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！