</value>
</list>
</property>
</bean>
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<property name="driverClassName" value="${db.driverClassName}"/>
<property name="url" value="${db.url}"/>
<property name="username" value="${db.username}"/>
<property name="password" value="${db.password}"/>
<property name="initialSize" value="3"/>
<property name="minIdle" value="3"/>
<property name="maxActive" value="20"/>
<property name="maxWait" value="60000"/>
<property name="filters" value="stat,wall"/>
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis-config.xml"/>
<property name="dataSource" ref="dataSource"/>
<property name="mapperLocations" value="classpath:mapper/*.xml"/>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.njupt.dao"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--tx-->
<tx:annotation-driven transaction-manager="transactionManager" />
<!--druid-->
<bean id="stat-filter" class="com.alibaba.druid.filter.stat.StatFilter">
<property name="slowSqlMillis" value="3000"/><!--超过3秒说明是慢sql-->
<property name="logSlowSql" value="true"/>
<property name="mergeSql" value="true"/>
</bean>
<bean id="wall-filter" class="com.alibaba.druid.wall.WallFilter">
<property name="dbType" value="mysql"/>
</bean>
</beans>
5. 数据源配置文件settings.properties
db.driverClassName=com.mysql.jdbc.Driver
db.url=jdbc:mysql://127.0.0.1:3306/jimin?characterEncoding=utf-8
db.username=root
db.password=123456
6. mybatis-config.xml
这里可以对mybatis本身默认的一些设置进行修改。也可以不写。
<?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>
<settings>
<setting name="safeRowBoundsEnabled" value="true"/>
<setting name="cacheEnabled" value="false"/>
<setting name="useGeneratedKeys" value="true"/>
</settings>
</configuration>
7. spring-servlet.xml
这里主要是配置SpringMVC:
<?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:contect="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/sche ma/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--springmvc的bean就可以被管理了-->
<contect:annotation-config />
<!--启动注解驱动springmvc-->
<mvc:annotation-driven />
<!--包扫描-->
<contect:component-scan base-package="com.njupt.controller"/>
<!--确定返回格式-->
<bean class="org.springframework.web.servlet.view.BeanNameViewResolver"/>
<!--返回json的时候处理-->
<bean id="jsonView" class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"/>
<!--返回jsp的时候处理-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
8. logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="60 seconds">
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</encoder>
</appender>
<!-- <appender name="permission" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${catalina.home}/logs/permission.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBaseRollingPolicy">
<FileNamePattern>${catalina.home}/logs/permission.%d{yyyy-MM-dd}.log.gz</FileNamePattern>
</rollingPolicy>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d{yyyy-MM-dd HH-mm-ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</layout>
</appender>-->
<!--<logger name>-->
<!--</logger>-->
<!--TRACE < DEBUG < INFO < WARN < ERROR-->
<root level="INFO">
<appender-ref ref="STDOUT"/>
</root>
</configuration>
觉得头大???http://www.imooc.com/article/19005
9. 启动测试
在controller中:
@Controller
@RequestMapping("/test")
@Slf4j
public class TestController {
@RequestMapping("/hello")
@ResponseBody
public String hello(){
log.info("hello");
return "hello";
}
}
在dao中要假装写一个类:TestDao,里面烧都不写。
在mapper目录下写一个TestMapper.xml,来防止报错。
<?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.njupt.dao.TestDao" >
</mapper>
配置环境,然后启动。