<dependency>

            <groupId>com.aliyun.odps</groupId>

            <artifactId>odps-sdk-udf</artifactId>

            <version>0.17.3</version>

        </dependency>

    </dependencies>

package com.odps.udf;

import com.aliyun.odps.udf.UDF;

public final class Upper_test extends UDF{

	public String evaluate(String s){     ##

		if(s==null) {return null;}       ##

		return s.toUpperCase();          ## 替换该函数内容

	}

}