标签：line exce sys hand host autoconf etl xsd span
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；
但是！！！问题来了，在启动文件中自动注入Jdbctemplate是OK的，可是在下面的代码中使用注入的时候Jdbctemplate是null这是为什么呢？ 目前找问题中，期待解决，还是boot用的不熟练呀
package versionUpdate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;
@Service
public class Movedata {
@Autowired
private static JdbcTemplate jdbcTemplate ;
public static void ccc(){
System.out.println("++++++++++++++++++"+jdbcTemplate.queryForMap("SELECT * FROM channel_info WHERE channel_id = ? ","ios"));
}
}
Spring Boot项目中使用jdbctemplate 操作MYSQL数据库
标签：line exce sys hand host autoconf etl xsd span
原文地址：http://www.cnblogs.com/ning-blogs/p/6078703.html
