GeoJsonPoint反序列化问题序列化对象类
package pojo;
import jdk.nashorn.internal.ir.annotations.Ignore;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import pes.ObjectId;
import org.springframework.data.annotation.Id;
import org.GeoJsonPoint;
import org.db.core.index.CompoundIndex;
import org.db.core.index.Indexed;
import org.db.core.mapping.Document;
import java.beans.Transient;
@Data
@NoArgsConstructor
@AllArgsConstructor
@Document(collection ="ur_location")
@CompoundIndex(name ="location_index", def ="{'location': '2dsphere'}")
public class UrLocation implements java.io.Serializable{
private static final long rialVersionUID =4508868382007529970L;
@Id
private ObjectId id;
@Indexed
private Long urId;//⽤户id
private GeoJsonPoint location;//x：经度 y：纬度
private String address;//位置描述梦到跟别人打架
private Long created;//创建时间
private Long updated;//更新时间
private Long lastUpdated;//上次更新时间
}
测试类
package com.st;
import com.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
中国的旅游胜地
import pojo.UrLocation;
import pes.ObjectId;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.Point;
import org.GeoJsonPoint;
我很孤独import java.io.IOException;
import java.util.Iterator;
小学生科技小发明import java.util.List;
public class GeoJsonPointObjectMapper {
private static final ObjectMapper objectMapper =new ObjectMapper();
private String gps = null;
private String gps2 = null;
@Test
@Test
public void geoJsonPointObjectMapperTest(){
try{
UrLocation urLocation =new UrLocation();
urLocation.tUrId(1L);
/
/ urLocation.tId(new ObjectId());
urLocation.tCreated(System.currentTimeMillis());
//这⾥封装了GeoJsonPoint对象
urLocation.tLocation(new GeoJsonPoint(new Point(113.33831,23.137335)));
urLocation.tAddress("中国");
urLocation.tUpdated(System.currentTimeMillis());
urLocation.tLastUpdated(System.currentTimeMillis());
gps = objectMapper.writeValueAsString(urLocation);
System.out.println(gps);
System.out.println("+++++++++");
GeoJsonPoint geoJsonPoint =new GeoJsonPoint(new Point(666.33831,666.137335));
gps2 = objectMapper.writeValueAsString(geoJsonPoint);
}catch(JsonProcessingException e){
e.printStackTrace();
}
}
@After
public void gpsremapper(){
try{
GeoJsonPoint geoJsonPoint = adValue(gps2, GeoJsonPoint.class);
System.out.println(geoJsonPoint);
System.out.println("==============");
System.out.println("遍历节点拿⽂本(也就是拿字符串)，能拿到");
JsonNode jsonNode = adTree(gps);
List<String> valuesAsText = ("location").findValuesAsText("x");
valuesAsText.forEach(System.out::println);
Iterator<String> location = ("location").fieldNames();
location.forEachRemaining(System.out::println);
System.out.println("==============");
System.out.println("直接字节码对象反序列化就报找不到反序列化字段");
UrLocation urLocation = adValue(gps, UrLocation.class);
System.out.println(urLocation);
}catch(Exception e){
e.printStackTrace();感受的近义词
}
}
}
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6.Final\netty-3.10.6.Final.jar;D:\m aven\repository\com\github\sgroschupf\zkclient\0.1\zkclient-0.1.jar;D:\maven\repository\org\apache\commons\commons-lang3\3.7\commons-lang3-3.
7.jar; D:\maven\repository\org\apache\commons\commons-collections4\4.4\commons-collections4-4.4.jar;D:\maven\repository\com\baomidou\mybatis-plus\3.1.1 \mybatis-plus-3.1.1.jar;D:\maven\repository\com\baomidou\mybatis-plus-extension\3.1.1\mybatis-plus-extension-3.1.1.jar;D:\maven\repository\com\baomid ou\mybatis-plus-core\3.1.1\mybatis-plus-core-3.1.1.jar;D:\maven\repository\com\baomidou\mybatis-plus-annotation\3.1.1\mybatis-plus-annotation-3.1.1.jar ;D:\maven\repository\com\github\jsqlparr\jsqlparr\1.2\jsqlparr-1.2.jar;D:\maven\repository\org\mybatis\mybatis\3.5.1\mybatis-3.5.1.jar;D:\maven\repo sitory\org\mybatis\mybatis-spring\2.0.1\mybatis-spring-2.0.1.jar;D:\maven\repository\com\baomidou\mybatis-plus-boot-starter\3.1.1\mybatis-plus-boot-start er-3.1.1.jar;D:\maven\repository\org\springframework\boot\spring-boot-starter-jdbc\2.1.0.RELEASE\spring-boot-starter-jdbc-2.1.0.RELEASE.jar;D:\maven\r epository\com\zaxxer\HikariCP\3.2.0\HikariCP-3.2.0.jar;D:\maven\repository\org\springframework\spring-jdbc\5.1.2.RELEASE\spring-jdbc-5.1.2.RELEASE.j ar;D:\maven\repository\mysql\mysql-connector-java\5.1.47\mysql-connector-java-5.
1.47.jar;D:\maven\repository\commons-io\commons-io\2.6\commons-io -2.6.jar;D:\maven\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;D:\maven\repository\org\aspectj\aspectjweaver\1.
8.13\aspect jweaver-1.8.13.jar;D:\maven\repository\org\springframework\boot\spring-boot-starter-data-mongodb\2.1.0.RELEASE\spring-boot-starter-data-mongodb-2.
1.0.RELEASE.jar;D:\maven\repository\org\mongodb\mongodb-driver\3.8.2\mongodb-driver-3.8.
2.jar;D:\maven\repository\org\springframework\data\spring-data-mongodb\2.1.2.RELEASE\spring-data-mongodb-2.1.2.RELEASE.jar;D:\maven\repository\org\springframework\data\spring-data-commons\2.1.2.RELE ASE\spring-data-commons-2.1.2.RELEASE.jar;D:\maven\repository\junit\junit\4.12\junit-4.12.jar" junit.JUnitStarter -ideVersion5 -junit4 com.tan st.GeoJsonPointObjectMapper,geoJsonPointObjectMapperTest
{"id":null,"urId":1,"location":{"x":113.33831,"y":23.137335,"type":"Point","coordinates":[113.33831,23.137335]},"address":"中国","created":161063607920 2,"updated":1610636079207,"lastUpdated":1610636079207}
+++++++++
com.fasterxml.InvalidDefinitionException: Cannot construct instance of `org.GeoJsonPoint` (no Creators, like default construct, exist): cannot derialize from Object value (no delegate- or property-bad Creator)
at [Source:(String)"{"x":666.33831,"y":666.137335,"type":"Point","coordinates":[666.33831,666.137335]}"; line:1, column:2]
at com.fasterxml.InvalidDefinitionException.from(InvalidDefinitionException.java:67)
at com.fasterxml.InvalidDefinitionException.from(InvalidDefinitionException.java:67)
at com.fasterxml.jackson.portBadDefinition(DerializationContext.java:1452)
at com.fasterxml.jackson.databind.DerializationContext.handleMissingInstantiator(DerializationContext.java:1028)
at com.fasterxml.jackson.databind.der.BeanDerializerBa.derializeFromObjectUsingNonDefault(BeanDerializerBa.java:1297)
at com.fasterxml.jackson.databind.der.BeanDerializer.derializeFromObject(BeanDerializer.java:326)
at com.fasterxml.jackson.databind.der.BeanDerializer.derialize(BeanDerializer.java:159)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClo(ObjectMapper.java:4013)
at com.fasterxml.jackson.adValue(ObjectMapper.java:3004)
at com.st.GeoJsonPointObjectMapper.gpsremapper(GeoJsonPointObjectMapper.java:47)
flect.NativeMethodAccessorImpl.invoke0(Native Method)
flect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
flect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at flect.Method.invoke(Method.java:498)
at org.del.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.del.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.del.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:33)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
at junit.JUnitStarter.main(JUnitStarter.java:53)
Process finished with exit code 0
意思是
com.fasterxml.InvalidDefinitionException：
⽆法构造`org.GeoJsonPoint`的实例（不存在任何创建者，如默认构造⼀样）
：⽆法从Object值反序列化（没有委托）
-或基于属性的创建者）在[来源：（String）“ {” x“：666.33831，” y“：666.137335，” type“：” Point“，” coordinates“：[666.33831,666.137335]}”;⾏：1，列：2]
好的，逼话太多直接看底层的表⾯层是不是这么⼀回事
/*
* Copyright 2015-2018 the original author or authors.
*
* Licend under the Apache Licen, Version 2.0 (the "Licen");
* you may not u this file except in compliance with the Licen.
* You may obtain a copy of the Licen at
*
* www.apache/licens/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the Licen is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Licen for the specific language governing permissions and
* limitations under the Licen.
*/
package org.;
import java.util.Arrays;
import java.util.List;
import org.Point;
/**
* {@link GeoJson} reprentation of {@link Point}.
* {@link GeoJson} reprentation of {@link Point}.
*
* @author Christoph Strobl
* @since 1.7
* @e <a href="geojson/geojson-spec.html#point">geojson/geojson-spec.html#point</a>
*/
public class GeoJsonPoint extends Point implements GeoJson<List<Double>>{
private static final long rialVersionUID =-8026303425147474002L;
private static final String TYPE ="Point";
/**
襟裾怎么读音* Creates {@link GeoJsonPoint} for given coordinates.
*
* @param x
* @param y
*/
public GeoJsonPoint(double x,double y){
super(x, y);
}
/
**
* Creates {@link GeoJsonPoint} for given {@link Point}.
*
* @param point must not be {@literal null}.
*/
public GeoJsonPoint(Point point){
super(point);
}
/*
* (non-Javadoc)
* @e org.GeoJson#getType()
*/
@Override
public String getType(){
青椒鸡胸return TYPE;
}
/*
* (non-Javadoc)
* @e org.GeoJson#getCoordinates()
*/
@Override
public List<Double>getCoordinates(){
return Arrays.asList(Double.valueOf(getX()), Double.valueOf(getY()));
}
折纸步骤}
上⾯代码已经可以看出它没有普通构造器不说，返回值有很多，但是这些都没有经过⼀个有效构造器可以实现传参，不报错就⿁
了，fastjson反序列化就是靠构造器吃饭的，定义了特殊的构造器Point(GeoJsonPoint是Point的亲⼉⼦)，它实现了有参构造器，它的⼦类GeoJsonPoint就是打它⽗亲的脸，搞特殊认⼲爹implements GeoJson<List> ，就算了，还不提供个完善的构造器。下⾯为亲爹源码
/*
* Copyright 2010-2018 the original author or authors.
*
* Licend under the Apache Licen, Version 2.0 (the "Licen");
* you may not u this file except in compliance with the Licen.
* You may obtain a copy of the Licen at
*
* www.apache/licens/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the Licen is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the Licen for the specific language governing permissions and
* limitations under the Licen.
*/
package org.;
