發(fā)生緣由

• 學習ES中Java HighLevel Rest Client客戶端API

運行環(huán)境

• elasticsearch版本：7.12.1
• jdk版本：jdk-8
• 電腦系統(tǒng)：win10
• Idea版本：2021.2

報錯信息

org.elasticsearch.common.compress.NotXContentException: Compressor detection can only be called on some xcontent bytes or compressed xcontent bytes

	at org.elasticsearch.common.compress.CompressorFactory.compressor(CompressorFactory.java:42)
	at org.elasticsearch.common.xcontent.XContentHelper.convertToMap(XContentHelper.java:108)
	at org.elasticsearch.client.indices.CreateIndexRequest.source(CreateIndexRequest.java:276)
	at org.elasticsearch.client.indices.CreateIndexRequest.source(CreateIndexRequest.java:257)
	at com.linxuan.hotel.HotelDemoApplicationTests.createHotelIndex(HotelDemoApplicationTests.java:33)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at java.util.ArrayList.forEach(ArrayList.java:1249)

分析排查

• Compressor detection can only be called on some xcontent bytes or compressed xcontent bytes
• 壓縮器檢測只能在某些 xcontent 字節(jié)或壓縮的 xcontent 字節(jié)上面調(diào)用

根據(jù)報錯原因可以將錯誤定位至HotelDemoApplicationTests.java:33行，代碼如下：

@Test
void createHotelIndex() throws IOException {
    // 1.創(chuàng)建Request對象
    CreateIndexRequest request = new CreateIndexRequest("hotel");
    // 2.準備請求的參數(shù) DSL語句
    // 33行 報錯
    request.source(MAPPING_TEMPLATE, XContentType.JSON);
    // 3.發(fā)送請求
    client.indices().create(request, RequestOptions.DEFAULT);
}

那么就可以將報錯信息轉(zhuǎn)為人話了：語句的類型不是JSON風格的或者JSON格式化錯誤了。

定位MAPPING_TEMPLATE，代碼如下：

public static final String MAPPING_TEMPLATE = "PUT /hotel\n" +
            "{\n" +
            "  \"mappings\": {\n" +
            "    \"properties\": {\n" +
            "      \"id\": {\n" +
            "        \"type\": \"keyword\"\n" +
            "      },\n" +
            "      \"name\":{\n" +
            "        \"type\": \"text\",\n" +
            "        \"analyzer\": \"ik_max_word\",\n" +
            "        \"copy_to\": \"all\"\n" +
            "      },\n" +
            "      \"address\":{\n" +
            "        \"type\": \"keyword\",\n" +
            "        \"index\": false\n" +
            "      },\n" +
            "      \"all\":{\n" +
            "        \"type\": \"text\",\n" +
            "        \"analyzer\": \"ik_max_word\"\n" +
            "      }\n" +
            "    }\n" +
            "  }\n" +
            "}\n";

OK，原因找到了，因為添加了這一點代碼："PUT /hotel\n" +。將其刪去即可。文章來源地址http://www.zghlxwxcb.cn/news/detail-504902.html

到了這里，關(guān)于ES：Compressor detection can only be called on some xcontent bytes or compressed xcontent bytes的文章就介紹完了。如果您還想了解更多內(nèi)容，請在右上角搜索TOY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！