Initial commit

springboot_08_ssmp/src/main/java/com/yv/service/BookService.java

@@ -1,5 +1,6 @@
 package com.yv.service;
 
+import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.yv.admain.Book;
 
 import java.util.List;
@@ -38,4 +39,10 @@ public interface BookService {
      */
     List<Book> getAll();
 
+    /**
+     * @param currentPage
+     * @param pageSize
+     * @return
+     */
+    IPage<Book> getPage(int currentPage, int pageSize);
 }

springboot_08_ssmp/src/main/java/com/yv/service/IBookService.java

@@ -0,0 +1,12 @@
+package com.yv.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.yv.admain.Book;
+
+/**
+ * @author YoVinchen
+ * @date 2023/3/17 上午 10:51
+ */
+public interface IBookService extends IService<Book> {
+
+}

springboot_08_ssmp/src/main/java/com/yv/service/impl/BookServiceImpl.java

@@ -1,45 +1,15 @@
 package com.yv.service.impl;
 
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.yv.admain.Book;
 import com.yv.dao.BookDao;
-import com.yv.service.BookService;
+import com.yv.service.IBookService;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-import java.util.List;
-
 /**
  * @author YoVinchen
- * @date 2023/3/15 下午 10:42
+ * @date 2023/3/17 上午 11:13
  */
 @Service
-public class BookServiceImpl implements BookService {
+public class BookServiceImpl extends ServiceImpl<BookDao, Book> implements IBookService {
-
-    @Autowired
-    private BookDao bookDao;
-
-    @Override
-    public Boolean save(Book book) {
-        return bookDao.insert(book) > 0;
-    }
-
-    @Override
-    public Boolean update(Book book) {
-        return bookDao.updateById(book) > 0;
-    }
-
-    @Override
-    public Boolean delete(Integer id) {
-        return bookDao.deleteById(id) > 0;
-    }
-
-    @Override
-    public Book getById(Integer id) {
-        return bookDao.selectById(id);
-    }
-
-    @Override
-    public List<Book> getAll() {
-        return bookDao.selectList(null);
-    }
 }

springboot_08_ssmp/src/main/java/com/yv/service/impl/BookServiceImpl2.java

@@ -0,0 +1,55 @@
+package com.yv.service.impl;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.yv.admain.Book;
+import com.yv.dao.BookDao;
+import com.yv.service.BookService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * @author YoVinchen
+ * @date 2023/3/15 下午 10:42
+ */
+@Service
+public class BookServiceImpl2 implements BookService {
+
+    @Autowired
+    private BookDao bookDao;
+
+    @Override
+    public Boolean save(Book book) {
+        return bookDao.insert(book) > 0;
+    }
+
+    @Override
+    public Boolean update(Book book) {
+        return bookDao.updateById(book) > 0;
+    }
+
+    @Override
+    public Boolean delete(Integer id) {
+        return bookDao.deleteById(id) > 0;
+    }
+
+    @Override
+    public Book getById(Integer id) {
+        return bookDao.selectById(id);
+    }
+
+    @Override
+    public List<Book> getAll() {
+        return bookDao.selectList(null);
+    }
+
+    @Override
+    public IPage getPage(int currentPage, int pageSize) {
+        IPage page = new Page(currentPage, pageSize);
+        return bookDao.selectPage(page, null);
+    }
+
+
+}

springboot_08_ssmp/src/test/java/com/yv/service/BookServiceTeat.java

@@ -0,0 +1,66 @@
+package com.yv.service;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.yv.admain.Book;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+/**
+ * @author YoVinchen
+ * @date 2023/3/17 上午 10:58
+ */
+@SpringBootTest
+public class BookServiceTeat {
+
+
+    @Autowired
+    private IBookService bookService;
+
+    @Test
+    void testGetById() {
+        System.out.println(bookService.getById(4));
+    }
+
+    @Test
+    void testSave() {
+        Book book = new Book();
+        book.setType("测试数据123");
+        book.setName("测试数据123");
+        book.setDescription("测试数据123");
+        bookService.save(book);
+    }
+
+    @Test
+    void testUpdate() {
+        Book book = new Book();
+        book.setId(15);
+        book.setType("测试数据123");
+        book.setName("测试数据123");
+        book.setDescription("测试数据123");
+        bookService.updateById(book);
+    }
+
+    @Test
+    void testDelete() {
+        bookService.removeById(15);
+    }
+
+    @Test
+    void testGetAll() {
+        bookService.list();
+    }
+
+    @Test
+    void testGetPage() {
+        IPage<Book> page = new Page<Book>(2, 5);
+        bookService.page(page);
+        System.out.println(page.getCurrent());
+        System.out.println(page.getSize());
+        System.out.println(page.getTotal());
+        System.out.println(page.getPages());
+        System.out.println(page.getRecords());
+    }
+
+}

springboot_08_ssmp/src/test/java/com/yv/service/BookServiceTeatCase.java

@@ -0,0 +1,64 @@
+package com.yv.service;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.yv.admain.Book;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+/**
+ * @author YoVinchen
+ * @date 2023/3/17 上午 10:58
+ */
+@SpringBootTest
+public class BookServiceTeatCase {
+
+
+    @Autowired
+    private BookService bookService;
+
+    @Test
+    void testGetById(){
+        System.out.println(bookService.getById(4));
+    }
+
+    @Test
+    void testSave(){
+        Book book = new Book();
+        book.setType("测试数据123");
+        book.setName("测试数据123");
+        book.setDescription("测试数据123");
+        bookService.save(book);
+    }
+
+    @Test
+    void testUpdate(){
+        Book book = new Book();
+        book.setId(15);
+        book.setType("测试数据abcdefg");
+        book.setName("测试数据123");
+        book.setDescription("测试数据123");
+        bookService.update(book);
+    }
+
+    @Test
+    void testDelete(){
+        bookService.delete(15);
+    }
+
+    @Test
+    void testGetAll(){
+        bookService.getAll();
+    }
+
+    @Test
+    void testGetPage(){
+        IPage<Book> page = bookService.getPage(2, 5);
+        System.out.println(page.getCurrent());
+        System.out.println(page.getSize());
+        System.out.println(page.getTotal());
+        System.out.println(page.getPages());
+        System.out.println(page.getRecords());
+    }
+
+}