SpringMVC与mybatis整合详解编程语言

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE generatorConfiguration 
  PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" 
  "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"> 
<generatorConfiguration> 
    <context id="testTables" targetRuntime="MyBatis3"> 
        <commentGenerator> 
            <!-- 是否去除自动生成的注释 true：是 ： false:否 --> 
            <property name="suppressAllComments" value="true" /> 
        </commentGenerator> 
        <!--数据库连接的信息：驱动类、连接地址、用户名、密码 --> 
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" 
            connectionURL="jdbc:mysql://localhost:3307/mybatis" userId="root" 
            password="jalja"> 
        </jdbcConnection> 
        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和  
            NUMERIC 类型解析为java.math.BigDecimal --> 
        <javaTypeResolver> 
            <property name="forceBigDecimals" value="false" /> 
        </javaTypeResolver> 
 
        <!-- targetProject:生成PO类的位置 --> 
        <javaModelGenerator targetPackage="com.jalja.springmvc_mybatis.model.pojo" 
            targetProject="./src"> 
            <!-- enableSubPackages:是否让schema作为包的后缀 --> 
            <property name="enableSubPackages" value="false" /> 
            <!-- 从数据库返回的值被清理前后的空格 --> 
            <property name="trimStrings" value="true" /> 
        </javaModelGenerator> 
        <!-- targetProject:mapper映射文件生成的位置 --> 
        <sqlMapGenerator targetPackage="com.jalja.springmvc_mybatis.mapper"  
            targetProject="./src"> 
            <!-- enableSubPackages:是否让schema作为包的后缀 --> 
            <property name="enableSubPackages" value="false" /> 
        </sqlMapGenerator> 
        <!-- targetPackage：mapper接口生成的位置 --> 
        <javaClientGenerator type="XMLMAPPER" 
            targetPackage="com.jalja.springmvc_mybatis.mapper"  
            targetProject="./src"> 
            <!-- enableSubPackages:是否让schema作为包的后缀 --> 
            <property name="enableSubPackages" value="false" /> 
        </javaClientGenerator> 
        <!-- 指定数据库表 --> 
        <table tableName="items"></table> 
        <table tableName="orders"></table> 
        <table tableName="orderdetail"></table> 
        <table tableName="user"></table> 
    </context> 
</generatorConfiguration>

 public static void main(String[] arhs) throws Exception{ 
            List<String> warnings = new ArrayList<String>(); 
            boolean overwrite = true; 
            File configFile = new File("src.main.resources/generator.xml"); 
            ConfigurationParser cp = new ConfigurationParser(warnings); 
            Configuration config = cp.parseConfiguration(configFile); 
            DefaultShellCallback callback = new DefaultShellCallback(overwrite); 
            MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings); 
            myBatisGenerator.generate(null); 
        }

<?xml version="1.0" encoding="UTF-8"?>   
<web-app xmlns="http://java.sun.com/xml/ns/javaee" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
  http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">  
     <welcome-file-list>   
        <welcome-file>index.jsp</welcome-file>   
    </welcome-file-list>  
     <context-param> 
        <param-name>contextConfigLocation</param-name> 
        <param-value> classpath:spring/applicationContext-*.xml </param-value> 
    </context-param> 
     <listener>   
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>   
    </listener>  
     
     
    <context-param>   
        <param-name>log4jConfigLocation</param-name>   
        <param-value>classpath:log4j.properties</param-value>   
    </context-param>   
    <context-param>   
        <param-name>log4jRefreshInterval</param-name>   
        <param-value>3000</param-value>   
    </context-param>   
     <listener>   
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>   
    </listener>  
     
    <!-- post请求乱码 --> 
    <filter> 
        <filter-name>SpringEncodingFilter</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>SpringEncodingFilter</filter-name> 
        <url-pattern>*.do</url-pattern> 
    </filter-mapping>  
     
    <!-- springMvc前端控制器 -->  
    <servlet>   
        <servlet-name>springMvc</servlet-name>   
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>   
        <init-param>   
            <!--  
               contextConfigLocation加载   springMvc的配置文件(处理器适配器 ，映射器)  
                                             如果不配置默认加载的是 /WEB-INF/servlet名称-servlet.xml(springMvc-servlet.xml) 
             --> 
            <param-name>contextConfigLocation</param-name>   
            <param-value>classpath:spring/springmvc.xml</param-value>   
        </init-param>   
        <load-on-startup>1</load-on-startup>   
    </servlet>   
    <servlet-mapping>   
        <servlet-name>springMvc</servlet-name>   
        <!-- 
        1、*.do :DispatcherServlet 解析所有 *.do 结尾的访问 
        2、  /   :DispatcherServlet解析所有请求（包括静态资源） 这种配置可以实现restful风格的url 
        3、/*:  这种配置最终要转发到一个jsp页面  
         --> 
        <url-pattern>*.do</url-pattern>   
    </servlet-mapping>   
     
     
     <!-- springMvc前端控制器     RestFul   
    <servlet>   
        <servlet-name>springMvc_rest</servlet-name>   
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>   
        <init-param>   
            <param-name>contextConfigLocation</param-name>   
            <param-value>classpath:spring/applicationContext-springmvc.xml</param-value>   
        </init-param>   
        <load-on-startup>1</load-on-startup>   
    </servlet>   
    <servlet-mapping>   
        <servlet-name>springMvc_rest</servlet-name>   
        <url-pattern>/</url-pattern>   
    </servlet-mapping>   
    --> 
     
     
     
    <session-config> 
        <session-timeout>30</session-timeout> 
    </session-config> 
</web-app>  

<?xml version="1.0" encoding="UTF-8" ?>   
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">   
<configuration>   
   <!--  
                各个属性 
     properties： 
     setting（全局配置参数配置）：mybatis运行时可以调整一些运行参数  例如：开启二级缓存、开启延迟加载  
     typeAliases(类型别名): 在mapper.xml中定义parameterType 参数类型  resultType 返回类型时   
                              需要指定类型的路径 不方便开发，我们开一针对 这些类型给其指定别名 
     typeHandler(类型处理器):在mybatis 中是通过typeHandler 完成 jdbc类型与java类型的转化 ，mybatis 提供的处理器已可满足 开发需求  
     objectFactory(对象工厂)： 
     plugins(插件): 
     environments(环境集合属性对象): 
     environment（环境子属性对象）: 
     transactionManager(事务管理): 
     dataSource(数据源): 
     mappers(映射器):          
    --> 
    <!-- 对事务的管理和连接池的配置 -->   
    <!-- 延迟加载   --> 
    <settings> 
         <!-- 打开延迟加载 --> 
        <setting name="lazyLoadingEnabled" value="true"/> 
        <!--  积极加载改为消极加载 --> 
        <setting name="aggressiveLazyLoading" value="false"/> 
        <!-- 开启二级缓存 --> 
        <setting name="cacheEnabled" value="true"/> 
    </settings> 
     
    <typeAliases> 
        <!-- 针对单个别名定义 --> 
        <!-- <typeAlias type="com.jalja.myBatis.model.User" alias="user"/> --> 
        <!--批量别名的定义  mybatis 自动扫描包中的类 别名就是类名（首字母大小写都可以）  --> 
        <package name="com.jalja.springmvc_mybatis.model.pojo"/> 
        <package name="com.jalja.springmvc_mybatis.model.custom"/> 
        <package name="com.jalja.springmvc_mybatis.model.vo"/> 
    </typeAliases> 
     
    <!--加载映射文件 --> 
       <!-- <mappers>  <mapper resource="com/jalja/spring_mybatis/mapper/UserMapper.xml"/> --> 
       <!-- 和spring整合后   可以去掉  
        <package name="com.jalja.spring_mybatis.mapper"/>    </mappers>--> 
    
</configuration>

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:cache="http://www.springframework.org/schema/cache" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/aop    
        http://www.springframework.org/schema/aop/spring-aop-3.2.xsd    
        http://www.springframework.org/schema/beans    
        http://www.springframework.org/schema/beans/spring-beans-3.2.xsd    
        http://www.springframework.org/schema/context    
        http://www.springframework.org/schema/context/spring-context-3.2.xsd    
        http://www.springframework.org/schema/mvc    
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd    
        http://www.springframework.org/schema/tx    
        http://www.springframework.org/schema/tx/spring-tx-3.2.xsd 
        http://www.springframework.org/schema/cache  
        http://www.springframework.org/schema/cache/spring-cache-3.2.xsd"> 
          <!-- 引入jdbc配置文件 --> 
    <context:property-placeholder location="classpath:jdbc.properties"/>  
     <!-- 对JDBC配置进行解密   
    <bean id="propertyConfigurer" class="cn.com.sinobpo.project.wfjb.utils.EncryptablePropertyPlaceholderConfigurer">   
         <property name="locations"> 
             <list> 
                 <value>classpath:resources/config/jdbc.properties</value> 
             </list> 
         </property> 
    </bean> --> 
     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  destroy-method="close"> 
        <property name="driverClassName"> 
          <value>${jdbc_driverClassName}</value> 
        </property> 
        <property name="url"> 
          <value>${jdbc_url}</value> 
        </property> 
        <property name="username"> 
          <value>${jdbc_username}</value> 
        </property> 
        <property name="password"> 
          <value>${jdbc_password}</value> 
        </property> 
        <!-- 连接池最大使用连接数 --> 
        <property name="maxActive"> 
          <value>20</value> 
        </property> 
        <!-- 初始化连接大小 --> 
        <property name="initialSize"> 
          <value>1</value> 
        </property> 
        <!-- 获取连接最大等待时间 --> 
        <property name="maxWait"> 
          <value>60000</value> 
        </property> 
        <!-- 连接池最大空闲 --> 
        <property name="maxIdle"> 
          <value>20</value> 
        </property> 
        <!-- 连接池最小空闲 --> 
        <property name="minIdle"> 
          <value>3</value> 
        </property> 
        <!-- 自动清除无用连接 --> 
        <property name="removeAbandoned"> 
          <value>true</value> 
        </property> 
        <!-- 清除无用连接的等待时间 --> 
        <property name="removeAbandonedTimeout"> 
          <value>180</value> 
        </property> 
        <!-- 连接属性 --> 
        <property name="connectionProperties"> 
          <value>clientEncoding=UTF-8</value> 
        </property> 
  </bean> 
     <!-- spring和MyBatis完美整合 -->   
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">   
        <property name="dataSource" ref="dataSource"/>   
        <property name="configLocation" value="classpath:mybatis/applicationContext-mybatis.xml"/> 
    </bean>  
    <!--使用 mapper 代理 的方式     mapper扫描器 --> 
   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
           <!-- 扫描包路径  如果需要扫描多个包 ，中间使用半角逗号隔开 --> 
       <property name="basePackage" value="com.jalja.springmvc_mybatis.mapper"/>   
       <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>   
   </bean>  
     
      
    <!--声明式 事务管理   使用jdbc的事务管理  --> 
      <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 
        <property name="dataSource" ref="dataSource"></property> 
     </bean> 
    <!-- 配置事务通知--> 
    <tx:advice id="txAdvice" transaction-manager="transactionManager"> 
      <tx:attributes> 
        <tx:method name="update*" propagation="REQUIRED"/> 
        <tx:method name="save*" 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:attributes> 
    </tx:advice> 
    <!-- 配置事务的切点,并把事务切点和事务属性不关联起来AOP --> 
    <aop:config> 
        <aop:advisor advice-ref="txAdvice"  pointcut="execution(* com.jalja.springmvc_mybatis.service.impl.*.*(..))"/> 
    </aop:config> 
</beans>  

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:cache="http://www.springframework.org/schema/cache" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/aop    
        http://www.springframework.org/schema/aop/spring-aop-3.2.xsd    
        http://www.springframework.org/schema/beans    
        http://www.springframework.org/schema/beans/spring-beans-3.2.xsd    
        http://www.springframework.org/schema/context    
        http://www.springframework.org/schema/context/spring-context-3.2.xsd    
        http://www.springframework.org/schema/mvc    
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd    
        http://www.springframework.org/schema/tx    
        http://www.springframework.org/schema/tx/spring-tx-3.2.xsd 
        http://www.springframework.org/schema/cache  
        http://www.springframework.org/schema/cache/spring-cache-3.2.xsd"> 
         
    <bean id="itemsService" class="com.jalja.springmvc_mybatis.service.impl.ItemsServiceImpl"></bean> 
</beans>  

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:cache="http://www.springframework.org/schema/cache" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://www.springframework.org/schema/aop    
        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd    
        http://www.springframework.org/schema/beans    
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd    
        http://www.springframework.org/schema/context    
        http://www.springframework.org/schema/context/spring-context-3.0.xsd    
        http://www.springframework.org/schema/mvc    
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd    
        http://www.springframework.org/schema/tx    
        http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 
        http://www.springframework.org/schema/cache  
        http://www.springframework.org/schema/cache/spring-cache-3.2.xsd"> 
         
     <!--注解 处理器 映射器 --> 
     <!-- 映射器  org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping     springmvc3.1以前-->   
     <!-- 映射器  org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping  springmvc3.1以后 --> 
     <!-- 适配器  org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter     springmvc3.1以前-->   
     <!-- 适配器 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter  springmvc3.1以后 --> 
    <!--配置映射器和  适配器  
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/> 
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/> --> 
    <!-- 开启注解  映射器和  适配器    这种方式默认加载了很多参数绑定的方法 例如 json转换解析器--> 
    <mvc:annotation-driven/> 
    <!--  配置 Handler 
    <bean class="com.jalja.springmvc_mybatis.controller.UserController"/>--> 
    <!-- 注解 配置              基于组建扫描的方式 --> 
     <context:component-scan base-package="com.jalja.springmvc_mybatis.controller" /> 
    <!-- 配置自定义参数解析器 --> 
    <mvc:annotation-driven conversion-service="conversionService"/> 
    <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean"> 
        <property name="converters"> 
            <list> 
                <!-- 日期类型转换 --> 
                <bean class="com.jalja.springmvc_mybatis.converter.CustomDateConverter"></bean> 
            </list> 
        </property> 
    </bean> 
    <!-- 全局异常处理器 --> 
    <bean class="com.jalja.springmvc_mybatis.exception.CustomExceptionResolver"/> 
    <!-- 文件上传 --> 
    <!-- 支持上传文件 -->   
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> 
        <!-- 文件大小 5M --> 
        <property name="maxUploadSize" value="5242880"/> 
    </bean>   
     
    <!-- 使用  restFul 风格 编程 照成 的 静态资源 访问  问题  --> 
    <!-- <mvc:resources  mapping="/js/**" location="/resources/js/"/>  --> 
    
    <!-- springMVC拦截器的配置 --> 
    <mvc:interceptors> 
        <mvc:interceptor> 
            <mvc:mapping path="/**" /> 
            <bean class="com.jalja.springmvc_mybatis.interceptor.LoginInterceptor" /> 
        </mvc:interceptor> 
    </mvc:interceptors> 
     
     
     
    <!-- 视图映射      jsp解析  默认使用jstl--> 
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
        <!-- 默认使用 --> 
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> 
        <property name="prefix" value="/WEB-INF/jsp/" /> 
        <property name="suffix" value=".jsp" /> 
    </bean>   
</beans>

jdbc_driverClassName=com.mysql.jdbc.Driver 
jdbc_url=jdbc:mysql://localhost:3306/mybatis?useUnicode=true&characterEncoding=UTF-8 
jdbc_username=root 
jdbc_password=111111

#在开发环境下的日志级别 要设置成debug，生成环境设置成info 或error 
log4j.rootLogger=debug, stdout 
log4j.logger.org.apache.ibatis=debug 
log4j.appender.stdout=org.apache.log4j.ConsoleAppender 
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

package com.jalja.springmvc_mybatis.controller; 
 
import java.io.File; 
import java.util.List; 
import java.util.UUID; 
 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.PathVariable; 
import org.springframework.web.bind.annotation.RequestBody; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 
import org.springframework.web.bind.annotation.RequestParam; 
import org.springframework.web.bind.annotation.ResponseBody; 
import org.springframework.web.multipart.MultipartFile; 
 
import com.jalja.springmvc_mybatis.exception.CustomException; 
import com.jalja.springmvc_mybatis.model.custom.ItemsCustom; 
import com.jalja.springmvc_mybatis.service.ItemsService; 
/** 
 * 商品  
 * @author PC003 
 *conterver参数转换器  springMvc提供了很多参数转换器 
 */ 
@Controller 
@RequestMapping("/items")  //窄化请求映射 
public class ItemsController { 
    @Autowired ItemsService itemsService; 
     
    @RequestMapping(value="/findItemsList") 
    public String findItemsList(Model model) throws Exception{ 
        List<ItemsCustom> itemsList=itemsService.findItemsList(null); 
        System.out.println(itemsList); 
        model.addAttribute("itemsList", itemsList); 
        return "itemsList"; 
    } 
    @RequestMapping(value="/editItems", method={RequestMethod.POST,RequestMethod.GET}) //限制Http请求方式 
    //@RequestParam 将请求参数 与 形式参数进行绑定   required:指定属性必须传入值 defaultValue:设置默认值 
    public String editItems(Model model, @RequestParam(value="id",required=true,defaultValue="0") Integer itemsId) throws Exception{ 
        ItemsCustom itemsCustom=itemsService.findItemsById(itemsId); 
        if(itemsCustom==null){ 
            throw new CustomException("商品不存在"); 
        } 
        model.addAttribute("itemsCustom", itemsCustom); 
        return "editItems"; 
    } 
    @RequestMapping(value="/updateItems") 
    public String editItemsSubmit(Integer id,ItemsCustom itemsCustom,MultipartFile itemsPic) throws Exception{ 
        String uploadFileName=itemsPic.getOriginalFilename();//获取上传的文件名 
        if(itemsPic!=null && uploadFileName!=null && !uploadFileName.equals("")){ 
            String imagesPath="E://develop//upload//images//"; 
            String newFileName=UUID.randomUUID()+uploadFileName.substring(uploadFileName.lastIndexOf("."),uploadFileName.length()); 
            File newFile=new File(imagesPath+newFileName); 
            itemsPic.transferTo(newFile);//将内存中的数据写入磁盘 
            itemsCustom.setPic(newFileName); 
        } 
        itemsService.updateItemsById(id, itemsCustom); 
        return "redirect:findItemsList.do"; //重定向 
    } 
    //JSON的使用   @ResponseBody：将对像转json输出   @RequestBody:将请求参数转 java对象 
    @RequestMapping(value="/jsonRequest") 
    public @ResponseBody ItemsCustom jsonRequest(@RequestBody ItemsCustom itemsCustom) throws Exception{ 
        return itemsCustom; 
    } 
    //RestFul 风格 编程     /restFulRequest/{id}：表示将这个位置的参数传到  @PathVariable 指定的名称中 
    @RequestMapping(value="/restFulRequest/{id}") 
    public @ResponseBody ItemsCustom restFulRequest(@PathVariable("id") Integer id) throws Exception{ 
        ItemsCustom itemsCustom=itemsService.findItemsById(id); 
        return itemsCustom; 
    } 
}