Java 企业级权限管理项目笔记（五） - - - SpringMVC 开发环境配置

一、SpringMVC 开发环境搭建

1、创建项目 permission

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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

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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：

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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：

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3、启动tomcat服务器，测试接口：

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https://github.com/wushaopei/Java_Permission_management