当前位置：移动技术网 > IT编程>开发语言>Java > 详解springboot采用多数据源对JdbcTemplate配置的方法

详解springboot采用多数据源对JdbcTemplate配置的方法

2019年07月19日 | 移动技术网IT编程 | 我要评论

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，感谢大家对移动技术网的支持。