Datax-web 使用Python3 执行脚本

dataxweb执行脚本核心代码

scriptJobHandler

@Override
    public ReturnT execute(TriggerParam tgParam) throws Exception {
        if (!glueType.isscript()) {
            return new ReturnT<>(IJobHandler.FAIL.getCode(), "glueType[" + glueType + "] invalid.");
        }

        // cmd
        String cmd = glueType.getCmd();

        // make script file
        String scriptFileName = JobFileAppender.getGlueSrcPath()
                .concat(File.separator)
                .concat(String.valueOf(jobId))
                .concat("_")
                .concat(String.valueOf(glueUpdatetime))
                .concat(glueType.getSuffix());
        File scriptFile = new File(scriptFileName);
        if (!scriptFile.exists()) {
            scriptUtil.markscriptFile(scriptFileName, gluesource);
        }

        // log file
        String logFileName = JobFileAppender.contextHolder.get();

        // script params：0=param、1=分片序号、2=分片总数
        ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();
        String[] scriptParams = new String[3];
        scriptParams[0] = tgParam.getExecutorParams();
        scriptParams[1] = String.valueOf(shardingVO.getIndex());
        scriptParams[2] = String.valueOf(shardingVO.getTotal());

        // invoke
        JobLogger.log("----------- script file:"+ scriptFileName +" -----------");
        int exitValue = scriptUtil.execToFile(cmd, scriptFileName, logFileName,tgParam.getLogId(),tgParam.getLogDateTime(), scriptParams);

        if (exitValue == 0) {
            return IJobHandler.SUCCESS;
        } else {
            return new ReturnT<>(IJobHandler.FAIL.getCode(), "script exit value(" + exitValue + ") is failed");
        }
    }

关键位置
GlueTypeEnum

    BEAN("BEAN", false, null, null),
    GLUE_GROOVY("GLUE(Java)", false, null, null),
    GLUE_SHELL("GLUE(Shell)", true, "bash", ".sh"),
    GLUE_PYTHON("GLUE(Python)", true, "python3", ".py"),
    GLUE_PHP("GLUE(PHP)", true, "php", ".php"),
    GLUE_NODEJS("GLUE(Nodejs)", true, "node", ".js"),
    GLUE_POWERSHELL("GLUE(PowerShell)", true, "powershell", ".ps1");

源码是： GLUE_PYTHON(“GLUE(Python)”, true, “python”, “.py”)
修改为： GLUE_PYTHON(“GLUE(Python)”, true, “python3”, “.py”)
因为操作系统默认也会使用python，所以不可以修改python的链接指向。重新打包替换项目中的Jar包，重启即可。
路径：datax-web-2.1.2/modules/datax-executor/lib
Jar包名：datax-core-2.1.2.jar

编写脚本测试

#!/opt/python-3.6.8/bin/python3
# -*- coding: utf-8 -*-
import platform

print(platform.python_version())

结果图