如何從Java代碼調用CouchDB視圖？

Question

我從我的Java代碼中調用bedDB視圖，代碼如下。

我將CouchDB View URL傳遞給HttpGet（）方法，並且能夠獲取數據。

    HttpGet get = new HttpGet("http://localhost:5984/tp/_design/tp/_view/tp?startkey=1388607960000");

        HttpResponse response = httpclient.execute(get);

        HttpEntity entity=response.getEntity();

        InputStream instream = entity.getContent();

        BufferedReader reader = new BufferedReader(new InputStreamReader(instream));

        String strdata = null;

        String jsonString = "" ;

        while( (strdata =reader.readLine())!=null)
        {
            jsonString += strdata;
        }

但是現在需求已更改，想將一個更多的參數傳遞給View URL，如下所示：

   http://localhost:5984/tp/_design/tp/_view/tp?startkey=1388607960000&endkey={}

此處endkey確實包含任何數據，但必須將endkey值傳遞為{} 。 當我通過endkey={} ，出現如下錯誤：

   Exception in thread "main" java.lang.IllegalArgumentException: Illegal character in query at index 97: http://localhost:5984/tp/_design/tp/_view/tp?startkey=1388607960000&endkey={}
at java.net.URI.create(URI.java:859)
at org.apache.http.client.methods.HttpGet.<init>(HttpGet.java:72)
at couch.TripViewExample.viewsDemo(TripViewExample.java:26)
at couch.TripViewExample.main(TripViewExample.java:18)
    Caused by: java.net.URISyntaxException: Illegal character in query at index 97:           

    http://localhost:5984/tp/_design/tp/_view/tp?startkey=1388607960000&endkey={}
 at java.net.URI$Parser.fail(URI.java:2829)
 at java.net.URI$Parser.checkChars(URI.java:3002)
at java.net.URI$Parser.parseHierarchical(URI.java:3092)
at java.net.URI$Parser.parse(URI.java:3034)
at java.net.URI.<init>(URI.java:595)
at java.net.URI.create(URI.java:857)

誰能幫我解決錯誤？？？

Answer 1

感謝您的回復...我沒有像下面那樣傳遞參數，而是像現在這樣工作。

    HttpGet get = new HttpGet("http://localhost:5984/tp/_design/tp/_view/tp?startkey=1388607960000");
    HttpParams params=new BasicHttpParams();
    System.out.println(epoch);
    params.setParameter("endkey", "{}");
    get.setParams(params);

Answer 2

建議您使用像jcouchDB這樣的庫，Jcouchdb提供了許多將Java類用作！CouchDB文檔的方法http://code.google.com/p/jcouchdb/wiki/Tutorial