Springboot 使用JdbcTemplate

Springboot 使用JdbcTemplate

book

package com.draymonder.book.jdbc;

public class Book {

  private Integer id;

  private String name;

  private String author;

  @Override

  public String toString() {

    return "Book{" +

        "id=" + id +

        ", name='" + name + '\'' +

        ", author='" + author + '\'' +

        '}';

  }

  public Integer getId() {

    return id;

  }

  public void setId(Integer id) {

    this.id = id;

  }

  public String getName() {

    return name;

  }

  public void setName(String name) {

    this.name = name;

  }

  public String getAuthor() {

    return author;

  }

  public void setAuthor(String author) {

    this.author = author;

  }

}

bookDao

package com.draymonder.book.jdbc;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.jdbc.core.BeanPropertyRowMapper;

import org.springframework.jdbc.core.JdbcTemplate;

import org.springframework.stereotype.Repository;

@Repository

public class BookDao {

  @Autowired

  JdbcTemplate jdbcTemplate;

  public int addBook(Book book) {

    return jdbcTemplate

        .update("insert into book(name, author) values (?, ?)", book.getName(), book.getAuthor());

  }

  public int updateBook(Book book) {

    return jdbcTemplate

        .update("update book set name=?, author=? where id=?", book.getName(), book.getAuthor(),

            book.getId());

  }

  public int deleteBookById(Integer id) {

    return jdbcTemplate.update("delete from book where id=?", id);

  }

  public Book getBookById(Integer id) {

    return jdbcTemplate.queryForObject("select * from book where id=?", new BeanPropertyRowMapper<>(Book.class), id);

  }

  public List<Book> getAllBooks() {

    return jdbcTemplate.query("select * from book", new BeanPropertyRowMapper<>(Book.class));

  }

}

bookService

package com.draymonder.book.jdbc;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

@Service

public class BookService {

  @Autowired

  BookDao bookDao;

  public int addBook(Book book) {

    return bookDao.addBook(book);

  }

  public int updateBook(Book book) {

    return bookDao.updateBook(book);

  }

  public int deleteBookById(Integer id) {

    return bookDao.deleteBookById(id);

  }

  public Book getBookById(Integer id) {

    return bookDao.getBookById(id);

  }

  public List<Book> getAllBooks() {

    return bookDao.getAllBooks();

  }

}

bookController

package com.draymonder.book.jdbc;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class BookController {

  @Autowired

  BookService bookService;

  @GetMapping("/bookOps")

  public void bookOps() {

    Book b1 = new Book();

    b1.setName("西厢记");

    b1.setAuthor("王实甫");

    int i = bookService.addBook(b1);

    System.out.println("add book >>> " + i);

    Book b2 = new Book();

    b2.setId(1);

    b2.setName("朝花夕拾");

    b2.setAuthor("鲁迅");

    int updateBook = bookService.updateBook(b2);

    System.out.println("update book >>> " + updateBook);

    Book b3 = bookService.getBookById(1);

    System.out.println("get book >>> " + b3);

    int delete = bookService.deleteBookById(1);

    System.out.println("delete book >>> " + delete);

    List<Book> allBooks = bookService.getAllBooks();

    allBooks.forEach(System.out::println);

  }

}