用ajax去請求solr服務。返回json，然后解釋。讓solr返回json的參數是wt=json。然后javascript用evel()解釋成對象。
我的solr會返回：auother,title,introduce這幾個域。先創建一個jsp或html，如：json.jsp
1.json.jsp關鍵的html內容
<form action="select/" name="f1" method="get" onsubmit="xmlhttpPost('/solr/select'); return false;" >
Chenlb:
<input type="text" name="q" size="80" value="文檔">
<input name="start" type="hidden" value="0">
<input name="rows" type="hidden" value="10">
<input name="indent" type="hidden" value="on">
<input name="wt" type="hidden" value="">
<input type="button" value=" 搜 索 " onclick="xmlhttpPost('/solr/select');">
<input type="button" value=" get json " onclick="document.forms['f1'].wt.value='json';document.forms['f1'].submit();">
<input type="button" value=" get xml " onclick="document.forms['f1'].wt.value='';document.forms['f1'].submit();">
</form>
<div style="background-color: #ccccff; height: 15px;"></div>
<p>
<div id="header"></div>
<div id="response"></div>
<table id="docs" class="tab" cellspacing="1">
<tr height="25" style="background-color: #cccccc; color: #0000ff;">
<td>作者</td>
<td>簡介</td>
<td>標題</td>
<td>score</td>
</tr>
</table>
2.javascript部分
function xmlhttpPost(strURL) {
var xmlHttpReq = false;
var self = this;
if (window.XMLHttpRequest) { // Mozilla/Safari
self.xmlHttpReq = new XMLHttpRequest();
}
else if (window.ActiveXObject) { // IE
self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}
var params = getstandardargs().concat(getquerystring());
var strData = params.join('&');
var header = document.getElementById("response");
header.innerHTML = strURL+'?'+strData;
self.xmlHttpReq.open('get', strURL+'?'+strData+'&time='+new Date().getTime(), true);
self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
self.xmlHttpReq.onreadystatechange = function() {
if (self.xmlHttpReq.readyState == 4) {
updatepage(self.xmlHttpReq.responseText);
}
}
self.xmlHttpReq.send(null);
}
function getstandardargs() {
var params = [
'wt=json'
, 'indent=on'
, 'hl=true'
, 'hl.fl='
, 'fl=*,score'
, 'start=0'
, 'rows=10'
];
return params;
}
function getquerystring() {
var form = document.forms['f1'];
var query = form.q.value;
qstr = 'q=' + encodeURI(query); //escape
return qstr;
}
// this function does all the work of parsing the solr response and updating the page.
function updatepage(str){
//document.getElementById("response").innerHTML = str;
var rsp = eval("("+str+")"); // use eval to parse Solr's JSON response
parse(rsp);
}
function parse(j) {
var header = document.getElementById("header");
var rh = j.responseHeader;
var header_str = " 搜索: \""+rh.params.q+"\", 花了: "+rh.QTime+"ms, 共顯示: "+j.response.numFound+"條記錄, 總共有: "+rh.params.rows;
header.innerHTML = header_str;
var docs = j.response.docs;
var tab = document.getElementById("docs");
for(; tab.rows.length >1; ) {
tab.deleteRow(-1);
}
var tr;
var td;
for(var i=0; i<docs.length; i++) {
tr = tab.insertRow(-1);
td = tr.insertCell(-1);
td.innerHTML = docs[i].author;
td = tr.insertCell(-1);
td.innerHTML = docs[i].introduce;
td = tr.insertCell(-1);
td.innerHTML = docs[i].title;
td = tr.insertCell(-1);
td.innerHTML = docs[i].score;
}
}
3.現在可以搜索了。
http://localhost:8080/solr/json.jsp
solr怎么部署到Tomcat里請看：
http://m.tkk7.com/chenlb/archive/2008/03/25/188459.html
posted on 2008-03-28 17:33
流浪汗 閱讀(2088)
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