solr QueryResponse
最近开发，使用了solr，发现这个东东真是方便。很早就听说了，但是一直觉得配置较难，而且需要学习封装后的组件本来就要费时间，所以知道将lucene弄个熟练后才开始学习solr。最近写了这样的一段代码，
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[*]SolrDocumentList sdl = response.getResults();
[*] len = (int) sdl.getNumFound();
[*] System.out.println(len);
[*] for(int i = 0; i < len; i++)
[*] {
[*] SolrDocument d = sdl.get(i);
[*] for(Iterator j = d.iterator(); j.hasNext(); )
[*] {
[*] hits.add((String)(j.next().getValue() ) );
[*] }
[*] }
SolrDocumentList sdl = response.getResults(); len = (int) sdl.getNumFound(); System.out.println(len); for(int i = 0; i < len; i++) { SolrDocument d = sdl.get(i); for(Iterator j = d.iterator(); j.hasNext(); ) { hits.add((String)(j.next().getValue() ) ); } } 结果出现： index out of boundary的错误。原来getNumFound获得的是整个的查询数量。
而sdl中仅仅包含在查询参数rows指定的文档个数。而rows默认是10，所以这里就出现越界错误了。
改成这样就没有问题了：
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[*]SolrDocumentList sdl = response.getResults();
[*] len = (int) sdl.getNumFound();
[*] System.out.println(len);
[*] for(int i = 0; i < perPage; i++)
[*] {
[*] SolrDocument d = sdl.get(i);
[*] for(Iterator j = d.iterator(); j.hasNext(); )
[*] {
[*] hits.add((String)(j.next().getValue() ) );
[*] }
[*] }
SolrDocumentList sdl = response.getResults(); len = (int) sdl.getNumFound(); System.out.println(len); for(int i = 0; i < perPage; i++) { SolrDocument d = sdl.get(i); for(Iterator j = d.iterator(); j.hasNext(); ) { hits.add((String)(j.next().getValue() ) ); } } 新的项目基于solr开发，搜索更加灵活，更加方便了用户。
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