Java建立索引

建立索引前需要建立elasticsearch客戶端，可檢視Elasticsearch Java API 的使用（1）—建立客戶端

public class EsIndex{
    public void CreateIndex(TransportClient client){
        CreateIndexRequestBuilder  cib=client.admin()
                .indices().prepareCreate("pointdata");
        XContentBuilder mapping = XContentFactory.jsonBuilder()
                .startObject()
                    .startObject("properties"
 
) //設定之定義欄位
                      .startObject("pointid")
                        .field("type","string") //設定資料型別
                      .endObject()
                      .startObject("pointvalue")
                         .field("type","string")
                      .endObject()
                      .startObject("inputtime"
 
)
                         .field("type","date")  //設定Date型別
                         .field("format","yyyy-MM-dd HH:mm:ss") //設定Date的格式
                      .endObject()
                  .endObject()
                .endObject();
        cib.addMapping("pointdata", mapping);   
        cib.execute().actionGet();
    }
}