页脚的春季批处理启动行数

Question

***我是Spring Boot的新手。

我想将行数打印到页脚。

我需要将count变量放到我的页脚-setFooterCallback（）中，如下所示，当前它为null。有想法吗？

============================= ItemCountListner.java

we can add following code in theme's function.php

add_action('rest_api_init', 'bs_rest_api_hooks');
function bs_rest_api_hooks() {
    register_rest_field(
        'post',
        'mtags',
        array(
            'get_callback' => 'm_get_tags',
        )
    );
}
function m_get_tags($object, $field_name, $request) {

    $tags = get_the_tags($object["id"]);

    return $tags;
}

=====================================

public class ItemCountListener implements ChunkListener {

 
@Override
public void beforeChunk(ChunkContext context) {
}

@Override
public void afterChunk(ChunkContext context) {
     
    int count = context.getStepContext().getStepExecution().getReadCount();
    
    System.out.println("ItemCount: " + count);
}
 
@Override
public void afterChunkError(ChunkContext context) {
}