Spring+SpringMvc+Mybatis 框架的搭建（二）

4.4 mybatis-config.xml

　　这部分可以配置也可以不配置。

 <?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>

     <settings>
         <setting name="cacheEnabled" value="true" />
         <setting name="lazyLoadingEnabled" value="true" />
         <setting name="aggressiveLazyLoading" value="true" />
         <setting name="multipleResultSetsEnabled" value="true" />
         <setting name="useColumnLabel" value="true" />
         <setting name="useGeneratedKeys" value="false" />
         <setting name="autoMappingBehavior" value="PARTIAL" />
         <setting name="defaultExecutorType" value="SIMPLE" />
         <setting name="defaultStatementTimeout" value="25000" />
     </settings>
19 </configuration>    

4.5 spring-mvc.xml 配置

 <?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:context="http://www.springframework.org/schema/context"
     xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

     <!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->

     <!-- 扫描控制器包 -->
     <!-- @Service用于标注业务层组件、 @Controller用于标注控制层组件、@Repository用于标注数据访问组件，即DAO组件。而@Component泛指组件，当组件不好归类的时候，我们可以使用这个注解进行标注。-->
     <context:component-scan base-package="com.vivebest.controller" />

     <!-- Enables the Spring MVC @Controller programming model -->
     <!-- 启动springmvc注解 -->
     <mvc:annotation-driven />

     <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射，解决@ResponseBody乱码问题  -->
     <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
         <property name="messageConverters">
             <list>
                 <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                     <property name="supportedMediaTypes">
                         <list>
                             <value>text/html;charset=UTF-8</value>
                             <value>text/plain;charset=UTF-8</value>
                             <value>application/json;charset=UTF-8</value>
                         </list>
                     </property>
                 </bean>
             </list>
         </property>
     </bean>
     <!--视图解析的配置-->
     <!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/jsp/" />
         <property name="suffix" value=".jsp" /><!--controller层中返回页面是可以不加.jsp后缀-->
     </bean>
 </beans>

5.Spring和Mybatis测试

　　5.1 测试分为两种(1.使用junit测试   2.编写测试类)

　　　　我用的是编写测试类测试　　　　

 package com.vivebest.test;

 import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 import com.vivebest.service.CustomerService;

 public class Test {
     private ApplicationContext ac = null;
     public static void main(String[] args) {
         Test test=new Test();
         test.before();
     }
     public void before() {
       ac = new ClassPathXmlApplicationContext("applicationContext.xml"); //引入配置文件
       CustomerService customerService= (CustomerService) ac.getBean("customerService");//需要注意这里的customerService 是在service中使用@Service（“customerService”）一致
       System.out.println(customerService.getAllCustomer());
     /*  CustomerService TellerService= (CustomerService) ac.getBean("TellerService");
       System.out.println(TellerService);*/
   }
 }

6.SSM整合测试

　　编写controller层

 package com.vivebest.controller;

 import java.util.List;
 import javax.servlet.http.HttpServletRequest;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.ResponseBody;
 import com.vivebest.entity.Customer;
 import com.vivebest.service.CustomerService;

 @Controller//标明为控制层
 @RequestMapping("/customer")//相当于路径
 public class CustomerController{

     @Autowired
     private CustomerService customerService;

     /**
      * 客户登陆
      */
     @RequestMapping(value ="/customerLogin", method = RequestMethod.POST)
     public String customerLogin(Model model,HttpServletRequest req){
         List<Customer> cusList=customerService.getAllCustomer();
         Customer custom=cusList.get(0);
         req.setAttribute("custome", custom);
         System.out.println(custom);
         return "finally";
     }
 }

编写jsp页面，在jsp页面中我遇到了一个小问题，即

在使用jstl.jar中 因为

"org.apache.jasper.JasperException: This absolute uri (http://java.sun.com/jsp/jstl/core ) cannot be resolved in either web.xml or the jar files deployed with this application "

由于JSTL1.0和JSTL1.1的声明语句不一样。

这个问题在另一边文章中我做了总结，大家可以去游览。

启动工程，测试成功！