spring-boot-starter-data-elasticsearch实现es的增删查改

首先，必须吐槽一下，springboot这个elasticsearch包对于elasticsearch的支持十分不友好，目前只支持很低版本的elasticsearch，若是有哪位大牛知道如何兼容更高版本的elasticsearch，欢迎给我留言。java

es下载地址：https://www.elastic.co/downloads/elasticsearchnode

我测试的es版本是2.4.5，spring-boot-starter-data-elasticsearch不支持过高版本的elasticsearch。spring

另外，我是在windows下安装的，在官网下载好zip包后，到bin文件夹下，运行elasticsearch.bat，测试：http://localhost:9200/,能正确显示版本就能够了。windows

安装好后，咱们在pom.xml文件添加依赖api

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
            <version>1.5.10.RELEASE</version>
        </dependency>

在properties文件中添加es设置：

spring.data.elasticsearch.cluster-name=elasticsearch es默认 spring.data.elasticsearch.cluster-nodes= 127.0.0.1:9300 es默认

实体类：springboot

@Document(indexName = "monitoralarm", type = "monitorAlarms")//加上了@Document注解以后，默认状况下这个实体中全部的属性都会被创建索引、而且分词 public class MonitorAlarmVO implements Serializable { @Id private Long id; private String uniqueKey; private Long monitoryPointId; private int modelDivisionType; private Long groupId; private int type; private int status; private String serverHost; private String data; private int picWidth; private int picHeight; private String objects; private Date alarmTime; private Date createTime; private boolean isRemove; private Date removeTime; }

接口：app

import org.springframework.data.elasticsearch.repository.ElasticsearchRepository; public interface MonitorAlarmRepository extends ElasticsearchRepository<MonitorAlarmVO, Long> { //Page<MonitorAlarmVO> findByGroupId(Long groupId);
 }

controller：socket

public class MonitorAlarmController { @Autowired private MonitorAlarmRepository monitorAlarmRepository; //============================elasticsearch
    /** * 一、根据id查 * @param id * @return
     */ @GetMapping("/esById/{id}") public MonitorAlarmVO getBookById(@PathVariable Long id) { return monitorAlarmRepository.findOne(id); } /** * 二、查 ++:全文检索（根据整个实体的全部属性，可能结果为0个） * @param key * @return
     */ @GetMapping("/esByKey/{key}") public List<MonitorAlarmVO> testSearch(@PathVariable String key) { QueryStringQueryBuilder builder = new QueryStringQueryBuilder(key); Iterable<MonitorAlarmVO> searchResult = monitorAlarmRepository.search(builder); Iterator<MonitorAlarmVO> iterator = searchResult.iterator(); List<MonitorAlarmVO> list = new ArrayList<MonitorAlarmVO>(); while (iterator.hasNext()) { list.add(iterator.next()); } return list; } /** * 三、查 +++：分页、分数、分域（结果一个也很多） * @param page * @param size * @param q * @return * @return
     */ @GetMapping("/{page}/{size}/{key}") public List<MonitorAlarmVO> searchCity(@PathVariable Integer page, @PathVariable Integer size, @PathVariable String key) { // 分页参数
        Pageable pageable = new PageRequest(page, size); // 分数，并自动按分排序
        FunctionScoreQueryBuilder functionScoreQueryBuilder = QueryBuilders.functionScoreQuery() .add(QueryBuilders.boolQuery().should(QueryBuilders.matchQuery("name", key)), ScoreFunctionBuilders.weightFactorFunction(1000)) // 权重：name 1000分
                .add(QueryBuilders.boolQuery().should(QueryBuilders.matchQuery("message", key)), ScoreFunctionBuilders.weightFactorFunction(100)); // 权重：message 100分 // 分数、分页
        SearchQuery searchQuery = new NativeSearchQueryBuilder().withPageable(pageable) .withQuery(functionScoreQueryBuilder).build(); Page<MonitorAlarmVO> searchPageResults = monitorAlarmRepository.search(searchQuery); return searchPageResults.getContent(); } /** * 四、增 * @param monitorAlarmVO * @return
     */ @PostMapping("/esInsert") public MonitorAlarmVO insertBook(MonitorAlarmVO monitorAlarmVO) { monitorAlarmRepository.save(monitorAlarmVO); return monitorAlarmVO; } /** * 五、删 id * @param id * @return
     */ @DeleteMapping("/esDelete/{id}") public MonitorAlarmVO insertBook(@PathVariable Long id) { MonitorAlarmVO monitorAlarmVO = monitorAlarmRepository.findOne(id); monitorAlarmRepository.delete(id); return monitorAlarmVO; } /** * 六、改 * @param monitorAlarmVO * @return
     */ @PutMapping("/esUpdate") public MonitorAlarmVO updateBook(MonitorAlarmVO monitorAlarmVO) { monitorAlarmRepository.save(monitorAlarmVO); return monitorAlarmVO; } //============================elasticsearch
}

好的，咱们启动试试，报了一个错误，提示以下：elasticsearch

threw exception; nested exception is java.lang.NoSuchMethodError: org.jboss.netty.channel.socket.nio.NioWorker

这个是由于个人项目里的dubbo/zookeeper的netty包和es的netty包冲突了致使启动不了，解决方法是排除其中一个的netty包，我这里选择排除dubbo和zookeeper的netty包试试，可是后面发现排除了netty包会致使dubbo出错，有一箭双鵰的办法麻烦给我留言下。

以下：

<dependency>
            <groupId>com.alibaba.spring.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>netty</artifactId>
                    <groupId>org.jboss.netty</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>io.netty</groupId>
                    <artifactId>netty</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

最后，咱们能够启动项目，访问试试了。spring-boot