add goodsservice, searchgoods interface

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

+package com.example.freshonline.controller;
+
+import com.alibaba.fastjson.JSONObject;
+import com.example.freshonline.service.CategoryService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class CategoryController {
+    /**
+     * @author Josh Sun
+     * @return JSON
+     */
+    @GetMapping("/goods")
+    public JSONObject getCategoryTree(){
+        return new CategoryService().getCategoryTree();
+    }
+
+}

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

 package com.example.freshonline.controller;
 
+
+
 import com.example.freshonline.utils.ValidationChecker;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -26,32 +28,32 @@ public class GoodsController {
     @GetMapping("/goods")
     public String getSearchTest(@RequestParam(value = "price_low", required = false) String price_low_req,
                                 @RequestParam(value = "price_high", required = false) String price_high_req,
-                                @RequestParam(value = "brands", required = false) String brands,
+                                @RequestParam(value = "brands_id", required = false) String brands,
                                 @RequestParam(value = "sort_type", required = false) String sort_type_req,
                                 @RequestParam(value = "keyword", required = false) String keyword,
                                 @RequestParam(value = "page", required = false) String page_req,
                                 @RequestParam(value = "category_id", required = false) String category_id_req){
-        StringBuffer test = new StringBuffer();
+        StringBuilder test = new StringBuilder();
         ValidationChecker vc = new ValidationChecker();
 
         Integer MIN_PRICE = 0, MAX_PRICE = 10000;
         Integer price_low = vc.str2int(price_low_req, MIN_PRICE);
         Integer price_high = vc.str2int(price_high_req, MAX_PRICE);
-        test.append("price_low=" + price_low);
-        test.append(",price_high=" + price_high);
+        test.append("price_low=").append(price_low);
+        test.append(",price_high=").append(price_high);
 
-        test.append(",brands=" + brands);
+        test.append(",brands=").append(brands);
 
         Integer sort_type = vc.str2int(sort_type_req, 0);
-        test.append(",sort_type=" + sort_type);
+        test.append(",sort_type=").append(sort_type);
 
-        test.append(",keyword=" + keyword);
+        test.append(",keyword=").append(keyword);
 
         Integer page = vc.str2int(page_req, 1);
-        test.append(",page=" + page);
+        test.append(",page=").append(page);
 
         Integer category_id = vc.str2int(category_id_req, 0);
-        test.append(",category_id=" + category_id);
+        test.append(",category_id=").append(category_id);
 
         return test.toString();
     }

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

+package com.example.freshonline.service;
+
+import com.alibaba.fastjson.JSONObject;
+
+/**
+ * @author Josh Sun
+ */
+public class CategoryService {
+
+    /**
+     * @author Josh Sun
+     * @return JSON
+     */
+    public JSONObject getCategoryTree(){
+        JSONObject output = new JSONObject();
+
+
+        return output;
+    }
+}

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

 package com.example.freshonline.service;
 
-/**
- * @author Josh Sun
- */
+import com.alibaba.fastjson.JSONObject;
+import com.example.freshonline.model.StockedGoods;
+
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Properties;
+import java.sql.ResultSet;
+import java.util.List;
+
+
 public class GoodsService {
 
+    /**
+     * @author Josh Sun
+     * @param param
+     * @return
+     */
+    public List<StockedGoods> getSearch(JSONObject param){
+        try {
+            Class.forName("com.mysql.jdbc.Driver");
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+
+        Properties pros;
+        Connection conn = null;
+        try {
+            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"));
+        }
+        catch (Exception e){
+            e.printStackTrace();
+        }
+
+        List<StockedGoods> output = new ArrayList<>();
+        String sql_base = "select * from stocked_goods";
+        String sql_condition = "where true";
+
+        Integer price_low = param.getInteger("price_low");
+        if (price_low != null) {
+            sql_condition += " and price > " + price_low.toString();
+        }
+        Integer price_high = param.getInteger("price_high");
+        if (price_high != null) {
+            sql_condition += " and price < " + price_high.toString();
+        }
+        String brands = param.getString("brands").toString();
+        if (brands != null){
+            sql_condition += " and brands like %" + brands + "%";
+        }
+        Integer sort_type = param.getInteger("sort_type");
+        if (sort_type != null){
+            /**
+             * @TODO sort_type
+             */
+        }
+        Integer page = param.getInteger("page");
+        if (page != null){
+            /**
+             * @TODO 分页
+             */
+        }
+        Integer category_id = param.getInteger("category_id");
+        if (category_id != null){
+            sql_condition += " and category_id = " + category_id.toString();
+        }
+
+        String sql = sql_base + sql_condition;
+        try {
+            PreparedStatement ps = conn.prepareStatement(sql);
+            ResultSet result = ps.executeQuery();
+            while (result.next()) {
+                StockedGoods tmp = new StockedGoods();
+                tmp.setId(result.getInt("id"));
+                tmp.setName(result.getString("name"));
+                /**
+                 * @TODO Type is a String? or TinyInt?
+                 */
+                tmp.setType(result.getString("type"));
+                tmp.setPrice(result.getBigDecimal("price"));
+                tmp.setStorage(result.getBigDecimal("storage"));
+                tmp.setSales(result.getBigDecimal("sales"));
+                tmp.setDescription(result.getString("description"));
+                /**
+                 * Byte vs TinyInt
+                 */
+                tmp.setOnsale(result.getByte("onsale"));
+                tmp.setBrand(result.getString("brand"));
+                tmp.setCategoryId(result.getInt("category_id"));
+                /**
+                 * Byte vs TinyInt
+                 */
+                tmp.setIsNew(result.getByte("is_new"));
+                tmp.setPic(result.getString("pic"));
+                /**
+                 * sale_price, rate, rate_count not included
+                 */
+                output.add(tmp);
+            }
+            result.close();
+            ps.close();
+            conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        return output;
+    }
+
 }

src/main/resources/application.properties

@@ -4,5 +4,5 @@
 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=123456
 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource