• 关联关系映射

    目录

    一、一对多

    二、多对多

    一、一对多


    首先先用逆向生成工具生成t_hibernate_order、t_hibernate_order_item这两张表对应的model与mapper

    generatorConfig.xml 

    1.    <table schema="" tableName="t_hibernate_order" domainObjectName="Order"
    2.                enableCountByExample="false" enableDeleteByExample="false"
    3.                enableSelectByExample="false" enableUpdateByExample="false">
    4.         table>
    5.  
    6.         <table schema="" tableName="t_hibernate_order_item" domainObjectName="OrderItem"
    7.                enableCountByExample="false" enableDeleteByExample="false"
    8.                enableSelectByExample="false" enableUpdateByExample="false">
    9.         table>

     vo类

    view object：视图对象

    OrderVo.java

    1. package com.maomao.ssm.model.vo;
    2.  
    3. import com.maomao.ssm.model.Order;
    4. import com.maomao.ssm.model.OrderItem;
    5.  
    6. import java.util.List;
    7.  
    8. /**
    9.  * vo类不仅仅包含当前表的信息，还能够包含相关联表的信息
    10.  *
    11.  * 当前订单会有一个或者多个订单项，多个订单项必须用集合进行接收
    12.  */
    13. public class OrderVo extends Order {
    14. //通过订单号查询本次订单的详细信息及对应的所哟普订单信息
    15.     private List orderItems;
    16.  
    17.     public List getOrderItems() {
    18.         return orderItems;
    19.     }
    20.  
    21.     public void setOrderItems(List orderItems) {
    22.         this.orderItems = orderItems;
    23.     }
    24. }

    OrderMapper.xml 

    1. "1.0" encoding="UTF-8" ?>
    2. mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
    3. <mapper namespace="com.maomao.ssm.mapper.OrderMapper" >
    4.   <resultMap id="BaseResultMap" type="com.maomao.ssm.model.Order" >
    5.     <constructor >
    6.       <idArg column="order_id" jdbcType="INTEGER" javaType="java.lang.Integer" />
    7.       <arg column="order_no" jdbcType="VARCHAR" javaType="java.lang.String" />
    8.     constructor>
    9.   resultMap>
    10.   <sql id="Base_Column_List" >
    11.     order_id, order_no
    12.   sql>
    13.  
    14.   <resultMap id="OrderVoMap" type="com.maomao.ssm.model.vo.OrderVo" >
    15.      <result column="order_id" property="orderId">result>
    16.      <result column="order_no" property="orderNo">result>
    17.     <collection property="orderItems" ofType="com.maomao.ssm.model.vo.OrderItemVo">
    18.       <result column="order_item_id" property="orderItemId">result>
    19.       <result column="product_id" property="productId">result>
    20.       <result column="quantity" property="quantity">result>
    21.       <result column="oid" property="oid">result>
    22.     collection>
    23.   resultMap>
    24.  
    25.   <select id="quryOrderVoByOrderId" resultMap="OrderVoMap" parameterType="java.lang.Integer" >
    26.     select * from t_hibernate_order o,t_hibernate_order_item oi
    27.   where o.order_id=oi.oid and o.order_id=#{orderId}
    28.   select>
    29.  
    30.   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    31.     select 
    32.     <include refid="Base_Column_List" />
    33.     from t_hibernate_order
    34.     where order_id = #{orderId,jdbcType=INTEGER}
    35.   select>
    36.   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    37.     delete from t_hibernate_order
    38.     where order_id = #{orderId,jdbcType=INTEGER}
    39.   delete>
    40.   <insert id="insert" parameterType="com.maomao.ssm.model.Order" >
    41.     insert into t_hibernate_order (order_id, order_no)
    42.     values (#{orderId,jdbcType=INTEGER}, #{orderNo,jdbcType=VARCHAR})
    43.   insert>
    44.   <insert id="insertSelective" parameterType="com.maomao.ssm.model.Order" >
    45.     insert into t_hibernate_order
    46.     <trim prefix="(" suffix=")" suffixOverrides="," >
    47.       <if test="orderId != null" >
    48.         order_id,
    49.       if>
    50.       <if test="orderNo != null" >
    51.         order_no,
    52.       if>
    53.     trim>
    54.     <trim prefix="values (" suffix=")" suffixOverrides="," >
    55.       <if test="orderId != null" >
    56.         #{orderId,jdbcType=INTEGER},
    57.       if>
    58.       <if test="orderNo != null" >
    59.         #{orderNo,jdbcType=VARCHAR},
    60.       if>
    61.     trim>
    62.   insert>
    63.   <update id="updateByPrimaryKeySelective" parameterType="com.maomao.ssm.model.Order" >
    64.     update t_hibernate_order
    65.     <set >
    66.       <if test="orderNo != null" >
    67.         order_no = #{orderNo,jdbcType=VARCHAR},
    68.       if>
    69.     set>
    70.     where order_id = #{orderId,jdbcType=INTEGER}
    71.   update>
    72.   <update id="updateByPrimaryKey" parameterType="com.maomao.ssm.model.Order" >
    73.     update t_hibernate_order
    74.     set order_no = #{orderNo,jdbcType=VARCHAR}
    75.     where order_id = #{orderId,jdbcType=INTEGER}
    76.   update>
    77. mapper>

    OrderBiz.java 

    1. package com.maomao.ssm.biz;
    2.  
    3. import com.maomao.ssm.model.Order;
    4. import com.maomao.ssm.model.vo.OrderVo;
    5. import org.apache.ibatis.annotations.Param;
    6.  
    7. public interface OrderBiz {
    8.     int deleteByPrimaryKey(Integer orderId);
    9.  
    10.     int insert(Order record);
    11.  
    12.     int insertSelective(Order record);
    13.  
    14.     Order selectByPrimaryKey(Integer orderId);
    15.  
    16.     OrderVo quryOrderVoByOrderId(Integer orderId);
    17.  
    18.     int updateByPrimaryKeySelective(Order record);
    19.  
    20.     int updateByPrimaryKey(Order record);
    21. }

    OrderBizImpl.java 

    1. package com.maomao.ssm.biz;
    2.  
    3. import com.maomao.ssm.mapper.OrderMapper;
    4. import com.maomao.ssm.model.Order;
    5. import com.maomao.ssm.model.vo.OrderVo;
    6. import org.springframework.beans.factory.annotation.Autowired;
    7. import org.springframework.stereotype.Service;
    8.  
    9. @Service
    10. public class OrderBizImpl implements OrderBiz {
    11.     @Autowired
    12.     private OrderMapper orderMapper;
    13.  
    14.     @Override
    15.     public int deleteByPrimaryKey(Integer orderId) {
    16.         return 0;
    17.     }
    18.  
    19.     @Override
    20.     public int insert(Order record) {
    21.         return 0;
    22.     }
    23.  
    24.     @Override
    25.     public int insertSelective(Order record) {
    26.         return 0;
    27.     }
    28.  
    29.     @Override
    30.     public Order selectByPrimaryKey(Integer orderId) {
    31.         return null;
    32.     }
    33.  
    34.     @Override
    35.     public OrderVo quryOrderVoByOrderId(Integer orderId) {
    36.         return orderMapper.quryOrderVoByOrderId(orderId);
    37.     }
    38.  
    39.     @Override
    40.     public int updateByPrimaryKeySelective(Order record) {
    41.         return 0;
    42.     }
    43.  
    44.     @Override
    45.     public int updateByPrimaryKey(Order record) {
    46.         return 0;
    47.     }
    48. }

    OrderBizImpl.java 

    1. package com.maomao.ssm.biz.impl;
    2.  
    3. import com.maomao.ssm.biz.OrderBiz;
    4. import com.maomao.ssm.model.Order;
    5. import com.maomao.ssm.model.vo.OrderVo;
    6. import org.junit.Test;
    7. import org.junit.runner.RunWith;
    8. import org.springframework.beans.factory.annotation.Autowired;
    9. import org.springframework.test.context.ContextConfiguration;
    10. import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    11.  
    12. import static org.junit.Assert.*;
    13.  
    14. @RunWith(SpringJUnit4ClassRunner.class)
    15. @ContextConfiguration(locations={"classpath:applicationContext-mybatis.xml"})
    16. public class OrderBizImplTest {
    17.     @Autowired
    18.     private OrderBiz orderBiz;
    19.  
    20.     @Test
    21.     public void quryOrderVoByOrderId() {
    22.         OrderVo order = orderBiz.quryOrderVoByOrderId(9);
    23.         System.out.println(order);
    24.         order.getOrderItems().forEach(System.out::println);
    25.     }
    26. }

     OrderItemVo.java

    jpa 关联映射jpa 关联映射jpa 关联映射
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    1. package com.maomao.ssm.model.vo;
    2.  
    3. import com.maomao.ssm.model.Order;
    4. import com.maomao.ssm.model.OrderItem;
    5.  
    6. /**
    7.  * 某一个订单项一定属于某个订单的
    8.  */
    9. public class OrderItemVo extends OrderItem {
    10.  
    11.     private Order order;
    12.  
    13.  
    14.  
    15.     public Order getOrder() {
    16.         return order;
    17.     }
    18.  
    19.     public void setOrder(Order order) {
    20.         this.order = order;
    21.     }
    22. }

     OrderitemMapper.xml

    1. "1.0" encoding="UTF-8" ?>
    2. mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
    3. <mapper namespace="com.maomao.ssm.mapper.OrderItemMapper" >
    4.   <resultMap id="BaseResultMap" type="com.maomao.ssm.model.OrderItem" >
    5.     <constructor >
    6.       <idArg column="order_item_id" jdbcType="INTEGER" javaType="java.lang.Integer" />
    7.       <arg column="product_id" jdbcType="INTEGER" javaType="java.lang.Integer" />
    8.       <arg column="quantity" jdbcType="INTEGER" javaType="java.lang.Integer" />
    9.       <arg column="oid" jdbcType="INTEGER" javaType="java.lang.Integer" />
    10.     constructor>
    11.   resultMap>
    12.   <sql id="Base_Column_List" >
    13.     order_item_id, product_id, quantity, oid
    14.   sql>
    15.  
    16.   <resultMap id="OrderItemVoMap" type="com.maomao.ssm.model.vo.OrderItemVo" >
    17.     <result column="order_item_id" property="orderItemId">result>
    18.     <result column="product_id" property="productId">result>
    19.     <result column="quantity" property="quantity">result>
    20.     <result column="oid" property="oid">result>
    21.     <collection property="order" javaType="com.maomao.ssm.model.Order">
    22.       <result column="order_id" property="orderId">result>
    23.       <result column="order_no" property="orderNo">result>
    24.     collection>
    25.   resultMap>
    26.  
    27.   <select id="queryOrderItemVoByOrderItemId" resultMap="OrderItemVoMap" parameterType="java.lang.Integer" >
    28.     select * from t_hibernate_order o,t_hibernate_order_item oi
    29.   where o.order_id=oi.oid and oi.order_item_id=#{orderItemId}
    30.   select>
    31.  
    32.   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    33.     select 
    34.     <include refid="Base_Column_List" />
    35.     from t_hibernate_order_item
    36.     where order_item_id = #{orderItemId,jdbcType=INTEGER}
    37.   select>
    38.   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    39.     delete from t_hibernate_order_item
    40.     where order_item_id = #{orderItemId,jdbcType=INTEGER}
    41.   delete>
    42.   <insert id="insert" parameterType="com.maomao.ssm.model.OrderItem" >
    43.     insert into t_hibernate_order_item (order_item_id, product_id, quantity, 
    44.       oid)
    45.     values (#{orderItemId,jdbcType=INTEGER}, #{productId,jdbcType=INTEGER}, #{quantity,jdbcType=INTEGER}, 
    46.       #{oid,jdbcType=INTEGER})
    47.   insert>
    48.   <insert id="insertSelective" parameterType="com.maomao.ssm.model.OrderItem" >
    49.     insert into t_hibernate_order_item
    50.     <trim prefix="(" suffix=")" suffixOverrides="," >
    51.       <if test="orderItemId != null" >
    52.         order_item_id,
    53.       if>
    54.       <if test="productId != null" >
    55.         product_id,
    56.       if>
    57.       <if test="quantity != null" >
    58.         quantity,
    59.       if>
    60.       <if test="oid != null" >
    61.         oid,
    62.       if>
    63.     trim>
    64.     <trim prefix="values (" suffix=")" suffixOverrides="," >
    65.       <if test="orderItemId != null" >
    66.         #{orderItemId,jdbcType=INTEGER},
    67.       if>
    68.       <if test="productId != null" >
    69.         #{productId,jdbcType=INTEGER},
    70.       if>
    71.       <if test="quantity != null" >
    72.         #{quantity,jdbcType=INTEGER},
    73.       if>
    74.       <if test="oid != null" >
    75.         #{oid,jdbcType=INTEGER},
    76.       if>
    77.     trim>
    78.   insert>
    79.   <update id="updateByPrimaryKeySelective" parameterType="com.maomao.ssm.model.OrderItem" >
    80.     update t_hibernate_order_item
    81.     <set >
    82.       <if test="productId != null" >
    83.         product_id = #{productId,jdbcType=INTEGER},
    84.       if>
    85.       <if test="quantity != null" >
    86.         quantity = #{quantity,jdbcType=INTEGER},
    87.       if>
    88.       <if test="oid != null" >
    89.         oid = #{oid,jdbcType=INTEGER},
    90.       if>
    91.     set>
    92.     where order_item_id = #{orderItemId,jdbcType=INTEGER}
    93.   update>
    94.   <update id="updateByPrimaryKey" parameterType="com.maomao.ssm.model.OrderItem" >
    95.     update t_hibernate_order_item
    96.     set product_id = #{productId,jdbcType=INTEGER},
    97.       quantity = #{quantity,jdbcType=INTEGER},
    98.       oid = #{oid,jdbcType=INTEGER}
    99.     where order_item_id = #{orderItemId,jdbcType=INTEGER}
    100.   update>
    101. mapper>

    OrderitemBiz.java 

    1. package com.maomao.ssm.biz;
    2.  
    3. import com.maomao.ssm.mapper.OrderMapper;
    4. import com.maomao.ssm.model.Order;
    5. import com.maomao.ssm.model.vo.OrderVo;
    6. import org.springframework.beans.factory.annotation.Autowired;
    7. import org.springframework.stereotype.Service;
    8.  
    9. @Service
    10. public class OrderBizImpl implements OrderBiz {
    11.     @Autowired
    12.     private OrderMapper orderMapper;
    13.  
    14.     @Override
    15.     public int deleteByPrimaryKey(Integer orderId) {
    16.         return 0;
    17.     }
    18.  
    19.     @Override
    20.     public int insert(Order record) {
    21.         return 0;
    22.     }
    23.  
    24.     @Override
    25.     public int insertSelective(Order record) {
    26.         return 0;
    27.     }
    28.  
    29.     @Override
    30.     public Order selectByPrimaryKey(Integer orderId) {
    31.         return null;
    32.     }
    33.  
    34.     @Override
    35.     public OrderVo quryOrderVoByOrderId(Integer orderId) {
    36.         return orderMapper.quryOrderVoByOrderId(orderId);
    37.     }
    38.  
    39.     @Override
    40.     public int updateByPrimaryKeySelective(Order record) {
    41.         return 0;
    42.     }
    43.  
    44.     @Override
    45.     public int updateByPrimaryKey(Order record) {
    46.         return 0;
    47.     }
    48. }

    OrderitemBizImpl.java 

    1. package com.maomao.ssm.biz.impl;
    2.  
    3. import com.maomao.ssm.biz.OrderItemBiz;
    4. import com.maomao.ssm.mapper.OrderItemMapper;
    5. import com.maomao.ssm.model.OrderItem;
    6. import com.maomao.ssm.model.vo.OrderItemVo;
    7. import org.springframework.beans.factory.annotation.Autowired;
    8. import org.springframework.stereotype.Service;
    9.  
    10. @Service
    11. public class OrderItemBizImpl implements OrderItemBiz {
    12.     @Autowired
    13.     private OrderItemMapper orderItemMapper;
    14.  
    15.     @Override
    16.     public int deleteByPrimaryKey(Integer orderItemId) {
    17.         return 0;
    18.     }
    19.  
    20.     @Override
    21.     public int insert(OrderItem record) {
    22.         return 0;
    23.     }
    24.  
    25.     @Override
    26.     public int insertSelective(OrderItem record) {
    27.         return 0;
    28.     }
    29.  
    30.     @Override
    31.     public OrderItem selectByPrimaryKey(Integer orderItemId) {
    32.         return null;
    33.     }
    34.  
    35.     @Override
    36.     public OrderItemVo queryOrderItemVoByOrderItemId(Integer orderItemId) {
    37.         return orderItemMapper.queryOrderItemVoByOrderItemId(orderItemId);
    38.     }
    39.  
    40.     @Override
    41.     public int updateByPrimaryKeySelective(OrderItem record) {
    42.         return 0;
    43.     }
    44.  
    45.     @Override
    46.     public int updateByPrimaryKey(OrderItem record) {
    47.         return 0;
    48.     }
    49. }

     OrderitemBizImplTest.java 

    1. package com.maomao.ssm.biz.impl;
    2.  
    3. import com.maomao.ssm.biz.OrderItemBiz;
    4. import com.maomao.ssm.model.vo.OrderItemVo;
    5. import org.junit.Test;
    6. import org.junit.runner.RunWith;
    7. import org.springframework.beans.factory.annotation.Autowired;
    8. import org.springframework.test.context.ContextConfiguration;
    9. import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    10.  
    11. import static org.junit.Assert.*;
    12.  
    13. @RunWith(SpringJUnit4ClassRunner.class)
    14. @ContextConfiguration(locations={"classpath:applicationContext-mybatis.xml"})
    15. public class OrderItemBizImplTest {
    16.     @Autowired
    17.     private OrderItemBiz orderItemBiz;
    18.  
    19.     @Test
    20.     public void queryOrderItemVoByOrderItemId() {
    21.         OrderItemVo orderItemVo = orderItemBiz.queryOrderItemVoByOrderItemId(43);
    22.         System.out.println(orderItemVo);
    23.     }
    24. }

    collection：一对多的一方，对应关联属性ofType
    Association:一对多的多方，对应关联属性javaType  

    Spring+Hibernate 多对多关联映射---教师与学生表的级联增删改查
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    二、多对多

    首先先用逆向生成工具生成t_hibernate_book、t_hibernate_book_category、t_hibernate_category，这两张表对应的model与mapper

    HbookMapper.xml

    1. "1.0" encoding="UTF-8" ?>
    2. mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
    3. <mapper namespace="com.maomao.mapper.HbookMapper" >
    4.   <resultMap id="BaseResultMap" type="com.maomao.model.Hbook" >
    5.     <constructor >
    6.       <idArg column="book_id" jdbcType="INTEGER" javaType="java.lang.Integer" />
    7.       <arg column="book_name" jdbcType="VARCHAR" javaType="java.lang.String" />
    8.       <arg column="price" jdbcType="REAL" javaType="java.lang.Float" />
    9.     constructor>
    10.   resultMap>
    11.   <sql id="Base_Column_List" >
    12.     book_id, book_name, price
    13.   sql>
    14.   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    15.     select 
    16.     <include refid="Base_Column_List" />
    17.     from t_hibernate_book
    18.     where book_id = #{bookId,jdbcType=INTEGER}
    19.   select>
    20.   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    21.     delete from t_hibernate_book
    22.     where book_id = #{bookId,jdbcType=INTEGER}
    23.   delete>
    24.   <insert id="insert" parameterType="com.maomao.model.Hbook" >
    25.     insert into t_hibernate_book (book_id, book_name, price
    26.       )
    27.     values (#{bookId,jdbcType=INTEGER}, #{bookName,jdbcType=VARCHAR}, #{price,jdbcType=REAL}
    28.       )
    29.   insert>
    30.   <insert id="insertSelective" parameterType="com.maomao.model.Hbook" >
    31.     insert into t_hibernate_book
    32.     <trim prefix="(" suffix=")" suffixOverrides="," >
    33.       <if test="bookId != null" >
    34.         book_id,
    35.       if>
    36.       <if test="bookName != null" >
    37.         book_name,
    38.       if>
    39.       <if test="price != null" >
    40.         price,
    41.       if>
    42.     trim>
    43.     <trim prefix="values (" suffix=")" suffixOverrides="," >
    44.       <if test="bookId != null" >
    45.         #{bookId,jdbcType=INTEGER},
    46.       if>
    47.       <if test="bookName != null" >
    48.         #{bookName,jdbcType=VARCHAR},
    49.       if>
    50.       <if test="price != null" >
    51.         #{price,jdbcType=REAL},
    52.       if>
    53.     trim>
    54.   insert>
    55.   <update id="updateByPrimaryKeySelective" parameterType="com.maomao.model.Hbook" >
    56.     update t_hibernate_book
    57.     <set >
    58.       <if test="bookName != null" >
    59.         book_name = #{bookName,jdbcType=VARCHAR},
    60.       if>
    61.       <if test="price != null" >
    62.         price = #{price,jdbcType=REAL},
    63.       if>
    64.     set>
    65.     where book_id = #{bookId,jdbcType=INTEGER}
    66.   update>
    67.   <update id="updateByPrimaryKey" parameterType="com.maomao.model.Hbook" >
    68.     update t_hibernate_book
    69.     set book_name = #{bookName,jdbcType=VARCHAR},
    70.       price = #{price,jdbcType=REAL}
    71.     where book_id = #{bookId,jdbcType=INTEGER}
    72.   update>
    73. mapper>

    HbookCategoryBiz.java 

    1. package com.maomao.biz;
    2.  
    3. import com.maomao.model.HbookCategory;
    4. import com.maomao.model.vo.CategoryVo;
    5. import com.maomao.model.vo.HbookVo;
    6.  
    7. public interface HbookCategoryBiz {
    8.  
    9.     int deleteByPrimaryKey(Integer bcid);
    10.  
    11.     int insert(HbookCategory record);
    12.  
    13.     int insertSelective(HbookCategory record);
    14.  
    15.     HbookCategory selectByPrimaryKey(Integer bcid);
    16.  
    17.     int updateByPrimaryKeySelective(HbookCategory record);
    18.  
    19.     int updateByPrimaryKey(HbookCategory record);
    20.  
    21.     HbookVo queryByBookId( Integer bookId);
    22.  
    23.     CategoryVo queryByCid( Integer cid);
    24.  
    25. }

    HbookCategoryBizImpl .java 

    1. package com.maomao.biz.impl;
    2.  
    3. import com.maomao.biz.HbookCategoryBiz;
    4. import com.maomao.mapper.HbookCategoryMapper;
    5. import com.maomao.model.HbookCategory;
    6. import com.maomao.model.vo.CategoryVo;
    7. import com.maomao.model.vo.HbookVo;
    8. import org.springframework.beans.factory.annotation.Autowired;
    9. import org.springframework.stereotype.Service;
    10.  
    11. @Service
    12. public class HbookCategoryBizImpl implements HbookCategoryBiz {
    13.     @Autowired
    14.     private HbookCategoryMapper hbookCategoryMapper;
    15.     
    16.     @Override
    17.     public HbookVo queryByBookId(Integer bookId) {
    18.         return hbookCategoryMapper.queryByBookId(bookId);
    19.     }
    20.  
    21.     @Override
    22.     public CategoryVo queryByCid(Integer cid) {
    23.         return hbookCategoryMapper.queryByCid(cid);
    24.     }
    25. }

    HbookCategoryBizImplTest.java  

    1. package com.maomao.biz.impl;
    2.  
    3. import com.maomao.biz.HbookCategoryBiz;
    4. import com.maomao.model.vo.CategoryVo;
    5. import com.maomao.model.vo.HbookVo;
    6. import org.junit.Test;
    7. import org.junit.runner.RunWith;
    8. import org.springframework.beans.factory.annotation.Autowired;
    9. import org.springframework.test.context.ContextConfiguration;
    10. import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    11.  
    12. import static org.junit.Assert.*;
    13.  
    14.  
    15. @RunWith(SpringJUnit4ClassRunner.class)
    16. @ContextConfiguration(locations={"classpath:applicationContext-mybatis.xml"})
    17.  
    18. public class HbookCategoryBizImplTest {
    19.     @Autowired
    20.     private HbookCategoryBiz hbookCategoryBiz;
    21.  
    22.     @Test
    23.     public void queryByBookId() {
    24.         HbookVo hbookVo =  hbookCategoryBiz.queryByBookId(8);
    25.         System.out.println(hbookVo);
    26.         hbookVo.getCategories().forEach(System.out::println);
    27.     }
    28.  
    29.     @Test
    30.     public void queryByCid() {
    31.         CategoryVo categoryVo = hbookCategoryBiz.queryByCid(8);
    32.         System.out.println(categoryVo);
    33.         categoryVo.getHbooks().forEach(System.out::println);
    34.  
    35.     }
    36. }

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  • 原文地址：https://blog.csdn.net/m12120426/article/details/126354231