SpringBoot教程(六)springboot配置資料來源和JDBC
阿新 • • 發佈:2018-12-26
一.基於Springboot預設的資料來源配置
1.配置pom
<?xml version="1.0" encoding="UTF-8"?> <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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.1.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.spb.demo.jdbc</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.45</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2.配置application.yml檔案
server: port: 8080 tomcat: uri-encoding: UTF-8 spring: datasource: platform: mysql driverClassName: com.mysql.jdbc.Driver url: jdbc:mysql://192.168.11.240:3306/lpinfo?useSSL=false&useUnicode=true&characterEncoding=utf8 username: root password: 123
3.配置資料來源
package com.spb.demo.jdbc.demo; import com.zaxxer.hikari.HikariDataSource; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.core.env.Environment; import javax.sql.DataSource; @Configuration public class DataSourceConfig { @Autowired private Environment env; @Bean public DataSource getDataSource() { HikariDataSource ds = new HikariDataSource(); ds.setJdbcUrl(env.getProperty("spring.datasource.url")); ds.setDriverClassName(env.getProperty("spring.datasource.driverClassName")); ds.setUsername(env.getProperty("spring.datasource.username")); ds.setPassword(env.getProperty("spring.datasource.password")); return ds; } }
4.配置測試類
package com.spb.demo.jdbc.demo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringBootConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.test.context.junit4.SpringRunner;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
import java.util.Map;
@RunWith(SpringRunner.class)
@SpringBootTest
@SpringBootConfiguration
@SpringBootApplication
public class SPB_JDBC_TEST {
@Autowired
DataSource dataSource;
@Autowired
JdbcTemplate jdbcTemplate;
@Test
public void contextLoads() {
try {
Connection connection = dataSource.getConnection();
System.out.print("===========DB-Schema:"+connection.getCatalog());
//查詢一個表
List<Map<String,Object>> list =jdbcTemplate.queryForList("select * from user");
System.out.print("===========DB-JdbcTemplate:"+ list.get(0));
connection.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
5.執行正常
===========DB-Schema:cpc_20180929
===========DB-JdbcTemplate:{user_id=1, user_code=1, user_name=1}
二.基於tomcat 配置資料來源
三.基於DBCP配置資料來源
四.springboot配置多資料來源和讀寫分離模板