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#spring:# datasource:# # 使用数据库驱动# driver-class-name: com.mysql.jdbc.Driver# # 数据库连接地址# url: jdbc:mysql://localhost:3306/test# # 数据库用户名# username: root# # 数据库用户密码# password: 123456custom: 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> */@Configurationpublic 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