JdbcTemplate是Spring框架自帶的對JDBC操作的封裝，目的是提供統一的模板方法使對數據庫的操作更加方便、友好，效率也不錯。
整合使用JdbcTemplate實現對圖書的添加功能小案例
采用springboot2.0.0版本
1.導入所需依賴jar包
<!--web應用--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--單測--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--jdbc --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <!-- mysql驅動 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency>
2.application.properties中的配置
1 spring.datasource.url=jdbc:mysql://localhost:3306/bookshop
2 spring.datasource.username=root 3 spring.datasource.password=123 4 spring.datasource.driver-class-name=com.mysql.jdbc.Driver
3.entity層
1 @Entity(name = "book") 3 public class Book { 4 @Id 5 @GeneratedValue 6 private Integer bookid; 7 @Column 8 private String bookname; 9 @Column 10 private Integer bookprice; 11 12 get set方法省略。。 13 }
4.service層
1 @Service 2 public class BookService { 3 @Autowired 4 private JdbcTemplate jdbcTemplate; 5 public void createUser(Integer booid,String bookname,Integer bookprice){ 6 System.out.println("createUser"); 7 jdbcTemplate.update("insert into book values(?,?,?);",booid,bookname,bookprice); 8 System.out.println("圖書添加成功！！"); 9 } 10 11 }
5.controller層
1 @Controller 2 public class BookController { 3 @Autowired 4 private BookService userService; 5 6 7 @RequestMapping("/createUser") 8 public String createUser(Integer booid,String bookname,Integer bookprice){ 9 userService.createUser(booid,bookname,bookprice); 10 return "success"; 11 } 12 }
6.success.ftl
1 <!DOCTYPE html> 2 <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" 3 xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3"> 4 <head> 5 <title>Hello World!</title> 6 </head> 7 <body> 8 <h1>success</h1> 9 </body> 10 </html>
7.啟動項目
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