解決使用 Spring Boot 集成 Elasticsearch 實現分頁查詢 getTotalPages() 返回值始終爲1的問題

問題描述

• 測試代碼

    @Test
    public void customAdvanceSelect() {
        // 構造查詢條件
        NativeSearchQueryBuilder queryBuilder = new NativeSearchQueryBuilder();
        // 添加基本的分詞條件
        queryBuilder.withQuery(QueryBuilders.matchQuery("title", "你的文檔"));
        // 排序條件（降序）
        queryBuilder.withSort(SortBuilders.fieldSort("id").order(SortOrder.ASC));
        // 分頁條件
        queryBuilder.withPageable(PageRequest.of(0, 15));
        // 根據條件查詢
        Page<Article> articlesESEntities = articleRepositories.search(queryBuilder.build());

        logger.info("【文章】總條數 = {}", articlesESEntities.getTotalElements());
        logger.info("【文章】總頁數 = {}", articlesESEntities.getTotalPages());
        articlesESEntities.forEach(article -> logger.info("【文章】= {}", JSON.toJSONString(article)));
    }

• 結果

  2020-06-12 10:14:16.217  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】總條數 = 99
  2020-06-12 10:14:16.218  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】總頁數 = 1
  2020-06-12 10:14:16.385  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容1","id":1,"title":"新添加的文檔1"}
  2020-06-12 10:14:16.386  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容2","id":2,"title":"新添加的文檔2"}
  2020-06-12 10:14:16.387  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容3","id":3,"title":"新添加的文檔3"}
  2020-06-12 10:14:16.387  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容4","id":4,"title":"新添加的文檔4"}
  2020-06-12 10:14:16.387  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容5","id":5,"title":"新添加的文檔5"}
  2020-06-12 10:14:16.388  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容6","id":6,"title":"新添加的文檔6"}
  2020-06-12 10:14:16.388  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容7","id":7,"title":"新添加的文檔7"}
  2020-06-12 10:14:16.389  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容8","id":8,"title":"新添加的文檔8"}
  2020-06-12 10:14:16.389  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容9","id":9,"title":"新添加的文檔9"}
  2020-06-12 10:14:16.390  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容10","id":10,"title":"新添加的文檔10"}
  2020-06-12 10:14:16.390  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容11","id":11,"title":"新添加的文檔11"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容12","id":12,"title":"新添加的文檔12"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容13","id":13,"title":"新添加的文檔13"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容14","id":14,"title":"新添加的文檔14"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容15","id":15,"title":"新添加的文檔15"}
  

可以看到查詢到的總數是對的但是，分頁後的爲1（隨意修改分頁的size，結果始終爲1），明顯存在問題。看源碼：

public int getTotalPages() {
   return this.getSize() == 0 ? 1 : (int)Math.ceil((double)this.total / (double)this.getSize());
}

分析應該是獲取到的分頁size爲0導致的問題，可能是由於版本不兼容的問題

解決

• 修改pom文件
  升級springboot的版本：2.0.1.RELEASE升級爲2.0.4.RELEASE ,並將 實體類中屬性的註解@Field(type = FieldType.Text中的常量首字母大寫（Keyword、Date等都一樣）

  <!-- 修改前 -->
  <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.0.1.RELEASE</version>
      <relativePath/>
  </parent>
  
  <!-- 修改後 -->
  <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.0.4.RELEASE</version>
      <relativePath/>
  </parent>
  
  // 修改前
  @Id //主鍵
  private Long id;
  @Field(type = FieldType.text, index = true, store = true, analyzer = "ik_smart")
  private String title; // 標題
  @Field(type = FieldType.text, index = true, store = true, analyzer = "ik_smart")
  private String content;// 內容
  
  // 修改後
  @Id //主鍵
  private Long id;
  @Field(type = FieldType.Text, index = true, store = true, analyzer = "ik_smart")
  private String title; // 標題
  @Field(type = FieldType.Text, index = true, store = true, analyzer = "ik_smart")
  private String content;// 內容
  

• 結果

  2020-06-12 10:14:16.217  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】總條數 = 99
  2020-06-12 10:14:16.218  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】總頁數 = 7
  2020-06-12 10:14:16.385  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容1","id":1,"title":"新添加的文檔1"}
  2020-06-12 10:14:16.386  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容2","id":2,"title":"新添加的文檔2"}
  2020-06-12 10:14:16.387  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容3","id":3,"title":"新添加的文檔3"}
  2020-06-12 10:14:16.387  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容4","id":4,"title":"新添加的文檔4"}
  2020-06-12 10:14:16.387  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容5","id":5,"title":"新添加的文檔5"}
  2020-06-12 10:14:16.388  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容6","id":6,"title":"新添加的文檔6"}
  2020-06-12 10:14:16.388  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容7","id":7,"title":"新添加的文檔7"}
  2020-06-12 10:14:16.389  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容8","id":8,"title":"新添加的文檔8"}
  2020-06-12 10:14:16.389  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容9","id":9,"title":"新添加的文檔9"}
  2020-06-12 10:14:16.390  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容10","id":10,"title":"新添加的文檔10"}
  2020-06-12 10:14:16.390  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容11","id":11,"title":"新添加的文檔11"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容12","id":12,"title":"新添加的文檔12"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容13","id":13,"title":"新添加的文檔13"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容14","id":14,"title":"新添加的文檔14"}
  2020-06-12 10:14:16.391  INFO 14604 --- [           main] c.e.t.e.SpringDataElasticSearchTest      : 【文章】= {"content":"新添加的文檔內容15","id":15,"title":"新添加的文檔15"}