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}
三、Web调用
下面我们来看看在Web中如果调用商业逻辑层的全文检索功能。下面是处理用户请请的Action中关于搜索部分的源码：
package com.easyjf.news.action;
public class SearchAction implements IWebAction {
public Page doSearch(WebForm form,Module module)throws Exception
{
String key=CommUtil.null2String(form.get("v"));
key=URLDecoder.decode(URLEncoder.encode(key,"ISO8859_1"),"utf-8");
form.set("v",key);
form.addResult("v2",URLEncoder.encode(key,"utf-8"));
if(key.getBytes().length>2){
String orderBy=CommUtil.null2String(form.get("order"));
int currentPage=CommUtil.null2Int(form.get("page"));
int pageSize=CommUtil.null2Int(form.get("pageSize"));
if(currentPage<1)currentPage=1;
if(pageSize<1)pageSize=15;
SearchEngine search=new SearchEngine(key,orderBy,pageSize,currentPage);
search.getLuceneSearch().setIndexDir(Globals.APP_BASE_DIR "/WEB-INF/index");
search.doSearchByLucene();
IPageList pList=search.getResult();
if(pList!=null && pList.getRowCount()>0){
form.addResult("list",pList.getResult());
form.addResult("pages",new Integer(pList.getPages()));
form.addResult("rows",new Integer(pList.getRowCount()));
form.addResult("page",new Integer(pList.getCurrentPage()));
form.addResult("gotoPageHTML",CommUtil.showPageHtml(pList.getCurrentPage(),pList.getPages()));
}
else
{
form.addResult("notFound","true");//找不到数据
}
}
else
form.addResult("errMsg","您输入的关键字太短!");
form.addResult("hotSearch",SearchEngine.getHotSearch(20));
return null;
}
}
其中调用的SearchEngine类中有关Lucene部分的源码：
public class SearchEngine {
private MyRssSearch luceneSearch=new MyRssSearch();
public void doSearchByLucene()
{
SearchKey keyObj=readCache();
if(keyObj!=null){
result=luceneSearch.search(key,pageSize,currentPage);
if(updateStatus){
keyObj.setReadTimes(new Integer(keyObj.getReadTimes().intValue() 1));
keyObj.update();
}
}
else//缓存中没有该关键字信息,生成关键字搜索结果
{
keyObj=new SearchKey();
keyObj.setTitle(key);
keyObj.setLastUpdated(new Date());
keyObj.setReadTimes(new Integer(1));
keyObj.setStatus(new Integer(0));
keyObj.setSequence(new Integer(1));
keyObj.setVdate(new Date());
keyObj.save();
result=luceneSearch.search(key,pageSize,currentPage);;
}
}
}
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