diff --git a/springboot_08_ssmp/src/main/java/com/yv/admain/Book.java b/springboot_08_ssmp/src/main/java/com/yv/admain/Book.java
index f885c7d..bbcf8d4 100644
--- a/springboot_08_ssmp/src/main/java/com/yv/admain/Book.java
+++ b/springboot_08_ssmp/src/main/java/com/yv/admain/Book.java
@@ -8,7 +8,6 @@ import lombok.Data;
  *
  * lombok
  */
-
 @Data
 public class Book {
     private int id;
diff --git a/springboot_08_ssmp/src/main/java/com/yv/service/IBookService.java b/springboot_08_ssmp/src/main/java/com/yv/service/IBookService.java
index fcbf2a4..73a1eaa 100644
--- a/springboot_08_ssmp/src/main/java/com/yv/service/IBookService.java
+++ b/springboot_08_ssmp/src/main/java/com/yv/service/IBookService.java
@@ -1,5 +1,6 @@
 package com.yv.service;
 
+import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.yv.admain.Book;
 
@@ -9,4 +10,13 @@ import com.yv.admain.Book;
  */
 public interface IBookService extends IService<Book> {
 
+    boolean saveBook(Book book);
+
+    boolean modify(Book book);
+
+    boolean delete(Integer id);
+
+    IPage<Book> getPage(int currentPage, int pageSize);
+
+    IPage<Book> getPage(int currentPage, int pageSize, Book book);
 }
diff --git a/springboot_08_ssmp/src/main/java/com/yv/service/impl/BookServiceImpl.java b/springboot_08_ssmp/src/main/java/com/yv/service/impl/BookServiceImpl.java
index 651b70f..ec24526 100644
--- a/springboot_08_ssmp/src/main/java/com/yv/service/impl/BookServiceImpl.java
+++ b/springboot_08_ssmp/src/main/java/com/yv/service/impl/BookServiceImpl.java
@@ -1,9 +1,14 @@
 package com.yv.service.impl;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.yv.admain.Book;
 import com.yv.dao.BookDao;
 import com.yv.service.IBookService;
+import org.apache.logging.log4j.util.Strings;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 /**
@@ -12,4 +17,40 @@ import org.springframework.stereotype.Service;
  */
 @Service
 public class BookServiceImpl extends ServiceImpl<BookDao, Book> implements IBookService {
+
+    @Autowired
+    private BookDao bookDao;
+
+    @Override
+    public boolean saveBook(Book book) {
+        return bookDao.insert(book) > 0;
+    }
+
+    @Override
+    public boolean modify(Book book) {
+        return bookDao.updateById(book) > 0;
+    }
+
+    @Override
+    public boolean delete(Integer id) {
+        return bookDao.deleteById(id) > 0;
+    }
+
+    @Override
+    public IPage<Book> getPage(int currentPage, int pageSize) {
+        IPage page = new Page(currentPage,pageSize);
+        bookDao.selectPage(page,null);
+        return page;
+    }
+
+    @Override
+    public IPage<Book> getPage(int currentPage, int pageSize, Book book) {
+        LambdaQueryWrapper<Book> lqw = new LambdaQueryWrapper<Book>();
+        lqw.like(Strings.isNotEmpty(book.getType()),Book::getType,book.getType());
+        lqw.like(Strings.isNotEmpty(book.getName()),Book::getName,book.getName());
+        lqw.like(Strings.isNotEmpty(book.getDescription()),Book::getDescription,book.getDescription());
+        IPage page = new Page(currentPage,pageSize);
+        bookDao.selectPage(page,lqw);
+        return page;
+    }
 }