spingboot mongo使用，字段用下划线分割，且以hash结尾，查询会出错。

最新推荐文章于 2024-12-08 14:39:48 发布

原创最新推荐文章于 2024-12-08 14:39:48 发布 · 837 阅读

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package com.hcll.sail.demo.mongo.entity;

import lombok.Data;
import org.springframework.data.mongodb.core.mapping.Document;
import org.springframework.data.mongodb.core.mapping.Field;

import java.io.Serializable;

@Document(collection = Student.STUDENT)
@Data
public class Student implements Serializable {
    public static final String STUDENT = "student";
    public static final String ABC = "abc_hash";

    @Field(ABC)
    private String abc;
}

        Criteria c1 = new Criteria();
        c1.and(Student.ABC).is("query_xxxxxxx");
        Query q = new Query(c1);
        Student stu = mongoTemplate.findOne(q, Student.class);
        System.out.println(stu);

出现异常：
java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:787) ~[spring-boot-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768) ~[spring-boot-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) ~[spring-boot-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at com.hcll.sail.demo.mongo.DemoMongoApplication.main(DemoMongoApplication.java:21) ~[classes/:na]
Caused by: org.springframework.data.mapping.MappingException: Couldn’t find PersistentEntity for type java.lang.String!
at org.springframework.data.mapping.context.MappingContext.getRequiredPersistentEntity(MappingContext.java:119) ~[spring-data-commons-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mapping.context.PersistentPropertyPathFactory.getPair(PersistentPropertyPathFactory.java:237) ~[spring-data-commons-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mapping.context.PersistentPropertyPathFactory.createPersistentPropertyPath(PersistentPropertyPathFactory.java:210) ~[spring-data-commons-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mapping.context.PersistentPropertyPathFactory.lambda$getPersistentPropertyPath $2 (P e r s i s t e n t P r o p e r t y P a t h F a c t o r y . j a v a : 183) [s p r i n g - d a t a - c o m m o n s - 2.2.12 . R E L E A S E . j a r : 2.2.12 . R E L E A S E] a t j a v a . b a s e / j a v a . u t i l . c o n c u r r e n t . C o n c u r r e n t M a p . c o m p u t e I f A b s e n t (C o n c u r r e n t M a p . j a v a : 330) [n a : n a] a t o r g . s p r i n g f r a m e w o r k . d a t a . m a p p i n g . c o n t e x t . P e r s i s t e n t P r o p e r t y P a t h F a c t o r y . g e t P e r s i s t e n t P r o p e r t y P a t h (P e r s i s t e n t P r o p e r t y P a t h F a c t o r y . j a v a : 182) [s p r i n g - d a t a - c o m m o n s - 2.2.12 . R E L E A S E . j a r : 2.2.12 . R E L E A S E] a t o r g . s p r i n g f r a m e w o r k . d a t a . m a p p i n g . c o n t e x t . P e r s i s t e n t P r o p e r t y P a t h F a c t o r y . f r o m (P e r s i s t e n t P r o p e r t y P a t h F a c t o r y . j a v a : 97) [s p r i n g - d a t a - c o m m o n s - 2.2.12 . R E L E A S E . j a r : 2.2.12 . R E L E A S E] a t o r g . s p r i n g f r a m e w o r k . d a t a . m a p p i n g . c o n t e x t . P e r s i s t e n t P r o p e r t y P a t h F a c t o r y . f r o m (P e r s i s t e n t P r o p e r t y P a t h F a c t o r y . j a v a : 110) [s p r i n g - d a t a - c o m m o n s - 2.2.12 . R E L E A S E . j a r : 2.2.12 . R E L E A S E] a t o r g . s p r i n g f r a m e w o r k . d a t a . m a p p i n g . c o n t e x t . A b s t r a c t M a p p i n g C o n t e x t . g e t P e r s i s t e n t P r o p e r t y P a t h (A b s t r a c t M a p p i n g C o n t e x t . j a v a : 275) [s p r i n g - d a t a - c o m m o n s - 2.2.12 . R E L E A S E . j a r : 2.2.12 . R E L E A S E] a t o r g . s p r i n g f r a m e w o r k . d a t a . m o n g o d b . c o r e . c o n v e r t . Q u e r y M a p p e r$ MetadataBackedField.getPath(QueryMapper.java:1100) ~[spring-data-mongodb-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mongodb.core.convert.QueryMapper $M e t a d a t a B a c k e d F i e l d . < i n i t > (Q u e r y M a p p e r . j a v a : 968) [s p r i n g - d a t a - m o n g o d b - 2.2.12 . R E L E A S E . j a r : 2.2.12 . R E L E A S E] a t o r g . s p r i n g f r a m e w o r k . d a t a . m o n g o d b . c o r e . c o n v e r t . Q u e r y M a p p e r$ MetadataBackedField.(QueryMapper.java:945) ~[spring-data-mongodb-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mongodb.core.convert.QueryMapper.createPropertyField(QueryMapper.java:263) ~[spring-data-mongodb-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mongodb.core.convert.QueryMapper.getMappedObject(QueryMapper.java:142) ~[spring-data-mongodb-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mongodb.core.MongoTemplate.doFindOne(MongoTemplate.java:2473) ~[spring-data-mongodb-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mongodb.core.MongoTemplate.findOne(MongoTemplate.java:820) ~[spring-data-mongodb-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at org.springframework.data.mongodb.core.MongoTemplate.findOne(MongoTemplate.java:807) ~[spring-data-mongodb-2.2.12.RELEASE.jar:2.2.12.RELEASE]
at com.hcll.sail.demo.mongo.DemoMongoApplication.run(DemoMongoApplication.java:40) ~[classes/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:784) ~[spring-boot-2.2.12.RELEASE.jar:2.2.12.RELEASE]
… 5 common frames omitted