详解springboot采用多数据源对JdbcTemplate配置的方法
投稿：laozhang
在本篇文章中我们给大家详细分享了springboot采用多数据源对JdbcTemplate配置的方法，有需要的朋友们可以学习参考下。
springboot多数据源配置，代码如下
DataSourceConfig
package com.rookie.bigdata.config;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.core.JdbcTemplate;
import javax.sql.DataSource;
/**
* @author
* @date 2018/10/10
*/
@Configuration
public class DataSourceConfig {
@Bean(name = "primaryDataSource")
@Qualifier("primaryDataSource")
@ConfigurationProperties(prefix="spring.datasource.primary")
public DataSource primaryDataSource() {
return DataSourceBuilder.create().build();
}
@Bean(name = "secondaryDataSource")
@Qualifier("secondaryDataSource")
@Primary
@ConfigurationProperties(prefix="spring.datasource.secondary")
public DataSource secondaryDataSource() {
return DataSourceBuilder.create().build();
}
@Bean(name = "primaryJdbcTemplate")
public JdbcTemplate primaryJdbcTemplate(
@Qualifier("primaryDataSource") DataSource dataSource) {
return new JdbcTemplate(dataSource);
}
@Bean(name = "secondaryJdbcTemplate")
public JdbcTemplate secondaryJdbcTemplate(
@Qualifier("secondaryDataSource") DataSource dataSource) {
return new JdbcTemplate(dataSource);
}
}
StudentServiceImpl
package com.rookie.bigdata.service;
import com.rookie.bigdata.domain.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;
/**
* @author
* @date 2018/10/9
*/
@Service
public class StudentServiceImpl implements StudentService {
@Autowired
@Qualifier("primaryJdbcTemplate")
private JdbcTemplate jdbcTemplate;
@Autowired
@Qualifier("secondaryJdbcTemplate")
private JdbcTemplate jdbcTemplate2;
/**
* 采用第一个暑假源进行插入数据
* @param student
*/
@Override
public void create(Student student) {
jdbcTemplate.update("INSERT INTO student(stu_no,name,age)VALUE (?,?,?)", student.getStuNo(), student.getName(), student.getAge());
}
/**
* 第一个数据源进行插入数据
* @param stuNo
*/
@Override
public void deleteByNo(Integer stuNo) {
jdbcTemplate.update("DELETE FROM student WHERE stu_no=?", stuNo);
}
/**
* 第二个数据源进行查询数据
* @param stuNo
* @return
*/
@Override
public Integer queryByStuNo(Integer stuNo) {
return jdbcTemplate2.queryForObject("select count(1) from student", Integer.class);
}
}
配置文件 application.properties
spring.datasource.primary.url=jdbc:mysql://localhost:3306/springboot spring.datasource.primary.username=root spring.datasource.primary.password=root spring.datasource.primary.driver-class-name=com.mysql.jdbc.Driver spring.datasource.secondary.url=jdbc:mysql://localhost:3306/springboot spring.datasource.secondary.username=root spring.datasource.secondary.password=root spring.datasource.secondary.driver-class-name=com.mysql.jdbc.Driver
测试代码如下
package com.rookie.bigdata.service;
import com.rookie.bigdata.domain.Student;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
/**
* @author liuxili
* @date 2018/10/10
*/
@RunWith(SpringRunner.class)
@SpringBootTest
public class StudentServiceImplTest {
@Autowired
private StudentServiceImpl studentService;
@Test
public void create1() throws Exception {
Student student = new Student();
student.setStuNo(1L);
student.setName("张三");
student.setAge(23);
studentService.create(student);
}
@Test
public void deleteByName1() throws Exception {
studentService.deleteByNo(1);
}
@Test
public void queryByStuNo1() throws Exception {
System.out.println(studentService.queryByStuNo(1));
}
}
在运行的时候会出现如下异常问题，运行失败，报出java.lang.IllegalArgumentException: jdbcUrl is required with driverClassName.异常
后来经过查资料，发现出现该问题的原因是由于springboot版本的问题，本实例采用的springboot版本为2.0.5，如果将版本改为1.5以前的版本就不会出现如上的问题，其实解决上面的异常主要有如下两种解决方案
方案一：
按照如下方案进行修改application.properties配置文件，如下：修改完成后，上面的异常不会再出现
spring.datasource.primary.jdbc-url=jdbc:mysql://localhost:3306/springboot spring.datasource.primary.username=root spring.datasource.primary.password=root spring.datasource.primary.driver-class-name=com.mysql.jdbc.Driver spring.datasource.secondary.jdbc-url=jdbc:mysql://localhost:3306/springboot spring.datasource.secondary.username=root spring.datasource.secondary.password=root spring.datasource.secondary.driver-class-name=com.mysql.jdbc.Driver
方案二：
原有的application.properties配置文件不进行修改，修改DataSourceConfig类中的信息，如下:修改完成后，异常也不会再出现能够正常运行
application.properties
spring.datasource.primary.url=jdbc:mysql://localhost:3306/springboot spring.datasource.primary.username=root spring.datasource.primary.password=root spring.datasource.primary.driver-class-name=com.mysql.jdbc.Driver spring.datasource.secondary.url=jdbc:mysql://localhost:3306/springboot spring.datasource.secondary.username=root spring.datasource.secondary.password=root spring.datasource.secondary.driver-class-name=com.mysql.jdbc.Driver
DataSourceConfig
package com.rookie.bigdata.config;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.core.JdbcTemplate;
import javax.sql.DataSource;
/**
* @author
* @date 2018/10/10
*/
@Configuration
public class DataSourceConfig {
@Bean(name = "primaryJdbcTemplate")
public JdbcTemplate primaryJdbcTemplate(
@Qualifier("primaryDataSource") DataSource dataSource) {
return new JdbcTemplate(dataSource);
}
@Bean(name = "secondaryJdbcTemplate")
public JdbcTemplate secondaryJdbcTemplate(
@Qualifier("primaryDataSource") DataSource dataSource) {
return new JdbcTemplate(dataSource);
}
@Primary
@Bean(name = "primaryDataSourceProperties")
@Qualifier("primaryDataSourceProperties")
@ConfigurationProperties(prefix = "spring.datasource.primary")
public DataSourceProperties primaryDataSourceProperties() {
return new DataSourceProperties();
}
@Bean(name = "secondaryDataSourceProperties")
@Qualifier("secondaryDataSourceProperties")
@ConfigurationProperties(prefix = "spring.datasource.secondary")
public DataSourceProperties secondaryDataSourceProperties() {
return new DataSourceProperties();
}
@Primary
@Bean(name = "primaryDataSource")
@Qualifier("primaryDataSource")
@ConfigurationProperties(prefix = "spring.datasource.primary")
public DataSource primaryDataSource() {
return primaryDataSourceProperties().initializeDataSourceBuilder().build();
}
@Bean(name = "secondaryDataSource")
@Qualifier("secondaryDataSource")
@ConfigurationProperties(prefix = "spring.datasource.secondary")
public DataSource secondaryDataSource() {
return primaryDataSourceProperties().initializeDataSourceBuilder().build();
}
}
至此，springboot 采用多数据源对JdbcTemplate进行配置完美解决，感谢大家对脚本之家的支持。