问题描述
- java代码借助jena实现Sparql查询,报出一下错误,有遇到过的么?
-
Exception in thread "main" HttpException: HttpException: 502 Bad Gateway: HttpException: 502 Bad Gateway
at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:337)
at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:189)
at com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:144)
at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:133)
at com.chen.juan.SparqlDBpedia.sparqlQuery(SparqlDBpedia.java:78)
at com.chen.juan.SparqlDBpedia.main(SparqlDBpedia.java:24)
Caused by: HttpException: 502 Bad Gateway
at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:299)
... 5 more
时间: 2024-08-01 14:30:57