SpringBoot 集成sharding-jdbc 提示：Failed to configure a DataSource: ‘url‘ attribute is not specified ***
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问题描述：
今天使用SpringBoot 集成sharding-jdbc-4.1.1实现分库分表时报错：
***************************
APPLICATION FAILED TO START
***************************
Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [com/alibaba/druid/spring/boot/autoconfigure/DruidDataSourceAutoConfigure.class]: Invocation of init method failed; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class
SpringBoot +Sharding-jdbc pom.xml相关配置：
<?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>2.2.2.RELEASE</version>
</parent>
<groupId>org.zzg</groupId>
<artifactId>SmartHouse</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<sharding-sphere.version>4.1.1</sharding-sphere.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>RELEASE</version>
<scope>compile</scope>
</dependency>
<!--springboot 与 mybatis 集成 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<!-- 数据库连接池druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<!--mysql 驱动程序 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.49</version>
</dependency>
<!--依赖lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--依赖sharding-->
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>sharding-jdbc-spring-boot-starter</artifactId>
<version>4.1.1</version>
</dependency>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>sharding-core-common</artifactId>
<version>4.1.1</version>
</dependency>
<!--依赖sharding-xa 事务管理-->
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>sharding-jdbc-spring-boot-starter</artifactId>
<version>4.1.1</version>
</dependency>
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>sharding-transaction-xa-core</artifactId>
<version>4.1.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.6.6</version>
</plugin>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.5</version>
<configuration>
<configurationFile>src/main/resources/mybatis-generator/mybatis-generator-cfg.xml
</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<executions>
</executions>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.5</version>
</dependency>
<!--mysql 驱动程序 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.12</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>报错原因
是sharding-jdbc-4.1.1最新版本spring boot配置类存在问题导致。
org.apache.shardingsphere.shardingjdbc.spring.boot.SpringBootConfiguration
解决办法
方式一
降低sharding-jdbc 版本，由4.1.1 修改为 4.0.0-RC1
<properties>
<sharding-jdbc-version>4.0.0-RC1</sharding-jdbc-version>
</properties>
方式二（推荐使用）
重新写一个配置类，在自己项目中，可以跟sharding-jdbc-4.1.1最新版本spring boot配置类内容一致。
package com.zzg.config;
import com.google.common.base.Preconditions;
import lombok.RequiredArgsConstructor;
import org.apache.shardingsphere.core.yaml.swapper.MasterSlaveRuleConfigurationYamlSwapper;
import org.apache.shardingsphere.core.yaml.swapper.ShardingRuleConfigurationYamlSwapper;
import org.apache.shardingsphere.core.yaml.swapper.impl.ShadowRuleConfigurationYamlSwapper;
import org.apache.shardingsphere.encrypt.yaml.swapper.EncryptRuleConfigurationYamlSwapper;
import org.apache.shardingsphere.shardingjdbc.api.EncryptDataSourceFactory;
import org.apache.shardingsphere.shardingjdbc.api.MasterSlaveDataSourceFactory;
import org.apache.shardingsphere.shardingjdbc.api.ShadowDataSourceFactory;
import org.apache.shardingsphere.shardingjdbc.api.ShardingDataSourceFactory;
import org.apache.shardingsphere.shardingjdbc.spring.boot.common.SpringBootPropertiesConfigurationProperties;
import org.apache.shardingsphere.shardingjdbc.spring.boot.encrypt.EncryptRuleCondition;
import org.apache.shardingsphere.shardingjdbc.spring.boot.encrypt.SpringBootEncryptRuleConfigurationProperties;
import org.apache.shardingsphere.shardingjdbc.spring.boot.masterslave.MasterSlaveRuleCondition;
import org.apache.shardingsphere.shardingjdbc.spring.boot.masterslave.SpringBootMasterSlaveRuleConfigurationProperties;
import org.apache.shardingsphere.shardingjdbc.spring.boot.shadow.ShadowRuleCondition;
import org.apache.shardingsphere.shardingjdbc.spring.boot.shadow.SpringBootShadowRuleConfigurationProperties;
import org.apache.shardingsphere.shardingjdbc.spring.boot.sharding.ShardingRuleCondition;
import org.apache.shardingsphere.shardingjdbc.spring.boot.sharding.SpringBootShardingRuleConfigurationProperties;
import org.apache.shardingsphere.spring.boot.datasource.DataSourcePropertiesSetterHolder;
import org.apache.shardingsphere.spring.boot.util.DataSourceUtil;
import org.apache.shardingsphere.spring.boot.util.PropertyUtil;
import org.apache.shardingsphere.transaction.spring.ShardingTransactionTypeScanner;
import org.apache.shardingsphere.underlying.common.config.inline.InlineExpressionParser;
import org.apache.shardingsphere.underlying.common.exception.ShardingSphereException;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.env.StandardEnvironment;
import org.springframework.jndi.JndiObjectFactoryBean;
import javax.naming.NamingException;
import javax.sql.DataSource;
import java.sql.SQLException;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
@Configuration
@ComponentScan("org.apache.shardingsphere.spring.boot.converter")
@EnableConfigurationProperties(
SpringBootShardingRuleConfigurationProperties.class,
SpringBootMasterSlaveRuleConfigurationProperties.class,
SpringBootEncryptRuleConfigurationProperties.class,
SpringBootPropertiesConfigurationProperties.class,
SpringBootShadowRuleConfigurationProperties.class)
@ConditionalOnProperty(prefix = "spring.shardingsphere", name = "enabled", havingValue = "true", matchIfMissing = true)
@AutoConfigureBefore(DataSourceAutoConfiguration.class)
@RequiredArgsConstructor
public class ShardingJdbcConfig implements EnvironmentAware
private final SpringBootShardingRuleConfigurationProperties shardingRule;
private final SpringBootMasterSlaveRuleConfigurationProperties masterSlaveRule;
private final SpringBootEncryptRuleConfigurationProperties encryptRule;
private final SpringBootShadowRuleConfigurationProperties shadowRule;
private final SpringBootPropertiesConfigurationProperties props;
private final Map<String, DataSource> dataSourceMap = new LinkedHashMap<>();
private final String jndiName = "jndi-name";
/**
* Get sharding data source bean.
*
* @return data source bean
* @throws SQLException SQL exception
*/
@Bean
@ConditionalOnMissingBean(DataSource.class)
@Conditional(ShardingRuleCondition.class)
public DataSource shardingDataSource() throws SQLException
return ShardingDataSourceFactory.createDataSource(dataSourceMap, new ShardingRuleConfigurationYamlSwapper().swap(shardingRule), props.getProps());
/**
* Get master-slave data source bean.
*
* @return data source bean
* @throws SQLException SQL exception
*/
@Bean
@Conditional(MasterSlaveRuleCondition.class)
@ConditionalOnMissingBean(DataSource.class)
public DataSource masterSlaveDataSource() throws SQLException
return MasterSlaveDataSourceFactory.createDataSource(dataSourceMap, new MasterSlaveRuleConfigurationYamlSwapper().swap(masterSlaveRule), props.getProps());
/**
* Get encrypt data source bean.
*
* @return data source bean
* @throws SQLException SQL exception
*/
@Bean
@Conditional(EncryptRuleCondition.class)
@ConditionalOnMissingBean(DataSource.class)
public DataSource encryptDataSource() throws SQLException
return EncryptDataSourceFactory.createDataSource(dataSourceMap.values().iterator().next(), new EncryptRuleConfigurationYamlSwapper().swap(encryptRule), props.getProps());
/**
* Get shadow data source bean.
*
* @return data source bean
* @throws SQLException SQL exception
*/
@Bean
@Conditional(ShadowRuleCondition.class)
@ConditionalOnMissingBean(DataSource.class)
public DataSource shadowDataSource() throws SQLException
return ShadowDataSourceFactory.createDataSource(dataSourceMap, new ShadowRuleConfigurationYamlSwapper().swap(shadowRule), props.getProps());
/**
* Create sharding transaction type scanner.
*
* @return sharding transaction type scanner
*/
@Bean
@ConditionalOnMissingBean(ShardingTransactionTypeScanner.class)
public ShardingTransactionTypeScanner shardingTransactionTypeScanner()
return new ShardingTransactionTypeScanner();
@Override
public final void setEnvironment(final Environment environment)
String prefix = "spring.shardingsphere.datasource.";
for (String each : getDataSourceNames(environment, prefix))
try
dataSourceMap.put(each, getDataSource(environment, prefix, each));
catch (final ReflectiveOperationException ex)
throw new ShardingSphereException("Can't find datasource type!", ex);
catch (final NamingException namingEx)
throw new ShardingSphereException("Can't find JNDI datasource!", namingEx);
private List<String> getDataSourceNames(final Environment environment, final String prefix)
StandardEnvironment standardEnv = (StandardEnvironment) environment;
standardEnv.setIgnoreUnresolvableNestedPlaceholders(true);
return null == standardEnv.getProperty(prefix + "name")
? new InlineExpressionParser(standardEnv.getProperty(prefix + "names")).splitAndEvaluate() : Collections.singletonList(standardEnv.getProperty(prefix + "name"));
@SuppressWarnings("unchecked")
private DataSource getDataSource(final Environment environment, final String prefix, final String dataSourceName) throws ReflectiveOperationException, NamingException
Map<String, Object> dataSourceProps = PropertyUtil.handle(environment, prefix + dataSourceName.trim(), Map.class);
Preconditions.checkState(!dataSourceProps.isEmpty(), "Wrong datasource properties!");
if (dataSourceProps.containsKey(jndiName))
return getJndiDataSource(dataSourceProps.get(jndiName).toString());
DataSource result = DataSourceUtil.getDataSource(dataSourceProps.get("type").toString(), dataSourceProps);
DataSourcePropertiesSetterHolder.getDataSourcePropertiesSetterByType(dataSourceProps.get("type").toString()).ifPresent(
dataSourcePropertiesSetter -> dataSourcePropertiesSetter.propertiesSet(environment, prefix, dataSourceName, result));
return result;
private DataSource getJndiDataSource(final String jndiName) throws NamingException
JndiObjectFactoryBean bean = new JndiObjectFactoryBean();
bean.setResourceRef(true);
bean.setJndiName(jndiName);
bean.setProxyInterface(DataSource.class);
bean.afterPropertiesSet();
return (DataSource) bean.getObject();
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