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ES如何打印DSL

article 2025/3/4 20:25:38

看了一下官网版本已经来到了8.17

正常打印似乎不行，突破的地方则是藏在@JsonpDeserializable 这个注解上；

@JsonpDeserializable
public class SearchRequest

因此只有反序列化出来之后才能打印，似乎就这么简单，看源码或许能更快的解决问题

方法一查询打印

SearchRequest.Builder builder = new SearchRequest.Builder();
builder.query(q -> q.bool(boolQuery));
SearchRequest build = builder.build();
log.info("search request:【{}】", searchDSL(build));

    public String searchDSL(SearchRequest searchRequest) {
        // 创建 JSON 生成器和 JSON 映射器
        try (StringWriter writer = new StringWriter();
             JsonGenerator generator = Json.createGenerator(writer)
        ) {
            JsonpMapper mapper = new JacksonJsonpMapper();
            searchRequest.serialize(generator, mapper);
            generator.close();
            return writer.toString();
        } catch (Exception e) {
            log.error("search exception", e);
        }
        return null;
    }

打印es请求日志，在application.properties中添加或者放到yaml 文件中

logging.level.org.elasticsearch.client.RestClient=DEBUG

效果

2025-02-26T22:59:26.458+08:00 INFO 35528 --- [unique-search] [nio-8080-exec-4] c.u.framework.common.utils.EsClient : search request:【{"query":{"bool":{"must":[{"term":{"id":{"value":"1"}}},{"term":{"edition":{"value":"工信部出版社"}}},{"fuzzy":{"bookName":{"value":"我"}}}]}}}】
2025-02-26T22:59:26.594+08:00 DEBUG 35528 --- [unique-search] [nio-8080-exec-4] org.elasticsearch.client.RestClient : request [POST https://localhost:9200/textbook/_search?typed_keys=true] returned [HTTP/1.1 200 OK]

方式二 AOP打印

使用aop对调用的方法进行处理；

import co.elastic.clients.elasticsearch.core.SearchRequest;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;

@Aspect
@Component
@Slf4j
public class WebLogAspect {

    @Pointcut("execution(public * co.elastic.clients.elasticsearch.ElasticsearchClient.search(..))")
    public void before() {

    }

    @Before("before()")
    public void logRequest(JoinPoint joinPoint) {
        Object[] args = joinPoint.getArgs();
        if (args.length > 0 && args[0] instanceof SearchRequest) {
            SearchRequest searchRequest = (SearchRequest) args[0];
            log.info("请求参数: {}", searchRequest);
        }
    }
}

效果

2025-03-01T18:23:02.180+08:00 INFO 30812 --- [unique-search] [nio-8080-exec-4] c.u.framework.common.aop.WebLogAspect : 请求参数: SearchRequest: POST /textbook/_search?typed_keys=true {"from":0,"query":{"bool":{"must":[{"wildcard":{"email":{"value":"*qq.com"}}}]}},"size":10,"sort":[{"id":{"order":"desc"}}]}

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