如何更新文档而不丢失字段？
CommonsHttpSolrServer server = new CommonsHttpSolrServer("http://localhost:8983/solr/");
SolrInputDocument doc1 = new SolrInputDocument();
doc1.addField("id", "id1");
doc1.addField("name", "doc1");
doc1.addField("price", new Float(10));
SolrInputDocument doc2 = new SolrInputDocument();
doc2.addField("id", "id1");
doc2.addField("name", "doc2");
server.add(doc1);
server.add(doc2);
server.commit();
SolrQuery query = new SolrQuery();
query.setQuery("id:id1");
query.addSortField("price", SolrQuery.ORDER.desc);
QueryResponse rsp = server.query(query);
Iterator<SolrDocument> iter = rsp.getResults().iterator();
while(iter.hasNext()){
SolrDocument doc = iter.next();
Collection fieldNames = doc.getFieldNames();
Iterator<String> fieldIter = fieldNames.iterator();
StringBuffer content = new StringBuffer("");
while(fieldIter.hasNext()){
String field = fieldIter.next();
content.append(field+":"+doc.get(field)).append(" ");
//System.out.println(field);
}
System.out.println(content);
}
问题是我想得到结果“id:id1 name:doc2 Price:10.0”，但输出是“id:id1 name:doc2”... 所以我想知道如果我想得到“id:id1 name:doc2 Price:10.0”的结果，我该如何修改我的编程？
CommonsHttpSolrServer server = new CommonsHttpSolrServer("http://localhost:8983/solr/");
SolrInputDocument doc1 = new SolrInputDocument();
doc1.addField("id", "id1");
doc1.addField("name", "doc1");
doc1.addField("price", new Float(10));
SolrInputDocument doc2 = new SolrInputDocument();
doc2.addField("id", "id1");
doc2.addField("name", "doc2");
server.add(doc1);
server.add(doc2);
server.commit();
SolrQuery query = new SolrQuery();
query.setQuery("id:id1");
query.addSortField("price", SolrQuery.ORDER.desc);
QueryResponse rsp = server.query(query);
Iterator<SolrDocument> iter = rsp.getResults().iterator();
while(iter.hasNext()){
SolrDocument doc = iter.next();
Collection fieldNames = doc.getFieldNames();
Iterator<String> fieldIter = fieldNames.iterator();
StringBuffer content = new StringBuffer("");
while(fieldIter.hasNext()){
String field = fieldIter.next();
content.append(field+":"+doc.get(field)).append(" ");
//System.out.println(field);
}
System.out.println(content);
}
The question is that I want to get the result "id:id1 name:doc2 price:10.0", but the output is "id:id1 name:doc2"...
So I want to know if I want to get the result as "id:id1 name:doc2 price:10.0", how can I modify my programming?
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当您添加具有相同 id 的文档时。您基本上是在添加同一个文档两次。
Solr 将更新/覆盖该文档。更新基本上就是删除和添加。
由于您使用相同 id 添加的第二个文档没有价格字段，因此不会添加它，并且您不会在索引中找到它。
当您添加回文档时，您需要更改所有字段并保持不变。
As you are adding the documents with same id. You are basically adding a same document twice.
Solr will update/overwrite the document. updated is basically delete and add.
As the second document you added with the same id does not have the price field, it won't be added and you wont find it the index.
you would need to have all the fields changed and unchanged when you are adding back the document.