ElasticSearch使用(嵌套查询、嵌套高亮)

嵌套查询

当ES的一条文档中的数据是一个数组,数组中有多个对象时,普通的查询不再适用,比如:

{
    "_index" : "t_trace_index-2019.08.11.15",
    "_type" : "_doc",
    "_id" : "c8fc4f6f0bcd^1565435961237^3980",
    "_score" : 11.434727,
    "_routing" : "c8fc4f6f0bcd^1565435961237^3980",
    "_source" : {
      "type" : "pdoc",
      "calls" : [
        {
          "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"OPER_ID":"10034571"}}""",
          "callee" : "test-busi-ocrm-yyt",
          "caller" : "test-busi-cust-yyt",
          "rpc" : "CSF_SEC_OPERM_OPIDQQUERY_002",
          "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
          "ts" : 1565507717426
        },
        {
          "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
          "caller" : "test-busi-cust-yyt",
          "rpc" : "ocrm_ICbossCSV_idCheck",
          "callee" : "test-busi-ocrm-yyt",
          "ts" : 1565507717915,
          "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RSP_JSON_STR":"{\"IdCheck\":{\"Seq\":\"10020190811151517510040\",\"CustomerName\":\"786382D36B599DF8D3C312272A75AD81\",\"IDCardType\":\"04\",\"IDCardNum\":\"99425ED800E46883C131C544E9F8BAD9\",\"ChannelId\":\"210000000100001\",\"MsOpcode\":\"C8000\"}}"}}"""
        },
        {
          "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
          "caller" : "test-busi-rule-yyt",
          "rpc" : "cust_IOneCardFiveUserCSV_idCheck",
          "callee" : "test-busi-cust-yyt",
          "ts" : 1565507717985,
          "bizParams" : """{"input":{"CERT_CODE":"523453","CODE_TYPE":"CM_CERT_TYPE_CHECKCODE","CUST_NAME":"对方八年","CERT_TYPE":"3","CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}"""
        }
      ],
      "id" : "c8fc4f6f0bcd^1565435961237^3980",
      "timestamp" : 1565507717426,
      "trace_join" : {
        "name" : "pdoc"
      }
    }
}

这时候就需要使用嵌套查询(nested)

bool 查询

查询字句 说明 类型
must 文档必须匹配must查询条件(AND) 数组
should 匹配should的一个或多个(OR) 数组
must_not 文档不能匹配该查询条件 数组
filter 过滤,文档需要匹配过滤条件,功能和must一样,不过filter不参与评分 数组

must、should关系

1、只有must

must中条件必须满足

2、只有should

没有must,只有should,那么should中必须至少匹配一个才行

3、must和should同时存在

如果must中条件匹配,那么should可以不匹配,所以如果查询语句中must、should同时存在,又不设置should最小满足条数,那么should条件有时是不会生效的

项目使用场景:
快速定位功能,需要输入关键字和各种过滤条件,关键字有三种类型,查询时,每个关键字都需要搜索一遍,考虑的是关键字使用should,只要有一种关键字类型满足即可,过滤条件使用must,需要全都满足,在没有指定should最小满足条数时,发现关键字可以输入任意值,只要过滤条件满足就可以查询出结果,关键字没有起作用,在增加should最小满足条数为1之后,设置should至少满足一条,查询结果正确

4、怎样设置should必须满足、最小满足条数

可以设置should中必须匹配多少个,参数"minimum_should_match": "1",也可以设置匹配百分比"minimum_should_match":75%

Java代码

BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();
boolQueryBuilder.should(QueryBuilders.nestedQuery("calls", QueryBuilders.boolQuery().must(QueryBuilders.matchPhraseQuery("calls.bizParams", keyword)), ScoreMode.Avg));
boolQueryBuilder.should(QueryBuilders.nestedQuery("calls", QueryBuilders.boolQuery().must(QueryBuilders.termQuery("calls.rpc", keyword)), ScoreMode.Avg));
boolQueryBuilder.should(QueryBuilders.nestedQuery("calls", QueryBuilders.boolQuery().must(QueryBuilders.termQuery("calls.traceId", keyword)), ScoreMode.Avg));
// 设置should必须匹配多少条
boolQueryBuilder.minimumShouldMatch(1);

DSL查询语句

"should": [
{
  "nested": {
    "query": {
      "bool": {
        "must": [
          {
            "match_phrase": {
              "calls.bizParams": {
                "query": "input",
                "slop": 0,
                "zero_terms_query": "NONE",
                "boost": 1
              }
            }
          }
        ],
        "adjust_pure_negative": true,
        "boost": 1
      }
    },
    "path": "calls",
    "ignore_unmapped": false,
    "score_mode": "avg",
    "boost": 1,
  }
},
{
  "nested": {
    "query": {
      "bool": {
        "must": [
          {
            "term": {
              "calls.rpc": {
                "value": "input",
                "boost": 1
              }
            }
          }
        ],
        "adjust_pure_negative": true,
        "boost": 1
      }
    },
    "path": "calls",
    "ignore_unmapped": false,
    "score_mode": "avg",
    "boost": 1
  }
},
{
  "nested": {
    "query": {
      "bool": {
        "must": [
          {
            "term": {
              "calls.traceId": {
                "value": "input",
                "boost": 1
              }
            }
          }
        ],
        "adjust_pure_negative": true,
        "boost": 1
      }
    },
    "path": "calls",
    "ignore_unmapped": false,
    "score_mode": "avg",
    "boost": 1
  }
}
],
"adjust_pure_negative": true,
"minimum_should_match": "1",
"boost": 1

设置should中三个条件至少有一个匹配才行

查询高亮

1. 普通查询高亮

java代码

HighlightBuilder highlightBuilder = new HighlightBuilder();
highlightBuilder.field("calls.bizParams");
//高亮标签
highlightBuilder.preTags("<em>").postTags("</em>");
//高亮内容长度
highlightBuilder.fragmentSize(200);
// 创建并设置SearchSourceBuilder对象
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.highlighter(highlightBuilder);

DSL查询语句

{
  "from": 0,
  "size": 5000,
  "timeout": "2000ms",
  "query": {
    "bool": {
      "should": [
        {
          "nested": {
            "query": {
              "bool": {
                "must": [
                  {
                    "match_phrase": {
                      "calls.bizParams": {
                        "query": "cb47bea067fc^1565266299866^564",
                        "slop": 0,
                        "zero_terms_query": "NONE",
                        "boost": 1
                      }
                    }
                  }
                ],
                "adjust_pure_negative": true,
                "boost": 1
              }
            },
            "path": "calls",
            "ignore_unmapped": false,
            "score_mode": "none",
            "boost": 1
          }
        }
      ],
      "adjust_pure_negative": true,
      "boost": 1,
      "minimum_should_match": "1"
    }
  },
  "highlight": {
    "pre_tags": [
      "<em>"
    ],
    "post_tags": [
      "</em>"
    ],
    "fragment_size": 200,
    "fields": {
      "calls.traceId": {}
    }
  }
}

2. 嵌套查询高亮

在嵌套查询时,如果使用普通高亮查询,会有一个问题,因为一个文档数据记录中可能会有多个对象,所以一条文档可能会有多个满足高亮的字段,而普通高亮只会把高亮的字段在数组中罗列出来,并不知道一条高亮字段属于文档中的哪个对象

普通DSL查询语句

{
  "from": 0,
  "size": 5000,
  "timeout": "2000ms",
  "query": {
    "bool": {
      "should": [
        {
          "nested": {
            "query": {
              "bool": {
                "must": [
                  {
                    "match_phrase": {
                      "calls.traceId": {
                        "query": "cb47bea067fc^1565266299866^564",
                        "slop": 0,
                        "zero_terms_query": "NONE",
                        "boost": 1
                      }
                    }
                  }
                ],
                "adjust_pure_negative": true,
                "boost": 1
              }
            },
            "path": "calls",
            "ignore_unmapped": false,
            "score_mode": "none",
            "boost": 1
          }
        }
      ],
      "adjust_pure_negative": true,
      "boost": 1,
      "minimum_should_match": "1"
    }
  },
  "highlight": {
    "pre_tags": [
      "<em>"
    ],
    "post_tags": [
      "</em>"
    ],
    "fragment_size": 200,
    "fields": {
      "calls.traceId": {}
    }
  }
}

查询结果:

"hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 2.0,
    "hits" : [
      {
        "_index" : "t_trace_index-2019.08.08.20",
        "_type" : "_doc",
        "_id" : "cb47bea067fc^1565266299866^564",
        "_score" : 2.0,
        "_routing" : "cb47bea067fc^1565266299866^564",
        "_source" : {
          "calls" : [
            {
              "traceId" : "cb47bea067fc^1565266299866^564"
            },
            {
              "traceId" : "cb47bea067fc^1565266299866^564"
            }
          ],
          "id" : "cb47bea067fc^1565266299866^564",
          "timestamp" : 1565268881001,
          "trace_join" : {
            "name" : "pdoc"
          },
          "type" : "pdoc"
        },
        "highlight" : {
          "calls.traceId" : [
            "<em>cb47bea067fc^1565266299866^564</em>",
            "<em>cb47bea067fc^1565266299866^564</em>"
          ]
        }
      }
    ]
}

这里对traceId字段使用了高亮查询,可以看到这里高亮匹配到了两条,而除了高亮字段外无任何信息,无法知道高亮语句属于文档数组中的哪个对象,这种高亮方法只适用于非嵌套查询,一条文档中一个对象,高亮字段只会有一个

嵌套查询高亮代码

HighlightBuilder highlightBuilder = new HighlightBuilder();
// 高亮字段
highlightBuilder.field("calls.bizParams");
// 高亮标签
highlightBuilder.preTags("<em>").postTags("</em>");
//highlightBuilder.order("score");
// 高亮内容长度
highlightBuilder.fragmentSize(200);
BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();
// 嵌套查询使用高亮
boolQueryBuilder.should(QueryBuilders.nestedQuery("calls", QueryBuilders.boolQuery().must(QueryBuilders.matchPhraseQuery("calls.bizParams", keyword)), ScoreMode.Avg).innerHit(new InnerHitBuilder().setHighlightBuilder(highlightBuilder)));
        

嵌套查询高亮DSL查询语句

"query": {
    "bool": {
      "must": [
        {
          "nested": {
            "query": {
              "bool": {
                "must": [
                  {
                    "term": {
                      "calls.traceId": {
                        "value": "c8fc4f6f0bcd^1565435961237^3980",
                        "boost": 1
                      }
                    }
                  }
                ],
                "adjust_pure_negative": true,
                "boost": 1
              }
            },
            "path": "calls",
            "ignore_unmapped": false,
            "score_mode": "avg",
            "boost": 1
          }
        }
      ],
      "filter": [
        {
          "nested": {
            "query": {
              "range": {
                "calls.ts": {
                  "from": 1564589746707,
                  "to": 1565590046000,
                  "include_lower": true,
                  "include_upper": true,
                  "boost": 1
                }
              }
            },
            "path": "calls",
            "ignore_unmapped": false,
            "score_mode": "none",
            "boost": 1
          }
        }
      ],
      "should": [
        {
          "nested": {
            "query": {
              "bool": {
                "must": [
                  {
                    "match_phrase": {
                      "calls.bizParams": {
                        "query": "input",
                        "slop": 0,
                        "zero_terms_query": "NONE",
                        "boost": 1
                      }
                    }
                  }
                ],
                "adjust_pure_negative": true,
                "boost": 1
              }
            },
            "path": "calls",
            "ignore_unmapped": false,
            "score_mode": "avg",
            "boost": 1,
            "inner_hits": {
              "ignore_unmapped": false,
              "from": 0,
              "size": 3,
              "version": false,
              "seq_no_primary_term": false,
              "explain": false,
              "track_scores": false,
              "highlight": {
                "pre_tags": [
                  "<em>"
                ],
                "post_tags": [
                  "</em>"
                ],
                "fragment_size": 200,
                "fields": {
                  "calls.bizParams": {}
                }
              }
            }
          }
        },
        {
          "nested": {
            "query": {
              "bool": {
                "must": [
                  {
                    "term": {
                      "calls.rpc": {
                        "value": "input",
                        "boost": 1
                      }
                    }
                  }
                ],
                "adjust_pure_negative": true,
                "boost": 1
              }
            },
            "path": "calls",
            "ignore_unmapped": false,
            "score_mode": "avg",
            "boost": 1
          }
        },
        {
          "nested": {
            "query": {
              "bool": {
                "must": [
                  {
                    "term": {
                      "calls.traceId": {
                        "value": "input",
                        "boost": 1
                      }
                    }
                  }
                ],
                "adjust_pure_negative": true,
                "boost": 1
              }
            },
            "path": "calls",
            "ignore_unmapped": false,
            "score_mode": "avg",
            "boost": 1
          }
        }
      ],
      "adjust_pure_negative": true,
      "minimum_should_match": "1",
      "boost": 1
    }
}

查询结果,为了减小篇幅,删除无意义字段:

{
  "took" : 42,
  "timed_out" : false,
  "_shards" : {
    "total" : 430,
    "successful" : 430,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 1,
      "relation" : "eq"
    },
    "max_score" : 11.434727,
    "hits" : [
      {
        "_index" : "t_trace_index-2019.08.11.15",
        "_type" : "_doc",
        "_id" : "c8fc4f6f0bcd^1565435961237^3980",
        "_score" : 11.434727,
        "_routing" : "c8fc4f6f0bcd^1565435961237^3980",
        "_source" : {
          "type" : "pdoc",
          "calls" : [
            {
              "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"OPER_ID":"10034571"}}""",
              "rpc" : "CSF_SEC_OPERM_OPIDQQUERY_002",
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "ts" : 1565507717426
            },
            {
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "rpc" : "ocrm_ICbossCSV_idCheck",
              "ts" : 1565507717915,
              "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RSP_JSON_STR":"{\"IdCheck\":{\"Seq\":\"10020190811151517510040\",\"CustomerName\":\"786382D36B599DF8D3C312272A75AD81\",\"IDCardType\":\"04\",\"IDCardNum\":\"99425ED800E46883C131C544E9F8BAD9\",\"ChannelId\":\"210000000100001\",\"MsOpcode\":\"C8000\"}}"}}"""
            },
            {
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "rpc" : "cust_IOneCardFiveUserCSV_idCheck",
              "ts" : 1565507717985,
              "bizParams" : """{"input":{"CERT_CODE":"523453","CODE_TYPE":"CM_CERT_TYPE_CHECKCODE","CUST_NAME":"对方八年","CERT_TYPE":"3","CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}"""
            },
            {
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "rpc" : "cust_IBackListCSV_queryBlackInfo",
              "bizParams" : """{"input":{"CERT_CODE":"523453","START_NUM":-1,"CERT_TYPE":3,"PARTY_NAME":"","END_NUM":-1,"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}""",
              "ts" : 1565507717360
            },
            {
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "rpc" : "cust_IRealNameCSV_getRealNameCountByPhoneOrIden",
              "ts" : 1565507717409,
              "bizParams" : """{"input":{"CERT_CODE":"523453","BILL_ID":"","CERT_TYPE":"3","CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}"""
            },
            {
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "rpc" : "CSF_RULE_COMMON_RULESCHECK_001",
              "ts" : 1565507717366,
              "bizParams" : """{"input":{"RULE_MAP":{"ORDER_OBJ_MAP":{"CUST_DC":{"CUST_CERT_TYPE":"3","CUST_NAME":"对方八年","CUST_CERT_CODE":"523453"}}},"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RULE_IDS":"100001049"}}"""
            },
            {
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "rpc" : "CSF_RULE_COMMON_RULESCHECK_001",
              "ts" : 1565507717992,
              "bizParams" : """{"input":{"RULE_MAP":{"ORDER_OBJ_MAP":{"CUST_DC":{"CUST_CERT_TYPE":"3","CUST_NAME":"对方八年","CUST_CERT_CODE":"523453"}}},"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RULE_IDS":"100060110"}}"""
            },
            {
              "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
              "rpc" : "/web-crm/",
              "ts" : 1565507718017
            }
          ],
          "id" : "c8fc4f6f0bcd^1565435961237^3980",
          "timestamp" : 1565507717426,
          "trace_join" : {
            "name" : "pdoc"
          }
        },
        "inner_hits" : {
          "calls" : {
            "hits" : {
              "total" : {
                "value" : 7,
                "relation" : "eq"
              },
              "max_score" : 9.85075E-6,
              "hits" : [
                {
                  "_index" : "t_trace_index-2019.08.11.15",
                  "_type" : "_doc",
                  "_id" : "c8fc4f6f0bcd^1565435961237^3980",
                  "_nested" : {
                    "field" : "calls",
                    "offset" : 0
                  },
                  "_score" : 9.85075E-6,
                  "_source" : {
                    "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"OPER_ID":"10034571"}}""",
                    "rpc" : "CSF_SEC_OPERM_OPIDQQUERY_002",
                    "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
                    "ts" : 1565507717426
                  },
                  "highlight" : {
                    "calls.bizParams" : [
                      """{"<em>input</em>":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"OPER_ID":"10034571"}}"""
                    ]
                  }
                },
                {
                  "_index" : "t_trace_index-2019.08.11.15",
                  "_type" : "_doc",
                  "_id" : "c8fc4f6f0bcd^1565435961237^3980",
                  "_nested" : {
                    "field" : "calls",
                    "offset" : 1
                  },
                  "_score" : 9.85075E-6,
                  "_source" : {
                    "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
                    "rpc" : "ocrm_ICbossCSV_idCheck",
                    "ts" : 1565507717915,
                    "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RSP_JSON_STR":"{\"IdCheck\":{\"Seq\":\"10020190811151517510040\",\"CustomerName\":\"786382D36B599DF8D3C312272A75AD81\",\"IDCardType\":\"04\",\"IDCardNum\":\"99425ED800E46883C131C544E9F8BAD9\",\"ChannelId\":\"210000000100001\",\"MsOpcode\":\"C8000\"}}"}}"""
                  },
                  "highlight" : {
                    "calls.bizParams" : [
                      """{"<em>input</em>":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RSP_JSON_STR":"{\"IdCheck\":{\"Seq\":\"10020190811151517510040\",\"CustomerName\":\"786382D36B599DF8D3C312272A75AD81\",\"IDCardType\":\"04\",\""""
                    ]
                  }
                },
                {
                  "_index" : "t_trace_index-2019.08.11.15",
                  "_type" : "_doc",
                  "_id" : "c8fc4f6f0bcd^1565435961237^3980",
                  "_nested" : {
                    "field" : "calls",
                    "offset" : 2
                  },
                  "_score" : 9.85075E-6,
                  "_source" : {
                    "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
                    "rpc" : "cust_IOneCardFiveUserCSV_idCheck",
                    "ts" : 1565507717985,
                    "bizParams" : """{"input":{"CERT_CODE":"523453","CODE_TYPE":"CM_CERT_TYPE_CHECKCODE","CUST_NAME":"对方八年","CERT_TYPE":"3","CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}"""
                  },
                  "highlight" : {
                    "calls.bizParams" : [
                      """{"<em>input</em>":{"CERT_CODE":"523453","CODE_TYPE":"CM_CERT_TYPE_CHECKCODE","CUST_NAME":"对方八年","CERT_TYPE":"3","CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}"""
                    ]
                  }
                }
              ]
            }
          }
        }
      }
    ]
  }
}

这里对bizParams字段使用嵌套高亮查询,注意看这里的结果和前面查询结果的区别,可以看到查询结果中有inner_hits这个字段

"inner_hits" : {
  "calls" : {
    "hits" : {
      "total" : {
        "value" : 7,
        "relation" : "eq"
      },
      "max_score" : 9.85075E-6,
      "hits" : [
        {
          "_index" : "t_trace_index-2019.08.11.15",
          "_type" : "_doc",
          "_id" : "c8fc4f6f0bcd^1565435961237^3980",
          "_nested" : {
            "field" : "calls",
            "offset" : 0
          },
          "_score" : 9.85075E-6,
          "_source" : {
            "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"OPER_ID":"10034571"}}""",
            "rpc" : "CSF_SEC_OPERM_OPIDQQUERY_002",
            "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
            "ts" : 1565507717426
          },
          "highlight" : {
            "calls.bizParams" : [
              """{"<em>input</em>":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"OPER_ID":"10034571"}}"""
            ]
          }
        },
        {
          "_index" : "t_trace_index-2019.08.11.15",
          "_type" : "_doc",
          "_id" : "c8fc4f6f0bcd^1565435961237^3980",
          "_nested" : {
            "field" : "calls",
            "offset" : 1
          },
          "_score" : 9.85075E-6,
          "_source" : {
            "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
            "rpc" : "ocrm_ICbossCSV_idCheck",
            "ts" : 1565507717915,
            "bizParams" : """{"input":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RSP_JSON_STR":"{\"IdCheck\":{\"Seq\":\"10020190811151517510040\",\"CustomerName\":\"786382D36B599DF8D3C312272A75AD81\",\"IDCardType\":\"04\",\"IDCardNum\":\"99425ED800E46883C131C544E9F8BAD9\",\"ChannelId\":\"210000000100001\",\"MsOpcode\":\"C8000\"}}"}}"""
          },
          "highlight" : {
            "calls.bizParams" : [
              """{"<em>input</em>":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"RSP_JSON_STR":"{\"IdCheck\":{\"Seq\":\"10020190811151517510040\",\"CustomerName\":\"786382D36B599DF8D3C312272A75AD81\",\"IDCardType\":\"04\",\""""
            ]
          }
        },
        {
          "_index" : "t_trace_index-2019.08.11.15",
          "_type" : "_doc",
          "_id" : "c8fc4f6f0bcd^1565435961237^3980",
          "_nested" : {
            "field" : "calls",
            "offset" : 2
          },
          "_score" : 9.85075E-6,
          "_source" : {
            "traceId" : "c8fc4f6f0bcd^1565435961237^3980",
            "rpc" : "cust_IOneCardFiveUserCSV_idCheck",
            "ts" : 1565507717985,
            "bizParams" : """{"input":{"CERT_CODE":"523453","CODE_TYPE":"CM_CERT_TYPE_CHECKCODE","CUST_NAME":"对方八年","CERT_TYPE":"3","CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}"""
          },
          "highlight" : {
            "calls.bizParams" : [
              """{"<em>input</em>":{"CERT_CODE":"523453","CODE_TYPE":"CM_CERT_TYPE_CHECKCODE","CUST_NAME":"对方八年","CERT_TYPE":"3","CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]}}}"""
            ]
          }
        }
      ]
    }
  }
}

这里面就是高亮命中的信息,每有一条高亮数据命中,在inner_hitshit数组中,都会有一条命中对象,相当于把数组中命中的对象字段高亮之后生成了一个新的对象,包括:

位置信息:

"_nested" : {
    "field" : "calls",
    "offset" : 0
}

offset:高亮命中数据在查询命中结果中的位置,这里表示高亮对象在查询结果中排在第一位,就可以根据这个位置对原来对象中的属性进行修改,例如使用高亮后字段替换原来的字段

高亮后的字段:

"highlight" : {
    "calls.bizParams" : [
      """{"<em>input</em>":{"CONTROL_IN_PARAM":{"DATA_STATE":["DATA_ALL"]},"OPER_ID":"10034571"}}"""
    ]
}


等其他的信息,这个可以按需了解

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转载自blog.csdn.net/SWPU_Lipan/article/details/99302009
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