Elasticsearch-1.2.1 client connection demo

1. Download the zip package of the elasticsearch-1.2.1, decompress it, and double-clickElasticsearch. bat(For Windows) Start the server (Listening to port 9200 by default)

Access http: // localhost: 9200. If the following JSON data is displayed, the startup is successful.

 

2. Sample Code for client connection:

 

Package COM. jiaoyiping. othersimple;/*** created with intellij idea. * User: Jiao Yiping * Date: 14-7-8 * Time: * to change this template use file | Settings | file templates. */import Java. util. arraylist; import Java. util. list; import Org. elasticsearch. action. index. indexrequestbuilder; import Org. elasticsearch. action. index. indexresponse; import Org. elasticsearch. action. search. searchresponse; import Org. elasticsearch. client. client; import Org. elasticsearch. client. transport. transportclient; import Org. elasticsearch. common. transport. inetsockettransportaddress; import Org. elasticsearch. index. query. querybuilder; import Org. elasticsearch. index. query. querybuilders; import Org. elasticsearch. search. searchhit; import Org. elasticsearch. search. searchhits; import Org. slf4j. logger; import Org. slf4j. loggerfactory; public class elasticsearchhandler {logger = loggerfactory. getlogger (elasticsearchhandler. class); Private Client client; Public elasticsearchhandler () {// use the local machine as the node this ("127.0.0.1");} public elasticsearchhandler (string IPaddress) {client = new transportclient (). addtransportaddress (New inetsockettransportaddress (IPaddress, 9300);}/*** @ Param jsondata JSON-format data set ** @ return */Public void createindexresponse (string indexname, string type, list <string> jsondata) {// note the following when creating an index database. setrefresh (true) must be set here, otherwise the data indexrequestbuilder requestbuilder = client cannot be found during the first index creation. prepareindex (indexname, type ). setrefresh (true); For (INT I = 0; I <jsondata. size (); I ++) {requestbuilder.setsource(jsondata.get( I )cmd.exe cute (). actionget () ;}/ *** create Index * Param client * @ Param jsondata * @ return */Public indexresponse createindexresponse (string indexname, string type, string jsondata) {indexresponse response = client. prepareindex (indexname, type ). setsource (jsondata ). execute (). actionget (); return response ;} /*** execute the search * @ Param querybuilder * @ Param indexname * @ Param type * @ return */public list <medicine> searcher (querybuilder, string indexname, string type) {list <medicine> List = new arraylist <medicine> (); searchresponse = client. preparesearch (indexname ). settypes (type ). setquery (querybuilder ). execute (). actionget (); searchhits hits = searchresponse. gethits (); system. out. println ("number of records queried =" + hits. gettotalhits (); searchhit [] searchhists = hits. gethits (); If (searchhists. length> 0) {for (searchhit hit: searchhists) {INTEGER id = (integer) hit. getsource (). get ("ID"); string name = (string) hit. getsource (). get ("name"); string function = (string) hit. getsource (). get ("funciton"); list. add (new medicine (ID, name, function) ;}} client. close (); // close the connection (if it is not closed here, it will report: the remote host forcibly closes a connection) return list;} public static void main (string [] ARGs) {elasticsearchhandler eshandler = new elasticsearchhandler (); List <string> jsondata = DataFactory. getinitjsondata (); string indexname = "indexdemo"; string type = "typedemo"; // Add to index // eshandler. createindexresponse (indexname, type, jsondata); // query condition querybuilder = querybuilders. querystring ("Name: Name"); List <medicine> result = eshandler. searcher (querybuilder, indexname, type); For (INT I = 0; I <result. size (); I ++) {fig = result. get (I); system. out. println ("(" + medicine. GETID () + ") Name:" + medicine. getname () + "\ t" + medicine. getfunction ());}}}