Elasticsearch学习(4) spring boot整合Elasticsearch的聚合操作

  之前已将spring boot原生方式介绍了，接下将结介绍的是Elasticsearch聚合操作。聚合操作一般来说是解决一下复杂的业务，比如mysql中的求和和分组，由于博主踩的坑比较多，所以博客可能更多的会介绍这些坑。

一、application.properties配置文件

##端口号
server.port=8880
##es地址
spring.data.elasticsearch.cluster-nodes =127.0.0.1:9300

二、创建一个Bean层

import org.springframework.data.elasticsearch.annotations.Document;

@Document(indexName = "article",type = "center")
public class Zoo {
            private int id;
            private String animal;
            private Integer num;
            private String  breeder;
            public int getId() {
                return id;
            }
            public void setId(int id) {
                this.id = id;
            }
            public String getAnimal() {
                return animal;
            }
            public void setAnimal(String animal) {
                this.animal = animal;
            }
            public Integer getNum() {
                return num;
            }
            public void setNum(Integer num) {
                this.num = num;
            }
            public String getBreeder() {
                return breeder;
            }
            public void setBreeder(String breeder) {
                this.breeder = breeder;
            }
            public Zoo(int id, String animal, Integer num, String breeder) {
                super();
                this.id = id;
                this.animal = animal;
                this.num = num;
                this.breeder = breeder;
            }
            public Zoo() {
                super();
            }
            
}

bean层代码