maven的導入
一、maven 包的導入
清單如下：
<!-- Inherit defaults from Spring Boot -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.1.BUILD-SNAPSHOT</version>
</parent>
<!-- Add typical dependencies for a web application -->
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- spring data jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- mysql driver -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- 其他依賴 -->
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency>
</dependencies>
<!-- Package as an executable jar -->
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<!-- 編譯器版本指定 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<!-- Add Spring repositories -->
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/snapshot</url>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<url>http://repo.spring.io/milestone</url>
</pluginRepository>
</pluginRepositories>
<repositories>
<repository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/snapshot</url>
<snapshots><enabled>true</enabled></snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<url>http://repo.spring.io/milestone</url>
</repository>
</repositories>
以上為整個spring boot 構建簡單web項目所需要的maven配置文件。
二、創建實體類
package com.whucker.platform.domain;
@Entity //實體
@Table(name="t_user") //指定表名
public class User {
@Id //定義主鍵id
@GeneratedValue(strategy=GenerationType.AUTO) //自增
private Long id;
private String name;
private int age;
private int gender;
//...此處省略get/set
}
Repository代碼(此處使用的是spring data jpa，由於該文章主要講解spring boot，所有不在此對jpa做解釋)
package com.whucker.platform.repository;
public interface UserRepository extends CrudRepository<User, Long>{
}
接口定義
package com.whucker.platform.service;
public interface IUserService {
//添加
void save(User user);
//刪除
void delete(Long id);
//修改
void update(User user);
//查詢單個對象
User findOne(Long id);
//查詢所有
List<User> findAll();
}
接口實現
package com.whucker.platform.service.impl;
@Service(value="userService")
@Transactional
public class UserServiceImpl implements IUserService{
@Autowired
private UserRepository userRepository;
@Override
public void save(User user) {
this.userRepository.save(user);
}
}
控制層
package com.whucker.platform.controler;
@RestController
public class IndexManageAction {
@RequestMapping(value="/")
public String index(){
return "歡迎訪問首頁!";
}
}
三、Application類
ackage com.whucker.platform;
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class);
}
配置文件
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/spring-boot-db
spring.datasource.username=root
spring.datasource.password=root
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
maven的導入