java 连接操作elasticsearch（二）

• 判断索引是否存在

    /**
     * 判断索引是否存在
     *
     * @param index
     *            索引名，类似数据库名
     * @return
     */
    public static boolean isIndexExist(String index) {
        IndicesExistsRequest request = new IndicesExistsRequest(index);
        IndicesExistsResponse response = ES_Utils.getAdminClient().exists(request).actionGet();
        if (response.isExists()) {
            return true;
        }
        return false;
    }

• 删除索引

/**
     * 删除索引
     * 
     * @param index
     *            索引名，类似数据库名
     * @return
     */
    public static boolean deleteIndex(String index) throws RuntimeException {
        if (!isIndexExist(index)) {
            return true;
        }
        try {
            DeleteIndexResponse deleteIndexResponse = ES_Utils.getAdminClient().prepareDelete(index).execute()
                    .actionGet();
            boolean isIndexDeleted = deleteIndexResponse.isAcknowledged();
            if (isIndexDeleted) {
                LOGGER.info("索引 " + index + " 删除成功！");
            } else {
                LOGGER.info("索引 " + index + " 删除失败！");
            }
            return deleteIndexResponse.isAcknowledged();
        } catch (Exception e) {

            throw new RuntimeException(e.getMessage());
        }
    }

• 创建索引

/**
     * 创建索引
     * 
     * @param index
     *            索引名，类似数据库名
     * @param shards
     *            切片数
     * @param replicas
     *            副本数
     * @return
     */
    public static boolean createIndex(String index, int shards, int replicas) {
        if (isIndexExist(index)) {
            // 索引库存在则删除索引
            deleteIndex(index);
        }
        Settings settings = Settings.builder().put("index.number_of_shards", shards)
                .put("index.number_of_replicas", replicas).build();
        CreateIndexResponse createIndexResponse = ES_Utils.getAdminClient().prepareCreate(index.toLowerCase())
                .setSettings(settings).execute().actionGet();
        boolean isIndexCreated = createIndexResponse.isAcknowledged();
        if (isIndexCreated) {
            LOGGER.info("索引 " + index + " 创建成功！");
        } else {
            LOGGER.info("索引 " + index + " 创建失败！");
        }
        return isIndexCreated;
    }

• 索引中创建结构mapping

/**
     * 索引中创建结构mapping
     * 
     * @param index
     *            索引名，类似数据库名
     * @param type
     *            类型，类似表名
     * @param mapping
     *            表结构mapping
     * @return
     * @throws IOException
     */
    public static boolean putMapping(String index, String type, XContentBuilder mapping) throws IOException {
        if (!isIndexExist(index)) {
            LOGGER.info("创建索引库" + index + "mapping" + mapping + "结构失败,索引库不存在!");
            return false;
        }
        // 添加mapping绑定到 index
        PutMappingRequest putMappingRequest = Requests.putMappingRequest(index).type(type).source(mapping);

        PutMappingResponse putMappingResponse = ES_Utils.getAdminClient().putMapping(putMappingRequest).actionGet();

        boolean isPutMapping = putMappingResponse.isAcknowledged();

        if (isPutMapping) {
            LOGGER.info("索引: " + index + "类型: " + type + " 的Mapping创建成功！");
        } else {
            LOGGER.info("索引: " + index + "类型: " + type + " 的Mapping创建失败！");
        }
        return isPutMapping;
    }

    /**
     * 索引中创建mapping
     * 
     * @param mapping
     * @return 
     * @return
     */
    public static void setTvMapping(String indexName, String typeName) {
        XContentBuilder mapping = null;
        try {
            mapping = XContentFactory.jsonBuilder()
                    .startObject()
                    .startObject("properties")
                    .startObject("id")
                    .field("type", "keyword")
                    .endObject()
                    .startObject("file_name")
                    .field("type", "keyword")
                    .endObject()
                    .startObject("file_time")
                    .field("type", "date")
                    .field("format", "yyyy-MM-dd")
                    .endObject()
                    .startObject("characters")
                    .field("type", "text")
                    .field("analyzer", "ik_smart")
                    .field("search_analyzer", "ik_smart")
                    .endObject()
                    .startObject("language_type")
                    .field("type", "keyword")
                    .endObject()
                    .startObject("create_by")
                    .field("type", "keyword")
                    .endObject()
                    .startObject("create_date")
                    .field("type", "date")
                    .field("format", "yyyy-MM-dd HH:mm:ss")                
                    .endObject()
                    .startObject("update_by")
                    .field("type", "keyword")
                    //.field("type", "keyword")
                    .endObject()
                    .startObject("update_date")
                    .field("type", "date")
                    .field("format", "yyyy-MM-dd HH:mm:ss")
                    .endObject()
                    .startObject("remarks")
                    .field("type", "keyword")
                    .endObject()
                    .startObject("del_flag")
                    .field("type", "keyword")
                    .endObject()
                    .startObject("time_long")
                    .field("type", "keyword")
                    .endObject()
                    .startObject("timemark")
                    .field("type", "text")
                    .endObject()
                    .endObject()
                    .endObject();    
            ES_Utils.putMapping(indexName, typeName, mapping);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

• es中的增删改

/**
     * 插入单条数据prepareIndex
     * 
     * @param jsonObject
     *            json对象
     * @param index
     *            索引名，类似数据库名
     * @param type
     *            类型，类似表名
     * @param id
     *            数据id
     * @return
     */
    public static void insertData(JSONObject jsonObject, String index, String type, String id) {
        try {
            IndexResponse indexResponse = ES_Utils.getSingleClient().prepareIndex(index, type, id).setSource(jsonObject)
                    .get();
            LOGGER.info("插入数据状态-status:{},id:{}", indexResponse.status(), indexResponse.getId());
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage());
        }
    }

    /**
     * 通过ID 更新数据prepareUpdate
     *
     * @param jsonObject
     *            要增加的数据
     * @param index
     *            索引，类似数据库名
     * @param type
     *            类型，类似表名
     * @param id
     *            数据ID
     * @return
     */
    public static String updateDataById(JSONObject jsonObject, String index, String type, String id) {
        try {
            UpdateResponse updateResponse = ES_Utils.getSingleClient().prepareUpdate(index, type, id).setDoc(jsonObject)
                    .get();
            RestStatus status = updateResponse.status();
            LOGGER.info("更新数据状态-status:{},id:{}", updateResponse.status(), updateResponse.getId());
            return status.toString();
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage());
        }
    }

    /**
     * 删除索引中的文档prepareDelete
     * 
     * @param index
     *            索引，类似数据库名
     * @param type
     *            类型，类似表名
     * @param id
     */
    public static void deleteData(String index, String type, String id) {
        try {
            DeleteResponse deleteResponse = ES_Utils.getSingleClient().prepareDelete(index.toLowerCase(), type, id)
                    .execute().actionGet();
            // RestStatus status = deleteResponse.status();
            LOGGER.info("删除数据状态-status:{},id:{}", deleteResponse.status(), deleteResponse.getId());
        } catch (Exception e) {
            throw new RuntimeException(e.getMessage());
        }
    }