<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-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/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-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/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
	
   <context:annotation-config />
	<context:component-scan base-package="com.how2java.service" />

	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">  
	  <property name="driverClassName">  
	      <value>com.mysql.jdbc.Driver</value>  
	  </property>  
	  <property name="url">  
	      <value>jdbc:mysql://localhost:3306/how2java?characterEncoding=UTF-8</value>  
	
	  </property>  
	  <property name="username">  
	      <value>root</value>  
	  </property>  
	  <property name="password">  
	      <value>admin</value>  
	  </property>  	
	</bean>
	
	<bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="typeAliasesPackage" value="com.how2java.pojo" />
		<property name="dataSource" ref="dataSource"/>
		<property name="mapperLocations" value="classpath:com/how2java/mapper/*.xml"/>
		<property name="plugins">
		    <array>
		      <bean class="com.github.pagehelper.PageInterceptor">
		        <property name="properties">
		          <!--使用下面的方式配置参数，一行配置一个 -->
		          <value>
		          </value>
		        </property>
		      </bean>
		    </array>
		  </property>		
	</bean>

	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.how2java.mapper"/>
	</bean>
	
</beans>

package com.how2java.service;

import java.util.List;

import com.how2java.pojo.Category;
import com.how2java.util.Page;

public interface CategoryService {

	List<Category> list();
}

package com.how2java.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.how2java.mapper.CategoryMapper;
import com.how2java.pojo.Category;
import com.how2java.service.CategoryService;

@Service
public class CategoryServiceImpl  implements CategoryService{
	@Autowired
	CategoryMapper categoryMapper;
	
	public List<Category> list(){
		return categoryMapper.list();
	}

}

package com.how2java.mapper;
 
import java.util.List;

import com.how2java.pojo.Category;
import com.how2java.util.Page;
 
public interface CategoryMapper {
 
    public int add(Category category);  
       
    public void delete(int id);  
       
    public Category get(int id);  
     
    public int update(Category category);   
       
    public List<Category> list();
      
}

<?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="com.how2java.mapper.CategoryMapper">
	    <insert id="add" parameterType="Category" >
	        insert into category_ ( name ) values (#{name})    
	    </insert>
	    
	    <delete id="delete" parameterType="Category" >
	        delete from category_ where id= #{id}   
	    </delete>
	    
	    <select id="get" parameterType="_int" resultType="Category">
	        select * from   category_  where id= #{id}    
	    </select>

	    <update id="update" parameterType="Category" >
	        update category_ set name=#{name} where id=#{id}    
	    </update>
	    <select id="list" resultType="Category">
	        select * from   category_      
	    </select>
	</mapper>

package com.how2java.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.support.PagedListHolder;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.how2java.pojo.Category;
import com.how2java.service.CategoryService;
import com.how2java.util.Page;

// 告诉spring mvc这是一个控制器类
@Controller
@RequestMapping("")
public class CategoryController {
	@Autowired
	CategoryService categoryService;

	@RequestMapping("listCategory")
	public ModelAndView listCategory(Page page){
		ModelAndView mav = new ModelAndView();
		PageHelper.offsetPage(page.getStart(),5);
		List<Category> cs= categoryService.list();
		int total = (int) new PageInfo<>(cs).getTotal();
		
		page.caculateLast(total);
		
		// 放入转发参数
		mav.addObject("cs", cs);
		// 放入jsp路径
		mav.setViewName("listCategory");
		return mav;
	}

}

package com.how2java.test;
 
import java.util.List;
 
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.how2java.mapper.CategoryMapper;
import com.how2java.pojo.Category;
import com.how2java.util.Page;
 
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class MybatisTest {
 
//    @Autowired
//    private CategoryMapper categoryMapper;
// 
////  @Test
//    public void testAdd() {
//        for (int i = 0; i < 100; i++) {
//            Category category = new Category();
//            category.setName("new Category");
//            categoryMapper.add(category);
//        }
// 
//    }
//     
//    @Test
//    public void testTotal() {
//        int total = categoryMapper.total();
//        System.out.println(total);
//    }
// 
//    @Test
//    public void testList() {
//        Page p = new Page();
//        p.setStart(2);
//        p.setCount(3);
//        List<Category> cs=categoryMapper.list(p);
//        for (Category c : cs) {
//            System.out.println(c.getName());
//        }
//    }
 
}