mongoTemplate 保存数据时去掉

mongoTemplate 保存数据时去掉_class

新建一个MongoConfig类放在Config包下 package com.xxx.xxx.config; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationListener; import org.springframework.context.annotation.Configuration; import org.springframework.context.event.ContextRefreshedEvent; import org.springframework.data.mongodb.core.MongoTemplate; import org.springframework.data.mongodb.core.convert.DefaultMongoTypeMapper; import org.springframework.data.mongodb.core.convert.MappingMongoConverter; import org.springframework.data.mongodb.core.convert.MongoConverter; /** * MongoDB配置类 * */ @Configuration public class MongoConfig implements ApplicationListener<ContextRefreshedEvent> { @Autowired MongoTemplate mongoTemplate; @Override public void onApplicationEvent(ContextRefreshedEvent contextRefreshedEvent) { MongoConverter converter = mongoTemplate.getConverter(); if (converter.getTypeMapper().isTypeKey("_class")) { ((MappingMongoConverter) converter).setTypeMapper(new DefaultMongoTypeMapper(null)); } } } 测试成功，数据没有_class字段