Datax-web 添加达梦数据库

环境JDK1.8

node 10.24.1

python 2.X

Datax分支tag202309版本

后端项目 分支使用2.1.3-alpha-releaseGitHub - WeiYe-Jing/datax-web: DataX集成可视化页面，选择数据源即可一键生成数据同步任务，支持RDBMS、Hive、HBase、ClickHouse、MongoDB等数据源，批量创建RDBMS数据同步任务，集成开源调度系统，支持分布式、增量同步数据、实时查看运行日志、监控执行器资源、KILL运行进程、数据源信息加密等。DataX集成可视化页面，选择数据源即可一键生成数据同步任务，支持RDBMS、Hive、HBase、ClickHouse、MongoDB等数据源，批量创建RDBMS数据同步任务，集成开源调度系统，支持分布式、增量同步数据、实时查看运行日志、监控执行器资源、KILL运行进程、数据源信息加密等。 - WeiYe-Jing/datax-webhttps://github.com/WeiYe-Jing/datax-web.git

前端项目 分支使用2.1.3-alpha-release

    GitHub - WeiYe-Jing/datax-web-ui: DataX Web UI

1、添加达梦JDBC jdbc包放到 datax-admin/src/mian/lib下

​

2、pom.xml添加依赖

 <dependency>
            <groupId>com.dameng</groupId>
            <artifactId>Dm8JdbcDriver18</artifactId>
            <version>8.1.1.193</version>
            <scope>system</scope>
            <systemPath>${basedir}/src/main/lib/DmJdbcDriver18-8.1.1.193.jar</systemPath>
        </dependency>

3、新增DMWriter类

package com.wugui.datax.admin.tool.datax.writer;

/**
 * 达梦
 */
public class DMWriter extends BaseWriterPlugin implements DataxWriterInterface {

    @Override
    public String getName() {
        return "rdbmswriter";
    }
}

4、新增DMReader类

package com.wugui.datax.admin.tool.datax.reader;

/**
 * 达梦
 */
public class DMReader extends BaseReaderPlugin implements DataxReaderInterface {

    @Override
    public String getName() {
        return "rdbmsreader";
    }
}

5、新增DMSQLQueryTool类

package com.wugui.datax.admin.tool.query;

import com.wugui.datatx.core.enums.DbType;

public class DMSQLQueryTool extends BaseQueryTool implements QueryToolInterface{

    public DMSQLQueryTool(DbType dbType, String parameter) {
        super(dbType, parameter);
    }
}

6、在Constants类中添加达梦支持

    datax-core/src/main/java/Constants

public static final String COM_DAMENG_JDBC_DRIVER = "dm.jdbc.driver.DmDriver";
public static final String DAMENG = "DAMENG";
public static final String JDBC_DAMENG = "jdbc:dm://";

7、datax-core项目新增Datasource类

package com.wugui.datatx.core.datasource;

import com.wugui.datatx.core.enums.DbType;
import com.wugui.datatx.core.util.Constants;

public class DMDataSource extends BaseDataSource{
    @Override
    public String driverClassSelector() {
        return Constants.COM_DAMENG_JDBC_DRIVER;
    }

    @Override
    public DbType dbTypeSelector() {
        return DbType.DAMENG;
    }
}

8、datax-core项目DbType新增达梦枚举

DAMENG(14, Constants.COM_DAMENG_JDBC_DRIVER, DMDataSource.class, "dameng")

9、datax-admin项目DbTypePlugin插件类新增达梦枚举

    DAMENG(DbType.DAMENG, DMDatabaseMeta.getInstance(), DMSQLQueryTool.class, new DMReader(), new DMWriter());

10、datax-admin项目新增DMDatabaseMeta类

package com.wugui.datax.admin.tool.meta;

/**
 * 达梦数据库meta信息查询
 */
public class DMDatabaseMeta extends BaseDatabaseMeta{

    private volatile static DMDatabaseMeta single;

    public static DMDatabaseMeta getInstance() {
        if (single == null) {
            synchronized (DMDatabaseMeta.class) {
                if (single == null) {
                    single = new DMDatabaseMeta();
                }
            }
        }
        return single;
    }

    @Override
    public String getSQLQueryComment(String schemaName, String tableName, String columnName) {
        return String.format("SELECT COMMENTS FROM ALL_COL_COMMENTS WHERE SCHEMA_NAME = '%s' AND  TABLE_NAME = '%s' AND COLUMN_NAME = '%s'", schemaName, tableName, columnName);
    }

    @Override
    public String getSQLQueryPrimaryKey() {
        return "SELECT WM_CONCAT(B.COLUMN_NAME) PK_COLUMNS FROM ALL_CONSTRAINTS A, ALL_CONS_COLUMNS B WHERE  A.CONSTRAINT_type='P' AND A.OWNER=? AND A.TABLE_NAME=? AND B.OWNER = A.OWNER  AND A.TABLE_NAME = B.TABLE_NAME GROUP BY A.OWNER, A.TABLE_NAME";
    }

    @Override
    public String getSQLQueryTables() {
        return "select table_name FROM user_tables";
    }

    @Override
    public String getSQLQueryColumns(String... args) {
        return "SELECT COLUMN_NAME FROM ALL_TAB_COLUMNS WHERE OWNER = ? AND TABLE_NAME = ?";
    }

    /**
     *
     * @param args
     * @return
     */
    @Override
    public String getSQLQueryTableSchema(String... args) {
        return "SELECT DISTINCT OBJECT_NAME FROM DBA_OBJECTS WHERE OBJECT_TYPE='SCH'";
    }
}

11、前端添加配置

   dataSources属性添加

    ![](https://img-blog.csdnimg.cn/direct/57125eace1184275a80abdf5a2ffaee0.png)

 { value: 'DAMENG', label: 'DAMENG' }

   selectDataSource方法添加

else if (type === 'DAMENG') {
        this.temp.connectionParams.jdbcUrl = 'jdbc:dm://{host}:{port}'
      }