6.分布式搜索elasticsearch java API ------批量添加删除索引

elasticsearch支持批量添加或删除索引文档，java api里面就是通过构造BulkRequestBuilder，然后把批量的index/delete请求添加到BulkRequestBuilder里面，执行BulkRequestBuilder。下面是个例子：

import static org.elasticsearch.common.xcontent.XContentFactory.*;

        BulkRequestBuilder bulkRequest = client.prepareBulk();

        bulkRequest.add(client.prepareIndex("twitter", "tweet", "1")
                .setSource(jsonBuilder()
                            .startObject()
                                .field("user", "kimchy")
                                .field("postDate", new Date())
                                .field("message", "trying out Elastic Search")
                            .endObject()
                          )
                );

        bulkRequest.add(client.prepareIndex("twitter", "tweet", "2")
                .setSource(jsonBuilder()
                            .startObject()
                                .field("user", "kimchy")
                                .field("postDate", new Date())
                                .field("message", "another post")
                            .endObject()
                          )
                );

        BulkResponse bulkResponse = bulkRequest.execute().actionGet();
        if (bulkResponse.hasFailures()) {
            //处理错误
        }

参考资料：http://www.elasticsearch.org/guide/reference/java-api/bulk.html