不废话,先来代码
pom文件:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <groupId>test</groupId>
<artifactId>test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging> <name>test</name>
<url>http://maven.apache.org</url> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties> <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>1.4.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
<version>1.4.2.RELEASE</version>
</dependency> <dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency> </dependencies>
</project>
配置文件:application.properties(springboot框架默认使用这个名字,放在resources下面)
spring.datasource.url=jdbc:mysql://localhost:3306/service_lucky_draw?autoReconnect=true&useUnicode=true&characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=1234
spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.application.name = @pom.artifactId@
server.port=33333
启动类:
package versionUpdate; import java.util.List;
import java.util.Map; import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.jdbc.core.JdbcTemplate; @SpringBootApplication
public class ApplicationMain implements CommandLineRunner {
private Logger log = Logger.getLogger(ApplicationMain.class); @Autowired
private JdbcTemplate jdbcTemplate; public static void main(String[] args) {
SpringApplication springApplication = new SpringApplication(ApplicationMain.class);
springApplication.run(args);
} @Override
public void run(String... args) throws Exception {
String queryMerchandiseInfoSql = "SELECT id,worth,channel_id,template_id FROM merchandise_info";
List<Map<String, Object>> list = jdbcTemplate.queryForList(queryMerchandiseInfoSql);
log.debug(list);
}
}
至此一个简单的SpringBoot+Jdbctemplate+MYSQL的DEMO搭建完成;
如果不想在启动类里面直接进行数据库操作,可以按照下面的方式:
package versionUpdate; import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Component; /** 获取jdbctemplate实例 */
@Component
public class EnterJdbcTemplate { private static JdbcTemplate jdbcTemplate; @Autowired
public EnterJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
} public static JdbcTemplate getJdbcTemplate(){
return jdbcTemplate;
} }
package versionUpdate; import org.springframework.jdbc.core.JdbcTemplate; /** 操作数据库 */
public class Movedata extends EnterJdbcTemplate{ public Movedata(JdbcTemplate jdbcTemplate) {
super(jdbcTemplate);
} public static void ccc(){
System.out.println("++++++++++++++++++"+getJdbcTemplate().queryForMap("SELECT * FROM channel_info WHERE channel_id = ? ","cccc"));
}
}