Question

我试图在REST Uri中使用StructuredQuery，如记录here。
当我使用Chrome中的Postman并请求查询URI时：

http://IPADDRESS:PORT/v1/search?structuredQuery={"query":{"or-query":{"queries":[{"and-query":{"queries":[ {"word-constraint-query":{"constraint-name":"bio","text":["product"]}}, {"value-constraint-query":{"constraint-name":"company","text":["MarkLogic"]}} ]}}, {"and-query":{"queries":[ {"element-constraint-query":{"constraint-name":"spoken","and-query": {"queries":[{"term-query":{"text":["fie"]}}]} }}, {"word-constraint-query":{"constraint-name":"stagedir","text":["fall"]}}, {"value-constraint-query":{"constraint-name":"person","text":["GRUMIO"]}} ]}}, {"and-query":{"queries":[ {"properties-query":{"term-query":{"text":["fish"]}}}, {"directory-query":{"uri":["/images/2012/02/27/"]},"infinite":true} ]}}, {"and-query":{"queries":[ {"collection-query":{"uri":["mlw2012"]}}, {"term-query":{"text":["fun"]}} ]}}]}}}

它给了我回复。

现在当我尝试在Java中实现它时，使用HttpClient它给了我400 Bad request error，Code：

CredentialsProvider credsProvider = new BasicCredentialsProvider();
query="http://192.168.192.110:8013/v1/search?structuredQuery=%7B%22query%22%3A%7B%22or-query%22%3A%7B%22queries%22%3A%5B%7B%22and-query%22%3A%7B%22queries%22%3A%5B%20%7B%22word-constraint-query%22%3A%7B%22constraint-name%22%3A%22bio%22%2C%22text%22%3A%5B%22product%22%5D%7D%7D%2C%20%7B%22value-constraint-query%22%3A%7B%22constraint-name%22%3A%22company%22%2C%22text%22%3A%5B%22MarkLogic%22%5D%7D%7D%20%5D%7D%7D%2C%20%7B%22and-query%22%3A%7B%22queries%22%3A%5B%20%7B%22element-constraint-query%22%3A%7B%22constraint-name%22%3A%22spoken%22%2C%22and-query%22%3A%20%7B%22queries%22%3A%5B%7B%22term-query%22%3A%7B%22text%22%3A%5B%22fie%22%5D%7D%7D%5D%7D%20%7D%7D%2C%20%7B%22word-constraint-query%22%3A%7B%22constraint-name%22%3A%22stagedir%22%2C%22text%22%3A%5B%22fall%22%5D%7D%7D%2C%20%7B%22value-constraint-query%22%3A%7B%22constraint-name%22%3A%22person%22%2C%22text%22%3A%5B%22GRUMIO%22%5D%7D%7D%20%5D%7D%7D%2C%20%7B%22and-query%22%3A%7B%22queries%22%3A%5B%20%7B%22properties-query%22%3A%7B%22term-query%22%3A%7B%22text%22%3A%5B%22fish%22%5D%7D%7D%7D%2C%20%7B%22directory-query%22%3A%7B%22uri%22%3A%5B%22%2Fimages%2F2012%2F02%2F27%2F%22%5D%7D%2C%22infinite%22%3Atrue%7D%20%5D%7D%7D%2C%20%7B%22and-query%22%3A%7B%22queries%22%3A%5B%20%7B%22collection-query%22%3A%7B%22uri%22%3A%5B%22mlw2012%22%5D%7D%7D%2C%20%7B%22term-query%22%3A%7B%22text%22%3A%5B%22fun%22%5D%7D%7D%20%5D%7D%7D%5D%7D%7D%7D"
    credsProvider.setCredentials(new AuthScope(IpAddress, port), new UsernamePasswordCredentials(user, password));

    DefaultHttpClient client = new DefaultHttpClient();
    client.setCredentialsProvider(credsProvider);

    HttpGet get = new HttpGet(query);
    ResponseHandler<String> handler = new BasicResponseHandler();
    HttpResponse resp = client.execute(get);

错误：

HTTP/1.1 400 Bad Request [Content-type: application/xml, Server: MarkLogic, Content-Length: 364, Connection: Keep-Alive, Keep-Alive: timeout=5]

我错过了什么？

提前致谢，
大地。

Answer 1

如果您打印出错误响应的正文，那么应该会提供更多信息。

也就是说，您可能需要考虑使用基于Apache HttpClient和Jersey Client构建的Java API，并为您处理HTTP交互。

Answer 2

您可以尝试在查询控制台中使用search:resolve测试结构化查询。要进行验证，您可以使用search:parse从查询文本构造结构化查询。您可能没有在选项节点中正确定义约束，这将使您有机会对其进行测试，并使用search:check-options确认您的选项节点已正确构建。您应该在REST服务上使用/v1/config/query/(default|{name})来安装与默认相同的选项节点，或使用options URL参数作为查询选项。通过这种方式，您可以确保所有已建立的约束，范围索引等，否则您将从REST界面获得“错误请求”响应。

Marklogic 400错误请求

2 个答案: