一、封裝的查詢(xún)方法
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/*** solr查詢(xún)方法* @param client solr客戶(hù)端* @param query solr查詢(xún)對(duì)象* @return list集合* @throws solrserverexception * @throws ioexception*/public static list<map<string, object>> getsolrquery(httpsolrclient client, solrquery query) throws solrserverexception, ioexception{list<map<string, object>> list = null;//執(zhí)行查詢(xún)并返回結(jié)果queryresponse resp = client.query(query);solrdocumentlist results = resp.getresults();//獲取查詢(xún)到的數(shù)據(jù)總量long numfound = results.getnumfound();//判斷總量是否大于0，if(numfound <= 0) {//如果小于0，表示未查詢(xún)到任何數(shù)據(jù)，返回nullreturn null;}else {//如果大于0，表示有數(shù)據(jù)//創(chuàng)建list存儲(chǔ)每條數(shù)據(jù)list = new arraylist<>();//遍歷結(jié)果集for (solrdocument doc : results) {//得到每條數(shù)據(jù)的map集合map<string, object> map = doc.getfieldvaluemap();//添加到listlist.add(map);}//返回list集合return list;}} |
二、主函數(shù)
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
public static void main(string[] args) throws solrserverexception, ioexception {//創(chuàng)建solr客戶(hù)端連接httpsolrclient hsc = new httpsolrclient.builder(solr_url).build();//創(chuàng)建查詢(xún)對(duì)象solrquery query = new solrquery();//設(shè)置查詢(xún)?nèi)繑?shù)據(jù)的條件//query.setquery("*:*");query.setquery("id:1");list<map<string, object>> list = getsolrquery(hsc, query);if(list == null) {system.out.println("未查詢(xún)到任何結(jié)果");return;}for (map<string, object> map : list) {iterator<string> it = map.keyset().iterator();while(it.hasnext()) {string key = it.next();object value = map.get(key);system.out.println(key+"----"+value);}system.out.println("=======================================");} |
三、solr_url
//注這是一個(gè)人正確的url地址
如果url后邊不加表會(huì)報(bào)如下錯(cuò)誤：
以上這篇java操作solr實(shí)現(xiàn)查詢(xún)功能的實(shí)例就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持服務(wù)器之家。
原文鏈接：http://www.cnblogs.com/li-zx/archive/2017/11/16/7845904.html
