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ModelMapper从Map转实体,数据类型转换出错failed to convert java.lang.String to java.lang.Long

org.modelmapper.MappingException: ModelMapper mapping errors:

1) Converter org.modelmapper.internal.converter.NumberConverter@1c93b51e failed to convert java.lang.String to java.lang.Long.

1 error

at org.modelmapper.internal.Errors.throwMappingExceptionIfErrorsExist(Errors.java:374)
at org.modelmapper.internal.MappingEngineImpl.map(MappingEngineImpl.java:69)
at org.modelmapper.ModelMapper.mapInternal(ModelMapper.java:497)
at org.modelmapper.ModelMapper.map(ModelMapper.java:340)
at com.springboot.RedisTest.testMapToPojo(RedisTest.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:675)
at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:125)
at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:132)
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:124)
at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:74)
at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)
at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:104)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:62)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:43)
at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:35)
at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)
at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:202)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:198)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:135)
at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:229)
at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:197)
at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:211)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:191)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128)
at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:74)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.modelmapper.MappingException: ModelMapper mapping errors:

1) Error mapping c350300_1 to java.lang.Long

1 error
at org.modelmapper.internal.Errors.toMappingException(Errors.java:258)
at org.modelmapper.internal.converter.NumberConverter.numberFor(NumberConverter.java:176)
at org.modelmapper.internal.converter.NumberConverter.convert(NumberConverter.java:71)
at org.modelmapper.internal.converter.NumberConverter.convert(NumberConverter.java:55)
at org.modelmapper.internal.MappingEngineImpl.convert(MappingEngineImpl.java:337)
at org.modelmapper.internal.MappingEngineImpl.map(MappingEngineImpl.java:96)
at org.modelmapper.internal.MappingEngineImpl.setDestinationValue(MappingEngineImpl.java:247)
at org.modelmapper.internal.MappingEngineImpl.propertyMap(MappingEngineImpl.java:181)
at org.modelmapper.internal.MappingEngineImpl.typeMap(MappingEngineImpl.java:132)
at org.modelmapper.internal.MappingEngineImpl.map(MappingEngineImpl.java:101)
at org.modelmapper.internal.MappingEngineImpl.map(MappingEngineImpl.java:60)
... 66 more
Caused by: java.lang.NumberFormatException: For input string: "c350300_1"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Long.parseLong(Long.java:589)
at java.lang.Long.valueOf(Long.java:803)
at org.modelmapper.internal.converter.NumberConverter.numberFor(NumberConverter.java:166)
... 75 more

 

以上异常很容易看懂,从c350300_1 to java.lang.Long转Long失败,

相关java类如下

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Objects;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder

public class SnapShot {

@JsonIgnore

private Long id;

@JsonIgnore
private Integer distId;

@JsonProperty("name")
@JsonInclude(JsonInclude.Include.NON_EMPTY)
private String distName;

private Integer confirm;
@JsonIgnore
@JsonInclude(JsonInclude.Include.NON_NULL)
private Integer suspect;

private Integer dead;

private Integer heal;

private Float weight;


@JsonInclude(JsonInclude.Include.NON_EMPTY)
private Integer parentId;

@JsonIgnore

private String level;

@JsonInclude(JsonInclude.Include.NON_EMPTY)
private String mapId;


private String updateTime;

@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
SnapShot snapShot = (SnapShot) o;
return Objects.equal(distId, snapShot.distId) &&
Objects.equal(confirm, snapShot.confirm) &&
Objects.equal(suspect, snapShot.suspect) &&
Objects.equal(dead, snapShot.dead) &&
Objects.equal(heal, snapShot.heal)&&
Objects.equal(weight,snapShot.weight)&&
Objects.equal(level, snapShot.level)&&
Objects.equal(mapId,snapShot.mapId);
}

@Override
public int hashCode() {
return 0;
}
}

实体里的mapId属性是String类型的,根据笔者猜测ModelMapper可能根据属性后缀进行联想,企图把它转化整数类型(long),本地maven问题,没下载到源码,没法深入追踪代码。

 

最终在网上找到解决办法

​​https://github.com/modelmapper/modelmapper/issues/312​​

ModelMapper modelMapper = new ModelMapper();
modelMapper.getConfiguration().setMatchingStrategy(MatchingStrategies.STRICT);

map

ModelMapper从Map转实体,数据类型转换出错failed to convert java.lang.String to java.lang.Long_java

 

 

转换成功后:

ModelMapper从Map转实体,数据类型转换出错failed to convert java.lang.String to java.lang.Long_json_02

 

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