我个人比较喜欢写注释，在工作中对注释的重要性看的也比较高，所以大部分文字都在注释中，代码外的文字会写的偏少，关键能懂就行
先看一下整合后的工程目录（单工程，多工程以后会采用maven）
5个package分别对应 action, entity, mapper（也就是DAO，采用动态代理）, service, service 实现类
resources 下 相关资源文件：
db.properties: 数据库连接参数
log4j.properties： 日志
applicationContext-dao.xml： spring 和 mybatis 整合的一些配置（sqlSessionFactory，mapper 配置）
applicationContext-service.xml： 业务
applicationContext.xml： spring 核心配置文件（配置一些公用的内容，比如数据源，事务）
springmvc.xml： springmvc 全局配置文件
SqlMapConfig.xml： mybatis 全局配置文件
webapp结构简单就不多说了
下面先贴出maven的pom内容：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 4 <modelVersion>4.0.0</modelVersion> 5 <groupId>com.lee</groupId> 6 <artifactId>ssm</artifactId> 7 <name>maven-ssm-hello</name> 8 <packaging>war</packaging> 9 <version>1.0.0-BUILD-SNAPSHOT</version> 10 <properties> 11 <java-version>1.7</java-version> 12 <org.springframework-version>3.2.3.RELEASE</org.springframework-version> 13 <org.aspectj-version>1.6.10</org.aspectj-version> 14 <org.slf4j-version>1.6.6</org.slf4j-version> 15 </properties> 16 17 <dependencies> 18 <!-- Spring --> 19 <dependency> 20 <groupId>org.springframework</groupId> 21 <artifactId>spring-context</artifactId> 22 <version>${org.springframework-version}</version> 23 <exclusions> 24 <!-- Exclude Commons Logging in favor of SLF4j --> 25 <exclusion> 26 <groupId>commons-logging</groupId> 27 <artifactId>commons-logging</artifactId> 28 </exclusion> 29 </exclusions> 30 </dependency> 31 <dependency> 32 <groupId>org.springframework</groupId> 33 <artifactId>spring-webmvc</artifactId> 34 <version>${org.springframework-version}</version> 35 </dependency> 36 <dependency> 37 <groupId>org.springframework</groupId> 38 <artifactId>spring-jdbc</artifactId> 39 <version>${org.springframework-version}</version> 40 </dependency> 41 42 <!-- data source: dbcp --> 43 <dependency> 44 <groupId>commons-dbcp</groupId> 45 <artifactId>commons-dbcp</artifactId> 46 <version>1.4</version> 47 </dependency> 48 49 50 <!-- AspectJ --> 51 <dependency> 52 <groupId>org.aspectj</groupId> 53 <artifactId>aspectjrt</artifactId> 54 <version>${org.aspectj-version}</version> 55 </dependency> 56 57 <!-- Logging --> 58 <dependency> 59 <groupId>org.slf4j</groupId> 60 <artifactId>slf4j-api</artifactId> 61 <version>${org.slf4j-version}</version> 62 </dependency> 63 <dependency> 64 <groupId>org.slf4j</groupId> 65 <artifactId>jcl-over-slf4j</artifactId> 66 <version>${org.slf4j-version}</version> 67 <scope>runtime</scope> 68 </dependency> 69 <dependency> 70 <groupId>org.slf4j</groupId> 71 <artifactId>slf4j-log4j12</artifactId> 72 <version>${org.slf4j-version}</version> 73 <scope>runtime</scope> 74 </dependency> 75 <dependency> 76 <groupId>log4j</groupId> 77 <artifactId>log4j</artifactId> 78 <version>1.2.15</version> 79 <exclusions> 80 <exclusion> 81 <groupId>javax.mail</groupId> 82 <artifactId>mail</artifactId> 83 </exclusion> 84 <exclusion> 85 <groupId>javax.jms</groupId> 86 <artifactId>jms</artifactId> 87 </exclusion> 88 <exclusion> 89 <groupId>com.sun.jdmk</groupId> 90 <artifactId>jmxtools</artifactId> 91 </exclusion> 92 <exclusion> 93 <groupId>com.sun.jmx</groupId> 94 <artifactId>jmxri</artifactId> 95 </exclusion> 96 </exclusions> 97 <scope>runtime</scope> 98 </dependency> 99 100 <!-- @Inject --> 101 <dependency> 102 <groupId>javax.inject</groupId> 103 <artifactId>javax.inject</artifactId> 104 <version>1</version> 105 </dependency> 106 107 <!-- Servlet --> 108 <dependency> 109 <groupId>javax.servlet</groupId> 110 <artifactId>servlet-api</artifactId> 111 <version>2.5</version> 112 <scope>provided</scope> 113 </dependency> 114 <dependency> 115 <groupId>javax.servlet.jsp</groupId> 116 <artifactId>jsp-api</artifactId> 117 <version>2.1</version> 118 <scope>provided</scope> 119 </dependency> 120 <dependency> 121 <groupId>javax.servlet</groupId> 122 <artifactId>jstl</artifactId> 123 <version>1.2</version> 124 </dependency> 125 126 <!-- mybatis --> 127 <dependency> 128 <groupId>org.mybatis</groupId> 129 <artifactId>mybatis</artifactId> 130 <version>3.2.3</version> 131 </dependency> 132 <dependency> 133 <groupId>org.mybatis</groupId> 134 <artifactId>mybatis-spring</artifactId> 135 <version>1.2.3</version> 136 </dependency> 137 <dependency> 138 <groupId>mysql</groupId> 139 <artifactId>mysql-connector-java</artifactId> 140 <version>5.1.38</version> 141 </dependency> 142 143 <!-- Test --> 144 <dependency> 145 <groupId>junit</groupId> 146 <artifactId>junit</artifactId> 147 <version>4.7</version> 148 <scope>test</scope> 149 </dependency> 150 151 <dependency> 152 <groupId>com.alibaba</groupId> 153 <artifactId>druid</artifactId> 154 <version>1.0.18</version> 155 </dependency> 156 157 <dependency> 158 <groupId>org.aspectj</groupId> 159 <artifactId>aspectjweaver</artifactId> 160 <version>1.7.2</version> 161 </dependency> 162 <dependency> 163 <groupId>com.alibaba</groupId> 164 <artifactId>fastjson</artifactId> 165 <version>1.1.34</version> 166 </dependency> 167 <dependency> 168 <groupId>com.fasterxml.jackson.core</groupId> 169 <artifactId>jackson-core</artifactId> 170 <version>2.2.2</version> 171 </dependency> 172 <dependency> 173 <groupId>com.fasterxml.jackson.core</groupId> 174 <artifactId>jackson-databind</artifactId> 175 <version>2.2.2</version> 176 </dependency> 177 178 </dependencies> 179 180 <build> 181 <plugins> 182 <plugin> 183 <artifactId>maven-eclipse-plugin</artifactId> 184 <version>2.9</version> 185 <configuration> 186 <additionalProjectnatures> 187 <projectnature>org.springframework.ide.eclipse.core.springnature</projectnature> 188 </additionalProjectnatures> 189 <additionalBuildcommands> 190 <buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand> 191 </additionalBuildcommands> 192 <downloadSources>true</downloadSources> 193 <downloadJavadocs>true</downloadJavadocs> 194 </configuration> 195 </plugin> 196 197 <plugin> 198 <groupId>org.apache.maven.plugins</groupId> 199 <artifactId>maven-compiler-plugin</artifactId> 200 <version>2.5.1</version> 201 <configuration> 202 <source>1.7</source> 203 <target>1.7</target> 204 <compilerArgument>-Xlint:all</compilerArgument> 205 <showWarnings>true</showWarnings> 206 <showDeprecation>true</showDeprecation> 207 </configuration> 208 </plugin> 209 210 <plugin> 211 <groupId>org.codehaus.mojo</groupId> 212 <artifactId>exec-maven-plugin</artifactId> 213 <version>1.2.1</version> 214 <configuration> 215 <mainClass>org.test.int1.Main</mainClass> 216 </configuration> 217 </plugin> 218 </plugins> 219 </build> 220 </project>
相关资源文件：
SqlMapConfig.xml
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE configuration 3 PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-config.dtd"> 5 <configuration> 6 7 <!-- 定义别名 --> 8 <typeAliases> 9 <!-- 批量别名定义 10 name：指定包名，将包下边的所有pojo定义别名 ，别名为类名（首字母大写或小写都行） 11 --> 12 <package name="com.mybatis.bean"/> 13 </typeAliases> 14 15 </configuration>
applicationContext-dao.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 5 6 <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> 7 <!-- 数据源 --> 8 <property name="dataSource" ref="dataSource" /> 9 <!-- 配置SqlMapConfig.xml --> 10 <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" /> 11 </bean> 12 13 <!-- 14 使用mapper 批量扫描器扫描mapper接口 15 不需要id，规则：mapper.xml 与 mapper.java 同名并且在同一个包下 16 扫描出来的mapper会自动向spring容器中注册，bean的id就是类名（首字母小写） 17 --> 18 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 19 <!-- 配置会话工厂 --> 20 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"></property> 21 <!-- 22 扫描包的路径 23 如果有多个mapper的包，那就用半角的 ',' 来隔开 24 --> 25 <property name="basePackage" value="com.lee.ssm.dao.mapper"></property> 26 </bean> 27 28 </beans>
applicationContext-service.xml（如果喜欢使用注释来配置，这个文件可以不用）
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 5 6 <!-- 用户管理 --> 7 <!-- <bean id="userService" class="com.lee.ssm.service.impl.UserServiceImpl" /> --> 8 </beans>
applicationContext.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:tx="http://www.springframework.org/schema/tx" 6 xmlns:aop="http://www.springframework.org/schema/aop" 7 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 8 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd 9 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 10 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"> 11 12 <!-- 加载配置文件 --> 13 <context:property-placeholder location="classpath:db.properties" /> 14 <!-- 使用第三方的数据库连接池dbcp --> 15 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> 16 <property name="driverClassName" value="${jdbc.driver}" /> 17 <property name="url" value="${jdbc.url}" /> 18 <property name="username" value="${jdbc.username}" /> 19 <property name="password" value="${jdbc.password}" /> 20 <!-- 开发阶段数据库最大连接数建议设置小一点够用即可，设置为3 ***发布的时候要开*** --> 21 <property name="maxActive" value="${jdbc.maxActive}" /> 22 <property name="maxIdle" value="${jdbc.maxIdle}" /> 23 </bean> 24 25 <!-- 事务管理器 26 mybatis使用jdbc事务管理 27 --> 28 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 29 <!-- 数据源 --> 30 <property name="dataSource" ref="dataSource"/> 31 </bean> 32 33 <!-- 通知 --> 34 <tx:advice id="txAdvice" transaction-manager="transactionManager"> 35 <!-- 36 配置传播行为 37 七种配置 - Spring中Propagation类的事务属性： 38 REQUIRED：支持当前事务，如果当前没有事务，就新建一个事务。这是最常见的选择。 39 SUPPORTS：支持当前事务，如果当前没有事务，就以非事务方式执行。 40 MANDATORY：支持当前事务，如果当前没有事务，就抛出异常。 41 REQUIRES_NEW：新建事务，如果当前存在事务，把当前事务挂起。 42 NOT_SUPPORTED：以非事务方式执行操作，如果当前存在事务，就把当前事务挂起。 43 NEVER：以非事务方式执行，如果当前存在事务，则抛出异常。 44 NESTED：支持当前事务，如果当前事务存在，则执行一个嵌套事务，如果当前没有事务，就新建一个事务。 45 **这个配置将影响数据存储，必须根据情况选择。 46 --> 47 <tx:attributes> 48 <!-- 49 name: 目标方法的范围, 例如: save* 就是以save开头的所有方法名(saveUser, saveStudent...) 50 isolation: 数据库隔离级别, 一般都是默认default, 有脏读幻读不可重复读等, 设置后会对数据库性能有一定的影响 51 read-only: true只读事务 false读写事务 52 propagation: 事务的传播属性, 可以解决事务的嵌套问题 53 --> 54 <tx:method name="save*" propagation="REQUIRED"/> 55 <tx:method name="insert*" propagation="REQUIRED"/> 56 <tx:method name="update*" propagation="REQUIRED"/> 57 <tx:method name="delete*" propagation="REQUIRED"/> 58 <tx:method name="display*" propagation="REQUIRED"/> 59 <tx:method name="find*" propagation="SUPPORTS" read-only="true"/> 60 <tx:method name="get*" propagation="SUPPORTS" read-only="true"/> 61 <tx:method name="select*" propagation="SUPPORTS" read-only="true"/> 62 </tx:attributes> 63 </tx:advice> 64 65 <!-- aop配置 --> 66 <aop:config> 67 <!-- aop通知 --> 68 <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.lee.ssm.service.impl.*.*(..))"/> 69 </aop:config> 70 71 </beans>
springmvc.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans:beans xmlns="http://www.springframework.org/schema/mvc" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:beans="http://www.springframework.org/schema/beans" 5 xmlns:context="http://www.springframework.org/schema/context" 6 xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd 7 http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 8 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 9 10 <!-- 组建扫描 --> 11 <context:component-scan base-package="com.lee.ssm" /> 12 13 <annotation-driven /> 14 15 <resources mapping="/resources/**" location="/resources/" /> 16 17 <!-- 18 视图解析器, 解析jsp, 默认使用jstl, lib中要包含 19 --> 20 <beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 21 <beans:property name="prefix" value="/WEB-INF/views/" /> 22 <beans:property name="suffix" value=".jsp" /> 23 </beans:bean> 24 25 26 27 </beans:beans>
db.properties
1 jdbc.driver=com.mysql.jdbc.Driver 2 jdbc.url=jdbc:mysql://localhost:3306/order 3 jdbc.username=root 4 jdbc.password=root 5 jdbc.maxActive=3 6 jdbc.maxIdle=1
HelloController.java
1 package com.lee.ssm.action; 2 3 import javax.annotation.Resource; 4 5 import org.springframework.stereotype.Controller; 6 import org.springframework.ui.Model; 7 import org.springframework.web.bind.annotation.RequestMapping; 8 9 import com.lee.ssm.bean.User; 10 import com.lee.ssm.service.IUserService; 11 12 /** 13 * 14 * @Title: HelloController.java 15 * @Package com.lee.ssm.action 16 * @Description: TODO 17 * Copyright: Copyright (c) 2016 18 * Company:Nathan.Lee.Salvatore 19 * 20 * @author leechenxiang 21 * @date 2016年3月25日 下午10:34:51 22 * @version V1.0 23 */ 24 @Controller 25 @RequestMapping("/root") 26 public class HelloController { 27 28 @Resource 29 private IUserService userService; 30 31 /** 32 * 33 * @Description: TODO 34 * @param model 35 * @return 36 * @throws Exception 37 * 38 * @author leechenxiang 39 * @date 2016年3月25日 下午10:36:49 40 */ 41 @RequestMapping(value = "/hello") 42 public String home(Model model) throws Exception { 43 44 User user = userService.findUserById(1); 45 model.addAttribute("username", user.getName()); 46 47 return "home"; 48 } 49 50 }
User.java
1 package com.lee.ssm.bean; 2 3 public class User { 4 5 private int id; 6 private String username; 7 private int age; 8 private String sex; 9 10 public User() { 11 super(); 12 } 13 14 public User(String username, int age, String sex) { 15 super(); 16 this.username = username; 17 this.age = age; 18 this.sex = sex; 19 } 20 21 public int getId() { 22 return id; 23 } 24 public void setId(int id) { 25 this.id = id; 26 } 27 public String getName() { 28 return username; 29 } 30 public void setName(String username) { 31 this.username = username; 32 } 33 public int getAge() { 34 return age; 35 } 36 public void setAge(int age) { 37 this.age = age; 38 } 39 public String getSex() { 40 return sex; 41 } 42 public void setSex(String sex) { 43 this.sex = sex; 44 } 45 46 @Override 47 public String toString() { 48 return "User [id=" + id + ", name=" + username + ", age=" + age + ", sex=" 49 + sex + "]"; 50 } 51 52 }
UserMapper.xml
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE mapper 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 5 6 <mapper namespace="com.lee.ssm.dao.mapper.UserMapper" > 7 8 <select id="findUserById" parameterType="int" resultType="com.lee.ssm.bean.User"> 9 SELECT * FROM USER WHERE id = #{id} 10 </select> 11 12 <insert id="insertUser" parameterType="com.lee.ssm.bean.User"> 13 insert into user(username,sex) values(#{name},#{sex}) 14 </insert> 15 16 <delete id="deleteUser" parameterType="int"> 17 delete from user where id=#{id} 18 </delete> 19 20 <update id="updateUser" parameterType="com.lee.ssm.bean.User"> 21 update user set username=#{name},sex=#{sex} where id=#{id} 22 </update> 23 24 </mapper>
UserMapper.java
1 package com.lee.ssm.dao.mapper; 2 3 import com.lee.ssm.bean.User; 4 5 public interface UserMapper { 6 7 public User findUserById(int id) throws Exception; 8 9 public Integer insertUser(User user) throws Exception; 10 11 public void deleteUser(int id) throws Exception; 12 13 public void updateUser(User user) throws Exception; 14 }
IUserService.java
1 package com.lee.ssm.service; 2 3 import com.lee.ssm.bean.User; 4 5 public interface IUserService { 6 7 public User findUserById(int id) throws Exception; 8 9 public void displayUser() throws Exception; 10 11 }
UserServiceImpl.java
1 package com.lee.ssm.service.impl; 2 3 import javax.annotation.Resource; 4 5 import org.springframework.stereotype.Service; 6 7 import com.lee.ssm.bean.User; 8 import com.lee.ssm.dao.mapper.UserMapper; 9 import com.lee.ssm.service.IUserService; 10 11 @Service("userService") 12 public class UserServiceImpl implements IUserService { 13 14 @Resource 15 private UserMapper userMapper; 16 17 @Override 18 public User findUserById(int id) throws Exception { 19 return userMapper.findUserById(id); 20 } 21 22 @Override 23 public void displayUser() throws Exception { 24 25 User u1 = new User("nathan.lee.salvatore", 18, "女"); 26 userMapper.insertUser(u1); 27 28 userMapper.deleteUser(1001); 29 30 // int a = 1 / 0; 31 32 User u2 = new User("lee", 22, "男"); 33 u2.setId(16); 34 userMapper.updateUser(u2); 35 36 } 37 38 }
web.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 5 6 <!-- 加载spring 容器, 通配符 加载spring的配置文件 --> 7 <context-param> 8 <param-name>contextConfigLocation</param-name> 9 <param-value>classpath:spring/applicationContext.xml, classpath:spring/applicationContext-*.xml</param-value> 10 </context-param> 11 <listener> 12 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 13 </listener> 14 15 <!-- post乱码处理 --> 16 <filter> 17 <filter-name>CharacterEncodingFilter</filter-name> 18 <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 19 <init-param> 20 <param-name>encoding</param-name> 21 <param-value>utf-8</param-value> 22 </init-param> 23 </filter> 24 <filter-mapping> 25 <filter-name>CharacterEncodingFilter</filter-name> 26 <url-pattern>/*</url-pattern> 27 </filter-mapping> 28 29 <!-- 前端控制器 --> 30 <servlet> 31 <servlet-name>springmvc</servlet-name> 32 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 33 <init-param> 34 <!-- 35 contextConfigLocation 指定spring mvc 全局配置文件 36 如果 contextConfigLocation不指定，默认找配置文件名称：servlet的name+"-servlet.xml" 37 --> 38 <param-name>contextConfigLocation</param-name> 39 <param-value>classpath:spring/springmvc.xml</param-value> 40 </init-param> 41 <!-- 容器在应用启动时就加载并初始化这个servlet --> 42 <load-on-startup>1</load-on-startup> 43 </servlet> 44 45 <servlet-mapping> 46 <servlet-name>springmvc</servlet-name> 47 <url-pattern>/</url-pattern> 48 </servlet-mapping> 49 50 </web-app>
home.jsp
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <%@ page language="java" contentType="text/html; charset=UTF-8" 3 pageEncoding="UTF-8"%> 4 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 5 <html xmlns="http://www.w3.org/1999/xhtml" 6 xmlns:f="http://java.sun.com/jsf/core" 7 xmlns:h="http://java.sun.com/jsf/html"> 8 <head> 9 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 10 <title>Insert title here</title> 11 </head> 12 <body> 13 user's name is: 14 <font color="red">${username }</font> 15 </body> 16 </html>
启动tomcat，测试地址：http://localhost:8080/ssm/root/hello
具体代码可以参考github: https://github.com/leechenxiang/maven-ssm-hello