為什么80%的碼農都做不了架構師？>>> ??

前言

???????? 最近比較閑，復習搭建一下項目，這次主要使用Spring+SpringMVC+Mybatis。項目持久層使用Mybatis3，控制層使用SpringMVC4.1，使用Spring4.1管理控制器，數據庫連接池使用druid數據源，該項數據庫暫使用MySQL。

1、 數據庫表結構以及maven項目結構

???????? 數據表非常的簡單（不是重點），如下：

???? ? ??

?????? 創建maven項目創建Maven Project時，將Filter選擇為org.apache.maven.archetypes。填寫完相關項目坐標信息后項目結構如下：

?? ? ???

???? 注：若無src/main/java，src/test/java，src/test/resources時，創建這個幾個Source Folder。

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?2、修改pom.xml添加對應的包依賴

???? 這兒將全部使用的Maven依賴貼出了，對應什么作用上面都有解釋，如下：

???? pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"><modelVersion>4.0.0</modelVersion><groupId>org.andy.sm</groupId><artifactId>springmvc_mybatis_demo</artifactId><packaging>war</packaging><version>0.0.1-SNAPSHOT</version><name>springmvc_mybatis_demo Maven Webapp</name><url>http://maven.apache.org</url><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><spring.version>4.1.4.RELEASE</spring.version><jackson.version>2.5.0</jackson.version></properties><dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency><!-- spring --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>${spring.version}</version><scope>test</scope></dependency><!-- mybatis 包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.2.8</version></dependency><!--mybatis spring 插件 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.2</version></dependency><!-- mysql連接 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.34</version></dependency><!-- 數據源 --><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.12</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.4</version></dependency><!-- log4j --><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency><!-- servlet --><dependency><groupId>javax.servlet</groupId><artifactId>servlet-api</artifactId><version>3.0-alpha-1</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!-- json --><dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.9.13</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.3</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><!-- 文件上傳 --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2.2</version></dependency></dependencies><build><finalName>springmvc_mybatis_demo</finalName><plugins><!-- Run the JUnit unit tests in an isolated classloader --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-plugin</artifactId><version>2.4.2</version><configuration><skipTests>true</skipTests></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-war-plugin</artifactId><version>2.3</version><configuration><webXml>src/main/webapp/WEB-INF/web.xml</webXml></configuration></plugin><!-- generate java doc --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-javadoc-plugin</artifactId><version>2.9.1</version><configuration><javadocDirectory>target/javadoc</javadocDirectory><reportOutputDirectory>target/javadoc</reportOutputDirectory><charset>UTF-8</charset><encoding>UTF-8</encoding><docencoding>UTF-8</docencoding><show>private</show></configuration></plugin><!-- 部署至本機 --><plugin><groupId>org.codehaus.cargo</groupId><artifactId>cargo-maven2-plugin</artifactId><version>1.0</version><configuration><container><containerId>tomcat6x</containerId><home>D:\WebServer\apache-tomcat-6.0.39</home></container><configuration><type>existing</type><home>D:\WebServer\apache-tomcat-6.0.39</home></configuration></configuration></plugin></plugins></build> </project>

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3、使用Generator自動生成Mybatis相關表信息

????? 自動生成表的Model，Mapping，Dao文件

并將其導入到項目的src/main/java包中。

????? 其中生成的Model中UserInfo如下：

UserInfo.java（其中List<CourseInfo> courseInfos手動添加的）

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package org.andy.shop.model;import java.util.List;public class UserInfo {private Integer id;private String uname;private Integer unumber;private List<CourseInfo> courseInfos;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getUname() {return uname;}public void setUname(String uname) {this.uname = uname == null ? null : uname.trim();}public Integer getUnumber() {return unumber;}public void setUnumber(Integer unumber) {this.unumber = unumber;}public List<CourseInfo> getCourseInfos() {return courseInfos;}}

?? Dao包中的UserInfoMapper.java

?

??

package org.andy.shop.dao;import java.util.List;import org.andy.shop.model.UserInfo;public interface UserInfoMapper {int deleteByPrimaryKey(Integer id);int insert(UserInfo record);int insertSelective(UserInfo record);UserInfo selectByPrimaryKey(Integer id);int updateByPrimaryKeySelective(UserInfo record);int updateByPrimaryKey(UserInfo record);List<UserInfo> selectAll(); }

mapping 中的配置文件UserInfoMapper.xml

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?

<?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="org.andy.shop.dao.UserInfoMapper"><resultMap id="BaseResultMap" type="org.andy.shop.model.UserInfo"><id column="id" property="id" jdbcType="INTEGER" /><result column="uname" property="uname" jdbcType="VARCHAR" /><result column="unumber" property="unumber" jdbcType="INTEGER" /></resultMap><sql id="Base_Column_List">id, uname, unumber</sql><select id="selectByPrimaryKey" resultMap="BaseResultMap"parameterType="java.lang.Integer">select<include refid="Base_Column_List" />from user_infowhere id = #{id,jdbcType=INTEGER}</select><delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">delete fromuser_infowhere id = #{id,jdbcType=INTEGER}</delete><insert id="insert" parameterType="org.andy.shop.model.UserInfo">insert into user_info (id,uname, unumber)values (#{id,jdbcType=INTEGER},#{uname,jdbcType=VARCHAR},#{unumber,jdbcType=INTEGER})</insert><insert id="insertSelective" parameterType="org.andy.shop.model.UserInfo">insert into user_info<trim prefix="(" suffix=")" suffixOverrides=","><if test="id != null">id,</if><if test="uname != null">uname,</if><if test="unumber != null">unumber,</if></trim><trim prefix="values (" suffix=")" suffixOverrides=","><if test="id != null">#{id,jdbcType=INTEGER},</if><if test="uname != null">#{uname,jdbcType=VARCHAR},</if><if test="unumber != null">#{unumber,jdbcType=INTEGER},</if></trim></insert><update id="updateByPrimaryKeySelective" parameterType="org.andy.shop.model.UserInfo">update user_info<set><if test="uname != null">uname = #{uname,jdbcType=VARCHAR},</if><if test="unumber != null">unumber = #{unumber,jdbcType=INTEGER},</if></set>where id = #{id,jdbcType=INTEGER}</update><update id="updateByPrimaryKey" parameterType="org.andy.shop.model.UserInfo">update user_infoset uname = #{uname,jdbcType=VARCHAR},unumber =#{unumber,jdbcType=INTEGER}where id = #{id,jdbcType=INTEGER}</update><resultMap type="org.andy.shop.model.UserInfo" id="UserCourseMap"extends="BaseResultMap"><collection property="courseInfos" javaType="list"ofType="org.andy.shop.model.CourseInfo"><id property="id" column="course_id" jdbcType="INTEGER" /><result property="cname" column="cname" jdbcType="VARCHAR" /><result property="caddress" column="caddress" jdbcType="VARCHAR" /></collection></resultMap><select id="selectAll" resultMap="UserCourseMap">select u.id, u.uname,u.unumber, c.id course_id, c.cname, c.caddress from user_info u leftjoin course_user_info cu on u.id = cu.uidleft join course_info c oncu.cid = c.id</select> </mapper>

?

?

4、引入Spring并配置相關屬性

???? 在src/main/resources創建spring的配置文件，這里創建了spring.xml，信息如下：

???

<?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"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-4.1.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.1.xsd"><!--引入配置屬性文件 --><context:property-placeholder location="classpath:config.properties" /><!--自動掃描含有@Service將其注入為bean --><context:component-scan base-package="org.andy.shop.service" /></beans>

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?

5、引入Mybatis并配置數據連接池等信息

?? 5.1、數據連接池druid配置信息?

?? 配置連接池配置信息在config.properties中，如下：

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#mysql version database druid setting validationQuery=SELECT 1 jdbc.url=jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf-8 jdbc.username=root jdbc.password=12345

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?

? 5.2、配置Mybatis相關信息

??? 以下是mybatis的配置信息：spring-mybatis.xml（ps：名字可隨便起）

?

<?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"xmlns:aop="http://www.springframework.org/schema/aop"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd"><!-- 配置數據源 使用的是Druid數據源 --><bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource"init-method="init" destroy-method="close"><property name="url" value="${jdbc.url}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><!-- 初始化連接大小 --><property name="initialSize" value="0" /><!-- 連接池最大使用連接數量 --><property name="maxActive" value="20" /><!-- 連接池最小空閑 --><property name="minIdle" value="0" /><!-- 獲取連接最大等待時間 --><property name="maxWait" value="60000" /><property name="poolPreparedStatements" value="true" /><property name="maxPoolPreparedStatementPerConnectionSize"value="33" /><!-- 用來檢測有效sql --><property name="validationQuery" value="${validationQuery}" /><property name="testOnBorrow" value="false" /><property name="testOnReturn" value="false" /><property name="testWhileIdle" value="true" /><!-- 配置間隔多久才進行一次檢測，檢測需要關閉的空閑連接，單位是毫秒 --><property name="timeBetweenEvictionRunsMillis" value="60000" /><!-- 配置一個連接在池中最小生存的時間，單位是毫秒 --><property name="minEvictableIdleTimeMillis" value="25200000" /><!-- 打開removeAbandoned功能 --><property name="removeAbandoned" value="true" /><!-- 1800秒，也就是30分鐘 --><property name="removeAbandonedTimeout" value="1800" /><!-- 關閉abanded連接時輸出錯誤日志 --><property name="logAbandoned" value="true" /><!-- 監控數據庫 --><property name="filters" value="mergeStat" /></bean><!-- myBatis文件 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource" /><!-- 自動掃描entity目錄, 省掉Configuration.xml里的手工配置 --><property name="mapperLocations" value="classpath:org/andy/shop/mapping/*.xml" /></bean><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="org.andy.shop.dao" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /></bean><!-- 配置事務管理器 --><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean><!-- 注解方式配置事物 --><!-- <tx:annotation-driven transaction-manager="transactionManager" /> --><!-- 攔截器方式配置事物 --><tx:advice id="transactionAdvice" transaction-manager="transactionManager"><tx:attributes><tx:method name="insert*" propagation="REQUIRED" /><tx:method name="update*" propagation="REQUIRED" /><tx:method name="delete*" propagation="REQUIRED" /><tx:method name="get*" propagation="SUPPORTS" read-only="true" /><tx:method name="find*" propagation="SUPPORTS" read-only="true" /><tx:method name="select*" propagation="SUPPORTS" read-only="true" /></tx:attributes></tx:advice><!-- Spring aop事務管理 --><aop:config><aop:pointcut id="transactionPointcut"expression="execution(* org.andy.shop.service..*Impl.*(..))" /><aop:advisor pointcut-ref="transactionPointcut"advice-ref="transactionAdvice" /></aop:config></beans>

主要配置數據連接池，事務管理， mybatis關聯映射等，事務采用aop的聲明式事務。

?

?

6、引入日志

? ?? 在src/main/resources中添加log4j日志配置信息：

?? log4j.properties

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### set log levels ### log4j.rootLogger = INFO , C , D , E ### console ### log4j.appender.C = org.apache.log4j.ConsoleAppender log4j.appender.C.Target = System.out log4j.appender.C.layout = org.apache.log4j.PatternLayout log4j.appender.C.layout.ConversionPattern = [springmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n### log file ### log4j.appender.D = org.apache.log4j.DailyRollingFileAppender log4j.appender.D.File = ../logs/springmvc-mybatis-demo.log log4j.appender.D.Append = true log4j.appender.D.Threshold = INFO log4j.appender.D.layout = org.apache.log4j.PatternLayout log4j.appender.D.layout.ConversionPattern = [springmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n### exception ### log4j.appender.E = org.apache.log4j.DailyRollingFileAppender log4j.appender.E.File = ../logs/springmvc-mybatis-demo_error.log log4j.appender.E.Append = true log4j.appender.E.Threshold = ERROR log4j.appender.E.layout = org.apache.log4j.PatternLayout log4j.appender.E.layout.ConversionPattern = [sspringmvc_mybatis_demo][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

?

7、創建Service

??? 在src/main/java中創建相關的org.andy.shop.service包和org.andy.shop.service.Impl包。

??? UserService接口：

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package org.andy.shop.service;import java.util.List;import org.andy.shop.model.UserInfo;/** * 創建時間：2015-1-27 下午5:15:03 * @author andy * @version 2.2 */public interface UserService {UserInfo getUserById(int id);List<UserInfo> getUsers();int insert(UserInfo userInfo); }

?? UserServiceImpl實現Service：

?

?

package org.andy.shop.service.impl;import java.util.List;import org.andy.shop.dao.UserInfoMapper; import org.andy.shop.model.UserInfo; import org.andy.shop.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service;/*** 創建時間：2015-1-27 下午5:22:59* * @author andy* @version 2.2*/ @Service("userService") public class UserServiceImpl implements UserService {@Autowiredprivate UserInfoMapper userInfoMapper;@Overridepublic UserInfo getUserById(int id) {return userInfoMapper.selectByPrimaryKey(id);}@Overridepublic List<UserInfo> getUsers() {return userInfoMapper.selectAll();}@Overridepublic int insert(UserInfo userInfo) {int result = userInfoMapper.insert(userInfo);System.out.println(result);return result;}}

?

?

8、測試Spring和Mybatis配置

?? 在src/test/java中寫測試類，檢測是否能夠讀出數據，若能讀出則證明Spring+Mybatis整合成功。

TestUserService測試類：

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package org.andy.shop.service;import java.util.List;import org.andy.shop.model.UserInfo; import org.apache.log4j.Logger; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import com.alibaba.fastjson.JSON;/*** 創建時間：2015-1-27 下午10:45:38* * @author andy* @version 2.2*/ @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = { "classpath:spring.xml","classpath:spring-mybatis.xml" }) public class TestUserService {private static final Logger LOGGER = Logger.getLogger(TestUserService.class);@Autowiredprivate UserService userService;@Testpublic void testQueryById1() {UserInfo userInfo = userService.getUserById(1);LOGGER.info(JSON.toJSON(userInfo));}@Testpublic void testQueryAll() {List<UserInfo> userInfos = userService.getUsers();LOGGER.info(JSON.toJSON(userInfos));}@Testpublic void testInsert() {UserInfo userInfo = new UserInfo();userInfo.setUname("xiaoming");userInfo.setUnumber(4);int result = userService.insert(userInfo);System.out.println(result);} }

若是測試成功，那證明已經成功了一半了。

?

9、引入SpringMVC

?? 9.1 配置SpringMVC配置信息

??? SpringMVC的配置信息主要包括控制層Controller的bean管理，視圖層和控制層配置等等，下面是spring-mvc.xml信息：

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<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"><!-- 自動掃描controller包下的所有類，如果@Controller注入為bean --><context:component-scan base-package="org.andy.shop.controller" /><!-- 避免IE執行AJAX時,返回JSON出現下載文件 --><bean id="mappingJacksonHttpMessageConverter"class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"><property name="supportedMediaTypes"><list><value>text/html;charset=UTF-8</value></list></property></bean><!-- 啟動Spring MVC的注解功能，完成請求和注解POJO的映射 --><beanclass="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"><property name="messageConverters"><list><!-- json轉換器 --><ref bean="mappingJacksonHttpMessageConverter" /></list></property></bean><!-- 對模型視圖名稱的解析，即在模型視圖名稱添加前后綴 --><beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="viewClass"value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/WEB-INF/views" /><property name="suffix" value=".jsp" /></bean><!-- 配置多文件上傳 --><bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver"><property name="defaultEncoding"><value>UTF-8</value></property><property name="maxUploadSize"><!-- 上傳文件大小限制為31M，31*1024*1024 --><value>32505856</value></property><property name="maxInMemorySize"><value>4096</value></property></bean></beans>

? 自動掃描org.andy.shop.controller報下還有@Controller的控制層，注入為bean。

?

?9.2、Web容器web.xml配置

??? web容器配置啟動加載的配置文件，設置SpringMVC攔截的請求（此處攔截.htmls結尾的url請求）

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<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"id="WebApp_ID" version="2.5"><display-name>springmvc_mybatis_demo</display-name><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value></context-param><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><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 防止spring內存溢出監聽器 --><listener><listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class></listener><servlet><description>spring mvc servlet</description><servlet-name>rest</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>rest</servlet-name><url-pattern>*.htmls</url-pattern></servlet-mapping><!-- 配置session超時時間，單位分鐘 --><session-config><session-timeout>30</session-timeout></session-config><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list> </web-app>

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? 9.3、Controller控制層

??? 在org.andy.shop.controller創建控制層，如UserController.java

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package org.andy.shop.controller;import java.util.List;import org.andy.shop.model.UserInfo; import org.andy.shop.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody;/** * 創建時間：2015-1-28 下午1:17:27 * @author andy * @version 2.2 */ @Controller @RequestMapping("/user") public class UserController {@Autowiredprivate UserService userService;@RequestMapping("/showInfo/{userId}")public String showUserInfo(ModelMap modelMap, @PathVariable int userId){UserInfo userInfo = userService.getUserById(userId);modelMap.addAttribute("userInfo", userInfo);return "/user/showInfo";}@RequestMapping("/showInfos")public @ResponseBody Object showUserInfos(){List<UserInfo> userInfos = userService.getUsers();return userInfos;} }

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9.4、視圖層

? 在WEB-INF創建視圖總目錄views(為了安全起見一般都在WEB-INF下創建)，創建/user/showInfo.jsp視圖文件。

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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>userInfo</title> </head> <body>姓名： ${userInfo.uname}</body> </html>

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?9.5、項目總目錄結構

?? 到此為demo以及基本創建完成總目錄如下：

?????

10、項目測試

??? 將項目編譯，Maven build...輸入clean compile package，部署到Tomcat服務器，啟動項目。

?? 測試1：測試第一個url，? http://localhost:8080/springmvc_mybatis_demo/user/showInfo/1.htmls

?? ??

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?? 測試2：測試第二個json數據返回的url，? http://localhost:8080/springmvc_mybatis_demo/user/showInfos.htmls

? ??

核心技術：Maven,Springmvc mybatis shiro, Druid, Restful, Dubbo, ZooKeeper,Redis,FastDFS,ActiveMQ,Nginx?
1.?????項目核心代碼結構截圖

?? 項目模塊依賴

特別提醒：開發人員在開發的時候可以將自己的業務REST服務化或者Dubbo服務化

2.????項目依賴介紹

???2.1?后臺管理系統、Rest服務系統、Scheculer定時調度系統依賴如下圖：

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?????? 2.2?Dubbo獨立服務項目依賴如下圖：

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3.??項目功能部分截圖：

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zookeeper、dubbo服務啟動?

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dubbo管控臺?

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?REST服務平臺

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轉載于:https://my.oschina.net/grthrj/blog/759572

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