강원대 BE_전혜지 2주차 과제 (1단계)

README.md

@@ -1 +1,39 @@
-# spring-gift-wishlist
+# spring-gift-product
+KTC step2 클론코딩 선물하기 구현
+
+## Product 객체
+- **id** : 상품 id
+- **name** : 상품 이름
+- **price** : 상품 가격
+- **imageUrl** : 상품 사진 url
+
+## 기능 소개
+### ProductDao
+- **selectAllProduct** : 모든 상품 목록 List반환
+- **selectProduct** : id에 해당하는 상품 하나를 반환
+- **insertProduct** : 상품 추가
+- **deleteProduct** : 상품 삭제
+- **updateProduct** : 상품 수정
+
+### IndexController
+- **index** : index.html 연결
+- **postform** : postform.html 연결
+- **editform** : editform.html 연결
+
+### ProductController
+- **getProductsController** : 모든 상품 목록 List index.html로 반환
+- **getProductsListController** : 모든 상품 목록 List반환
+- **getProductByIdController** : id에 해당하는 상품 하나를 반환
+- **postProductController** : 상품 추가 후 index로 리다이렉트
+- **deleteProductController** : 상품 삭제 후 index로 리다이렉트
+- **updateProductController** : 상품 수정 후 index로 리다이렉트
+
+### CatchError
+- **isCorrectName** : 이름의 유효성을 검사한다
+- **isContainsKakao** : 이름에 Kakao가 포함되 있는지 검사한다
+-
+### 유효성
+- 클라이언트가 어떤 부분이 왜 잘못되었는지 인지할 수 있도록 응답제공
+- 상품 이름 : 공백포함 최대 15자
+- 특수 문자 : ( ), [ ], +, -, &, /, _ 이외 사용불가
+- "카카오"가 포함된 문구는 담당 MD와 협의한 경우에만 사용 가능

build.gradle

@@ -28,4 +28,4 @@ dependencies {
 
 tasks.named('test') {
     useJUnitPlatform()
-}
+}

src/main/java/gift/Controller/CatchError.java

@@ -0,0 +1,21 @@
+package gift.Controller;
+
+public class CatchError {
+    public static boolean isCorrectName(String name){
+        if(name.length()>15){
+            return false;
+        }
+        String letters = "()[]+-&/_ ";
+        for(int i=0; i<name.length(); i++){
+            char one = name.charAt(i);
+            if(!Character.isLetterOrDigit(one) && !letters.contains(Character.toString(one))){
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public static boolean isContainsKakao(String name){
+        return name.contains("카카오");
+    }
+}

src/main/java/gift/Controller/IndexController.java

@@ -0,0 +1,33 @@
+package gift.Controller;
+
+import gift.model.Product;
+import gift.model.ProductDao;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+@Controller
+public class IndexController {
+    private final ProductDao ProductDao;
+
+    public IndexController(gift.model.ProductDao productDao) {
+        ProductDao = productDao;
+    }
+
+    @GetMapping("/")
+    public String index() {
+        return "redirect:/api/getAllProducts";
+    }
+
+    @GetMapping("/postform")
+    public String postform(){
+        return "postform";
+    }
+
+    @PostMapping("/editform/{id}")
+    public String editform(@PathVariable Long id, Model model){
+        Product product = ProductDao.selectProduct(id);
+        model.addAttribute("product", product);
+        return "editform";
+    }
+}

src/main/java/gift/Controller/InitCreateTable.java

@@ -0,0 +1,38 @@
+package gift.Controller;
+
+import jakarta.annotation.PostConstruct;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Service;
+
+//app실행 했을 때 테이블 생성
+@Service
+public class InitCreateTable {
+
+    private final JdbcTemplate jdbcTemplate;
+
+    @Autowired
+    public InitCreateTable(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    @PostConstruct
+    public void init() {
+        //System.out.println("init");
+        createProductTable();
+        //System.out.println("create");
+    }
+
+    public void createProductTable() {
+        var sql = """
+            create table product (
+              id bigint auto_increment,
+              name varchar(255),
+              price int,
+              image_url varchar(255),
+              primary key (id)
+            )
+            """;
+        jdbcTemplate.execute(sql);
+    }
+}

src/main/java/gift/Controller/ProductController.java

@@ -0,0 +1,99 @@
+package gift.Controller;
+
+import gift.model.Product;
+import gift.model.ProductDao;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.ui.Model;
+import java.util.List;
+
+@Controller
+@RequestMapping("/api")
+public class ProductController {
+    long id = 0L;
+
+    private final ProductDao ProductDao;
+
+    public ProductController(gift.model.ProductDao productDao) {
+        ProductDao = productDao;
+    }
+
+    //모든 상품 반환
+    @GetMapping("/getAllProducts")
+    public String getProductsController(Model model) {
+        List<Product> productList = ProductDao.selectAllProduct();
+        model.addAttribute("productList", productList);
+        return "index";
+    }
+
+    @GetMapping("/getAllProductList")
+    @ResponseBody
+    public List<Product> getProductsListController(Model model) {
+        List<Product> productList = ProductDao.selectAllProduct();
+        return productList;
+    }
+
+    //id 상품 하나 반환
+    @GetMapping("/getProduct/{id}")
+    @ResponseBody
+    public Product getProductByIdController(@PathVariable Long id) {
+        Product product = ProductDao.selectProduct(id);
+        return product;
+    }
+
+    //상품 추가
+    @PostMapping("/postProduct")
+    public String postProductController(@ModelAttribute Product product) {
+        if (!CatchError.isCorrectName(product.getName())) {
+            throw new IllegalArgumentException("이름은 15자 이내, 특수문자는 (),[],+,-,&,/,_ 만 사용 가능합니다.");
+        }
+        if (CatchError.isContainsKakao(product.getName())) {
+            throw new IllegalArgumentException("\"카카오\"는 MD와 협의 후에 사용 가능합니다.");
+        }
+        id++;
+        product.setId(id);
+        ProductDao.insertProduct(product);
+        return "redirect:/api/getAllProducts";
+    }
+
+    //상품 삭제
+    @GetMapping("/deleteProduct/{id}")
+    public String deleteProductController(@PathVariable Long id) {
+        ProductDao.deleteProduct(id);
+        return "redirect:/api/getAllProducts";
+    }
+
+    //상품 업데이트
+    @PostMapping("/updateProduct/{id}")
+    public String updateProductController(@PathVariable Long id, @ModelAttribute Product newProduct) {
+        Product oldProduct = ProductDao.selectProduct(id);
+
+        if (!CatchError.isCorrectName(newProduct.getName())) {
+            throw new IllegalArgumentException("이름은 15자 이내, 특수문자는 (),[],+,-,&,/,_ 만 사용 가능합니다.");
+        }
+        if (CatchError.isContainsKakao(newProduct.getName())) {
+            throw new IllegalArgumentException("\"카카오\"는 MD와 협의 후에 사용 가능합니다.");
+        }
+
+        if (newProduct.getName() != null && !newProduct.getName().isEmpty()) {
+            oldProduct.setName(newProduct.getName());
+        }
+        if (newProduct.getPrice() != null) {
+            oldProduct.setPrice(newProduct.getPrice());
+        }
+        if (newProduct.getImageUrl() != null && !newProduct.getImageUrl().isEmpty()) {
+            oldProduct.setImageUrl(newProduct.getImageUrl());
+        }
+        ProductDao.updateProduct(oldProduct);
+        return "redirect:/api/getAllProducts";
+    }
+
+    //이름 오류 발생시 이유 리턴
+    @ResponseStatus(value = HttpStatus.BAD_REQUEST)
+    @ExceptionHandler(IllegalArgumentException.class)
+    public String handleIllegalArgumentException(IllegalArgumentException e, Model model) {
+        model.addAttribute("error", e.getMessage());
+        return "errorPage";
+    }
+}

src/main/java/gift/Controller/ProductExceptionHandler.java

@@ -0,0 +1,17 @@
+package gift.Controller;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+import java.util.NoSuchElementException;
+
+@ControllerAdvice
+public class ProductExceptionHandler {
+    @ResponseStatus(value = HttpStatus.NOT_FOUND)
+    @ExceptionHandler(NoSuchElementException.class)
+    public String handleNoSuchElementException(NoSuchElementException e){
+        return e.getMessage();
+    }
+}

src/main/java/gift/model/Product.java

@@ -0,0 +1,50 @@
+package gift.model;
+
+public class Product {
+    private long id;
+    private String name;
+    private Integer price;
+    private String imageUrl;
+
+    public Product(long id, String name, int price, String imageUrl) {
+        this.id = id;
+        this.name = name;
+        this.price = price;
+        this.imageUrl = imageUrl;
+    }
+
+    public Product() {
+    }
+
+    public String getImageUrl() {
+        return imageUrl;
+    }
+
+    public void setImageUrl(String imageUrl) {
+        this.imageUrl = imageUrl;
+    }
+
+    public Integer getPrice() {
+        return price;
+    }
+
+    public void setPrice(Integer price) {
+        this.price = price;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+}

src/main/java/gift/model/ProductDao.java

@@ -0,0 +1,74 @@
+package gift.model;
+
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.RowMapper;
+import org.springframework.stereotype.Repository;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Repository
+public class ProductDao {
+    private final JdbcTemplate jdbcTemplate;
+
+    public ProductDao(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    //상품 테이블 생성
+    public void createCustomerTable(){
+        var sql = """
+    create table customer (
+      id bigint,
+      name varchar(255),
+      price int,
+      image_url varchar(255),
+      primary key (id)
+    )
+    """;
+        jdbcTemplate.execute(sql); //여닫는 과정X, throws가 안나옴(내부에서 관리) excetion 추상화 해서 제공
+    }
+
+    //데이터베이스 반환결과인 Result Set 객체로 변환
+    public RowMapper<Product> ProductRowMapper() {
+        return ( (resultSet, rowNum) -> {
+            Product product = new Product();
+            product.setId(resultSet.getLong("id"));
+            product.setName(resultSet.getString("name"));
+            product.setPrice(resultSet.getInt("price"));
+            product.setImageUrl(resultSet.getString("image_url"));
+            return product;
+        });
+    }
+
+    //모든 상품 리스트 반환
+    public List<Product> selectAllProduct(){
+        var sql = "select * from product";
+        List<Product> list = new ArrayList<>();
+        return jdbcTemplate.query(sql, ProductRowMapper(), list.toArray());
+    }
+
+    //상품 하나 반환
+    public Product selectProduct(Long id){
+        var sql = "select id, name, price, image_url from product where id = ?";
+        return jdbcTemplate.queryForObject(sql, ProductRowMapper(), id);
+    }
+
+    //상품 추가
+    public void insertProduct(Product product){
+        var sql = "insert into product (id, name, price, image_url) values (?, ?, ?, ?)";
+        jdbcTemplate.update(sql, product.getId(), product.getName(), product.getPrice(), product.getImageUrl());
+    }
+
+    //상품 삭제
+    public void deleteProduct(Long id){
+        var sql = "delete from product where id = ?";
+        jdbcTemplate.update(sql, id);
+    }
+
+    //상품 업데이트
+    public void updateProduct(Product product){
+        var sql = "update product set name = ?, price = ?, image_url = ? where id = ?";
+        jdbcTemplate.update(sql, product.getName(), product.getPrice(), product.getImageUrl(), product.getId());
+    }
+}

src/main/resources/application.properties

@@ -1 +1,2 @@
 spring.application.name=spring-gift
+spring.h2.console.enabled=true