GoodsCategoryAPI

src/main/java/com/example/freshonline/controller/GoodsController.java

@@ -4,16 +4,22 @@ package com.example.freshonline.controller;
 
 import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSON;
 import com.example.freshonline.constants.Constants;
 import com.example.freshonline.enums.respVerifyRule.VerifyRule;
 import com.example.freshonline.model.StockedGoods;
 import com.example.freshonline.service.GoodsService;
 import com.example.freshonline.utils.RespBuilder;
 import com.example.freshonline.utils.ValidationChecker;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
 
+import org.springframework.beans.factory.annotation.*;
+import org.springframework.web.bind.annotation.*;
+import com.example.freshonline.model.joined_tables.GoodsCategory;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * @author Josh Sun
@@ -21,7 +27,35 @@ import org.springframework.web.bind.annotation.RestController;
 @RestController
 public class GoodsController {
 
-    /**
+    @Autowired
+    private GoodsService goodsService;
+
+    @GetMapping("/goodsdetails/{goods_id}")
+    public JSONObject getGoodsDetails(@PathVariable("goods_id") String id) {
+        JSONObject res = new JSONObject();
+        try{
+            Integer goods_id = Integer.parseInt(id);
+            GoodsCategory gc = goodsService.goodsDetails(goods_id);
+            JSONObject data = (JSONObject) JSONObject.toJSON(gc);
+            res.put("code", 0);
+            res.put("data",data);
+            return res;
+        }
+        catch(Exception e){
+            StringWriter sw = new StringWriter();
+            PrintWriter pw = new PrintWriter(sw);
+            e.printStackTrace(pw);
+            
+            res.put("code", 1);
+            res.put("msg", sw.toString());
+            return res;
+
+        }
+
+        
+    }
+
+   /**
      * @author Josh Sun
      * @param price_low_req
      * @param price_high_req

src/main/java/com/example/freshonline/dao/CategoryMapper.java

@@ -3,18 +3,14 @@ package com.example.freshonline.dao;
 import com.example.freshonline.model.Category;
 import com.example.freshonline.model.CategoryExample;
 import java.util.List;
-
-import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
-import org.springframework.stereotype.Repository;
-
 
 public interface CategoryMapper {
     /**
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     long countByExample(CategoryExample example);
 
@@ -22,7 +18,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int deleteByExample(CategoryExample example);
 
@@ -30,7 +26,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int deleteByPrimaryKey(Integer id);
 
@@ -38,7 +34,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int insert(Category record);
 
@@ -46,7 +42,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int insertSelective(Category record);
 
@@ -54,7 +50,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     List<Category> selectByExample(CategoryExample example);
 
@@ -62,7 +58,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     Category selectByPrimaryKey(Integer id);
 
@@ -70,7 +66,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int updateByExampleSelective(@Param("record") Category record, @Param("example") CategoryExample example);
 
@@ -78,7 +74,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int updateByExample(@Param("record") Category record, @Param("example") CategoryExample example);
 
@@ -86,7 +82,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int updateByPrimaryKeySelective(Category record);
 
@@ -94,7 +90,7 @@ public interface CategoryMapper {
      * This method was generated by MyBatis Generator.
      * This method corresponds to the database table category
      *
-     * @mbg.generated Fri Jan 28 11:53:04 EST 2022
+     * @mbg.generated Thu Jan 27 22:18:17 EST 2022
      */
     int updateByPrimaryKey(Category record);
 }
\ No newline at end of file

src/main/java/com/example/freshonline/dao/GoodsCategoryMapper.java

+package com.example.freshonline.dao;
+import com.example.freshonline.model.joined_tables.GoodsCategory;
+
+public interface GoodsCategoryMapper {
+    GoodsCategory selectByGoodsID(Integer id);
+}
\ No newline at end of file

src/main/java/com/example/freshonline/model/StockedGoods.java

@@ -2,6 +2,7 @@ package com.example.freshonline.model;
 
 import java.math.BigDecimal;
 
+
 public class StockedGoods {
     /**
      *
@@ -497,4 +498,11 @@ public class StockedGoods {
     public void setDescription(String description) {
         this.description = description;
     }
+
+    
+    @Override
+    public String toString() {
+        // TODO Auto-generated method stub
+        return super.toString() + " "+ getName() + " " + getId() + " " + getDescription();
+    }
 }
\ No newline at end of file

src/main/java/com/example/freshonline/model/joined_tables/GoodsCategory.java

+package com.example.freshonline.model.joined_tables;
+
+import com.example.freshonline.model.Category;
+import com.example.freshonline.model.StockedGoods;
+
+public class GoodsCategory extends StockedGoods{
+    private Category cate1;
+    private Category cate2;
+    private Category cate3;
+    private int cateid;
+    
+    public GoodsCategory(Category cate1, Category cate2, Category cate3) {
+        this.cate1 = cate1;
+        this.cate2 = cate2;
+        this.cate3 = cate3;
+    }
+
+    public int getCateid() {
+        return cateid;
+    }
+
+    public void setCateid(int cateid) {
+        this.cateid = cateid;
+    }
+
+    public GoodsCategory() {
+        super();
+    }
+    public Category getcate1() {
+        return cate1;
+    }
+    public void setcate1(Category cate1) {
+        this.cate1 = cate1;
+    }
+    public Category getcate2() {
+        return cate2;
+    }
+    public void setcate2(Category cate2) {
+        this.cate2 = cate2;
+    }
+    public Category getcate3() {
+        return cate3;
+    }
+    public void setcate3(Category cate3) {
+        this.cate3 = cate3;
+    }
+    
+    @Override
+    public String toString() {
+        return super.toString() + "\n" + cateid + cate1;
+    }
+    
+}

src/main/java/com/example/freshonline/service/GoodsService.java

 package com.example.freshonline.service;
 
 import com.alibaba.druid.util.StringUtils;
+import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import com.example.freshonline.model.StockedGoods;
+import com.example.freshonline.utils.ResultSetJSONConverter;
+
+import org.springframework.beans.factory.annotation.*;
+import org.springframework.stereotype.Service;
+
+import com.example.freshonline.dao.GoodsCategoryMapper;
+import com.example.freshonline.model.joined_tables.GoodsCategory;
 
 import java.io.IOException;
 import java.math.BigDecimal;
@@ -13,10 +21,45 @@ import java.sql.SQLException;
 import java.util.*;
 import java.sql.ResultSet;
 
-
+@Service
 public class GoodsService {
 
     final BigDecimal MIN_PRICE = BigDecimal.valueOf(0), MAX_PRICE = BigDecimal.valueOf(10000);
+    
+    @Autowired
+    private GoodsCategoryMapper goodsCategoryMapper;
+
+
+
+    public GoodsCategory goodsDetails(Integer id) throws Exception{
+        GoodsCategory gc = goodsCategoryMapper.selectByGoodsID(id);
+        return gc;
+
+        // String sql = "SELECT good.*, cate1.id as id1, cate1.name as name1, cate2.id as id2, cate2.name as name2, cate3.id as id3, cate3.name as name3 "
+        // +"FROM " 
+        // +"stocked_goods as good " 
+        // +"inner join category as cate3 "
+        // +"on good.category_id = cate3.id "
+        // +"inner join category as cate2 "
+        // +"on cate3.parent_id = cate2.id "
+        // +"inner join category as cate1 "
+        // +"on cate2.parent_id = cate1.id "
+        // +"where good.id = "+id.toString()+"; ";
+
+        // Class.forName("com.mysql.cj.jdbc.Driver");
+        // Properties pros;
+        // Connection conn = null;
+        // pros = new Properties();
+        // pros.load(Thread.currentThread().getContextClassLoader().getResourceAsStream("application.properties"));
+        // Class.forName(pros.getProperty("spring.datasource.driver-class-name"));
+        // conn = DriverManager.getConnection(pros.getProperty("spring.datasource.url"), pros.getProperty("spring.datasource.username"), pros.getProperty("spring.datasource.password"));
+        // PreparedStatement ps = conn.prepareStatement(sql);
+        // ResultSet result = ps.executeQuery();
+        // return ResultSetJSONConverter.convert(result);
+    }
+
+
+
 
     /**
      * @author Josh Sun

src/main/java/com/example/freshonline/utils/ResultSetJSONConverter.java

+package com.example.freshonline.utils;
+
+import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSONObject;
+import java.sql.ResultSet;
+
+public class ResultSetJSONConverter {
+    public static JSONArray convert(ResultSet resultSet) throws Exception {
+ 
+        JSONArray jsonArray = new JSONArray();
+     
+        while (resultSet.next()) {
+     
+            int columns = resultSet.getMetaData().getColumnCount();
+            JSONObject obj = new JSONObject();
+     
+            for (int i = 0; i < columns; i++)
+                obj.put(resultSet.getMetaData().getColumnLabel(i + 1).toLowerCase(), resultSet.getObject(i + 1));
+     
+            jsonArray.add(obj);
+        }
+        return jsonArray;
+    }
+}

src/main/resources/application.properties

@@ -4,7 +4,7 @@
 spring.datasource.url=jdbc:mysql://localhost:3306/FreshOnline?useUnicode=true&characterEncoding=utf8&allowPublicKeyRetrieval=true&useSSL=false
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 spring.datasource.username=root
-spring.datasource.password=
+spring.datasource.password=Bin86087
 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
 mybatis.mapper-locations=classpath:mapper/*.xml
 mybatis.type-aliases-package=com.example.freshonline.dao
\ No newline at end of file

src/main/resources/mapper/GoodsCategoryMapper.xml

+<?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.example.freshonline.dao.GoodsCategoryMapper">
+  <resultMap id="selectByGoodsIDMap" type="com.example.freshonline.model.joined_tables.GoodsCategory">
+
+    <id column="id" jdbcType="INTEGER" property="id" />
+    <result column="name" jdbcType="VARCHAR" property="name" />
+    <result column="type" jdbcType="TINYINT" property="type" />
+    <result column="price" jdbcType="DECIMAL" property="price" />
+    <result column="storage" jdbcType="DECIMAL" property="storage" />
+    <result column="sales" jdbcType="DECIMAL" property="sales" />
+    <result column="onsale" jdbcType="TINYINT" property="onsale" />
+    <result column="sale_price" jdbcType="DECIMAL" property="salePrice" />
+    <result column="rate" jdbcType="DECIMAL" property="rate" />
+    <result column="rate_count" jdbcType="INTEGER" property="rateCount" />
+    <result column="brand" jdbcType="VARCHAR" property="brand" />
+    <result column="category_id" jdbcType="INTEGER" property="categoryId" />
+    <result column="is_new" jdbcType="TINYINT" property="isNew" />
+    <result column="pic" jdbcType="VARCHAR" property="pic" />
+    <result column="description" jdbcType="LONGVARCHAR" property="description" />
+    <result property="cateid" jdbcType="INTEGER" column="id1" />
+    <association property="cate1" javaType="com.example.freshonline.model.Category">
+      <id property="id" jdbcType="INTEGER" column="id1"/>
+      <result property="name" column="name1" />
+    </association>
+    <association property="cate2" javaType="com.example.freshonline.model.Category">
+      <id property="id" column="id2" />
+      <result property="name" column="name2" />
+    </association>
+    <association property="cate3" javaType="com.example.freshonline.model.Category">
+      <id property="id" column="id3"/>
+      <result property="name" column="name3"/>
+    </association>
+  </resultMap>
+
+  <select id="selectByGoodsID" parameterType="int" resultMap="selectByGoodsIDMap">
+    SELECT good.*, cate1.id as id1, cate1.name as name1, cate2.id as id2, cate2.name as name2, cate3.id as id3, cate3.name as name3 
+    FROM 
+    stocked_goods as good 
+    inner join category as cate3
+    on good.category_id = cate3.id
+    inner join category as cate2
+    on cate3.parent_id = cate2.id
+    inner join category as cate1
+    on cate2.parent_id = cate1.id
+    where good.id = #{id}
+  </select>
+
+</mapper>
\ No newline at end of file

src/test/java/com/example/freshonline/dao/GoodsCategoryTest.java

+package com.example.freshonline.dao;
+import org.junit.jupiter.api.Test;
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.stereotype.Component;
+import com.example.freshonline.model.joined_tables.GoodsCategory;
+import java.util.List;
+
+@SpringBootTest
+@MapperScan("com.example.freshonline.dao")
+public class GoodsCategoryTest {
+    
+    
+    @Autowired
+    private GoodsCategoryMapper goodsCategoryMapper;
+    
+    
+    @Test
+    public void test1(){
+        GoodsCategory a = goodsCategoryMapper.selectByGoodsID(1);
+        System.err.println(a);
+    }
+}