SpringBoot整合JDBC数据库操作-8:代码注入DataSource

上篇文章我们讲到了自定义RowMapper返回结果体,这篇文章主要讲解一下在项目中去使用代码注入DataSource(也是为了将项目的属性定制为自己喜欢的名称等).

将application.yml配置文件修改为以下内容

custom:
  source:
    driver: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/test
    username: root
    password: 123456

在源码目录下新建config目录, 在该目录下新建CustomDataSource类文件

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.edurt.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.core.JdbcTemplate;

import javax.sql.DataSource;

/**
 * CustomDataSource <br/>
 * 描述 : CustomDataSource <br/>
 * 作者 : qianmoQ <br/>
 * 版本 : 1.0 <br/>
 * 创建时间 : 2018-03-28 下午2:51 <br/>
 * 联系作者 : <a href="mailTo:shichengoooo@163.com">qianmoQ</a>
 */
@Configuration
public class CustomDataSource {

    @Value(value = "${custom.source.driver}")
    private String driver;

    @Value(value = "${custom.source.url}")
    private String url;

    @Value(value = "${custom.source.username}")
    private String username;

    @Value(value = "${custom.source.password}")
    private String password;

    @Bean
    public DataSource dataSource() {
        return DataSourceBuilder.create()
                .driverClassName(driver)
                .url(url)
                .username(username)
                .password(password).build();
    }


    @Bean
    @ConfigurationProperties(prefix = "custom.source")
    public DataSource dataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    public JdbcTemplate jdbcTemplate() {
        return new JdbcTemplate(dataSource());
    }

}

启动服务测试数据即可