if (b) {//索引存在删除,不存在创建boolean delete = operations.【,如何解决?

根据功能补全缺失部分:
利用ElasticsearchRestTemplate实现索引操作
@Test
void indexExists() {
IndexOperations operations = template.indexOps(IndexCoordinates.of("zut_zy"));
boolean b = operations.【 】
;
if (b) {
//索引存在删除,不存在创建
boolean delete = operations.【 】
;
} else {
boolean result = operations.【 】
;
}
}

参考如下:

@Test
void indexExists() {
    IndexOperations operations = template.indexOps(IndexCoordinates.of("zut_zy"));
    boolean b = operations.exists();
    if (b) {
        //索引存在删除,不存在创建
        boolean delete = operations.delete();
    } else {
        boolean result = operations.create();
    }
}