官方代码如下：

// This file is auto-generated, don't edit it. Thanks.
package com.aliyun.sample;

import com.aliyun.tea.*;

public class Sample {

    /**
     * 使用AK&SK初始化账号Client
     * @param accessKeyId
     * @param accessKeySecret
     * @return Client
     * @throws Exception
     */
    public static com.aliyun.dysmsapi20170525.Client createClient(String accessKeyId, String accessKeySecret) throws Exception {
        com.aliyun.teaopenapi.models.Config config = new com.aliyun.teaopenapi.models.Config()
                // 必填，您的 AccessKey ID
                .setAccessKeyId(accessKeyId)
                // 必填，您的 AccessKey Secret
                .setAccessKeySecret(accessKeySecret);
        // Endpoint 请参考 https://api.aliyun.com/product/Dysmsapi
        config.endpoint = "dysmsapi.aliyuncs.com";
        return new com.aliyun.dysmsapi20170525.Client(config);
    }

    public static void main(String[] args_) throws Exception {
        java.util.List<String> args = java.util.Arrays.asList(args_);
        // 请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_ID 和 ALIBABA_CLOUD_ACCESS_KEY_SECRET。
        // 工程代码泄露可能会导致 AccessKey 泄露，并威胁账号下所有资源的安全性。以下代码示例使用环境变量获取 AccessKey 的方式进行调用，仅供参考，建议使用更安全的 STS 方式，更多鉴权访问方式请参见：https://help.aliyun.com/document_detail/378657.html
        com.aliyun.dysmsapi20170525.Client client = Sample.createClient(System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID"), System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"));
        com.aliyun.dysmsapi20170525.models.SendSmsRequest sendSmsRequest = new com.aliyun.dysmsapi20170525.models.SendSmsRequest()
                .setSignName("阿里云短信测试")
                .setTemplateCode("SMS_154950909")
                .setPhoneNumbers("15138098888")
                .setTemplateParam("{\"code\":\"1234\"}");
        com.aliyun.teautil.models.RuntimeOptions runtime = new com.aliyun.teautil.models.RuntimeOptions();
        try {
            // 复制代码运行请自行打印 API 的返回值
            client.sendSmsWithOptions(sendSmsRequest, runtime);
        } catch (TeaException error) {
            // 如有需要，请打印 error
            com.aliyun.teautil.Common.assertAsString(error.message);
        } catch (Exception _error) {
            TeaException error = new TeaException(_error.getMessage(), _error);
            // 如有需要，请打印 error
            com.aliyun.teautil.Common.assertAsString(error.message);
        }        
    }
}

上述代码在使用的时候只需要更改这几个地方即可。

对应的pom依赖

<dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>dysmsapi20170525</artifactId>
            <version>2.0.1</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>tea-openapi</artifactId>
            <version>0.0.13</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>tea-console</artifactId>
            <version>0.0.1</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>darabonba-env</artifactId>
            <version>0.1.1</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>tea-util</artifactId>
            <version>0.2.11</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>darabonba-time</artifactId>
            <version>0.0.1</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>darabonba-string</artifactId>
            <version>0.0.3</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>tea</artifactId>
            <version>[1.0.3, 2.0.0)</version>
        </dependency>

        <dependency>
            <groupId>org.locationtech.jts</groupId>
            <artifactId>jts-core</artifactId>
            <version>1.17.1</version> 
        </dependency>