springboot 整合ES 多个字段高亮不出效果

Question

最近工作中看到一段Springboot整合ES高亮效果的代码，时间不多就大致看一会，休息时间凭借记忆写出来，但是效果出不来，有没有熟悉高亮的友人帮忙看看哪里错了。

springboot用的2.7.0，es data4.4.0，es7.17.3的

代码如下

@Resource
private ElasticsearchRestTemplate elasticsearchRestTemplate;

public Map searchWC(Integer page, Integer limit, String kw) {
    
    Pageable pageable = PageRequest.of(page - 1, limit);
    NativeSearchQueryBuilder searchQueryBuilder = new NativeSearchQueryBuilder();
    searchQueryBuilder.withPageable(pageable);
    BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
    if (kw!=null && "".equals(kw)){
        boolQueryBuilder.should(QueryBuilders.multiMatchQuery(kw, "name", "age"));
    }
    searchQueryBuilder.withFilter(boolQueryBuilder);

    FunctionScoreQueryBuilder functionScoreQueryBuilder = QueryBuilders.functionScoreQuery(boolQueryBuilder).scoreMode(FunctionScoreQuery.ScoreMode.SUM).setMinScore(1);
    searchQueryBuilder.withQuery(functionScoreQueryBuilder);

    // 配置高亮
    HighlightBuilder highlighter = new HighlightBuilder();
    highlighter.field("name");
    highlighter.field("age");
    highlighter.preTags("<font color='red'>");
    highlighter.postTags("</font>");
    searchQueryBuilder.withHighlightBuilder(highlighter);

    NativeSearchQuery searchQuery = searchQueryBuilder.build();

    // 查询
    SearchHits<User> searchHits = elasticsearchRestTemplate.search(searchQuery, User.class);
    if(searchHits.getTotalHits()<=0){
        return null;
    }

    // 处理结果
    List list = new ArrayList();
    Map searchResultMap = new HashMap<>();

    List<SearchHit<User>> result = searchHits.getSearchHits();
    result.forEach(r -> {
        //原始数据
        User user = r.getContent();
        //高亮数据
        Map<String, List<String>> highlightFields = r.getHighlightFields();
        //处理name字段
        List<String> names = highlightFields.get("name");
        if (names != null && names.size() > 0) {
            StringBuffer buffer = new StringBuffer();
            for (String s : names) {
                buffer.append(s);
                System.out.println(s);
            }
            user.setName(buffer.toString());
        }
        //处理age字段
        List<String> ages = highlightFields.get("age");
        if (ages != null && ages.size() > 0) {
            StringBuffer buffer = new StringBuffer();
            for (String s : ages) {
                buffer.append(s);
                System.out.println(s);
            }
            user.setAge(Integer.parseInt(buffer.toString()));
        }
        //=============没数据？？？================
        if(names==null){
            System.out.println("names无数据");
        }
        if(ages==null){
            System.out.println("ages无数据");
        }
        
        list.add(user);
    });
    searchResultMap.put("dataList",list);
    //保存分页信息：总条数total、总页数pages、结果当前页currPage
    long hitsTotalValue = searchHits.getTotalHits();
    searchResultMap.put("total", hitsTotalValue);
    searchResultMap.put("pages", (long) Math.ceil(hitsTotalValue / limit));
    searchResultMap.put("currPage", page);

    return searchResultMap;
}

现在的状况是，请求发出后，返回的结果中是整个users索引库中的所有测试数据，就是没有高亮和过滤的效果，分页没问题

Answer 1

HighlightBuilder.Field nameField = new HighlightBuilder
                .Field("*")
                .preTags("<span style='color:red'>")
                .postTags("</span>").requireFieldMatch(false);