java实现 elasticsearch es 的单个条件查询和多个条件查询，根据id更新指定字段-Toy模板网

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@Autowired
private RestHighLevelClient restHighLevelClient;

1：ES根据单个条件查询

public String searchEsAttachmentsLink(String riskId,String dataFrom){
try {
//添加条件，
    SearchSourceBuilder searchSourceBuilder = SearchSourceBuilder.searchSource()
            .size(1)
            .query(QueryBuilders.termQuery( name: "字段"， 值));
//拼装
    SearchRequest searchRequest = new SearchRequest()
        .indices(索引)
        .source(searchSourceBuilder);
//用ESClient执行search，得到响应结果
    SearchResponse searchResponse =         
    restHighLevelClient.search(searchRequest,RequestOption.DEFAULT);
//根据自己返回的数据格式取值
    SearchHit[] hits = searchResponse.getHits().getHits();
    for (SearchHit hit : hits) {
//取值
        hit.getSourceAsMap().get("字段");
    }
    

       return null;
}

2:ES根据多个条件查询

BoolOueryBuilder boolOueryBuilder = new BoolOueryBuilder();
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
//用must拼接where条件
boolQueryBuilder.must(QueryBuilders.termQuery("字段"，"值"))
                .must(QueryBuilders.termQuery("字段","值");
SearchRequest searchRequest = new SearchRequest()
            .indices(索引)
            .source(searchSourceBuilder);
searchSourceBuilder.query(boolQueryBuilder);
log.info("拼接后的请求参数: ",searchRequest);
SearchResponse searchResponse = restHighLevelclient.search(searchRequest,RequestOptions .DEFAULT) ;
log.info("查询后的结果: ",searchResponse);
//取值
SearchHitl] hits = searchResponse.getHits() .getHits();

3：ES根据id，局部更新文档

UpdateRequest updateRequest = new UpdateRequest();
updateRequest.index(索引);
updateRequest.type("_doc");
updateRequest.id(id);
//添加where条件
updateRequest.doc(
        XContentFactory.jsonBuilder(
                .startobject()
                .field( "字段"， "值")
                .field( "字段"， "值")
                .endobject()
    );
//执行
String resultUpdate = restHighlevelClient.update(updateRequest, Request0ptions.DEFAULT).getResult().tostring();

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