参考待整理：https://www.cnblogs.com/yzykkpl/p/10356258.html

 

 

annotation注解：

import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;/** * 自定义注解，实现主键自增 * @author sea * */@Target(ElementType.FIELD)@Retention(RetentionPolicy.RUNTIME)public @interface AutoIncKey {}

 

AutoIncKeyEventListener 注解监听器：

package com.sea.test.annotation;import java.lang.reflect.Field;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.mongodb.core.FindAndModifyOptions;import org.springframework.data.mongodb.core.MongoTemplate;import org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener;import org.springframework.data.mongodb.core.mapping.event.BeforeConvertEvent;import org.springframework.data.mongodb.core.query.Criteria;import org.springframework.data.mongodb.core.query.Query;import org.springframework.data.mongodb.core.query.Update;import org.springframework.stereotype.Component;import org.springframework.util.ReflectionUtils;/** * 监听器用于监听MongoEvent * ，该类继承AbstractMongoEventListener类，因为我们需要在JAVA对象转换成数据库对象的时候操作id字段实现id自增， * 所以覆盖onBeforeConvert方法（详见spring-data文档，https://docs.spring.io/spring-data/data-document/docs/current/reference/html/，5.11节） * @author sea * */@Componentpublic class AutoIncKeyEventListener extends AbstractMongoEventListener

 

 

序列id  

SeqInfo

import java.io.Serializable;public class SeqInfo implements Serializable {        private static final long serialVersionUID = 1L;    private  Long  seqId;    public Long getSeqId() {        return seqId;    }    public void setSeqId(Long seqId) {        this.seqId = seqId;    }    }