一、SpringMVC 开发环境搭建
1、创建项目 permission
2、引入 pom.xml 依赖,并使用properties管理 version 版本
<properties>
<springframework.version>4.3.10.RELEASE</springframework.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- mysql dependencies start -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.41</version>
<!--<version>8.0.13</version>-->
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!--引入spring的bean:-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${springframework.version}</version>
</dependency>
<!--由于是使用springmvc:所以要springmvc的配置-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${springframework.version}</version>
</dependency>
<!--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>1.2.3</version>
</dependency>
<!--druid-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.20</version>
</dependency>
<!--lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.12</version>
</dependency>
<!--jackson-->
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-guava</artifactId>
<version>2.5.3</version>
</dependency>
<!--logback-->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.8</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.8</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.22</version>
</dependency>
</dependencies>
二、环境配置:
1、配置web.xml
配合Spring beans 配置文件路径:
<!-- Spring beans 配置文件所在目录 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
配置前端控制器:
默认指向 WEB-INF下的spring-servlet.xml文件
<!-- spring mvc 配置 -->
<servlet>
<servlet-name>spring</servlet-name> //默认指向 spring-servlet.xml文件
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
配置字符集,解决乱码问题:
<!-- 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>
2、SpringMVC 配置文件: spring-servlet.xml
引入springmvc 上下文注解配置及包扫描controller、service两个目录,并配置前端解析器
<context:annotation-config />
<!-- 启动注解驱动的spring mvc 功能 -->
<mvc:annotation-driven/>
<!-- 启动包扫描功能 -->
<context:component-scan base-package="com.webcode.springboot.controller" />
<context:component-scan base-package="com.webcode.springboot.service" />
<bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />
<bean id="jsonView" class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
<!--前端解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
3、配置 applicationContext.xml
配置DB数据库连接参数及Druid相关参数
<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>
<!--<import resource="redis.xml" />-->
<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>
配置对应连接数据库参数文件:settings.xml
DB相关参数:
db.driverClassName=com.mysql.cj.jdbc.Driver
db.url=jdbc:mysql://localhost:3333/test?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true&serverTimezone=UTC
db.username=root
db.password=admin
4、配置 mybatis-config.xml
applicationContext.xml 添加sqlSessionFactory配置:
<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>
<!-- Mybatis包扫描定义: 用于读取持久层 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.webcode.springboot.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>
mybatis-config.xml 配置:关闭缓存等
<settings>
<setting name="safeRowBoundsEnabled" value="true"/>
<setting name="cacheEnabled" value="false" />
<setting name="useGeneratedKeys" value="true" />
</settings>
5、事务管理配置: applicationContext.xml
事务管理器:
<!-- tx -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
监控DB:
<!-- druid -->
<bean id="stat-filter" class="com.alibaba.druid.filter.stat.StatFilter">
<property name="slowSqlMillis" value="3000" />
<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>
6、配置 druid ,添加相关配置,实现 druid 进行登录认证:
<!-- druid -->
<servlet>
<servlet-name>DruidStatServlet</servlet-name>
<servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
<init-param>
<param-name>loginUsername</param-name><!--登录名-->
<param-value>druid</param-value>
</init-param>
<init-param>
<param-name>loginPassword</param-name><!--登录密码-->
<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>exclusions</param-name>
<param-value>*.js,*.css,*.jpg,*.png,*.ico,*.gif,/sys/druid/*</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>DruidWebStatFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
源码查看:
7、配置 logback.xml 日志管理
<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>
//日志级别
<!-- TRACE < DEBUG < INFO < WARN < ERROR -->
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
三、SpringMVC开发环境验证:
1、创建接口: TestController
@Controller
@RequestMapping("/test")
@Slf4j
public class TestController { @RequestMapping("/hello") @ResponseBody public String hello(){ // log.info("hello"); System.out.println("dddddddd"); return "hello,permission"; } }
2、tomcat 服务配置:
3、启动tomcat服务器,测试接口: