ES中设计一个索引结构包含: name名称、age年龄、sex性别、desc描述。等字段， 使用JAVA API插入多个内容。要求查询出年里在18-35之间，并且姓名包含“李”的所有数据

可以按照以下步骤实现：

1. 创建一个索引，包含name、age、sex、desc等字段，例如：

CreateIndexRequest request = new CreateIndexRequest("my_index");
request.settings(Settings.builder()
    .put("index.number_of_shards", 1)
    .put("index.number_of_replicas", 0)
);
XContentBuilder mappingBuilder = XContentFactory.jsonBuilder()
    .startObject()
        .startObject("properties")
            .startObject("name")
                .field("type", "text")
            .endObject()
            .startObject("age")
                .field("type", "integer")
            .endObject()
            .startObject("sex")
                .field("type", "text")
            .endObject()
            .startObject("desc")
                .field("type", "text")
            .endObject()
        .endObject()
    .endObject();
request.mapping(mappingBuilder);
CreateIndexResponse createIndexResponse = client.indices().create(request, RequestOptions.DEFAULT);

2. 插入多个文档，例如：

List<IndexRequest> requests = new ArrayList<>();
requests.add(new IndexRequest("my_index").source("name", "李明", "age", 20, "sex", "男", "desc", "这是一个描述"));
requests.add(new IndexRequest("my_index").source("name", "张三", "age", 25, "sex", "女", "desc", "这是另一个描述"));
requests.add(new IndexRequest("my_index").source("name", "李四", "age", 30, "sex", "男", "desc", "这是第三个描述"));
BulkRequest bulkRequest = new BulkRequest();
for (IndexRequest request : requests) {
    bulkRequest.add(request);
}
BulkResponse bulkResponse = client.bulk(bulkRequest, RequestOptions.DEFAULT);

3. 查询年龄在18-35之间，姓名包含"李"的所有文档，例如：

QueryBuilder queryBuilder = QueryBuilders.boolQuery()
        .must(QueryBuilders.rangeQuery("age").gte(18).lte(35))
        .must(QueryBuilders.matchQuery("name", "李"));
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder()
        .query(queryBuilder);
SearchRequest searchRequest = new SearchRequest("my_index")
        .source(sourceBuilder);
SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
SearchHits hits = searchResponse.getHits();
for (SearchHit hit : hits.getHits()) {
    System.out.println(hit.getSourceAsString());
}

以上是使用Java API实现的示例，其中`client`是一个`RestHighLevelClient`实例，需要根据实际情况进行创建。