solr json ajax
用ajax去请求solr服务。返回json，然后解释。让solr返回json的参数是wt=json。然后javascript用evel()解释成对象。我的solr会返回：auother,title,introduce这几个域。先创建一个jsp或html，如：json.jsp
1.json.jsp关键的html内容
Chenlb:
作者
简介
标题
score
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, 共显示: "+j.response.numFound+"条记录, 总共有: "+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
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