sharding-jdbc版本
<dependency>
<groupId>org.apache.shardingsphere</groupId>
<artifactId>sharding-jdbc-spring-boot-starter</artifactId>
<version>4.0.0-RC1</version>
</dependency>
这个版本支持的数据库在org.apache.shardingsphere.core.constant.DatabaseType有标明:
public enum DatabaseType {
H2("H2"),
MySQL("MySQL"),
PostgreSQL("PostgreSQL"),
Oracle("Oracle"),
SQLServer("Microsoft SQL Server");
***
注意,不同版本的shardingsphere适配方式是不一样的,因为据我观察每个版本确定数据库类型的流程有差异
oceanbase驱动版本
<dependency>
<groupId>com.alipay.oceanbase</groupId>
<artifactId>oceanbase-client</artifactId>
<version>1.1.7</version>
</dependency>
org.apache.shardingsphere.core.metadata.datasource.dialect.MySQLDataSourceMetaData
项目启动时,会由这个类去匹配数据源的数据库类型
原代码
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//
package org.apache.shardingsphere.core.metadata.datasource.dialect;
import com.google.common.base.Strings;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.shardingsphere.core.exception.ShardingException;
import org.apache.shardingsphere.core.metadata.datasource.DataSourceMetaData;
public final class MySQLDataSourceMetaData implements DataSourceMetaData {
private static final int DEFAULT_PORT = 3306;
private final String hostName;
private final int port;
private final String schemaName;
private final Pattern pattern = Pattern.compile("jdbc:mysql:(\\w*:)?//([\\w\\-\\.]+):?([0-9]*)/([\\w\\-]+);?\\S*", 2);
public MySQLDataSourceMetaData(String url) {
Matcher matcher = this.pattern.matcher(url);
if (matcher.find()) {
this.hostName = matcher.group(2);
this.port = Strings.isNullOrEmpty(matcher.group(3)) ? 3306 : Integer.valueOf(matcher.group(3));
this.schemaName = matcher.group(4);
} else {
throw new ShardingException("The URL of JDBC is not supported. Please refer to this pattern: %s.", new Object[]{this.pattern.pattern()});
}
}
public boolean isInSameDatabaseInstance(DataSourceMetaData dataSourceMetaData) {
return this.hostName.equals(dataSourceMetaData.getHostName()) && this.port == dataSourceMetaData.getPort();
}
public String getHostName() {
return this.hostName;
}
public int getPort() {
return this.port;
}
public String getSchemaName() {
return this.schemaName;
}
public Pattern getPattern() {
return this.pattern;
}
}
pattern增加oceanbase
构造函数将各个下标增1
这样就能让程序将oceanbase当作mysql处理
复制一份到项目路径下,修改后,启动时会覆盖jar中此类
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//
package org.apache.shardingsphere.core.metadata.datasource.dialect;
import com.google.common.base.Strings;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.shardingsphere.core.exception.ShardingException;
import org.apache.shardingsphere.core.metadata.datasource.DataSourceMetaData;
public final class MySQLDataSourceMetaData implements DataSourceMetaData {
private static final int DEFAULT_PORT = 3306;
private final String hostName;
private final int port;
private final String schemaName;
private final Pattern pattern = Pattern.compile("jdbc:(mysql|oceanbase):(\\w*:)?//([\\w\\-\\.]+):?([0-9]*)/([\\w\\-]+);?\\S*", 2);
public MySQLDataSourceMetaData(String url) {
Matcher matcher = this.pattern.matcher(url);
if (matcher.find()) {
this.hostName = matcher.group(3);
this.port = Strings.isNullOrEmpty(matcher.group(4)) ? 3306 : Integer.valueOf(matcher.group(4));
this.schemaName = matcher.group(5);
} else {
throw new ShardingException("The URL of JDBC is not supported. Please refer to this pattern: %s.", new Object[]{this.pattern.pattern()});
}
}
public boolean isInSameDatabaseInstance(DataSourceMetaData dataSourceMetaData) {
return this.hostName.equals(dataSourceMetaData.getHostName()) && this.port == dataSourceMetaData.getPort();
}
public String getHostName() {
return this.hostName;
}
public int getPort() {
return this.port;
}
public String getSchemaName() {
return this.schemaName;
}
public Pattern getPattern() {
return this.pattern;
}
}