SSM框架搭建(一)--整合mybatis,druid,dubbo

妖狐艹你老母 2022-05-19 23:08 233阅读 0赞

强烈推荐一个大神的人工智能的教程：[http://www.captainbed.net/zhanghan][http_www.captainbed.net_zhanghan]

# <table>   <tbody>    <tr>     <td><font>建立maven工程</font></td>    </tr>   </tbody>  </table> #

!\[这里写图片描述\](https://img-blog.csdn.net/20180709111950576?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poMTU3MzI2MjE2Nzk=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70) 1.zh-plat为项目名称，其下分为api,service,web,其中api是打jar包,service是打war包,web是打war包 2.zh-root为管理jar的工程 3.zh-tool为项目中公共用到的工具类

# <table>   <tbody>    <tr>     <td><font>框架搭建</font></td>    </tr>   </tbody>  </table> #

本框架会使用druid连接池,整合mybatis,整合swagger,整合p6spy。 首先,只搭建一个只有spring的框架

\#\#1.添加jar包依赖

\#\#\#1.1 日志相关,分别添加到service层和web层

*  slf4j-api
 *  slf4j-log4j12
 *  log4j

\#\#\#1.2 web层相关依赖:

*  spring-web(提供@Controller注解) ,此处注意,spring-webmvc中已经依赖了spring-web,因此下方已经引入了spring-webmvc即可不单独添加spring-web的jar包依赖
 *  spring-context(提供@RequestMapping注解),同spring-web的jar依赖规则
 *  spring-webmvc,jackson-core,jackson-databind向页面返回json格式对象,可使用@responsebody注解,此处需要注意版本,我使用的spring版本是5.x版本,使用jackson版本较老时会报错,所以建议使用jackson的最新稳定版

\#\#\#1.3 service层相关依赖

*  junit 单元测试
 *  spring-web: 提供@component注解与@service注解
 *  spring-context: 提供ContextLoaderListener监听器,用来tomcat容器启动时自动加载contextConfigLocation指定的配置文件,如果没有指定,则会默认加载application.xml
 *  zh-plat-api的依赖,需要用到实体和facade接口  
    \#\#\#1.4 建立配置文件  
    \#\#\#\#1.4.1 web层  
    建立spring-mvc.xml,配置包扫描:

<?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:mvc="http://www.springframework.org/schema/mvc"
           xmlns:context="http://www.springframework.org/schema/context"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    
        <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
            <property name="ignoreUnresolvablePlaceholders" value="true"/>
            <property name="locations">
                <list>
                    <value>classpath:dubbo-server.properties</value>
                </list>
            </property>
        </bean>
        
        <mvc:annotation-driven/>
    
        
        <context:component-scan base-package="com.zh.ssm.plat.controller"/>

配置web.xml,容器启动时装载配置文件:

<?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_3_0.xsd"
             version="3.0">
        
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </context-param>
        
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        
        <servlet>
            <servlet-name>action</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>action</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    </web-app>

\#\#\#\#1.4.2 service层  
添加spring-context.xml,配置包扫描

在web.xml中配置监听器:

至此,整个架子就搭好了,剩下的就是需要什么往里边整合什么了。

# <table>   <tbody>    <tr>     <td><font>整合mybatis及druid</font></td>    </tr>   </tbody>  </table> #

主要是数据库相关的,因此这些配置都在service层进行: \#\#1.添加jar包依赖

*  mybatis相关
 *  jdbc相关
 *  mysql连接相关
 *  druid相关

<dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-tx</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
            </dependency>

\#\#2.在classpath下新建一个db.properties,用来配置数据库连接相关信息

driver=com.mysql.jdbc.Driver
    url=jdbc:mysql://127.0.0.1:3306/mybatis?serverTimezone=UTC
    username=root
    password=

\#\#3.配置数据库连接池,classpath下建立datasource.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"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
              destroy-method="close">
            <property name="filters" value="stat"/>
    
            <property name="url" value="${url}" />
            <property name="username" value="${username}" />
            <property name="password" value="${password}" />
    
            <property name="keepAlive" value="true"/>
            
            <property name="maxActive" value="20" />
            <property name="initialSize" value="1" />
            <property name="maxWait" value="60000" />
            <property name="minIdle" value="1" />
            <property name="timeBetweenEvictionRunsMillis" value="60000" />
            <property name="minEvictableIdleTimeMillis" value="300000" />
    
            <property name="testWhileIdle" value="true" />
            <property name="testOnBorrow" value="false" />
            <property name="testOnReturn" value="false" />
            <property name="poolPreparedStatements" value="true" />
            <property name="maxOpenPreparedStatements" value="20" />
            
            <property name="onFatalErrorMaxActive" value="1" />
        </bean>
    </beans>

\#\#3.配置mybatis相关项,在classpath下新建spring-mybatis.xml

\#\#4.在spring-context中添加配置PropertyPlaceholderConfigurer

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
            <property name="ignoreUnresolvablePlaceholders" value="true"/>
            <property name="locations">
                <list>
                    <value>classpath:db.properties</value>
                </list>
            </property>
        </bean>

在spring-context.xml中import mybatis的配置文件

# <table>   <tbody>    <tr>     <td><font>整合dubbo</font></td>    </tr>   </tbody>  </table> #

\#\#1.依赖jar包

*  dubbo
 *  curator-recipes dubbo客户端  
    在web和service的pom中添加依赖:

<dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-recipes</artifactId>
            </dependency>

\#\#2. service层配置  
service层是提供者,在service层的classpath下添加dubbo.xsd文件,这个文件的位置在dubbo源码中dubbo-config/dubbo-config-spring/src/main/resources/META-INF下  
在service层的classpath下添加dubbo-server.properties,用于配置dubbo相关参数配置

## local
    dubbo.registry.address=zookeeper://192.168.159.140:2181
    dubbo.plat.group=local
    dubbo.plat.version=1.0.0
    dubbo.registry.register=true

添加dubbo.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns="http://www.springframework.org/schema/beans"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
    					        http://www.springframework.org/schema/beans/spring-beans.xsd
    					        http://code.alibabatech.com/schema/dubbo
    			 		        http://code.alibabatech.com/schema/dubbo/dubbo.xsd
    			 		        ">
    
        
        <dubbo:application name="platService"/>
        <dubbo:protocol name="dubbo" port="20889"/>
    
        
        <dubbo:registry protocol="zookeeper" address="${dubbo.registry.address}" register="${dubbo.registry.register}"/>
        
        <dubbo:annotation package="com.zh.ssm.plat.facade"/>
        <dubbo:provider timeout="30000" group="${dubbo.plat.group}"/>
        <dubbo:consumer check="false" timeout="30000" group="${dubbo.plat.group}"/>
    
    </beans>

在spring-context.xml中PropertyPlaceholderConfigurer项中配置dubbo-server.properties的配置:

import dubbo的配置:

\#\#3.web层配置  
web层是消费者角色,添加spring-dubbo.xml,配置如下,其他配置同service层,包括dubbo.xsd和dubbo-server.properties的配置:

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
           xmlns="http://www.springframework.org/schema/beans"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    
            http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    
    
        
        <dubbo:application name="platweb"/>
        <dubbo:registry protocol="zookeeper" address="${dubbo.registry.address}"/>
        <dubbo:protocol name="dubbo" port="20881"/>
        <dubbo:consumer timeout="30000" group="${dubbo.plat.group}"/>
        <dubbo:annotation package="com.zh.ssm.plat.controller"/>
        
    
    </beans>

[http_www.captainbed.net_zhanghan]: http://www.captainbed.net/zhanghan