SpringBoot实战：SpringBoot之自定义配置（一）

Z时代
2024-01-10
分类：综合

首先在resource/config文件夹下新建一个datasource.properties文件来进行数据库相关的配置如下：

#数据库地址 spring.datasource.url=jdbc:mysql://127.0.0.1:3306/wusy?characterEncoding=UTF-8&useSSL=false #数据库用户名 spring.datasource.username=root #数据密码 spring.datasource.password=123456 #数据库驱动 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver #最大连接数 spring.datasource.tomcat.max-active=20 #最大空闲数 spring.datasource.tomcat.max-idle=8 #最小空闲数 spring.datasource.tomcat.min-idle=8 #初始化连接数 spring.datasource.tomcat.initial-size=10 #对池中空闲的连接是否进行验证，验证失败则回收此连接

spring.datasource.tomcat.test-while-idle=true

在启动类中添加读取datasource.properties文件的注解@PropertySource

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.PropertySource;
/**
 * @author wusy
 * Company: xxxxxx科技有限公司
 * Createtime : 2020/2/24 21:42
 * Description : SpringBoot应用启动器
 */
@SpringBootApplication
@PropertySource(value = {"classpath:config/datasource.properties"}, encoding = "utf-8")
public class Application {
private static Logger logger = LoggerFactory.getLogger(Application.class);
    public static void main(String[] args) {
        SpringApplication application = new SpringApplication(Application.class);
application.run(args);
logger.info("启动成功");
}
}

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
/**
 * @author wusy
 * Company: xxxxxx科技有限公司
 * Createtime : 2020/2/24 21:54
 * Description :
 */
@RestController
@RequestMapping("/api/demo")
public class HelloWorldController {
    @Value("${spring.datasource.url}")
    private String url;
    @RequestMapping(value = "/hello", method = RequestMethod.GET)
    public String hello() {
        return "hello world," + url;
    }}