Mr.ning 通过本文主要向大家介绍了spring jdbctemplate,spring中jdbctemplate,jdbctemplate,jdbctemplate查询,jdbctemplate是什么等相关知识,希望对您有所帮助,也希望大家支持linkedu.com www.linkedu.com
最近在学习使用Spring Boot连接数据库，今天学习了使用jdbctemplate 操作MYSQL数据库，下面就留个笔记
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>
</div>
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</div>
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);
}
}
</div>
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;
}
}
</div>
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"));
}
}
</div>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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